China Nonferrous Metallurgy

In order to study the photocatalytic performance of industrial titanium dioxide composite materials, this paper used titanium dioxide as the matrix and successfully prepared Bi2O3titanium dioxide and Bi2O3titanium dioxide/PAC supported composites by hydrothermal/primary calcination method. The photocatalytic properties of titanium dioxide, Bi2O3titanium dioxide and Bi2O3titanium dioxide/PAC supported composites were studied. The results show that the adsorption effect of titanium dioxide on methyl orange is relatively limited, the removal efficiency is low, and the removal effect of photocatalytic oxidation reaction can reach 81.3%; when the molar ratio of Bi to Ti is 12%, Bi2O3titanium dioxide/PACsupported The composite material has the best photocatalytic degradation effect on methyl orange, up to 87.5%; in comparison, the adsorption effect and photocatalytic degradation effect of the three materials on methyl orange is the best is Bititanium dioxide/PAC, the adsorption rate is 41.3%, and the photocatalytic degradation efficiency is 89.7%.