1. College of Light Industry and Textile, Inner Mongolia University of Technology, Hohhot, 010080, China
2. Transportation Institute, Inner Mongolia University, Hohhot, Inner Mongolia 010021, P. R. China
3. Ecological Environment Monitoring and Monitoring Center Wuhai, Wuhai 016040, China
4. Inner Mongolia Key Laboratory of Chemistry and Physics of Rare Earth Materials, College of Chemistry and Chemical Engineering, Inner Mongolia University, Hohhot, 010021, China