4.6 Review

Hybrid Polymer-Silica Nanostructured Materials for Environmental Remediation

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Article Chemistry, Analytical

Mesoporous silica nanoparticles modified with stimuli-responsive polymer brush as an efficient adsorbent for chlorophenoxy herbicides removal from contaminated water

Khalid M. Alotaibi

Summary: In this study, mesoporous silica nanoparticles (MSNs) with poly(2-(tert-butylamino)ethyl methacrylate) brushes (MSN-PTBAEMA) were synthesized and shown to efficiently remove the herbicide 2,4,5-trichlorophenoxyacetic acid (TCA) from water. The MSN-PTBAEMA exhibited a high adsorption capacity and pH-responsive behavior, making it a promising adsorbent for herbicide removal.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2023)

Article Chemistry, Multidisciplinary

Engineered mesoporous silica-based nanoparticles as smart chemotherapy nanodevice for bortezomib administration

M. De Santo et al.

Summary: This study describes a nanodevice based on mesoporous silica that can selectively deliver an antineoplastic drug to multiple myeloma cells with over-expressed folate receptors. The device showed no toxicity to healthy cells in vitro and released the drug in an acidic tumor environment. After suspendability assessment, an injectable formulation was developed that exhibited higher antitumor efficacy and lower toxicity compared to conventional chemotherapy in a mouse model.

MATERIALS CHEMISTRY FRONTIERS (2023)

Article Materials Science, Multidisciplinary

Zwitterionic Polymer Brushes Coated with Mesoporous Silica Nanoparticles as Efficient Adsorbents for Dye Removal from Aqueous Solutions

Abdullah M. Alswieleh

Summary: A polymer brush derived from poly(2-(tert-butylamino)ethyl methacrylate)-coated mesoporous silica nanoparticles (PTBAEMA-SO3H@MSNPs) was successfully fabricated in this study. The structure and morphology of PTBAEMA-SO3H@ MSNPs were analyzed using various techniques, including transmission electron microscopy and Fourier-transform infrared spectroscopy. The optimal conditions for the removal of rhodamine B (Rh B) and crystal violet (CV) were determined, and the adsorption equilibrium was fitted with different isotherm models. The study found that PTBAEMA-SO3H@MSNPs are highly effective in removing Rh B and CV from water samples.

ACS APPLIED POLYMER MATERIALS (2023)

Review Chemistry, Applied

Phytogenically bioengineered metal nanoarchitecture for degradation of refractory dye water pollutants: A pragmatic minireview

Stephen Sunday Emmanuel et al.

Summary: This study provides a comprehensive review of the mechanism and application of metal nanoparticles in the treatment of dye effluent. By using scientific databases to search for scholarly papers, the researchers found that nanoparticles have emerged as an efficient solution for dye removal and degradation due to their chemical reactivity and unique surface characteristics. Furthermore, bimetallic nanoparticles have shown remarkable effects in dye effluent treatment.

APPLIED ORGANOMETALLIC CHEMISTRY (2023)

Review Energy & Fuels

Synthesis and Application of Mesoporous Materials: Process Status, Technical Problems, and Development Prospects: A Mini-Review

Zhuo Li et al.

Summary: This paper reviews the recent methods used to synthesize mesoporous materials and elaborates on the current status of their applications in the fields of biomedicine, environmental and energy, electrochemical energy storage, and gas separation. It highlights the importance and potential of mesoporous materials in chemical research. Finally, it briefly discusses the technical issues and future directions in the synthesis and application of mesoporous materials.

ENERGY & FUELS (2023)

Review Biochemistry & Molecular Biology

Brief History, Preparation Method, and Biological Application of Mesoporous Silica Molecular Sieves: A Narrative Review

Qiuping Li et al.

Summary: It has been over 30 years since the first ordered mesoporous silica molecular sieve (MCM-41) was reported, but the interest in exploring mesoporous silica continues to grow due to its desirable properties. This review provides a brief history of the discovery of mesoporous silica and summarizes several important families of mesoporous silica. It also discusses the synthesis methods and biological applications of different types of mesoporous silica.

