Engineering sodium alginate-SiO2 composite beads for efficient removal of methylene blue from water

Article Environmental Sciences

Recent advances in nanotechnology for remediation of heavy metals

Abel Inobeme et al.

Summary: Heavy metal contamination is a serious environmental issue that poses threats to humans and the ecosystem. Nanomaterials exhibit unique potential for the removal of heavy metals, attracting researchers from various fields.

ENVIRONMENTAL MONITORING AND ASSESSMENT (2023)

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Article Environmental Sciences

Substantial increase in adsorption efficiency of local clay-alginate beads toward methylene blue impregnated with SDS

Muzdalfa Almas et al.

Summary: Local clay-alginate beads loaded with sodium dodecyl sulfate (SDS) have been prepared and investigated as an effective adsorbent for methylene blue (MB) adsorption. The beads exhibit high adsorption efficiency and recyclability, making them a promising adsorbent for MB extraction.

ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2023)

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Article Environmental Sciences

Spherical mesoporous silica designed for the removal of methylene blue from water under strong acidic conditions

Felipe do Casal de Paula et al.

Summary: Mesoporous silica spheres were synthesized using solvothermal method and modified by thermal treatment for the removal of cationic dyes under strong acidic conditions. The adsorption kinetics followed a pseudo-second-order model, indicating physical forces as the driving mechanism. The adsorbents showed significant removal efficiency in a fast-contact system.

ENVIRONMENTAL TECHNOLOGY (2022)

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Article Engineering, Environmental

Tough porous nanocomposite hydrogel for water treatment

Zhiying Wu et al.

Summary: A cost-effective, stable, and recyclable adsorbent with high adsorption capacity and rapid adsorption kinetics is developed by synthesizing a tough porous nanocomposite hydrogel using biochar nanoparticles and interconnected pores. The hydrogel provides mechanical strength, biochar provides adsorption sites, and interconnected pores expedite solvent transport. The hydrogel shows enhanced adsorption performance and mechanical robustness, making it promising for water treatment applications.

JOURNAL OF HAZARDOUS MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Reinforcing Poly(methyl methacrylate) with Bacterial Cellulose Nanofibers Chemically Modified with Methacryolyl Groups

Hiroyuki Kono et al.

Summary: In this study, nanofibrillated bacterial cellulose (NFBC) was successfully used as a nanofiller to improve the mechanical properties of poly(methyl methacrylate) (PMMA) while maintaining its high transparency, through chemical surface modification. The addition of only 0.10 wt% of NFBC increased the tensile strength and Young's modulus of the composite by factors of 1.6 and 1.8, respectively, without sacrificing the maximum elongation rate. Interaction involving the organic functional groups of the surface-modified NFBC was found to be crucial for reinforcing PMMA.

NANOMATERIALS (2022)

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Article Engineering, Chemical

Three-dimensional porous sodium alginate/gellan gum environmentally friendly aerogel: Preparation, characterization, adsorption, and kinetics studies

Kaiqiang Dong et al.

Summary: In this study, three-dimensional porous sodium alginate/gellan gum aerogels were prepared and used for the removal of methylene blue in wastewater. The addition of gellan gum improved the chemical resistance and adsorption capacity of the aerogels. Kinetic and isothermal models were used to describe the adsorption process of methylene blue. Thermodynamic analysis showed that the adsorption of methylene blue was spontaneous and exothermic. After multiple cycles of adsorption-desorption, the adsorption capacity of the aerogels only slightly decreased. This study demonstrates that SAG aerogels can be effectively used for the removal of methylene blue in wastewater.

CHEMICAL ENGINEERING RESEARCH & DESIGN (2022)

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Article Biochemistry & Molecular Biology

Efficiency of air-dried and freeze-dried alginate/xanthan beads in batch, recirculating and column adsorption processes

Stalin Kondaveeti et al.

Summary: This study synthesized alginate/xanthan blend beads and improved their porosity through freeze-drying. The freeze-dried beads showed better adsorption capacity for MB dye compared to air-dried beads. The vertical column system packed with freeze-dried beads exhibited higher adsorption efficiency and maintained a removal efficiency of 91% even after multiple adsorption-desorption cycles.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

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Article Polymer Science

Sodium alginate-cl-poly (N,N-dimethyl acryl amide-co-2-acrylamino-2-methyl-1-propane sulphonic acid/titanium dioxide nanocomposite hydrogel: An efficient dye-removing agent

Santu Kumar Samanta et al.

