1. School of Environment and Safety Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
2. School of Materials Science and Engineering, Jiangsu University, Zhenjiang 212013, P. R. China
3. Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou University of Science and Technology, Suzhou 215009, P. R. China
4. School of Chemistry and Chemical Engineering, Institute for Energy Research, Jiangsu University, Zhenjiang 212013, P. R. China