Development of Plasmonic Attapulgite/Co(Ti)O<i>x</i> Nanocomposite Using Spent Batteries toward Photothermal Reduction of CO<sub>2</sub>
Shixiang Zuo,
Shan Qin,
Bing Xue,
Rong Xu,
Huiting Shi,
Xiaowang Lu,
Chao Yao,
Haoguan Gui,
Xiazhang Li
Affiliations
Shixiang Zuo
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
Shan Qin
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
Bing Xue
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
Rong Xu
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
Huiting Shi
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
Xiaowang Lu
School of Material Science and Engineering, Yancheng Institute of Technology, Yancheng 224051, China
Chao Yao
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
Haoguan Gui
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
Xiazhang Li
Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Institute of Urban & Rural Mining, Changzhou University, Changzhou 213164, China
The rapid development of the battery industry has brought about a large amount of waste battery pollution. How to realize the high-value utilization of waste batteries is an urgent problem to be solved. Herein, cobalt and titanium compounds (LTCO) were firstly recovered from spent lithium-ion batteries (LIBs) using the carbon thermal reduction approach, and plasmonic attapulgite/Co(Ti)Ox (H-ATP/Co(Ti)Ox) nanocomposites were prepared by the microwave hydrothermal technique. H-ATP had a large specific surface area and enough active sites to capture CO2 molecules. The biochar not only reduced the spinel phase of waste LIBs into metal oxides including Co3O4 and TiO2 but also increased the separation and transmission of the carriers, thereby accelerating the adsorption and reduction of CO2. In addition, H-ATP/Co(Ti)Ox exhibited a localized surface plasmon resonance effect (LSPR) in the visible to near-infrared region and released high-energy hot electrons, enhancing the surface temperature of the catalyst and further improving the catalytic reduction of CO2 with a high CO yield of 14.7 μmol·g−1·h−1. The current work demonstrates the potential for CO2 reduction by taking advantage of natural mineral and spent batteries.
