1. Institute of Resources and Environmental Engineering, Shanxi University, Taiyuan 030006, China
2. Shanghai Shangde Experimental School Noble Academy, Shanghai 201315, China
3. Longking-Coalogix Environmental Protection Technology (Shanghai) Co Ltd., Shanghai 200331, China
4. Jiangsu Longking-Coalogix Environmental Protection Technology Co., Ltd., Yancheng 224051, China