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
Affiliations
Hanbo Chen
School of Environmental and Chemical Engineering, Foshan University
Yurong Gao
School of Environmental and Chemical Engineering, Foshan University
Jianhong Li
School of Environmental and Chemical Engineering, Foshan University
Chenghua Sun
Department of Chemistry and Biotechnology, Center for Translational Atomaterials, Swinburne University of Technology
Binoy Sarkar
Future Industries Institute, University of South Australia
Amit Bhatnagar
Department of Separation Science, LUT School of Engineering Science, LUT University
Nanthi Bolan
School of Agriculture and Environment, The University of Western Australia
Xing Yang
School of Environmental and Chemical Engineering, Foshan University
Jun Meng
Agronomy College, Shenyang Agricultural University
Zhongzhen Liu
Institute of Agricultural Resources and Environment, Guangdong Academy of Agricultural Sciences
Hong Hou
State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences
Jonathan W.C. Wong
Department of Biology, Hong Kong Baptist University
Deyi Hou
School of Environment, Tsinghua University
Wenfu Chen
Agronomy College, Shenyang Agricultural University
Hailong Wang
School of Environmental and Chemical Engineering, Foshan University
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.
