Efficient fabrication of a composite sponge for Cr(VI) removal via citric acid cross-linking of metal-organic framework and chitosan: Adsorption isotherm, kinetic studies, and optimization using Box-Behnken design

Materials Today Sustainability, Год журнала: 2024, Номер 26, С. 100732 - 100732

Опубликована: Март 8, 2024

Язык: Английский

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Recent advances in water remediation from toxic heavy metals using biochar as a green and efficient adsorbent: A review

Case Studies in Chemical and Environmental Engineering, Год журнала: 2023, Номер 8, С. 100495 - 100495

Опубликована: Сен. 22, 2023

Heavy metal pollution is a serious environmental problem that poses threat to human health and the environment. Water by toxic heavy metals major cause of this problem, it can destroy ecosystems, spread disease, make drinking water unsafe. Biochar promising green adsorbent for removing from water. It derived various biomasses, including agricultural organic wastes, has high carbon content, surface area, stability. These properties enable biochar effectively remove through cation exchange adsorption. This review summarizes recent advances in modification enhanced adsorption metals. discusses advantages, applications, challenges, prospects method. Biochar-based advanced oxidation processes (AOPs) have shown promise decomposition complexes enhancement capacity free ions industrial wastewater. The also highlights research gaps limitations remediation proposes future directions. Future should focus on developing environmentally friendly cost-effective technologies scaling up biochar-based removal applications. Scheme 1 illustrates overall summarized presentation article as graphical abstract.

Язык: Английский

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A novel glutaraldehyde cross-linked chitosan@acid-activated bentonite composite for effective Pb (II) and Cr (VI) adsorption: Experimental and theoretical studies

Separation and Purification Technology, Год журнала: 2023, Номер 334, С. 126094 - 126094

Опубликована: Дек. 17, 2023

Язык: Английский

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Adsorptive removal of heavy metals from aqueous solutions: Progress of adsorbents development and their effectiveness

Environmental Research, Год журнала: 2024, Номер 251, С. 118562 - 118562

Опубликована: Март 5, 2024

Язык: Английский

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Efficient Removal of Cadmium (Cd²⁺) from Aqueous Solutions by Chitosan@fig Branch Biochar: Adsorption Performance and Enhanced Complexation

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

In this study, fig branch biochar (FBB) was modified by chitosan to improve the Cd2+ adsorption performance from an aqueous solution. The surface area, pores, and functional groups of chitosan-modified (CMFBB) were characterized DTG-TGA, BET, SEM-EDS, FTIR, XRD. addition, impact various conditions on Cd analyzed, including dosage, initial pH, concentration, temperature, reaction time, coexisting cations. kinetics, isotherms, practical applications also investigated. Under optimized pH 6, adsorbent dose 2 g L-1, time 90 min, concentration 100 mg 25 °C, capacity 62.25 g-1, representing a 78.26% increase compared FBB. data for CMFBB found be well-described pseudo-second-order kinetic Langmuir isothermal models, indicating that monolayer chemical process occurred. spontaneous endothermic process, cations exerted negligible influence process. After five adsorption-desorption cycles, maintained efficiency 92.3%, demonstrating excellent regeneration capability. quantification mechanisms suggested physical adsorption, cation exchange, precipitation, complexation, π-π interactions accounted 3.70, 2.50, 33.04, 58.76, 2.0% total adsorbed in CMFBB, respectively. Compared with FBB, level increased 26.52% complexation. This work implies has great potential as effective absorbent treating polluted water.

Язык: Английский

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Organic pollutants removal by phosphoric acid modified biochar from residue of Inonotus obliquus

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(5), С. 110292 - 110292

Опубликована: Июнь 5, 2023

Язык: Английский

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Fabrication of ZnO decorated porous chitosan beads for the sustainable bioremediation of Cr(VI) contaminated water

Journal of environmental chemical engineering, Год журнала: 2023, Номер 11(5), С. 110445 - 110445

Опубликована: Июнь 26, 2023

Язык: Английский

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Cr(VI) adsorption on activated carbon, sludge derived biochar, and peanut shells derived biochar: Performance, mechanisms during the reuse process and site energy distribution analysis

Journal of Water Process Engineering, Год журнала: 2023, Номер 57, С. 104679 - 104679

Опубликована: Дек. 30, 2023

Язык: Английский

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A new material fabricated by the combination of natural mineral perlite and graphene oxide: Synthesis, characterization, and methylene blue removal

Diamond and Related Materials, Год журнала: 2024, Номер 143, С. 110848 - 110848

Опубликована: Фев. 6, 2024

Язык: Английский

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Fabrication of abundantly functionalized dendritic biochar composites as adsorbents for the high-efficiency removal of heavy metal ions and dyes

Separation and Purification Technology, Год журнала: 2024, Номер 337, С. 126368 - 126368

Опубликована: Янв. 21, 2024

Язык: Английский

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