4.7 Article

Chitosan-based composite hydrogel with a rigid-in-flexible network structure for pH-universal ultra-efficient removal of dye

Related references

Note: Only part of the references are listed.
Article Biochemistry & Molecular Biology

Core-shell alginate beads as green reactor to synthesize grafted composite beads to efficiently boost single/co-adsorption of dyes and Pb(II)

Xue Wang et al.

Summary: In this study, a series of sodium alginate grafted polymer composite beads were synthesized by a solution free-radical graft polymerization reaction. These composite beads showed excellent adsorption capacity and easy separability for dyes and heavy metal ions in water.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

Article Engineering, Chemical

Simultaneous adsorption of cobalt ions, azo dye, and imidacloprid pesticide on the magnetic chitosan/activated carbon@UiO-66 bio-nanocomposite: Optimization, mechanisms, regeneration, and application

Hamed Motaghi et al.

Summary: In this study, a magnetic chitosan/activated carbon bio-nanocomposite was modified with UiO-66 MOFs and used as an adsorbent for the simultaneous removal of cobalt (II) ions, malachite green dye, and imidacloprid pesticide from water. The adsorption process was optimized using response surface methodology, and the adsorption capacity and kinetics were evaluated. The results showed that the modified bio-nanocomposite had excellent adsorption performance and could be reused multiple times.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Biochemistry & Molecular Biology

Lightweight and anisotropic cellulose nanofibril/rectorite composite sponges for efficient dye adsorption and selective separation

Yiming Chen et al.

Summary: Constructing lightweight and porous adsorbents for effective dye removal is crucial in sewage treatment. This study fabricated anisotropic cellulose nanofibril (CNF) composite sponges assisted by rectorites through directional freeze-drying. The resulting composite sponge exhibited superior adsorption capacity and removal efficiency, and showed selective adsorption ability for different dyes.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

Article Materials Science, Multidisciplinary

Kinetic and thermodynamic study on adsorption of lead(II) ions in water over dithizone-immobilized coal bottom ash

Bonusa Nabila Huda et al.

Summary: This study investigated the adsorption of Pb(II) using modified activated coal bottom ash. The results showed that the Langmuir isotherm model was the best fit, and the immobilization of dithizone improved the adsorption rate. Thermodynamic parameters were also calculated to understand the adsorption process.

MATERIALS CHEMISTRY AND PHYSICS (2022)

Article Biochemistry & Molecular Biology

Synthesis of a new magnetic Sulfacetamide-Ethylacetoacetate hydrazone-chitosan Schiff-base for Cr(VI) removal

Abdelazeem S. Eltaweil et al.

Summary: In this study, a novel magnetic organic-inorganic composite was fabricated for the removal of Cr(VI). The composite showed excellent adsorption properties and could be easily recycled for multiple cycles.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

Article Biochemistry & Molecular Biology

Chitosan-based dual network composite hydrogel for efficient adsorption of methylene blue dye

Xiaoxiao Wan et al.

Summary: In this study, a dual-network, composite hydrogel adsorbent was prepared by introducing chitosan cross-linked polyvinylamine into the N,N '-methylenebisacrylamide cross-linked polyacrylic acid network. The hydrogel exhibited excellent mechanical properties, good reusability, and large adsorption capacity, making it highly efficient for the removal of methylene blue dye from textile industry wastewater.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

Article Biochemistry & Molecular Biology

Gellan gum/bacterial cellulose hydrogel crosslinked with citric acid as an eco-friendly green adsorbent for safranin and crystal violet dye removal

Hau Trung Nguyen et al.

Summary: In this study, ex-situ crosslinked gellan gum (GG)/bacterial cellulose (BC) hydrogels were examined as effective adsorbents for the removal of safranin and crystal violet dye pollutants. The hydrogels showed higher efficiency in the removal of safranin dye and maintained good removal efficiency even after multiple adsorption-desorption cycles.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

Article Biochemistry & Molecular Biology

Adsorption of Pb(II) from water by treatment with an O-hydroxyphenyl thiourea-modified chitosan

Xiya Yang et al.

