Agricultural Solid Wastes Based Adsorbent Materials in the Remediation of Heavy Metal Ions from Water and Wastewater by Adsorption: A Review

Molecules, Journal Year: 2023, Volume and Issue: 28(14), P. 5575 - 5575

Published: July 21, 2023

Adsorption has become the most popular and effective separation technique that is used across water wastewater treatment industries. However, present research direction focused on development of various solid waste-based adsorbents as an alternative to costly commercial activated carbon adsorbents, which make adsorptive process more effective, popularising sustainable options for remediation pollutants. Therefore, there are a large number reported results available application raw or treated agricultural biomass-based alternatives aqueous-phase heavy metal ion removal in batch adsorption studies. The goal this review article was provide comprehensive compilation scattered literature information up-to-date overview current state knowledge, based papers utilised wide range raw, modified, waste ions. Metal pollution its source, toxicity effects, technologies, mainly via adsorption, have been reviewed here detail. Emphasis placed ions using by-product-based under physicochemical conditions. Information important influential parameters, such concentration, adsorbent dose, solution pH, temperature, importantly, characteristics removal, critically analysed here. Finally, from reviewed, future perspectives conclusions were presented, few directions proposed.

Language: Английский

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Chitosan/Acid Modified Olive Tree (Olea europaea) Leaves as Sustainable Adsorbent for Organic Dye Removal from Water: Adsorption Modeling and Optimization by Box-Behnken Design

International Journal of Environmental Research, Journal Year: 2025, Volume and Issue: 19(2)

Published: Jan. 9, 2025

Language: Английский

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Photocatalysis as a Pre-Discharge Treatment to improve the Effect of Textile Dyes on Human Health: A Critical Review

Heliyon, Journal Year: 2024, Volume and Issue: 10(20), P. e39316 - e39316

Published: Oct. 1, 2024

Language: Английский

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Process Optimization and Equilibrium, Thermodynamic, and Kinetic Modeling of Toxic Congo Red Dye Adsorption from Aqueous Solutions Using a Copper Ferrite Nanocomposite Adsorbent

Molecules, Journal Year: 2024, Volume and Issue: 29(2), P. 418 - 418

Published: Jan. 15, 2024

In the present investigation of copper ferrite, a CuFe2O4 nanocomposite adsorbent was synthesized using sol–gel method, and its relevance in adsorptive elimination toxic Congo red (CR) aqueous phase examined. A variety structural methods were used to analyze nanocomposite; as-synthesized had agglomerated clusters with porous, irregular, rough surface that could be seen FE-SEM, it also contained carbon (23.47%), oxygen (44.31%), (10.21%), iron (22.01%) elemental composition by weight. Experiments designed achieve most optimized system through utilization central composite design (CCD). The highest uptake CR dye at equilibrium occurred when initial pH value 5.5, adsorbate concentration 125 mg/L, dosage 3.5 g/L. Kinetic studies conducted, they showed adsorption process followed pseudo-second-order (PSO) model (regression coefficient, R2 = 0.9998), suggesting chemisorption mechanism, overall reaction rate governed both film pore diffusion molecules. which molecules taken up onto particle revealed interactions involving electrostatic forces, hydrogen bonding, filling. According isotherm studies, data exhibited strong agreement Langmuir (R2 0.9989), demonstrating maximum monolayer capacity (qmax) 64.72 mg/g 6 302 K. Considering obtained negative ΔG positive ΔHads ΔSads values across all tested temperatures thermodynamic investigations, confirmed characterized as endothermic, spontaneous, feasible, an increased level randomness. developed this study is anticipated find extensive application effluent treatment, owing excellent reusability remarkable capability effectively remove comparison other adsorbents.

Language: Английский

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Citric acid-modified rape straw: a novel adsorbent for the removal of crystal violet dye from aqueous solutions

Journal of Dispersion Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 12

Published: Jan. 8, 2025

Rape straw, an agricultural by-product, was modified with citric acid (CA) to adsorb the cationic dye crystal violet (CV) from aqueous solution. The morphology and surface properties of adsorbent were observed by scanning electron microscopy (SEM) X-ray photoelectron analysis (XPS). experimental conditions optimized effects initial pH, dosage, concentration contact time. results showed that CA-modified rape straw had a higher adsorption capacity for compared pristine rapes straw; at pH 3.0 ± 0.15 removal ratio increased up 98.30% 5.80%. This study provides detailed comparison time curve different concentrations. CV rate 97.43% 0.25%, 99.09% 0.61% 99.11% 2.20% respectively within 30 min high low Langmuir isotherm proved be most appropriate analytical method predict results. maximum 1012.62 6.40 mg g−1. kinetic process on new investigated using model based pseudo-first pseudo-second order. good fit correlation coefficient R2 ≥ 0.99 suggested order has affinity mechanism.