MOLECULES (2023)

Article Engineering, Chemical

Highly effective and selective removal of lead ions by polymer-grafted silica-coated acid-resistant magnetic chitosan composites

Yaoyao Huang et al.

Summary: A novel magnetic separation adsorbent, polymer-grafted silica-coated acid-resistant magnetic chitosan composite (PMSC), was constructed and applied for efficient and selective adsorption of Pb(II) from aqueous solutions.

SEPARATION AND PURIFICATION TECHNOLOGY (2023)

Article Chemistry, Analytical

Synthesis of a magnetic SBA-15-NH2@Dual-Template Imprinted Polymer for solid phase extraction and determination of Pb and Cd in vegetables; Box Behnken design

Alireza Taheri et al.

Summary: In this study, a simple one-step method was used to extract and determine lead and cadmium. The important variables in extraction and pre-concentration were identified through analysis of variance and their behavior was modeled. The synthesized dual-template imprinted polymer demonstrated effective adsorption and determination of lead and cadmium.

ANALYTICA CHIMICA ACTA (2022)

Article Engineering, Environmental

Membrane distillation and dispersive solvent extraction in a closed-loop process for water, sulfuric acid and copper recycling from gold mining wastewater

Victor Rezende Moreira et al.

Summary: Membrane distillation (MD) and dispersive liquid-liquid extraction (d-LLE) were integrated for gold mining wastewater beneficiation, achieving high efficiency in sulfuric acid recovery from MD concentrate and copper recovery from the raffinate, with favorable economic assessment for both water and copper recovery. The endothermic nature of acid extraction and the selective recovery of copper through Lix 84-I were key aspects of the integrated system, contributing to a more sustainable approach towards raw material utilization.

CHEMICAL ENGINEERING JOURNAL (2022)

Review Environmental Sciences

Novel insights into the adsorption of organic contaminants by biochar: A review

Zirui Luo et al.

Summary: Biochar plays a crucial role in wastewater and polluted soil decontamination as an adsorbent for organic contaminants. However, further research is needed on aspects such as dynamic adsorption, potential environmental risks, interactions between biochar and soil microbes to facilitate its practical application. This research will contribute to a better understanding of organic contaminants' adsorption removal by biochar.

CHEMOSPHERE (2022)

Article Environmental Sciences

Bioremediation of PAHs and heavy metals co-contaminated soils: Challenges and enhancement strategies

Mukhtiar Ali et al.

Summary: This paper provides an in-depth review of the bioremediation of co-contaminated PAHs and heavy metals, examining their sources, transport, and the mechanisms and challenges of bioremediation under co-contaminated conditions. The paper also presents emerging strategies to overcome bioavailability problems and improve the effectiveness of bioremediation.

ENVIRONMENTAL POLLUTION (2022)

Article Chemistry, Analytical

Adsorption of paracetamol in contaminated water through pH-responsive polymer-brush-grafted mesoporous silica nanoparticles

Latifah Hamad K. Alfhaid

Summary: This study demonstrated the successful removal of paracetamol from aqueous solutions using mesoporous silica nanoparticles grafted with pH-responsive poly(2-(tert-butylamino)ethyl methacrylate) brushes. The adsorption efficiency was found to be highest at pH 5-7, with a removal rate of 92%. The maximum adsorption capacity of MSN-PTBAEMA for PCM was recorded at 237 mg/g.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY (2022)

Review Biochemistry & Molecular Biology

Polymeric Nanocomposites for Environmental and Industrial Applications

Mohamed S. A. Darwish et al.

Summary: Polymeric nanocomposites (PNC) have great potential for various applications due to their integrated structure and the ability to control their properties. They are cost-effective and lightweight, making them suitable for environmental and industrial applications, especially in the field of stimuli-responsive nanocomposites.

INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES (2022)

Article Polymer Science

Gamma Irradiation-Induced Preparation of Polyacrylonitrile Acrylamide Nano-silica for Removal of Some Hazardous Metals

Mohamed Ragab Abass et al.