Summary: An O-hydroxyphenyl thiourea-modified chitosan (OTCS) with excellent Pb(II) adsorption performance and selectivity was prepared as an adsorbent. The structure and morphology of the adsorbent were characterized, and it was found that OTCS exhibited high adsorption capacity for Pb(II) and followed pseudo-second-order kinetics and Langmuir isotherm model. The results suggest that OTCS has great potential for application.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2022)

Article Engineering, Chemical

Floating-separation adsorbent for methylene blue and Pb(II) removal: Structure construction and adsorption mechanism

Qian Tang et al.

Summary: The inadequate solid-liquid separation and adsorption capacity of current wastewater treatment adsorbents are the main challenges in purifying wastewater containing dyes and heavy metals. In this study, a novel floating separation adsorbent with a polymeric chain structure was fabricated using an electrophilic addition post-grafting strategy. The adsorbent showed satisfactory adsorption for methylene blue and lead ion, as well as efficient flotation. The study provided an efficient strategy for the design and modification of floating separation adsorbents, with positive implications for the purification of dyes and heavy metals wastewater.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Environmental Sciences

Highly efficient poly(acrylic acid-co-aniline) grafted itaconic acid hydrogel: Application in water retention and adsorption of rhodamine B dye for a sustainable environment

Sourbh Thakur et al.

Summary: In this study, a smart hydrogel was synthesized using a free radical co-polymerization approach and characterized. The hydrogel showed high efficiency in removing dye from water and had high swelling and water retention abilities, making it suitable for improving soil moisture maintenance limits and irrigation systems.

CHEMOSPHERE (2022)

Article Engineering, Chemical

Ammonium removal and recovery from effluent of AnMBR treating real domestic wastewater using polymeric hydrogel

Meibo He et al.

Summary: This study proposes the use of poly (acrylic acid) hydrogel as a post-treatment method for AnMBRs to remove and recover NH4+-N, thus promoting the circular economy and the adoption of AnMBR technology. The results show that PAA hydrogels have excellent adsorption capacities for NH4+-N and can be regenerated multiple times with minimal decline in adsorption capacity. The use of a strategic recirculation of HCl solution as an eluent also shows promise in concentrating NH4+-N as resources. Economically, the PAA hydrogel-based adsorption/desorption process coupled with eluent recirculation is cost-effective for removing and recovering NH4+-N from AnMBR effluent. Overall, this study has the potential to expand the application of AnMBRs and contribute to innovations in sustainable wastewater treatment.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Engineering, Chemical

Cost-effective and eco-friendly superadsorbent derived from natural calcium-rich clay for ultra-efficient phosphate removal in diverse waters

Lei Han et al.

Summary: A novel phosphate adsorbent with excellent adsorption performance and low cost has been synthesized in this study, which can adapt to various environments and has high practical value.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

Article Multidisciplinary Sciences

Efficient removal of noxious methylene blue and crystal violet dyes at neutral conditions by reusable montmorillonite/ NiFe2O4@amine-functionalized chitosan composite

Hassanien Gomaa et al.

Summary: This study fabricated a montmorillonite/magnetic -NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as a green adsorbent for the removal of cationic methylene blue and crystal violet dyes from wastewater. The MMT-mAmCs composite exhibited high negative charges over a wide pH range, making it ideal for adsorbing cationic contaminants. The optimum pH for adsorption was found to be 7, and the composite displayed ferromagnetic behavior for easy separation. The maximum adsorption capacities of methylene blue and crystal violet were 137 and 118 mg/g, respectively, and the composite showed excellent reusability with over 87% removal efficiency after ten cycles.

SCIENTIFIC REPORTS (2022)

Article Multidisciplinary Sciences

Efficient removal of noxious methylene blue and crystal violet dyes at neutral conditions by reusable montmorillonite/NiFe2O4@amine-functionalized chitosan composite

Hassanien Gomaa et al.

