1. Department of Chemistry
2. Faculty of Material Sciences and Chemistry
3. China University of Geosciences
4. Wuhan 430074
5. China
6. Department of Plant and Environmental Sciences
7. University of Copenhagen
8. DK-1871 Frederiksberg C
9. Denmark
10. Sino-Danish Centre for Education and Research (SDC)
11. State Key Laboratory of Environmental Aquatic Chemistry
12. Research Centre for Eco-Environmental Sciences
13. Chinese Academy of Sciences
14. Beijing 100085