Insights into simultaneous adsorption and oxidation of antimonite [Sb(III)] by crawfish shell-derived biochar: spectroscopic investigation and theoretical calculations

Authors :: Hanbo Chen
Yurong Gao
Jianhong Li
Chenghua Sun
Binoy Sarkar
Amit Bhatnagar
Nanthi Bolan
Xing Yang
Jun Meng
Zhongzhen Liu
Hong Hou
Jonathan W.C. Wong
Deyi Hou
Wenfu Chen
Hailong Wang
Source :: Biochar, Vol 4, Iss 1, Pp 1-16 (2022)
Publication Year :: 2022
Publisher :: Springer, 2022.
Abstract: Article highlights Crawfish-shell biochar (CSB) pyrolyzed at 350°C showed the highest Sb(III) adsorption and oxidation. DFT calculations highlighted complexation, H-bonding and π–π interactions as key removal mechanisms. Sb(III) oxidation was mainly governed by persistent free radicals and electron transfer capacity of biochar.

Subjects :: Sorption
Heavy metal
Synchrotron
Density functional theory
Contaminated water
Environmental sciences
GE1-350
Agriculture

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