1. School of Environment and Chemical Engineering
2. North China Electric Power University
3. Beijing 102206
4. P. R. China
5. Laboratory for Nanomaterials National Center for Nanoscience and Technology
6. Key Laboratory of Petroleum Resources
7. Gansu Province/Key Laboratory of Petroleum Resources Research
8. Institute of Geology and Geophysics
9. Chinese Academy of Sciences
10. Lanzhou 730000
11. Beijing
12. Key Laboratory of Novel Thin Film Solar Cells
13. Institute of Plasma Physics
14. Hefei 230031
15. Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions