1. College of Life Science, Huaibei Normal University, Huaibei, Anhui, 235000, China
2. School of Chemical and Environmental Engineering, China University of Mining and Technology-Beijing, No. Ding-11 Xueyuan Road, Haidian District, 100083, Beijing, China
3. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology-Beijing, Beijing, 100083, China