Fabrication and characterization of MXene/carbon composite-based nanofibers (MXene/CNFs) membrane: An efficient adsorbent material for removal of Pb+2 and As+3 ions from water

Process Safety and Environmental Protection, Journal Year: 2023, Volume and Issue: 191, P. 462 - 471

Published: Feb. 6, 2023

Language: Английский

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Preparation and Physio–Chemical characterisation of activated carbon derived from prosopis juliflora stem for the removal of methylene blue dye and heavy metal containing textile industry effluent

Journal of Cleaner Production, Journal Year: 2023, Volume and Issue: 397, P. 136579 - 136579

Published: Feb. 24, 2023

Language: Английский

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Graphene oxide@Fe3O4-decorated iota-carrageenan composite for ultra-fast and highly efficient adsorption of lead (II) from water

International Journal of Biological Macromolecules, Journal Year: 2023, Volume and Issue: 253, P. 127437 - 127437

Published: Oct. 13, 2023

Language: Английский

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Sandwich-like construction of a new aminated chitosan Schiff base for efficient removal of Congo red

Applied Water Science, Journal Year: 2023, Volume and Issue: 13(2)

Published: Jan. 18, 2023

Abstract Herein, a novel sandwich-like α -ketoglutaric acid Schiff base-aminated chitosan composite ( -kGl-AmCsSB) was fabricated by reacting and aminated chitosan. The as-fabricated -kGl-AmCsSB inspected diversified characterization tools to determine its morphology, surface charge, chemical composition as well define the linkage pathway between -kGl AmCs. SEM images demonstrated spongy network of AmCs with interconnected pores structure which turned quite rough due free amine groups Notably, XPS FTIR spectra suggested group experimental results implied superior adsorption efficiency Congo red (CR) onto since maximum capacity q max ) reached 434.78 mg/g at 25 °C pH 3. Based on kinetics data, CR followed pseudo-second-order model. Furthermore, D-R model infers that occurred via physical interactions E value < 8 kJ/mol. recyclability test implemented for five cycles R% > 72%. More importantly, mechanism proposed discussed. Ultimately, exhibited advanced performance toward along excellent reusability. these results, we recommend more modifications exploiting remarkable advantages applying it large scale.

Language: Английский

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Enhanced removal efficiency of Cd2+ and Pb2+ from aqueous solution by H3PO4–modified tea branch biochar: Characterization, adsorption performance and mechanism

Journal of environmental chemical engineering, Journal Year: 2024, Volume and Issue: 12(2), P. 112183 - 112183

Published: Feb. 14, 2024

Language: Английский

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One-step synthesis of magnetic N-doped carbon nanotubes derived from waste plastics for effective Cr(Ⅵ) removal

Arabian Journal of Chemistry, Journal Year: 2024, Volume and Issue: 17(10), P. 105956 - 105956

Published: Aug. 10, 2024

The magnetic nitrogen-doped carbon nanotube is prepared by one-pot using waste plastics as feedstock in the existence of urea and Fe(NO3)3 for Cr(Ⅵ) removal form wastewater. characterization analysis indicates that nitrogen successfully doped on with specific surface area 158.71 m2/g saturation magnetization 36.47 emu g−1. group Fe3C contributes to complexation reduction adsorption capacity 27.47 mg data fitting well Pseudo-second order model, demonstrating chemisorption Cr(Ⅵ). mechanism Fe0, Fe2+, H*, oxygen-containing nitrogen-containing are crucial removal. key enhanced Cr (VI) reductive dissolved which accounts 23.6 % overall Cr(VI) from plastic

Language: Английский

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A Comprehensive Review on Green and Eco-Friendly Nano-Adsorbents for the Removal of Heavy Metal Ions: Synthesis, Adsorption Mechanisms, and Applications

Current Pollution Reports, Journal Year: 2024, Volume and Issue: 10(1), P. 1 - 39

Published: Feb. 19, 2024

Language: Английский

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Biochar-based adsorption for heavy metal removal in water: a sustainable and cost-effective approach

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(11)

Published: Sept. 24, 2024

Language: Английский

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

Langmuir, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 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.

Language: Английский

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KHCO3 activated biochar supporting MgO for Pb(II) and Cd(II) adsorption from water: Experimental study and DFT calculation analysis

Journal of Hazardous Materials, Journal Year: 2021, Volume and Issue: 426, P. 128059 - 128059

Published: Dec. 9, 2021

Language: Английский

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