Summary: Gamma-irradiation initiated polymerization was used to prepare P(AN-AM)-NS nanocomposite, and various analytical tools were employed to analyze its morphology, functional groups, and structure. The nanocomposite showed strong ability to remove various ions in a multi-component system, with kinetics following a pseudo-second-order model and thermodynamics indicating endothermic and spontaneous reactions. The study suggests that P(AN-AM)-NS nanocomposite is a promising sorbent for purification of effluent contaminated with studied ions.

JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS (2022)

Review Engineering, Chemical

Recent advances in applications of low-cost adsorbents for the removal of heavy metals from water: A critical review

Muhammad Bilal et al.

Summary: This review critically evaluates the modern developments in applications of bio-sorbents in water purification with an emphasis on adsorption. It describes in detail the heavy metals adsorption onto different bio-waste derived adsorbents, including the adsorption mechanism and their regeneration abilities. Major challenges, hurdles, and opportunities are discussed, along with a roadmap and future research recommendations to ensure the effective applications of bio-sorbents in water purification systems.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Green & Sustainable Science & Technology

Phenol Adsorption Mechanism of Organically Modified Bentonite and Its Microstructural Changes

Haijie He et al.

Summary: This study investigated the adsorption of phenol onto cetyltrimethylammonium bromide modified bentonite (OMB). The results showed that the adsorption rate of phenol was positively correlated with the initial concentration, and the maximum adsorption capacity was 10.1 mg/g. The pseudo-second-order kinetic model was found to better describe the adsorption kinetics. Additionally, the properties of OMB samples with different adsorption times were analyzed using SEM and XRD.

SUSTAINABILITY (2022)

Article Materials Science, Composites

High performance GO/MXene/PPS composite filtration membrane for dye wastewater treatment under harsh environmental conditions

Xin-Yu Ma et al.

Summary: The study presents a new two-dimensional composite GO/MXene-PPS (GMS) membrane with efficient water treatment capabilities and resistance to harsh environments.

COMPOSITES COMMUNICATIONS (2022)

Article Nanoscience & Nanotechnology

Magnetically sensitive and high template affinity surface imprinted polymer prepared using porous TiO2-coated magnetite-silica nanoparticles for efficient removal of tetrabromobisphenol A from polluted water

Yanming Shao et al.

Summary: A novel molecularly imprinted polymer (MIP) was prepared using magnetic mesoporous TiO2 as matrix for the efficient adsorption of TBBPA, showing excellent affinity towards TBBPA in the presence of structural analogs. The MIP can be repeatedly reused due to the magnetic core.

ADVANCED COMPOSITES AND HYBRID MATERIALS (2022)

Article Environmental Sciences

Nanomaterial-based biosorbents: Adsorbent for efficient removal of selected organic pollutants from industrial wastewater

Hussein K. Okoro et al.

Summary: Organic pollutants pose serious environmental and health issues, and biosorption is a promising alternative strategy for their removal due to its simplicity of operation and high sorption capacity.

EMERGING CONTAMINANTS (2022)

Article Environmental Sciences

Two dimensional MXenes as emerging paradigm for adsorptive removal of toxic metallic pollutants from wastewater

Tahir Rasheed et al.

Summary: Effective methods for removing harmful metals from wastewater have a huge impact on reducing freshwater scarcity, with adsorption being one of the most promising approaches due to its simplicity and low cost. MXene-based nanoarchitectures have proven to be effective adsorbents in various applications, thanks to their unique features. Future research directions should focus on improving MXene-based nanostructures with distinct compositions, shapes, and physiochemical merits for effective removal of toxic metals from wastewater.

CHEMOSPHERE (2022)

Review Engineering, Environmental

Electrodialysis for metal removal and recovery: A review

Jan-Max Arana Juve et al.

Summary: Electrodialysis (ED) is a versatile technology for treating acidic effluents containing metal species. It offers continuous operation, scalability, and ease of use, addressing many drawbacks of current technologies. This critical review covers the types and state-of-the-art of ED processes, important parameters, and limitations, perspectives, and future research trends. The review also discusses common issues in ED systems and suggests potential solutions. Furthermore, it provides insights on materials development for membranes and electrodes to advance metal recovery using ED technology.

