1. School of Chemical Science and Technology, Yunnan University, Cuihubei Road, Kunming 650091, China
2. Kunming Economic Development Zone Yunnan Pilot Free Trade Zone, Zhongkeyun Environmental Co., Ltd., Yingxiang Xincheng, Kunming 650000, China
3. Faculty of Environmental Science and Engineering, Kunming University of Science and Technology, Jingmingnan Road 727, Kunming 650000, China