Abstract
Apart from the industrial production of carbon dioxide (CO
2
), large amounts of CO
2
emissions are associated with increased fossil fuel consumption. Photoreduction of CO
2
into hydrocarbon fuels such as methane and methanol is a promising method to convert CO
2
as fuel feedstock using the advantage of solar energy. There are several methods and nanomaterials used for the photoreduction of CO
2
. Efficient nanostructured catalysts are used for CO
2
photoreduction. This review discusses the CO
2
photoreduction possible strategies to enhance photoreduction efficiency and the photocatalytic systems (homogenous and heterogeneous catalysts) for CO
2
reduction.