CHEMICAL ENGINEERING JOURNAL (2022)

Article Environmental Sciences

Activated carbon from biomass waste precursors: Factors affecting production and adsorption mechanism

Muniandy Gayathiri et al.

Summary: The use of activated carbon is increasing in various industrial applications, and its production from biomass waste requires further research on key factors and mechanisms. Optimizing key parameters and understanding the characteristics and mechanisms of activated carbon are important for its effective production and application.

CHEMOSPHERE (2022)

Review Environmental Sciences

Review on the contamination and remediation of polycyclic aromatic hydrocarbons (PAHs) in coastal soil and sediments

Chaomeng Dai et al.

Summary: The rapid economic and population growth in coastal areas has led to serious PAHs pollution. This review compared the pollution characteristics of different coastal areas and summarized the remediation methods for PAHs contamination in soil and sediments. It also introduced new green and sustainable systems. Integrated approaches are the best choice for PAHs remediation, but new technologies are still needed due to environmental heterogeneity.

ENVIRONMENTAL RESEARCH (2022)

Article Environmental Sciences

Gravity settling and centrifugation increase the acid buffer capacity of activated sludge

Jia Meng et al.

Summary: This study found that sludge thickening can change the buffer capacity of sludge, which affects the efficiency and acid/base usage of sludge treatment.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

Article Engineering, Chemical

Development in forward Osmosis-Membrane distillation hybrid system for wastewater treatment

Ibrar Ibrar et al.

Summary: Water scarcity has negative impacts on economic, social, and ecological balance. Wastewater reuse is a solution to this issue. Forward osmosis (FO) is a popular technology, but draw solution regeneration is a key challenge. Membrane distillation (MD) is an emerging technology that offers a cost-effective purification process. Research on the integrated FO-MD process is important to overcome the limitations of individual membrane processes.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Engineering, Chemical

Deciphering the spatial fouling characteristics of reverse osmosis membranes for coal chemical wastewater treatment

Lequn Sun et al.

Summary: Reverse osmosis membranes are widely used for the treatment of coal chemical wastewater. However, membrane fouling is a challenging problem that affects permeate flux and water quality. This study analyzed the spatial distribution of fouling and identified biofouling as the main cause of flux decline. Suggestions for fouling control include anti-biofouling measures, antiscaling schemes, and customized designs.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Review Engineering, Chemical

A review on ion-exchange nanofiber membranes: properties, structure and application in electrochemical (waste)water treatment

Bianca Swanckaert et al.

Summary: Considering the challenges of water scarcity and wastewater management, electrochemical water treatment processes are increasingly being used in various applications such as desalination, resource recovery, energy production, and wastewater disinfection. Ion-exchange nanofiber membranes are a crucial component in these processes, and research efforts have focused on their production and structural design due to their unique properties. This review discusses different strategies used for producing and designing ion-exchange nanofiber membranes, and highlights their potential in electrochemical separation and degradation applications.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Engineering, Environmental

Electrolysis catalyzed ozonation for advanced wastewater treatment

Anthony Heebner et al.

Summary: This study evaluated a new combined treatment approach by combining ozonation and electrolysis for the mineralization of organic compounds in water. The results showed that the method was most effective for TOC removal in alkaline conditions and significantly enhanced performance compared to ozonation alone in acidic conditions. The initial pH had a more significant effect on TOC removal than current density, but both parameters were relevant. Under optimized conditions, 63% TOC removal was achieved.

JOURNAL OF WATER PROCESS ENGINEERING (2022)

Article Engineering, Environmental

Enhanced treatment of oily ink wastewater using a modified degreaser by nano-Fe3O4/Na2S2O8: Efficient coagulation and sedimentation

Xi-Qi Li et al.

Summary: Ink wastewater containing hazardous substances can be efficiently treated by utilizing nano-materials to remove oil and pollutants, leading to good coagulation and sedimentation.

JOURNAL OF WATER PROCESS ENGINEERING (2022)

Article Chemistry, Physical

Light-regulated growth of polymer chains from the surface of RAFT agent primed mesoporous silica nanoparticles

Tina Joshi et al.