Summary: In this study, a novel nanocomposite hydrogel material was prepared by in situ crosslinked free radical polymerization technique, and its characterization was conducted. The experimental results demonstrate that the hydrogel exhibits excellent swelling properties and efficient dye adsorption capacity.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

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Article Chemistry, Physical

A highly efficient biomass-based adsorbent fabricated by graft copolymerization: Kinetics, isotherms, mechanism and coadsorption investigations for cationic dye and heavy metal

Peiyu Du et al.

Summary: In this study, a highly efficient biomass-based adsorbent named g-PS was prepared by graft copolymerization of peanut shell with methacrylic acid and N,N'-methylenebis(acrylamide). The g-PS exhibited fast removal rates and high maximum adsorption capacities for cationic dye and heavy metal pollutants. The coadsorption experiments demonstrated the effectiveness of g-PS in simultaneous removal of multiple pollutants, and g-PS maintained satisfactory removal performance even after repeated use.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Biochemistry & Molecular Biology

Adsorptive removal of crystal violet from wastewater using sodium alginate-gelatin-montmorillonite ternary composite microbeads

Kubra Akin et al.

Summary: This study investigated the performance of montmorillonite-filled SA-GEL-MMT ternary biocomposite microbeads in the adsorptive removal of crystal violet dye. The maximum removal of the dye was found to be 92.1% under specific conditions. The kinetic studies showed that the adsorption of the dye followed pseudo-second-order kinetics. The use of SA-GEL-MMT was found to be highly effective and reusable for wastewater treatment.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

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Article Polymer Science

Removal of anionic and cationic dyes using porous copolymer networks made from a Sonogashira cross-coupling reaction of diethynyl iron (II) clathrochelate with various arylamines

Suchetha Shetty et al.

Summary: Four copolymers (CLA1-4) containing alternating units of iron(II) clathrochelate and arylamine were synthesized and characterized. The copolymers showed superior thermal stability and porous nature, and exhibited efficient adsorption of organic dyes from aqueous solutions.

JOURNAL OF APPLIED POLYMER SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Green Synthesis of Hierarchically Porous Alginate/ZIF-8 Composite Beads for Water Treatment

Yingjie Chen et al.

Summary: The immobilization of powdery metal-organic-frameworks (MOFs) in a porous matrix is a promising approach for practical applications. In this study, porous alginate/ZIF-8 composite beads were synthesized using a green method, with ZIF-8 grown in alginate hydrogel beads and subsequently freeze-dried using only water as the reaction solvent. The hierarchically porous structure of the composite beads, consisting of macro- and meso-pores in the alginate matrix and micro-pores in the immobilized ZIF-8, enables enhanced adsorption properties. The adsorption performance of the composite beads towards water contaminants was evaluated using methylene blue as a probe molecule. The growth time of ZIF-8 was found to significantly influence the adsorption performance, with a maximum calculated adsorption capacity of 628.93 mg g(-1) at 298 K for ZIF-8@Alg30. The adsorption process followed the pseudo-second-order kinetic model and Langmuir isotherm model, and thermodynamic studies revealed that the process was spontaneous, endothermic, and irreversible.

CHEMNANOMAT (2022)

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Article Chemistry, Physical

Preparation of efficient adsorbent with dual adsorption function based on semi-coke: Adsorption properties and mechanisms

Feng Zhao et al.

Summary: In this study, solid waste oil shale semi-coke (SC) was used to prepare an adsorbent material called PSSC through alkali corrosion under hydrothermal conditions. The PSSC showed excellent adsorption performance for both anionic and cationic dyes, with significantly increased specific surface area compared to SC. The adsorption mechanisms were revealed and the modified adsorbent displayed different capturing abilities for different dyes with changing contact temperature.

JOURNAL OF COLLOID AND INTERFACE SCIENCE (2022)

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Article Chemistry, Multidisciplinary

Efficient Adsorption of Methylene Blue in Aqueous Solution by Acid-modified Sodium Alginate

Bing Chen et al.

