1 Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, 727 South Jing Ming Road, Chenggong County, Kunming, 650500, Yunnan Province, China.
2 Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, 727 South Jing Ming Road, Chenggong County, Kunming, 650500, Yunnan Province, China. yingluo@kmust.edu.cn.