Based on employing the titanium tetrachloride and hexadecyl trimethyl ammonium bromide as inorganic titanium source and template agent, respectively, an inorganic titanium precursor solution was prepared by hydrothermal method. Mesoporous titania/conductive carbon felt electrode material(MPT/CCF) was obtained by the dip-coating method with the aid of ultrasonic system with CCF as a carrier. The material was characterized by X-ray diffraction(XRD), Raman spectrometry, X-ray photoelectron spectroscopy(XPS), scanning electron microscopy(SEM), transmission electronic microscopy(TEM), Fourier transform infrared spectroscopy(FTIR) and nitrogen adsorption-desorption. By using benzaldehyde gas as the target degradation product, the photoelectrocatalytic performance of MPT/CCF was discussed under ultraviolet light irradiation. And the effects of the catalytic degradation conditions(temperature, humidity, bias voltage) on synergies mechanism were discussed. The results show that the MPT/CCF have smaller particle size, larger specific surface area and uniform pore size distribution in comparsion to pure MPT, due to the inhibitory effect of CCF on grain growth. In addition, 2-MPT/CCF-500 have the highest photoelectrocatalytic activity due to perfect crystal shape, homogeneous mesoporous structure and high concentrations of hydroxyl radicals. Furthermore, it also has the very high photoelectric catalytic activity in the process of repeated use. The optimum catalytic condition is 55% of humidity and 10 V of bias voltage at 35 ℃.