Summary: This study aimed to develop a montmorillonite/magnetic NiFe2O4@amine-functionalized chitosan (MMT-mAmCs) composite as an adsorbent for the removal of cationic dyes from wastewater. The composite material exhibited high negative charges and ferromagnetic behavior, making it suitable for adsorbing the cationic contaminants. It showed promising adsorption capacity for methylene blue and crystal violet, and maintained satisfactory adsorption characteristics even after repeated use. Additionally, the MMT-mAmCs composite efficiently adsorbed dyes from real water samples, indicating its potential as a reusable adsorbent for cationic pollutants in aquatic environments.

SCIENTIFIC REPORTS (2022)

Article Engineering, Environmental

Active MnO2/biochar composite for efficient As(III) removal: Insight into the mechanisms of redox transformation and adsorption

Dinh Viet Cuong et al.

Summary: An active MnO2/rice husk biochar composite (MBC) with improved porous structure was prepared for enhanced removal of As(III) in groundwater. MBC exhibited a high removal capacity for As(III) and a powerful transformation capability of As(III), with pH influencing its removal efficiency. MnO2 and the BC substrate played important roles in the effective removal of arsenic by MBC.

WATER RESEARCH (2021)

Article Chemistry, Applied

HKUST-1 modified ultrastability cellulose/chitosan composite aerogel for highly efficient removal of methylene blue

Qun Liu et al.

Summary: The novel composite aerogel HKUST-1/CCSA, prepared through covalent cross-linking, vacuum freeze-drying, and solvothermal methods, exhibited high adsorption capacity and good recyclability, making it suitable for applications in pollutant treatment fields.

CARBOHYDRATE POLYMERS (2021)

Article Engineering, Environmental

Preparation of fibrous chitosan/sodium alginate composite foams for the adsorption of cationic and anionic dyes

Xiaolin Zhao et al.

Summary: Fibrous chitosan/sodium alginate composite foams prepared by lyophilization with ternary solvents exhibit suitable morphology for dye adsorption, showing high adsorption capacities for Acid Black-172 and Methylene Blue. The adsorption process follows pseudo-second-order kinetics and Langmuir model, indicating it is spontaneous. The composite foams have potential to effectively remove both cationic and anionic dyes from wastewater.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Chemistry, Multidisciplinary

Zero Valent Iron Nanoparticle-Loaded Nanobentonite Intercalated Carboxymethyl Chitosan for Efficient Removal of Both Anionic and Cationic Dyes

Abdelazeem S. Eltaweil et al.

Summary: In this study, a zero valent iron-loaded nano-bentonite intercalated carboxymethyl chitosan (nZVI@nBent-CMC) composite was successfully fabricated and characterized. The composite exhibited excellent removal efficiency for both CR and CV dyes, with maximum uptake capacities of 884.95 and 505.05 mg/g, respectively. The adsorption process of both dyes fit well with the Langmuir isotherm model and pseudo-second order kinetic model.

ACS OMEGA (2021)

Article Chemistry, Applied

Preparation of a novel citric acid-crosslinked Zn-MOF/chitosan composite and application in adsorption of chromium(VI) and methyl orange from aqueous solution

Chuanwen Niu et al.

Summary: A novel citrate-crosslinked Zn-MOF/chitosan composite with high adsorption capacity for Cr(VI) and MO was successfully prepared, and its adsorption mechanisms were mainly explained by electrostatic attraction, cation-pi interaction, n-pi and pi-pi interactions, electrostatic attraction, and hydrogen bonding.

CARBOHYDRATE POLYMERS (2021)

Review Environmental Sciences

Research progress of adsorption and removal of heavy metals by chitosan and its derivatives: A review

Yuzhe Zhang et al.

Summary: Chitosan has great potential as an adsorbent for pollutants, but its application is limited by factors such as pH sensitivity, low thermal stability, and weak mechanical strength. Modifying the functional groups of chitosan can improve its performance.

CHEMOSPHERE (2021)

Article Engineering, Environmental

Recyclable polyurethane foam loaded with carboxymethyl chitosan for adsorption of methylene blue

Longfang Ren et al.

