 This paper reviews the basic principles of photocatalysis and photocatalytic CO2 reduction, discusses measures of photocatalytic efficiency, and summarizes current advances in exploring this technology using different types of semiconductor photocatalysts. The paper highlights effective plasmonic photocatalysts that have shown reduction activities towards CO2 with H2O. Although the technology is still at an embryonic stage, further studies are suggested to develop photocatalysts with high production rates and selectivity. The paper reviews the immense prospects and opportunities that exist in this technique. This article was authored by Samsung Nahar, MFM Zain, Abdul Amir H. Khatam, and others.