The atmospheric concentration of CO2 has been reported to increase each year by about 2 ppm[1].The significant rise in atmospheric CO2 levels resulting from the combustion of fuels is one of the primary causes of global warming problems [2].The reduction and fixation of CO2 to organic compounds has been regarded as an important research area for solving the global warming and depletion of fossil fuels problems [3].Recently, the photocatalytic reduction of CO2 to organic compounds is one of the most important research areas, due to the reasons of the non-toxic chemical reaction and solving many urgent global environmental problems.Many investigations have been directed at exploring the preparations of low-cost and highly efficient photocatalysts for the reduction of CO2 under visible light.