Summary: In this study, acid-modified sodium alginate (AMSA) was synthesized using a simple acidification method and its synthesis was confirmed. AMSA showed a high adsorption capacity for methylene blue (MB) in water and a fast adsorption rate. Electrostatic interaction and hydrogen bonding, pore-filling and chemisorption were considered as the main adsorption mechanisms.

CHEMISTRYSELECT (2022)

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Article Chemistry, Physical

Preparation and characterization of magnetic sodium alginate-modified zeolite for the efficient removal of methylene blue

Fujie Liu et al.

Summary: A magnetic sodium alginate-modified zeolite composite was prepared and successfully utilized for the removal of methylene blue from wastewater. The adsorption of MB on the composite surface mainly relied on electrostatic attraction. The study demonstrated the composite's good regeneration performance, making it a promising adsorbent for cationic dyes removal.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2021)

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Article Biochemistry & Molecular Biology

Adsorption of methylene blue on sodium alginate-flax seed ash beads: Isotherm, kinetic and thermodynamic studies

Birol Isik et al.

Summary: In this study, a novel composite material prepared by SA and FS was used for the adsorptive removal of methylene blue (MB) from wastewater. The study revealed that under specific conditions, the SA-FS composite beads exhibited the best adsorption performance for MB with a high adsorption capacity.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2021)

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Article Biochemistry & Molecular Biology

Adsorption of methylene blue dye on sodium alginate/polypyrrole nanotube composites

Ezgi Nur Heybet et al.

Summary: Nanomaterials, specifically polypyrrole nanotube incorporated sodium alginate, showed promising results in the adsorptive removal of methylene blue dye from aqueous solution. The Langmuir isotherm model was found to be the most suitable in describing the adsorption process, with a maximum adsorption capacity of 666.7 mg/g at pH=7 and 25 degrees C. Additionally, the adsorption followed the pseudo-second-order kinetic model and occurred exothermically and spontaneously based on the thermodynamic parameters.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2021)

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Article Materials Science, Multidisciplinary

Preparation and Characterization of Some Sol-Gel Modified Silica Coatings Deposited on Polyvinyl Chloride (PVC) Substrates

Violeta Purcar et al.

Summary: Transparent and antireflective silica coatings were prepared by sol-gel route, showing a 10% reduction in reflectance compared to uncoated PVC substrates, and have potential applications in electronic and optical devices.

COATINGS (2021)

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Article Materials Science, Multidisciplinary

MXene/sodium alginate gel beads for adsorption of methylene blue

Zhi-Hao Zhang et al.

Summary: Ti3C2Tx/SA beads were prepared for enhanced adsorption of methylene blue, showing efficient adsorption and superior reusability. The optimized Ti3C2Tx/SA-30% exhibited a maximum adsorption capacity of 92.17 mg/g at pH 7 and 298 K, maintaining an adsorption efficiency of 81.36% after three cycles. The adsorption process followed pseudo-second-order kinetics and Langmuir isotherm model.

MATERIALS CHEMISTRY AND PHYSICS (2021)

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Article Polymer Science

Fabrication of semi-interpenetrated PVA/PAMPS hydrogel as a reusable adsorbent for cationic methylene blue dye: isotherms, kinetics and thermodynamics studies

Ahmed Mohamed Omer et al.

Summary: A reusable adsorbent based on semi-interpenetrated hydrogel made of poly(vinyl alcohol) and poly(2-acrylamido-2-methylpropane sulfonic acid) was developed for the adsorptive removal of cationic methylene blue dye. The adsorbent showed efficient removal of MB dye under various conditions and exhibited good reusability.

POLYMER BULLETIN (2021)

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Article Biochemistry & Molecular Biology

Fe3O4-alginate nanocomposite hydrogel beads material: One-pot preparation, release kinetics and antibacterial activity

Abdelkrim Soumia et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

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Article Biochemistry & Molecular Biology

Graphite modified sodium alginate hydrogel composite for efficient removal of malachite green dye

Ankit Verma et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

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Article Biochemistry & Molecular Biology

Methylene blue adsorption on magnetic alginate/rice husk bio-composite

Erol Alver et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

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Efficient removal of dyes using carboxymethyl cellulose/alginate/polyvinyl alcohol/rice husk composite: Adsorption/desorption, kinetics and recycling studies

Haq N. Bhatti et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

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Preparation of Highly Porous Metal-Organic Framework Beads for Metal Extraction from Liquid Streams

Shuliang Yang et al.