Summary: The novel composite foam CMCTS-PUF-s showed excellent adsorption efficiency for methylene blue, with a high adsorption capacity of 118.2 mg/g and a removal rate of 97.1%. Even after recycling five times, it still maintained a removal rate of 83.2%, demonstrating its excellent reusability. Additionally, the CMCTS-PUF-s exhibited increased elasticity and tensile strength compared to PUF, making it a promising candidate for future treatment of dye wastewater.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Review Engineering, Environmental

Assessing the radiation-induced graft polymeric adsorbents with emphasis on heavy metals removing: A systematic literature review

Rezvan Torkaman et al.

Summary: Wastewater treatment is a global issue and adsorption is the main method for removing heavy metals. Adsorption with novel materials under different conditions is gaining popularity.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

Article Chemistry, Applied

3D porous bioadsorbents based on chitosan/alginate/cellulose nanofibers as efficient and recyclable adsorbents of anionic dye

Amir Mokhtari et al.

Summary: Porous ionically crosslinked biofoams were prepared as efficient adsorbents for Eriochrome black-T dye, exhibiting outstanding adsorption performance and stability at various pH conditions. The bioadsorbents presented a 3D interconnected porous structure, facilitating dye adsorption, and demonstrated repeated dye removal capability after multiple adsorption cycles.

CARBOHYDRATE POLYMERS (2021)

Article Chemistry, Applied

Synthesis, characterization, and selective dye adsorption by pH- and ion-sensitive polyelectrolyte galactomannan-based hydrogels

Pengfei Li et al.

Summary: The three novel polyelectrolyte galactomannan hydrogels fabricated in the study showed excellent adsorption properties for the removal of Congo Red and Methylene Blue, with adsorption mechanism dominated by electrostatic interactions and hydrogen bonding. The physically crosslinked PGHs exhibited pH and ion-sensitivity, and their structure could be disrupted by artificial urine.

CARBOHYDRATE POLYMERS (2021)

Article Engineering, Environmental

A high-efficiency and plane-enhanced chitosan film for cefotaxime adsorption compared with chitosan particles in water

Zehao Li et al.

Summary: This study investigated the adsorption of cefotaxime (CTX) in water by chitosan particles and films, revealing that the film had a stronger adsorption capacity and was an efficient and reusable adsorbent for antibiotics elimination in water. Various experimental conditions and analysis factors influenced the CTX removal, with the mechanism of adsorption mainly based on plane strengthening effect, electrostatic attraction, nucleophilic addition reaction, and hydrogen bonding.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Removal of Cu (ll) from industrial wastewater using poly (acrylamide-co-2-acrylamide-2-methyl propane sulfonic acid)/graphene oxide/sodium alginate hydrogel: Isotherm, kinetics, and optimization study

Mohammad Pishnamazi et al.

Summary: The research synthesized a graphene oxide/poly (acrylamide-2-acrylamide-methyl-propanesulfonic acid)/sodium alginate hydrogel and studied its adsorption performance on Cu(II). The synthesized hydrogel showed significant removal of Cu(II) from industrial wastewater and demonstrated excellent reusability.

JOURNAL OF WATER PROCESS ENGINEERING (2021)

Article Biochemistry & Molecular Biology

Facile preparation of lignosulfonate/N-methylaniline composite and its application in efficient removal of Cr(VI) from aqueous solutions

Haifeng Zhou et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

Article Engineering, Environmental

Enhanced removal of ethidium bromide (EtBr) from aqueous solution using rectorite

Zhaohui Li et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

Article Biochemistry & Molecular Biology

Rapid and solvent-free synthesis of pH-responsive graft-copolymers based on wheat starch and their properties as potential ammonium sorbents

Samira Siyamak et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2020)

Review Engineering, Environmental

Adsorption kinetic models: Physical meanings, applications, and solving methods

Jianlong Wang et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

Article Biochemistry & Molecular Biology

Synthesis of superabsorbent polymers based on chitosan derivative graft acrylic acid-co-acrylamide and its property testing

Shixin Fang et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2019)

Article Biochemistry & Molecular Biology

Chitosan cross-linked graphene oxide/lignosulfonate composite aerogel for enhanced adsorption of methylene blue in water

Mingfang Yan et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2019)

Article Materials Science, Multidisciplinary

Functionalized magnetic biopolymeric graphene oxide with outstanding performance in water purification

Amit Kumar Sarkar et al.

