1. Engineering Research Center of Ministry of Education for Fine Chemicals, Shanxi University, Taiyuan 030006, China
2. State Environmental Protection Key Laboratory of Efficient Utilization Technology of Coal Waste Resources, Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China
3. State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, China
4. School of Chemistry & Chemical Engineering, Linyi University, Linyi 276000, China