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Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species

Zheng, Chujing; Yang, Zhihui; Si, Mengying; Zhu, Feng; Yang, Weichun; Zhao, Feiping; Shi, Yan (2020-10-25)

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zheng_et_al_application_of_biochars_final_draft.pdf (1.353Mb)
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Sisältö avataan julkiseksi
: 26.10.2022

Post-print / Final draft

Zheng, Chujing
Yang, Zhihui
Si, Mengying
Zhu, Feng
Yang, Weichun
Zhao, Feiping
Shi, Yan
25.10.2020

Journal of Hazardous Materials

Elsevier

School of Engineering Science

https://doi.org/10.1016/j.jhazmat.2020.124376
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Julkaisun pysyvä osoite on
http://urn.fi/URN:NBN:fi-fe2020112693411

Tiivistelmä

Chromium (Cr) is one of the most toxic pollutants that has accumulated in terrestrial and aqueous systems, posing serious risks towards living beings on a worldwide scale. The immobilization, removal, and detoxification of active Cr from natural environment can be accomplished using multiple advanced materials. Biochar, a carbonaceous pyrolytic product made from biomass waste, is considered as a promising material for the elimination of Cr contamination. The preparation and properties of biochar as well as its remediation process for Cr ions have been well investigated. However, the distinct correlation of the manufacturing, characteristics, and mechanisms involved in the remediation of Cr contamination by various designed biochars is not summarized. Herein, this review provides information about the production, modification, and characteristics of biochars along with their corresponding effects on Cr stabilization. Biochar could be modified via physical, hybrid, chemical, and biological methods. The remediating mechanisms of Cr contamination using biochars involve adsorption, reduction, electron shuttle, and photocatalysis. Moreover, the coexisting ions and organic pollutants change the pattern of the remediating process of biochar in actual Cr contaminated water and soil. Finally, the present limitations and future perspectives are proposed.

Lähdeviite

Zheng, C., Yang, Z., Si, M., Zhu, F., Yang, W., Zhao, F., Shi, Y. (2020). Application of biochars in the remediation of chromium contamination: Fabrication, mechanisms, and interfering species. Journal of Hazardous Materials. DOI: 10.1016/j.jhazmat.2020.124376

Alkuperäinen verkko-osoite

https://www.sciencedirect.com/science/article/abs/pii/S0304389420323669?via%3Dihub
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