Summary: Reversible addition-fragmentation chain transfer (RAFT) polymerization is widely studied, and the photo-induced electron/energy transfer (PET)-RAFT polymerization has gained interest as a greener and more sustainable synthesis method. In this study, mesoporous silica nanoparticles with an in-built RAFT agent were synthesized using a stepwise co-condensation method. Surface-initiated RAFT polymerization was performed using thermal initiation and visible light-regulated PET-RAFT polymerization. The light-regulated PET-RAFT polymerization showed faster reaction compared to the thermally initiated RAFT polymerization. This method has potential applications in drug delivery, catalysis, and nanoconfinement.

SURFACES AND INTERFACES (2022)

Article Medicine, General & Internal

The UN reports global asymmetries in population growth

John Zarocostas

LANCET (2022)

Article Engineering, Biomedical

Mesoporous silicas in materials engineering: Nanodevices for bionanotechnologies

Elisabetta Mazzotta et al.

Summary: This review explores the valuable opportunities offered by mesoporous silica nanoparticles in the field of nanodevice development for bionanotechnology applications. The focus is on cancer-related applications, particularly the design and development process of selective administration of anticancer agents to cancer tissues. The limitations and potential technical solutions are discussed. Difficult tissues and advanced applications such as cancer immunotherapy, diagnostics, theranostics, and gene therapy are also considered. Lastly, the authors provide their opinion on the translation of this generation of nanodevices into practical clinical applications and eventually into the market.

MATERIALS TODAY BIO (2022)

Article Chemistry, Multidisciplinary

Grafting of Poly(ethylene imine) to Silica Nanoparticles for Odor Removal from Recycled Materials

Sarah Cohen et al.

Summary: This article describes an innovative method of grafting PEI to silica nanoparticles using ultrasonics to remove odor from recycled plastic materials. The results show a substantial reduction in odor intensity and volatile organic compounds, indicating the potential commercial use of this PEI/Si nanocomposite.

NANOMATERIALS (2022)

Article Engineering, Chemical

High-Efficient Anionic Dyes Removal from Water by Cationic Polymer Brush Functionalized Magnetic Mesoporous Silica Nanoparticles

Abeer Beagan et al.

Summary: Efficient removal of dyes from contaminated water using magnetic mesoporous nanoparticles modified with cationic polymer brush has been reported. The materials showed high adsorption capacity, rapid synthesis process, and easy separation from solution, making them effective for removing other pollutants from water and wastewater.

PROCESSES (2022)

Review Environmental Sciences

Adsorption of persistent organic pollutants (POPs) from the aqueous environment by nano-adsorbents: A review

Joshua O. Ighalo et al.

Summary: Urbanization and industrial activities contribute to the distribution of toxic contaminants in water, particularly persistent organic pollutants (POPs). Nanomaterials have shown effective adsorption of POPs, making them a promising method for removal. However, challenges regarding adsorbent ecotoxicity and safe disposal still need to be addressed.

ENVIRONMENTAL RESEARCH (2022)

Article Engineering, Chemical

Preparation of isoelectric point-switchable polymer brush-grafted mesoporous silica using RAFT polymerization with high performance for Ni (II) adsorption

Yu Xing et al.

Summary: Polymer brushes with pI-switchable property and high grafting groups content were prepared on the surface of mesoporous silica microspheres using RAFT polymerization. The resulting materials showed fast adsorption rate and high adsorption capacity for removing Ni(II) from aqueous solution. The adsorbent exhibited good reusability and high desorption efficiency, with the adsorption mechanism mainly attributed to electrostatic interaction and complexation.

POWDER TECHNOLOGY (2022)

Article Engineering, Environmental

Electrocoagulation technique for continuous industrial licorice processing wastewater treatment in a single reactor employing Fe-rod electrodes: Process modeling and optimization and operating cost analysis

S. Abbasi et al.

Summary: The study evaluated a novel laboratory scale continuous electrocoagulation (EC) reactor using iron rod electrodes for treating licorice processing wastewater. Results showed that the EC system with iron rod electrodes performed better in turbidity removal compared to iron plate electrodes.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

Review Chemistry, Multidisciplinary

Functionalized nanoparticles and their environmental remediation potential: a review

Hamza Rafeeq et al.

