Efficient Removal of Cationic Dye Using Rice Straw‐Derived Cellulose Nanocrystal‐Based Adsorptive Nanocomposite Membranes DOI
Manas K. Mandal,

A. Arathi,

Roop Singh Lodhi

et al.

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Abstract This work demonstrates the development of adsorptive nanocomposite membranes for efficient removal cationic dye from water. The bio‐based membrane is prepared using polyvinyl alcohol (PVA) and polydopamine (PDA)‐modified cellulose nanocrystals (PDA@CNCs) supported on a Whatman filter paper via vacuum filtration. structural characterizations, surface morphology, effects different operational parameters methylene blue (MB) adsorption by PVA/PDA@CNC are evaluated. synthesized with PVA to PDA@CNC feed ratio at 50/50 (PVA/PDA@CNC‐50/50) achieved 98.2% efficiency 1.18 mg g −1 capacity in 48 h. under optimized conditions. study shaking 150 RPM speed further enhanced performance, exhibiting 93.2% within 8 h contact time. Regeneration studies demonstrated that = maintained over 95% even after five adsorption‐desorption cycles. pseudo second‐order model best described kinetics process membranes. experimental data also fitted well Freundlich isotherm predicting adsorbent has multilayer sites its heterogeneous surface. shows good performance Janus Green B, thus displaying versatility adsorbing dyes

Language: Английский

Carbon based nanocomposites, surface functionalization as a promising material for VOCs (volatile organic compounds) treatment DOI

Farooq Nawaz,

Muhammad Ali, Shakeel Ahmad

et al.

Chemosphere, Journal Year: 2024, Volume and Issue: 364, P. 143014 - 143014

Published: Aug. 8, 2024

Language: Английский

Citations

16
Graphitic carbon nitride composites as advanced versatile materials for adsorption and photocatalytic degradation of emerging pollutants from wastewater DOI

Fungbili Basumatary,

Angita Sarkar,

Nituraj Mushahary

et al.

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

Citations

7
Harnessing the power of heterogeneous photocatalytic process for sustainable pharmaceutical contaminant remediation in water environments DOI Creative Commons
Eliasu Issaka, Eric Danso‐Boateng,

Josephine Baffoe

et al.

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 319, P. 100574 - 100574

Published: July 1, 2024

Pharmaceutical pollutants in wastewater can be effectively degraded by heterogeneous photocatalytic processes (HPP); under light irradiation, these methods use semiconductor photocatalysts to produce reactive oxygen species (ROS), which oxidize and mineralize organic (OPs) into innocuous byproducts. Reactant transport the photocatalyst surface, reactant adsorption, charge carrier formation separation, redox reactions, product desorption are all part of mechanisms. This review article analyzes compares various approaches used prepare photocatalysts. The composition, morphology, crystallinity, production scale, influence synthesis technique selection. While hydrothermal, microwave-assisted, sonochemical, mechanochemical provide greater variety synthesising diverse with varying compositions, morphologies, surface characteristics, flame hydrolysis is appropriate for large-scale TiO2 Because it regulates photocatalyst's charge, electrolytic solution's pH significant processes. Within a certain range, an increase temperature generally results continuous breakdown efficacy; beyond that, rate decomposition decreases. These findings besides giving researchers broad overview current status HP process we believe will also inform its future applications advancements.

Language: Английский

Citations

4
Scaffolds of Chitosan-metallic hybrids as antimicrobial wound dressing DOI
Shengyu Zhang, Muhammad Ali,

Farooq Nawaz

et al.

Journal of Molecular Liquids, Journal Year: 2024, Volume and Issue: unknown, P. 126541 - 126541

Published: Nov. 1, 2024

Language: Английский

Citations

4
Recent Progress in g-C3N4-Based Photocatalysts for Organic Pollutant Degradation: Strategies to Improve Photocatalytic Activity DOI Open Access
Yang Ruan, Yuanan Hu, Hefa Cheng

et al.

Catalysts, Journal Year: 2025, Volume and Issue: 15(2), P. 148 - 148

Published: Feb. 4, 2025

With unique photochemical properties, graphitic carbon nitride (g-C3N4) has gained significant attention for application in photocatalytic degradation of a wide range organic pollutants. However, its performance is limited by the rapid electron–hole recombination and relatively weak redox capability. Substantial progress been made preparation g-C3N4-based photocatalysts with enhanced activity. This review summarizes recent advances strategies to improve activity their Morphology control, doping, functionalization, metal deposition, dye sensitization, defect engineering, construction heterojunctions can be used g-C3N4 through promoting charge carrier separation, reducing bandgap, suppressing recombination. Furthermore, oxidants, such as hydrogen peroxide persulfate, coupled enhance generation reactive oxygen species boost Precise control over structure during synthesis process remains challenge, further improvements are required photocatalyst stability mineralization rates More research development effort needed address existing challenges, refine design activity, promote practical pollutant degradation.

Language: Английский

Citations

0
Polythiophene/Ti3C2TX MXene Composites for Effective Removal of Diverse Organic Dyes via Complementary Activity of Adsorption and Photodegradation DOI Creative Commons

Younghwan Bae,

Seongin Hong, Jin‐Seo Noh

et al.

Molecules, Journal Year: 2025, Volume and Issue: 30(6), P. 1393 - 1393

Published: March 20, 2025

This study presents an effective method to remove organic dyes from wastewater, using a composite of few-layered porous (FLP) Ti3C2Tx MXene and polythiophene (PTh) nanospheres. The FLP MXene, which was pre-synthesized by series intercalation, heat-induced TiO2 formation, its selective etching, combined with PTh nanospheres via simple solution method. effectively removed various dyes, but efficiency altered depending on the type dye. Particularly, removal methylene blue reached 91.3% 97.8% after irradiation for 10 min 1 h, respectively. high dye attributed large surface area (32.01 m2/g) composite, strong electrostatic interaction between molecules, active photodegradation process. could facilitate adsorption while photocatalytic activity further enhance under light. These results are indicative that PTh/FLP may be promising material environmental remediation through synergistic processes photocatalysis.

Language: Английский

Citations

0
Efficient Removal of Cationic Dye Using Rice Straw‐Derived Cellulose Nanocrystal‐Based Adsorptive Nanocomposite Membranes DOI
Manas K. Mandal,

A. Arathi,

Roop Singh Lodhi

et al.

Macromolecular Chemistry and Physics, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Abstract This work demonstrates the development of adsorptive nanocomposite membranes for efficient removal cationic dye from water. The bio‐based membrane is prepared using polyvinyl alcohol (PVA) and polydopamine (PDA)‐modified cellulose nanocrystals (PDA@CNCs) supported on a Whatman filter paper via vacuum filtration. structural characterizations, surface morphology, effects different operational parameters methylene blue (MB) adsorption by PVA/PDA@CNC are evaluated. synthesized with PVA to PDA@CNC feed ratio at 50/50 (PVA/PDA@CNC‐50/50) achieved 98.2% efficiency 1.18 mg g −1 capacity in 48 h. under optimized conditions. study shaking 150 RPM speed further enhanced performance, exhibiting 93.2% within 8 h contact time. Regeneration studies demonstrated that = maintained over 95% even after five adsorption‐desorption cycles. pseudo second‐order model best described kinetics process membranes. experimental data also fitted well Freundlich isotherm predicting adsorbent has multilayer sites its heterogeneous surface. shows good performance Janus Green B, thus displaying versatility adsorbing dyes

Language: Английский

Citations

0