1. Department of Applied Science, School of Science and Technology, Hong Kong Metropolitan University, Ho Man Tin, Kowloon, Hong Kong SAR, P. R. China
2. State Key Laboratory of Marine Pollution, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
3. Shenzhen Research Institute of City University of Hong Kong, Shenzhen, 518057, P. R. China
4. School of Energy and Environment, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
5. Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong SAR, P. R. China
6. School of Environmental Science and Engineering, Tianjin University, Tianjin, 300350, P. R. China