1. Beijing Key Lab for Green Catalysis and Separation; Department of Chemistry and Chemical Engineering; College of Environmental and Energy Engineering; Beijing University of Technology; 100 Pingleyuan Beijing 100124 P. R. China
2. State Key Laboratory of Luminescence and Applications; Changchun Institute of Optics; Fine Mechanics and Physics; Changchun 130033 Jilin P. R. China
3. Graduate School; University of Chinese Academy of Sciences; Beijing 100049 P. R. China
4. Beijing Guangqumen High School; Dongcheng District Beijing 100000 P. R. China
5. Sandia National Labs; 1001 University Blvd. Albuquerque NM 87106 USA