Sulfonated Cellulose: A Strategy for Effective Methylene Blue Sequestration

ACS Omega, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

This study investigates the sulfonation modification of cellulose for removal methylene blue (MB) from aqueous solutions. The prepared biosorbent was characterized, and its sorption capacity, kinetics, thermodynamics were systematically evaluated. Fourier-transform infrared (FTIR) spectroscopy analyzed structural modifications, while scanning electron microscopy (SEM) examined surface properties. optimal sorbent dosage determined as 0.05 g. MB efficiency increased 11% at pH 1 to 70% 2, reaching 99% within range 3 7. Kinetic studies revealed rapid sorption, achieving min. Among various isotherm models, Langmuir model provided best fit (R 2 = 0.9989), indicating monolayer with a maximum capacity 37.65 mg/g. Thermodynamic analysis showed negative ΔG° values, confirming spontaneous process, an enthalpy change (ΔH°) -33.5 kJ/mol indicated exothermic behavior. entropy (ΔS°) -82.6 J mol-1·K-1 suggested decreased disorder during sorption. Regeneration demonstrated that 0.2 M HCl combined ethanol achieved highest desorption efficiency, after three cycles, remained above 99%. presence -SO3 - groups played crucial role in via ion exchange may also contribute through hydrogen bonding, thereby enhancing These findings highlight sulfonated efficient regenerable removal, offering valuable insights into mechanisms.

Language: Английский

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Efficient removal of Janus green and aniline blue dyes from aqueous medium via tryptophan functionalized Gellan gum-cl-β-cyclodextrin/CeO2 nanocomposite

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142399 - 142399

Published: March 1, 2025

Language: Английский

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Recent trends in the Plant based Metal Oxide Nanoparticles and their Application in Biomedical and Waste Water Remediation - A Review

Hybrid Advances, Journal Year: 2025, Volume and Issue: unknown, P. 100475 - 100475

Published: April 1, 2025

Language: Английский

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Influence of interaction relations between La, Ce, Pr, Nd on the solubility of binary rare earth sulphates in H2SO4-H2O solution

Journal of Industrial and Engineering Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Synthesis of lightweight porous fly ash geopolymer monoliths for phosphorus removal from aqueous media: Kinetics, safety, and economic feasibility

Journal of Industrial and Engineering Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Cerium oxide nanoparticles, physical and chemical properties, applications and toxicological implications: A review

Results in Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 102302 - 102302

Published: April 1, 2025

Language: Английский

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Analyzing and reusing industrial wastewater sludge in cement production: Environmental and economic implications

Results in Chemistry, Journal Year: 2025, Volume and Issue: unknown, P. 102299 - 102299

Published: May 1, 2025

Language: Английский

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Sustainable green synthesis of metallic nanoparticle using plants and microorganisms: A review of biosynthesis methods, mechanisms, toxicity, and applications

Journal of environmental chemical engineering, Journal Year: 2025, Volume and Issue: unknown, P. 116921 - 116921

Published: May 1, 2025

Language: Английский

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Non-conventional strategies for pretreatment of lignocellulosic biomass for production of value-added products: a sustainable and circular economy approach

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

Language: Английский

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Adsorptive separation of Acid Red 33 by groundnut shell–based activated carbon

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Language: Английский

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