Abstract:【Objective】To improve selective degradation ability of catalyst (TiO2)under visible light. 【Method】Salicylic acid molecularly imprinted and N-doped TiO2powders were synthesized by an improved molecularly imprinted sol-gel technique using urea as a nitrogen (N) source and salicylic acid as a template molecule. The samples were characterized by XRD, TEM, UV-Vis diffuse reflectance spectrophotometer and N2 adsorption-desorption.【Result】All samples were anatase.The red-shift of absorption band was caused by doping nitrogen to TiO2 The better-developed pore structure and pass were due to molecular imprinting technique, and the enlarged specific surface area was generated by N-doping and molecularly imprinting. Compared to benzoic acid and methyl orange, TiO2 selective photodegradation rate of salicylic acid (96.0%) was higher under visible light using molecularly imprinting and N-doping.【Conclusion】The selectivity and visible-light photoactivity of TiO2 can be effectively improved using salicylic acid molecularly imprinting and N-doping.