1. School of Chemistry and Chemical Engineering, Shanxi Datong University, Datong, Shanxi, 037009, P. R China
2. School of Resources and Environment, University of Electronic Science and Technology of China, Chengdu, Sichuan, 611731, P. R China
3. School of Science, Research Center for Advanced Computation, Xihua University, Chengdu, Sichuan, 610039, P. R. China