1. School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, China
2. Mineral Resources Department, Nanjing Customs District Industrial Products Inspection Center, Nanjing, Jiangsu, China
3. Shaanxi Shen-Wei Coal Pipeline Transportation Co. Ltd, West Section of Dongfeng Avenue No. 38, Weinan, Shaanxi, Chian
4. National and Local Joint Engineering Research Center of Biomedical Functional Materials, Nanjing Normal University, Nanjing, Jiangsu, China