1. College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China
2. Key Laboratory of Hunan Province for Water Environment and Agriculture Product Safety, Changsha 410083, P. R. China
3. School of Chemistry and Chemical Engineering, Hainan Normal University, Haikou Hainan 571158, P. R. China
4. Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming Yunnan 650500, P. R. China