List of Articles Colin Peiris Article 1 - Recent Progress in Visible-Light Active (VLA) TiO2 Nano-Structures for Enhanced Photocatalytic Activity (PCA) and Antibacterial Properties: A Review Kasun Seneviratne Imalka Munaweera Sriyani Peiris Colin Peiris Nilwala Kottegoda Iranian Journal of Catalysis , Issue 4 , Year , Summer 2021