Summary: Environmental pollution is a major cause of global diseases, with developing nations facing greater risks due to poverty, lack of investment in new technologies, and inadequate environmental regulations. Nanotechnology offers potential solutions to environmental problems by improving air, water, and soil quality through the use of nanoparticles.

JOURNAL OF NANOSTRUCTURE IN CHEMISTRY (2022)

Article Environmental Sciences

Enhanced oil recovery using hyperbranched polyglycerol polymer-coated silica nanoparticles

Wamda Faisal Elmobarak et al.

Summary: Functionalized Fe3O4-SiO2 magnetic nanoparticles coated with hyperbranched polyglycerol polymer were developed for oil recovery from oil in water emulsions. The newly developed demulsifier PSiMNPs showed high efficiency in demulsification and can be reused multiple times. The surface modification of PSiMNPs enhanced oil adsorption, increased adsorption capacity, and extended service life, resulting in improved cost and process feasibility for oil recovery applications.

CHEMOSPHERE (2021)

Article Chemistry, Applied

Mesoporous silica nanoparticles modified with N-rich polymer as a potentially environmentally-friendly delivery system for pesticides

Olivija Plohl et al.

Summary: The article discusses the design of environmentally-friendly nanocarriers for improved controlled pesticide release, which also act as a potential soil improver by providing Si and N as key nutrient sources. The study developed a novel delivery system for post-loading a biopesticide onto mesoporous silica nanoparticles (MeSiNPs) functionalised with N-rich polymer, showing efficient controlled and slow release behavior for the model biopesticide citridiol.

MICROPOROUS AND MESOPOROUS MATERIALS (2021)

Article Chemistry, Inorganic & Nuclear

Poly(amidoamine) dendrimer decorated dendritic fibrous nano-silica for efficient removal of uranium (VI)

Fang Wang et al.

Summary: Efficient adsorbents for U(VI) removal from aqueous solution are crucial for energy strategy and environmental safety. The nanocomposite, with complexation between amine/amide groups and U(VI) ions, shows fast adsorption kinetics and considerable adsorption capacity, along with excellent reusability.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

Article Materials Science, Multidisciplinary

Rapid pore expansion of mesoporous silica-based materials using microwave irradiation and pore swelling agents

A. Bordoni et al.

Summary: In this study, the use of microwave radiation as a postsynthesis treatment for expanding the pore size of non-calcined SiO2-based mesoporous materials was analyzed. Compared to traditional hydrothermal treatments, microwave irradiation significantly reduces the processing time and is compatible with various surfactant pore templates. This approach allows for easy postprocessing of non-calcined templated siliceous materials and customization of their final pore dimensions.

MATERIALS CHEMISTRY AND PHYSICS (2021)

Article Biochemistry & Molecular Biology

Insight into chitosan/mesoporous silica nanocomposites as eco-friendly adsorbent for enhanced retention of U (VI) and Sr (II) from aqueous solutions and real

Moustafa R. Abukhadra et al.

Summary: The CH/MCM-48 composite demonstrated promising retention capacities for U(VI) and Sr(II) ions and showed significant recyclability, indicating its potential in the removal of radioactive pollutants in wastewater treatment.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2021)

Review Environmental Sciences

Pharmaceuticals Market, Consumption Trends and Disease Incidence Are Not Driving the Pharmaceutical Research on Water and Wastewater

Omar Israel Gonzalez Pena et al.

Summary: The consumption of pharmaceuticals is increasing due to the need to treat aging-related and chronic diseases, leading to historic growth in market revenues worldwide. However, the discharge of pharmaceuticals into the environment is a significant environmental concern and human health risk. Research shows that existing studies do not fully reflect the most produced and consumed pharmaceuticals on the market, indicating that other drivers are promoting pharmaceutical research outside of market trends.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH (2021)

Article Materials Science, Multidisciplinary

Synthesis of Silica Particles Using Ultrasonic Spray Pyrolysis Method

Srecko Stopic et al.

