Construction of ZnS/CdS/Ti 3+ -TiO 2 heterojunction: synergistic enhancement of visible light harvesting and photocathodic protection performance

Key Points

• The aim is to assess the effectiveness of a ZnS/CdS/Ti3+-TiO2 heterojunction film for improving photocathodic protection.
• Preparation of a composite ZnS/CdS/Ti3+-TiO2 heterojunction film
• Evaluation of visible light absorption
• Testing photocathodic protection performance under simulated sunlight
• Application on 316 stainless steel
• Significant enhancement in visible-light absorption compared to previous materials
• Improved charge separation is observed
• Superior photocathodic protection for 316 stainless steel achieved under sunlight simulations