1. Institute for Energy Research, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
2. School of the Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
3. College of Chemistry and Chemical Engineering, Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province, Hainan Normal University, Haikou 571158, P. R. China