Summary: The synthesis of silica particles through ultrasonic spray pyrolysis at high temperature allows for controlled morphology and size, with experimental results matching theoretical calculations. Characterization using X-ray diffraction and scanning electron microscopy is common practice. Compared to other methods, ultrasonic spray offers the advantages of easy setup of individual process segments, one-step continuous synthesis, and the ability to synthesize nanoparticles from various precursors.

METALS (2021)

Article Multidisciplinary Sciences

Deep mitigation of CO2 and non-CO2 greenhouse gases toward 1.5 °C and 2 °C futures

Yang Ou et al.

Summary: Examining 90 mitigation scenarios pairing different levels of CO2 and non-CO2 GHG abatement pathways can help understand how comprehensive greenhouse gas mitigation is crucial in achieving the 1.5 degrees C and 2 degrees C climate change goals.

NATURE COMMUNICATIONS (2021)

Article Chemistry, Physical

Construction of dual Z-scheme g-C3N4/Bi4Ti3O12/Bi4O5I2 heterojunction for visible and solar powered coupled photocatalytic antibiotic degradation and hydrogen production: Boosting via I-/I3- and Bi3+/Bi5+ redox mediators

Amit Kumar et al.

Summary: Inspired by waste to energy production, a dual Z-scheme advanced photocatalyst g-C3N4/Bi4Ti3O12/Bi4O5I2 heterojunction was constructed for efficient coupled photocatalytic H-2 evolution and antibiotics degradation. The optimal photocatalyst showed excellent H-2 production rate under visible light and high removal efficiency of antibiotics, showcasing a promising approach for clean energy production and environmental detoxification through high photo-absorbing heterojunction photocatalysts.

APPLIED CATALYSIS B-ENVIRONMENTAL (2021)

Review Materials Science, Multidisciplinary

Nanomaterial by Sol-Gel Method: Synthesis and Application

Dmitry Bokov et al.

Summary: The sol-gel process is a chemical method for synthesizing nanostructures, particularly metal oxide nanoparticles. It involves converting molecular precursors into a gel through hydrolysis/alcoholysis, followed by drying, powdering, and calcination. The method is cost-effective, allows control over chemical composition, and finds various applications in industries such as optics, electronics, energy, and biosensors.

ADVANCES IN MATERIALS SCIENCE AND ENGINEERING (2021)

Article Chemistry, Multidisciplinary

Quaternization of Poly(2-diethyl aminoethyl methacrylate) Brush-Grafted Magnetic Mesoporous Nanoparticles Using 2-Iodoethanol for Removing Anionic Dyes

Khalid Mohammed Alotaibi et al.

Summary: Magnetic mesoporous silica nanoparticles (Fe3O4-MSNs) with a high surface area were successfully synthesized and modified with poly(2-diethyl aminoethyl methacrylate) (PDEAEMA) brushes. The quaternization process of the polymer chains improved the adsorption capacity of the synthesized materials towards methyl orange and sunset yellow dyes under acidic conditions.

APPLIED SCIENCES-BASEL (2021)

Article Materials Science, Multidisciplinary

Synthesis of mesoporous silica with ionic liquid surfactant as template

Jun Wang et al.

Summary: Ionic liquid surfactants were used to prepare mesoporous silica with controllable morphology, with [C(16)MPip][Br] and [C(16)MMor][Br] resulting in silica with a hexagonal structure and larger specific surface area, while silica prepared with [C(16)MPyr][Br] had larger pore size but less regular channel structure compared to the other two.

MATERIALS LETTERS (2021)

Article Materials Science, Multidisciplinary

Oil Encapsulation Advantages of Amphiphilic Polymer-Grafted Silica Nanoparticle Systems

Christopher B. Keller et al.

Summary: This study expands upon previous work on amphiphilic-grafted nanoparticles and investigates their oil encapsulation properties through UV and DSC analysis. The results suggest that these nanoparticles can encapsulate a significant amount of crude oil and do not have a critical micelle concentration.

ACS APPLIED POLYMER MATERIALS (2021)

Article Chemistry, Analytical

Preparation and properties of aflatoxins imprinted polymer grafted onto the surface of mesoporous silica SBA-15 functionalized with double bonds

Lixin Song et al.

