1. Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, Institute of Environmental Research at Greater Bay, Guangzhou University, Guangzhou 510006, China
2. School of Energy and Environment, City University of Hong Kong, Kowloon Tong, Hong Kong, China
3. Department of Materials Science and Engineering & Centre for Functional Photonics (CFP), City University of Hong Kong, Kowloon Tong, Hong Kong, China
4. Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China