Language: Английский

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Adsorptive removal of toxic methylene blue and crystal violet dyes from aqueous solutions using Prunus spinosa: isotherm, kinetic, thermodynamic, and error analysis

Biomass Conversion and Biorefinery, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

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Novel Hybrid rGO-BC@ZrO2 Composite: A Material for Methylene Blue Adsorption

Water, Journal Year: 2025, Volume and Issue: 17(5), P. 627 - 627

Published: Feb. 21, 2025

This study reports the preparation of a novel hybrid composite and its application in adsorption. For this preparation, zirconia (ZrO2) was precipitated onto an integrated framework reduced graphene oxide (rGO) black cumin (BC) seeds. Characterization using Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, energy-dispersive analysis, transmission microscopy confirmed successful incorporation ZrO2 nanoparticles (5–20 nm) into carbon rGO seed powder. The microscopic analysis further revealed that NPs were dispersed throughout rGO-BC framework. Using rGO-BC@ZrO2 composite, methylene blue dye decontaminated from water through batch adsorption process. achieved 96% MB at adsorbent dose 2.0 g/L, nearly 100% when concentration 3.0 g/L. Modeling experimental values also established to verify viability mechanism. Thermodynamic modeling feasibility spontaneity present Isotherm modeling, which showed compatibility with Freundlich isotherm, suggested multilayer demonstrated good persistence reusability for up five consecutive cycles. Thus, presents optimistic results regarding purification.

Language: Английский

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Efficient Adsorption of Methylene Blue Dye Using Ni/Al Layered Double Hydroxide-Graphene Oxide Composite

BULLETIN OF CHEMICAL REACTION ENGINEERING AND CATALYSIS, Journal Year: 2024, Volume and Issue: 19(2), P. 181 - 189

Published: Feb. 21, 2024

To address environmental pollution, we developed Ni/Al layered double hydroxide-graphene oxide (Ni/Al-GO) adsorbent materials for the purpose of eliminating methylene blue (MB) dye pollutants. The adsorption process was explored by examining many experimental factors, including temperature, regeneration/reuse procedure, pH, and time, their effects on material. appropriate model isotherm is Langmuir isotherm. Ni/Al-GO material achieved a maximum capacity 61.35 mg/g MB at temperature 60 °C. thermodynamic characteristics indicate that both endothermic spontaneous as increases. regeneration method demonstrated has highly stable structure, enabling it to be utilized five cycles with remarkable rate 93.49% in fifth cycle. pH yielded best results all 10, kinetic pseudo second-order behavior. Copyright © 2024 Authors, Published MKICS BCREC Publishing Group. This an open access article under CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).

Language: Английский

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A novel phosphorylated MXene composite for enhanced selective adsorption of uranium

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(3), P. 112518 - 112518

Published: March 15, 2024

Language: Английский

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Application of Aptenia cordifolia powder as a biosorbent for methylene blue retention from an aqueous medium: Isotherm, kinetic, and thermodynamic investigations

Desalination and Water Treatment, Journal Year: 2024, Volume and Issue: 318, P. 100263 - 100263

Published: April 1, 2024

In this study, Aptenia cordifolia powder was utilized as a biosorbent material to effectively treat synthetic aqueous solution polluted with methylene blue. The characterization of conducted according several analyses, including Fourier transforms infrared, scanning electron microscopy, the point zero charge and energy dispersive X-ray. retention process investigated considering factors mass, contact time, initial pH, temperature, concentration results obtained indicate that optimal dose adsorbent 2 g.L-1. equilibrium time approximately 120 minutes, biosorption capacity increases an increase in pH. pseudo-second-order model describes adequately blue using cordifolia. Langmuir proved be more applicable analysis isotherm data, indicating maximum amount 51.82 mg.g-1. Moreover, removal thermodynamically endothermic, spontaneous, favorable. These findings demonstrate potential biomass effective for treatment dyes contaminated effluents.

Language: Английский

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