1. Xi’an University of Science and Technology, Xi’an, 710054, P. R. China
2. Shaanxi Provincial Key Laboratory of Geological Support for Coal Green Exploitation, Xi’an, 710054, P. R. China
3. School of Life Science, Huzhou University, Huzhou, 313000, P. R. China
4. School of Materials Engineering, Changshu Institute of Technology, Changshu, 215500, P. R. China
5. College of Geology Engineering and Geomatics, Chang’an University, Xi’an, Shaanxi 710054, P. R. China