1. Key
Laboratory of Salt Lake Resources and Chemistry, Qinghai Institute
of Salt Lakes, Chinese Academy of Sciences, 18 Xinning Road, Xining 810008, P. R. China
2. School
of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P. R. China
3. University of Chinese Academy of Sciences, Beijing 100049, P. R. China
4. College
of Chemistry and Chemical Engineering, Central South University, Changsha 410083, P. R. China