By tetrabutyl titanate as titanium source, the ammonium carbonate as the doping agent, used the sol-gel method to prepare titanium dioxide photocatalyst.

以钛酸四丁酯为钛源，碳酸铵为掺杂剂，采用溶胶-凝胶法制备了含氮的二氧化钛光催化剂。