Modified biochar as a green adsorbent for removal of hexavalent chromium from various environmental matrices: mechanisms, methods, and prospects

S Ambika, M Kumar, L Pisharody, M Malhotra… - Chemical Engineering …, 2022 - Elsevier
Abstract Hexavalent chromium (Cr (VI)) contamination has gained interest from regulatory
authorities due to its high toxicity and carcinogenicity. Different approaches have been …

Removal of hexavalent chromium via biochar-based adsorbents: State-of-the-art, challenges, and future perspectives

R Sinha, R Kumar, P Sharma, N Kant, J Shang… - Journal of …, 2022 - Elsevier
Chromium originates from geogenic and extensive anthropogenic activities and significantly
impacts natural ecosystems and human health. Various methods have been applied to …

A systematic review on adsorptive removal of hexavalent chromium from aqueous solutions: Recent advances

AU Rajapaksha, R Selvasembian, A Ashiq… - Science of the Total …, 2022 - Elsevier
The contamination of natural resources by hexavalent chromium (Cr (VI)) originating from
natural and anthropogenic activities is a serious environmental concern. Although many …

Adsorptive removal of noxious cadmium ions from aqueous medium using activated carbon/zirconium oxide composite: Isotherm and kinetic modelling

G Sharma, M Naushad - Journal of Molecular Liquids, 2020 - Elsevier
The heavy metal ions pollution is serious threat for aquatic and terrestrial living beings. The
adsorption is facile process to encounter the heavy metal pollution. Various types of …

Facile preparation of magnetic Zr-MOF for adsorption of Pb (II) and Cr (VI) from water: Adsorption characteristics and mechanisms

C Wang, C **ong, Y He, C Yang, X Li, J Zheng… - Chemical Engineering …, 2021 - Elsevier
A novel magnetic Zr-MOF named Ni 0.6 Fe 2.4 O 4-UiO-66-PEI was synthesized by
modifying UiO-66-NH 2 with Ni 0.6 Fe 2.4 O 4 and polyethyleneimine and its sorption …

Recent development of magnetic biochar crosslinked chitosan on heavy metal removal from wastewater–modification, application and mechanism

JF Chin, ZW Heng, HC Teoh, WC Chong, YL Pang - Chemosphere, 2022 - Elsevier
Heavy metal contamination in water bodies is currently in an area of greater concern due to
the adverse effects on human health. Despite the good adsorption performance of biochar …

Nano-zerovalent manganese/biochar composite for the adsorptive and oxidative removal of Congo-red dye from aqueous solutions

J Iqbal, NS Shah, M Sayed, NK Niazi, M Imran… - Journal of Hazardous …, 2021 - Elsevier
Abstract Congo-red (CR), a precursor of textile products and a contaminant of great concern,
has contaminated aquatic environments. Here, we explored the synthesis of mesoporous …

Magnetite-impregnated biochar of parthenium hysterophorus for adsorption of Cr (VI) from tannery industrial wastewater

J Fito, M Abewaa, T Nkambule - Applied Water Science, 2023 - Springer
The tannery industry inevitably generates toxic and catastrophic wastewater, which results in
a huge threat to public health and water resources. Therefore, this work aimed to synthesize …

A critical review of biochar-based materials for the remediation of heavy metal contaminated environment: Applications and practical evaluations

M Liu, E Almatrafi, Y Zhang, P Xu, B Song… - Science of the Total …, 2022 - Elsevier
The contamination of heavy metals (HMs) in the environment has aroused a global concern.
The valid remediation of HM contaminated environment is a highly significant issue. As …

Modified magnetic chitosan materials for heavy metal adsorption: a review

K Wang, F Zhang, K Xu, Y Che, M Qi, C Song - RSC advances, 2023 - pubs.rsc.org
Magnetic chitosan materials have the characteristics of both chitosan and magnetic particle
nuclei, showing the characteristics of easy separation and recovery, strong adsorption …