Summary: A new surface-imprinted polymer was successfully synthesized onto mesoporous silica Santa Barbara-15, which was then used for efficient extraction of aflatoxin from grain. The polymer showed better extraction performance for aflatoxins compared to the commercial immunoaffinity column, making it suitable for analysis and detection of aflatoxins in cereal samples.

JOURNAL OF SEPARATION SCIENCE (2021)

Article Nanoscience & Nanotechnology

A novel and facile green synthesis of SiO2 nanoparticles for removal of toxic water pollutants

Pratibha Sharma et al.

Summary: The study presents a green synthesis method for SiO2 nanoparticles, successfully achieving amine functionalization of SiO2 NPs and studying the impact on their adsorption properties. Characterization was performed using various analytical techniques. The results demonstrate the superior adsorption removal efficiency of A-SiO2 NPs for water pollutants.

APPLIED NANOSCIENCE (2021)

Article Engineering, Environmental

Adsorption and reusability performance of M-Fe (M = Co, Cu, Zn and Ni) layered double hydroxides for the removal of hazardous Eriochrome Black T dye from different water streams

Mukarram Zubair et al.

Summary: CuFe LDH exhibited the best adsorption and reusability performance among the prepared LDHs for EBT dye removal in different water matrices, indicating its potential as an effective adsorbent in decontaminating industrial effluents.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

Article Engineering, Environmental

Enhanced remediation of As (V) and Hg (II) ions from aqueous environments using β-cyclodextrin/MCM-48 composite: Batch and column studies

May N. Bin Jumah et al.

Summary: The hybrid structure of mesoporous silica and beta-cyclodextrin polymer showed promising uptake affinities for As (V) and Hg (II) ions, with maximum capacities reached at 265.6 mg/g and 207.9 mg/g, respectively. The adsorption process followed Pseudo-First order kinetic behavior and Langmuir equilibrium properties, with physical nature emphasized by Gaussian energy values. Thermodynamic studies demonstrated spontaneous, favorable, and exothermic reactions during adsorption. In column systems, the composite achieved total removal percentages of 72.8% (As (V)) and 60.4% (Hg (II)), making it a promising material for decontamination purposes.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

Article Materials Science, Multidisciplinary

Chitosan oligosaccharide/silica nanoparticles hybrid porous gel for mercury adsorption and detection

Riham El Kurdi et al.

Summary: A hybrid porous gel was prepared in situ by the interaction of silica nanoparticles with chitosan oligosaccharide lactate. The gel was used to remove mercury ions from aqueous media, and the metal ion removal was studied under different conditions, showing selectivity towards mercury. The detection of mercury ions was performed using emission fluorescence spectroscopy with the addition of a specific fluorophore molecule, such as curcumin, showing a low limit of detection value.

MATERIALS TODAY COMMUNICATIONS (2021)

Review Chemistry, Multidisciplinary

Functionalized silica nanoparticles: classification, synthetic approaches and recent advances in adsorption applications

Hao Li et al.

Summary: Nanotechnology is being rapidly applied in fields such as electronics, aerospace, medicine, etc. Silica nanoparticles have stable structures, high specific surface areas, and adjustable pore structures, making them potential adsorbents for pollutants.

NANOSCALE (2021)

Article Chemistry, Multidisciplinary

Synthesizing a surface-imprinted polymer based on the nanoreactor SBA-15 for optimizing the adsorption of salicylic acid from aqueous solution by response surface methodology†

Haiqing Xu et al.

Summary: A novel salicylic acid molecularly imprinted polymer was successfully synthesized using a surface imprinting technique based on SBA-15 nanoreactor. The obtained MIP showed excellent ordered hexagonal mesoporous structure and high adsorption capacity for SA, with the ability to be regenerated and reused multiple times.

NEW JOURNAL OF CHEMISTRY (2021)

Review Chemistry, Physical

Multifaceted Application of Silica Nanoparticles. A Review

Peerzada Gh Jeelani et al.

SILICON (2020)

Article Chemistry, Multidisciplinary

Mesoporous Silica Nanoparticles for Drug Delivery

Miguel Manzano et al.

ADVANCED FUNCTIONAL MATERIALS (2020)

Review Engineering, Environmental

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