1 State Key Laboratory of Photocatalysis on Energy and Environment, Research Institute of Hotocatalysis, College of Chemistry, Fuzhou University, Fuzhou 350116, China. Electronic address: xwang@fzu.edu.cn.
2 International Research Center for Renewable Energy, Xi'an Jiaotong University, Xi'an 710049, China. Electronic address: dwjing@xjtu.edu.cn.
3 Environmental Energy Research Group, Research Institute for Sustainable Urban Development (RISUD), The Hong Kong Polytechnic University, Hong Kong, China. Electronic address: meng.ni@polyu.edu.hk.