1. Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
2. School of Chemistry and Chemical and Engineering, Guangxi Minzu University, Nanning, 530006, China
3. Key Lab. of Advanced Materials of Yunnan Province, Kunming 650093, China
4. Analysis and Testing Research Center, Kunming University of Science and Technology, Kunming 650093, China