Pyrolyzed fabrication of N/P co-doped biochars from (NH4 )3 PO4 -pretreated coffee shells and appraisement for remedying aqueous Cr(VI) contaminants

Bioresource Technology
Jianqiu LiQiang Huang

Abstract

In this study, an agricultural residue-derived biochar was fabricated by pyrolyzing coffee shells using (NH4)3PO4 pretreatment. The influence of pyrolysis temperature on the structure and properties of biochars was investigated. The elemental analysis, spectroscopic and textural studies showed that the biochars were endued sufficient N and P co-doping and large specific surface area by (NH4)3PO4-pretreatment. The appraisement for remedying aqueous Cr(VI) contaminants demonstrated that the N/P co-doped biochars offered high efficiencies above 95% for aqueous Cr(VI) removal. The mechanism investigation displayed that the adsorption and reduction of Cr(VI) were boosted by the synergistic effect between the hierarchical pore structure and the groups related to oxygen, nitrogen and phosphorus. Moreover, the biochar can be readily regenerated by HCl solution soaking for reuses several times. This work should permit for providing a convenient utilization of coffee shell agricultural residues, and the coffee shell-derived biochars supplied potential for remedying Cr(VI) in effluents.

References

Sep 7, 2007·Journal of Hazardous Materials·Waleska E OliveiraSonia D Rocha
Nov 11, 2008·Journal of Hazardous Materials·Luiz C A OliveiraKarim Sapag
Apr 1, 2014·International Journal of Biological Macromolecules·Rathinam Karthik, Sankaran Meenakshi
Jun 4, 2016·Environmental Science & Technology·Anne Elise Creamer, Bin Gao
Jun 2, 2017·Chemical Society Reviews·Sergio NavalonHermenegildo García
Jan 27, 2019·Chemosphere·Wachiraphorn CherdchooJittima Charoenpanich
Nov 7, 2019·Bioresource Technology·Lijian LengHuajun Huang

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Citations

Mar 26, 2021·Journal of Colloid and Interface Science·Zhijuan WangQingqing Guan
Apr 4, 2021·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Yi WeiHuihui Wang

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