【正文】
e modified with Sidoped TiO2 for water purification[J].Journal of Membrane Science,2009,335: 58–67.[32] 楊芬,陳秋萍,[J].應(yīng)用化工,2014,43(2):258–260.[33] Wang ZQ,Liu X,Li WQ,Wang HY,Li HX, Enhancing the photocatalytic degradation of salicylic acid by using molecular imprinted Sdoped TiO2 under simulated solar light[J]. Ceramics International,2014,40:8863–8867.[34] Nazeeruddin MK,Zakeeruddin SM,HumphryBaker R,Jirousek M,Liska P,Vlachopoulos N,Shklover V,Fischer CH,Gratzel M,Acidbase equilibria of (2,239。bipyridyl4,439。dicarboxylic acid) ruthenium(II)plexes and the effect of protonation on chargetransfer sensitization of nanocrystalline titania[J].Inorg. Chem. ,1999,38:6298–6305.[35] 呂向菲,李珺,[J].高等學(xué)?;瘜W(xué)學(xué)報(bào),2010,31(7):1391–1397.[36] Huang C,Lv Y,Zhou Q,Kang SZ,Li XQ,Mu J,Visible photocatalytic activity and photoelectrochemical behavior of TiO2 nanoparticles modified with metal porphyrins containing hydroxyl group[J].Ceramics International,2014,40: 7093–7098.[37] Li ZY,Fang YL,Zhan XQ,Xu S, Facile preparation of squarylium dye sensitized TiO2 nanoparticles and their enhanced visiblelight photocatalytic activity[J]. Journal of Alloys and Compounds,2013,564:138–142.[38] Park EJ,Jeong B,Jeong MG,Kim YD,Synergetic effects of hydrophilic surface modification and Ndoping for visible light response on photocatalytic activity of TiO2[J].Current Applied Physics, 2014,14:300–305.[39] Dashora A, Patel N, Kothari DC, Ahuja BL, Miotello A, Formation of an intermediate band in the energy gap of TiO2 by Cu–Ncodoping: First principles study and experimental evidence[J].Solar Energy Materials and Solar Cells,2014,125:120–126.[40] Hossaini Hiwa,Moussavi Gholamreza,Farrokhi Mehrdad,The investigation of the LEDactivated FeFNSTiO2 nanocatalyst for photocatalytic degradation and mineralization of organophosphate pesticides in water[J].Water Research,2014,59:130–144.The Modification of TiO2 and Its Photocatalytic Mechanism Zhuang Hou, Chen Li, Minchi Li, Xinni Zhang and Youqiang Chen (College of Physics Science, Qingdao University, Qingdao 266071, China)Abstract: The principle of the photocatalytic degradation of organic molecules using titanium dioxide is analyzed. The factors affecting the TiO2 photocatalytic efficiency and recent developments in various photocatalytic methods and relating mechanisms for improving the photocatalytic efficiency of titanium dioxide are summarized.Key words: TiO2。 Photocatalysis。 Modification