1. Hunan Province Key Laboratory of Coal Resources Clean Utilization and Mine Environment Protection, Hunan University of Science and Technology, Xiangtan, Hunan411201, China
2. School of Resource Environment and Safety Engineering, Hunan University of Science and Technology, Xiangtan, Hunan411201, China
3. CAS Key Laboratory of Urban Pollutant Conversion, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen361021, China
4. University of Chinese Academy of Sciences, Beijing100049, China