1. College of Chemistry and Bioengineering, Guangxi Normal University for Nationalities, Chongzuo, China
2. Personnel Department of Guangxi Normal University for Nationalities, Chongzuo, China
3. College of Mathematics, Physics and Electronic Information Engineering, Guangxi Normal University for Nationalities, Chongzuo, China
4. Key Laboratory of Ecology of Rare and Endangered Species and Environmental Protection, Ministry of Education, Guangxi Normal University, Guilin, China