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