Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 ChinaCenter for Ocean Mega-Science Chinese Academy of Sciences Qingdao 266071 ChinaUniversity of Chinese Academy of Sciences Beijing 100049 China;
Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 ChinaCenter for Ocean Mega-Science Chinese Academy of Sciences Qingdao 266071 China;
Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China;
Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 ChinaUniversity of Chinese Academy of Sciences Beijing 100049 China;
Key Laboratory of Marine Environmental Corrosion and Bio-fouling Institute of Oceanology Chinese Academy of Sciences Qingdao 266071 China;
School of Environment and Safety Engineering Qingdao University of Science and Technology Qingdao 266042 China;
Cu2O/TiO2; p-n heterojunction; 316L SS; photoelectrochemical cathodic protection;