1. State Key Laboratory of Coal Resources in Western China, Xi’an University of Science and Technology, Xi’an 710054, China
2. Institute of Environment Friendly Materials and Occupational Health, Anhui University of Science and Technology, Wuhu 241000, China
3. Key Laboratory of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China
4. State Key Laboratory of Mining Response and Disaster Prevention and Control in Deep Coal Mines, Anhui University of Science and Technology, Huainan 232001, China
5. Anhui Huainan Technical School, Huainan 232001, China