1. New Energy Research Institute; School of Environment and Energy; South China University of Technology; Guangzhou Higher Education Mega Center; Guangzhou 510006 P. R. China
2. State Key Laboratory of Luminescent Materials and Devices; South China University of Technology; 381 Wushan Road Guangzhou 510641 P. R. China
3. The Key Lab of Pollution Control and Ecosystem Restoration in Industry Clusters; Ministry of Education; South China University of Technology; Guangzhou Higher Education Mega Centre; Guangzhou 510006 P. R. China
4. Department of Chemistry and Biochemistry; University of California; 1156 High Street Santa Cruz CA 95064 USA