Ultimate Resourcization of Waste: Crab Shell-Derived Biochar for Antimony Removal and Sequential Utilization as an Anode for a Li-Ion Battery

• DOI: 10.1021/acssuschemeng.1c01851
• Publication Date: 2021-06-23T14:13:40Z
• Authors: Xinyue Zhang; Yao Wang; Na Ju; Yongjian Ai; Yangyang Liu; Jiaxing Liang; Ze-Nan Hu; Rongxiu Guo; Wenjuan Xu; Wei Zhang; Yang Qi; Dun Niu; Qionglin Liang; Hong-bin Sun; Yang Yang
• Keywords: Antimonate; Langmuir adsorption model

The development of high-capacity adsorbents is pivotal for the removal antimonite (Sb(III)) and antimonate (Sb(V)) as priority pollutants in water. Herein, a Fe-La-doped biomass carbon adsorbent (Cs/Fe-La) was prepared efficient both Sb(III) Sb(V). Cs/Fe-La shows excellent adsorption behavior Sb(V) at 40 °C with maximum capacity 498 337 mg/g, respectively. Additionally, antimony mechanism contribution composition to high were analyzed based on characterization physicochemical analysis studies, pseudo-second-order kinetic model well Langmuir fit results well. Remarkably, considering secondary pollution caused by direct disposal antimony-containing waste adsorbents, an antimony-enriched (Cs/Fe-La-SbOx) used anode material Li-ion battery. heat-treated exhibited good cycling performance reversible specific 833.8 mAh/g after 500 cycles. This work has demonstrated promising pathway that can achieve sustainable utilization simultaneously minimizing contamination maximizing recycling adsorbents.