Advancements in application of modified biochar as a green and low-cost adsorbent for wastewater remediation from organic dyes

Royal Society Open Science, Journal Year: 2024, Volume and Issue: 11(5)

Published: May 1, 2024

Synthetic organic dyes, which are resistant to biodegradation, pose a notable health risk, potentially leading cancer and respiratory infections. Researchers have addressed this concern by exploring physicochemical methods remove dyes from wastewater. A particularly promising solution involves modified biochar adsorbents, demonstrate high efficiency in dye removal. Biochar, charcoal-like material derived biomass pyrolysis, offers advantages such as low cost, eco-friendliness, reusability. Beyond its role sustainable soil remediation, proves effective removing wastewater after undergoing physical or chemical modification. Acid–base activation metal–heteroatom impregnation enhances biochar's adsorption capacity. This comprehensive review examines the attributes of biochar, common for production modification, impacts raw materials, pyrolysis temperature, heating rate residence time. It further elucidates mechanism removal assessing factors influencing efficiency, including feedstock, pH, particle size, initial concentration, dosage reaction explores challenges, opportunities, reusability regeneration treating also discusses recent advances using adsorption-based biochar. The ultimately advocates enhancing performance through post-modification.

Language: Английский

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Preparation and characterization of zirconium-based metal-organic skeleton composite sodium alginate@SiO2 and its adsorption on methylene blue solution in water

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 304, P. 140916 - 140916

Published: Feb. 10, 2025

Language: Английский

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Removal of methyl orange and methylene blue by bimetallic zinc/cobalt metal–organic skeleton/carbon nanotubes (Zn/Co-ZIF@CNTs)

RSC Advances, Journal Year: 2025, Volume and Issue: 15(6), P. 4681 - 4692

Published: Jan. 1, 2025

Zinc/cobalt metal–organic skeleton/carbon nanotubes (Zn/Co-ZIF@CNTs) were prepared by solvothermal method using Zn/Co-ZIF as the main raw material and CNTs carrier.

Language: Английский

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Adsorption characteristics of tetracycline hydrochloride and oxytetracycline by a MOF-525(Co) metal organic framework

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2023, Volume and Issue: 677, P. 132443 - 132443

Published: Sept. 21, 2023

Language: Английский

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Facile Synthesis and Characterization of Novel Nanostructures for the Efficient Disposal of Crystal Violet Dye from Aqueous Media

Inorganics, Journal Year: 2023, Volume and Issue: 11(8), P. 339 - 339

Published: Aug. 17, 2023

An excessive accumulation of crystal violet dye in the human body results an accelerated heart rate, tetraplegia, eye irritation, and long-term damage to transparent mucous membrane that protects eyeballs. Accordingly, this paper, sodium manganese silicate/sodium silicate hydroxide hydrate was easily fabricated as a novel type nanostructures for successful disposal from aqueous solutions. The formed after hydrothermal treatment gel produced interaction Mn(II) ions with Si(IV) at 180 °C 6, 12, 18, 24 h were abbreviated MS1, MS2, MS3, MS4, respectively. XRD showed average crystallite size MS4 samples is 8.38, 7.43, 4.25, 8.76 nm, BET surface area 41.58, 46.15, 58.25, 39.69 m2/g, consist spherical irregular shapes grain sizes 157.22, 88.06, 43.75, 107.08 best adsorption conditions employing products achieved pH = 8, contact time 140 min, solution temperature 298 kelvin. linear pseudo-2nd-order model well Langmuir isotherm better describe using adsorbents. studied thermodynamic parameters indicated adsorbents spontaneous, exothermic, chemical. maximum capacities towards are 342.47, 362.32, 411.52, 310.56 mg/g,

Language: Английский

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Recent progress on the removal of aqueous mercury by carbon-based adsorbents: A review

Inorganic Chemistry Communications, Journal Year: 2023, Volume and Issue: 156, P. 111207 - 111207

Published: Aug. 9, 2023

Language: Английский

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Preparation of Sulfonate-Grafted Tetraphenylethylene-Based Hyper-Cross-Linked Polymers for Efficient Adsorption of Organic Dyes in Aqueous Solutions

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: 6(17), P. 10615 - 10624

Published: Aug. 23, 2024

Superhydrophilic hyper-cross-linked polymers (HCPs) have become useful adsorbents for dye disposal due to their ultrahigh surface areas, permanent pores, and excellent water dispersion. Herein, a simple synthetic method has been proposed the construction of hydrophilic tetraphenylethylene (TPE)-based HCPs via molecular knitting subsequent one-step sulfonation, aiming significantly improve adsorption performance toward cationic dyes. Compared hydrophobic precursor with area up 1561 m2 g–1 (HCTPE), target sulfonated HCP named SHCTPE lower but improved hydrophilicity affinity (primarily electrostatic interaction) representative dyes including methylene blue (MB) rhodamine B (RhB), demonstrating impressive rates >99% removal efficiency (η) in only 5 s pseudo-second-order rate constants (k2) 58.7 83.4 g mg–1 min–1, respectively. The capacity also reached 1410 mg MB 1096 RhB, surpassing most HCP-based adsorbents. More importantly, exhibited stability after five cycles, its corresponding adsorption-treated solution showed considerable biocompatibility growth wheat seeds. Our strategy may provide an approach develop superhydrophilic efficient organic aqueous solutions.

Language: Английский

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Green synthesis of magnetic azo-linked porous organic polymers with recyclable properties for enhanced Bisphenol-A adsorption from aqueous solutions

Environmental Research, Journal Year: 2024, Volume and Issue: 249, P. 118427 - 118427

Published: Feb. 5, 2024

Language: Английский

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MOF-525 and Fe-loaded MOF-525 for the selective adsorption removal of Cu(Ⅱ) and Cr(VI)

Journal of Solid State Chemistry, Journal Year: 2024, Volume and Issue: 339, P. 124927 - 124927

Published: Aug. 2, 2024

Language: Английский

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Benign preparation of metal organic framework materials with different copper precursors and adsorption of organic dyes

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136302 - 136302

Published: Jan. 1, 2025

Language: Английский

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