NPG ASIA MATERIALS (2019)

Article Thermodynamics

Thermal decomposition profile of chitosan microparticles produced with Schinopsis brasiliensis Engler extract

Pedro H. Sette-de-Souza et al.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2018)

Article Engineering, Environmental

Simple formation of chitosan tablet with self-supporting blocks: Fe3+ - mediated supramolecular coordination

Jinxin Liu et al.

CHEMICAL ENGINEERING JOURNAL (2018)

Article Biochemistry & Molecular Biology

Poly(2-acrylamido-2-methylpropane sulfonic acid) grafted magnetic chitosan microspheres: Preparation, characterization and dye adsorption

Bincheng Xu et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2018)

Article Biochemistry & Molecular Biology

Preparation of composite aerogels based on sodium alginate, and its application in removal of Pb2+and Cu2+from water

Yaoge Huang et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2018)

Article Biochemistry & Molecular Biology

Synthesis, characterization and antimicrobial activity of Schiff bases modified chitosan-graft-poly(acrylonitrile)

Magdy W. Sabaa et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2018)

Article Chemistry, Physical

An explicit multicomponent adsorption isotherm model: accounting for the size-effect for components with Langmuir adsorption behavior

Tom R. C. van Assche et al.

ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY (2018)

Article Chemistry, Physical

A lignosulfonate-modified graphene hydrogel with ultrahigh adsorption capacity for Pb(II) removal

Fengfeng Li et al.

JOURNAL OF MATERIALS CHEMISTRY A (2016)

Article Chemistry, Physical

Porous 3D network rectorite/chitosan gels: Preparation and adsorption properties

Yajing Lu et al.

APPLIED CLAY SCIENCE (2015)

Article Chemistry, Applied

Modified chitosan for the collection of reactive blue 4, arsenic and mercury from aqueous media

V. Dhanapal et al.

CARBOHYDRATE POLYMERS (2015)

Article Engineering, Environmental

Wrapping carbon nanotubes with poly (sodium 4-styrenesulfonate) for enhanced adsorption of methylene blue and its mechanism

Zhao-yang Zhang et al.

CHEMICAL ENGINEERING JOURNAL (2014)

Article Biochemistry & Molecular Biology

Adsorption property of Rhodamine 6G onto chitosan-g-(N-vinyl pyrrolidone)/montmorillonite composite

Ageetha Vanamudan et al.

INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES (2014)

Article Chemistry, Multidisciplinary

Heavy metal ions retention by bi-functionalized lignin: Synthesis, applications, and adsorption mechanisms

Yuanyuan Ge et al.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY (2014)

Article Engineering, Electrical & Electronic

Preparation of ZnO nanoparticles using electrodeposition and co-precipitation techniques for dye-sensitized solar cells applications

E. M. Elsayed et al.

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS (2014)

Review Chemistry, Applied

Adsorption of dyes and heavy metal ions by chitosan composites: A review

W. S. Wan Ngah et al.

CARBOHYDRATE POLYMERS (2011)

Article Chemistry, Physical

Coupling of molecular orientation with the hydrogen-bond dimensions and H-sites in carboxylic acids

Malgorzata Ratajczak-Sitarz et al.

JOURNAL OF MOLECULAR STRUCTURE (2011)

Article Engineering, Chemical

Treatment of dairy industry wastewater by reverse osmosis for water reuse

Mickael Vourch et al.

DESALINATION (2008)

Article Engineering, Chemical

Treatment of strong acid dye wastewater by solvent extraction

HS Hu et al.

SEPARATION AND PURIFICATION TECHNOLOGY (2005)