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY (2020)

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Simultaneous shaping and confinement of metal-organic polyhedra in alginate-SiO2 spheres

Zhuxiu Zhang et al.

CHEMICAL COMMUNICATIONS (2020)

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Review Chemistry, Physical

Review on heterogeneous photocatalytic disinfection of waterborne, airborne, and foodborne viruses: Can we win against pathogenic viruses?

Aziz Habibi-Yangjeh et al.

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Removal of heavy metals from water sources in the developing world using low-cost materials: A review

Lesley Joseph et al.

CHEMOSPHERE (2019)

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Progress on the Photocatalytic Reduction Removal of Chromium Contamination

Zengying Zhao et al.

CHEMICAL RECORD (2019)

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Engineering sodium alginate-based cross-linked beads with high removal ability of toxic metal ions and cationic

Zi-jian Shao et al.

CARBOHYDRATE POLYMERS (2018)

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Review Engineering, Environmental

Removal of contaminants of emerging concern by membranes in water and wastewater: A review

Sewoon Kim et al.

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Removal of emerging contaminants from the environment by adsorption

Carmalin A. Sophia et al.

ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY (2018)

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Porous synthetic hectorite clay-alginate composite beads for effective adsorption of methylene blue dye from aqueous solution

Radheshyam R. Pawar et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2018)

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Article Biochemistry & Molecular Biology

High surface area mesoporous activated carbon-alginate beads for efficient removal of methylene blue

Asma Nasrullah et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2018)

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Flower-like silicon dioxide/polymer composite particles synthesized by dispersion polymerization route

Isabela M. F. Lopes et al.

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New generation nano-adsorbents for the removal of emerging contaminants in water

Al Arsh Basheer

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Comparison of heavy metal removals from aqueous solutions by chemical precipitation and characteristics of precipitates

Quanyuan Chen et al.

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Production and characterization of a novel hierarchical porous silica adsorbent for removal of methylene blue dye from wastewaters

Kanokwan Jantawatchai et al.

CHEMICAL ENGINEERING COMMUNICATIONS (2017)

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Synthesis of Magnetic Microspheres with Sodium Alginate and Activated Carbon for Removal of Methylene Blue

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MATERIALS (2017)

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Flexible core-shell/bead-like alginate@PEI with exceptional adsorption capacity, recycling performance toward batch and column sorption of Cr(VI)

Yongzhu Yan et al.

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Alginate Hydrogel: A Shapeable and Versatile Platform for in Situ Preparation of Metal-Organic Framework-Polymer Composites

He Zhu et al.

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Development of a sodium alginate-based organic/inorganic superabsorbent composite hydrogel for adsorption of methylene blue

Sourbh Thakur et al.

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Role of nanomaterials in water treatment applications: A review

Chella Santhosh et al.

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Bimodal porous silica microspheres decorated with polydopamine nano-particles for the adsorption of methylene blue in fixed-bed columns

Taher Ataei-Germi et al.

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Synthesis and characterization of gel beads based on ethyleneglycol dimethacrylate and 2-acrylamido-2-methyl-1-propane sulfonic acid: Removal of Fe(II), Cu(II), Zn(II), and Ni(II) from metal finishing wastewater

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Post-crosslinking towards stimuli-responsive sodium alginate beads for the removal of dye and heavy metals

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Binding of Methylene Blue to Polyelectrolytes Containing Sulfonate Groups

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Adsorption of 2-acrylamido-2-methyl-1-propanesulfonic acid (AMPS) and related compounds onto montmorillonite clay

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Efficient conversion of CO2 to methanol catalyzed by three dehydrogenases co-encapsulated in an alginate-silica (ALG-SiO2) hybrid gel

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Removal of synthetic dyes from wastewaters:: a review

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Engineering sodium alginate-SiO2 composite beads for efficient removal of methylene blue from water

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