合成了5,10,15,20-四（2-噻吩基）卟啉（H2TTP）及它的钴铜锌三种金属卟啉,并用上述三种金属卟啉分别敏化锐钛矿型的二氧化钛,制备了CoTTP-TiO2,ZnTTP-TiO2,CuTTP-TiO2三种光催化剂,对这三种光催化剂进行了扫描电镜（SEM）、X射线光电子能谱（XPS）、紫外-可见漫反射光谱（UV-vis）、红外光谱（IR）的表征.在300 W汞灯和400 W金卤灯照射下,制备的光催化剂对4-硝基苯酚溶液的降解表现出比未修饰二氧化钛高的催化效率,光催化降解反应符合反应一级动力学方程.“,”meso-5,10,15,20-Tetrakis（2-thienyl） porphyrin（H2TTP） and its corresponding Co（II）,Cu（II）,Zn（II） metalloporphyrins were synthesized,then we used metalloporphyrins as photosensitizer,corresponding pohotocatalysts（CoTTP-TiO2,CuTTP-TiO2,ZnTTP-TiO2） were prepared and characterized by SEM,XPS,diffuse reflectance,FT-IR（KBr）.The photocatalytic activity of photocatalysts were investigated by the experiment of photodegradation of 4-nitrophenol（4-NP） in aqueous solution using 300 W high-pressure mercury lamp and 400 W metal halide lamp as light source respectively.These photocatalysts have higher photocatalytic activity compared with bare titanium dioxide,and the photocatalytic reaction accords with the first-order kinetic equation.