Please wait a minute...
Acta Phys. -Chim. Sin.  2009, Vol. 25 Issue (06): 1088-1092    DOI: 10.3866/PKU.WHXB20090619
Photocatalytic Activity of TiO2 Films with Rutile/Anatase Mixed Crystal Structures
CAO Yong-Qiang, LONG Hui-Jin, CHEN Yong-Mei, CAO Ya-An
Teda Applied Physics School, Nankai University, Tianjin 300457, P. R. China|College of Physics Science, Nankai University, Tianjin 300071, P. R. China|School of Science, Beijing University of Chemical Technology, Beijing 100029, P. R. China
Download:   PDF(1156KB) Export: BibTeX | EndNote (RIS)      


A group of nano-TiO2 film catalysts with rutile/anatase mixed crystal structures were prepared by a magnetron sputtering method. The photodegradation of phenol was employed to evaluate the photocatalytic activities of the filmcatalysts.With less rutile content in the catalysts, photocatalytic activities improved gradually. Filmproperties were investigated using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), surface photovoltage spectroscopy (SPS) and atomic force microscopy (AFM). Results indicate that all films have a rutile/anatase mixed crystal structure. With less rutile content the amount of hydroxyl groups (OH) and bridging oxygen atoms (—O—) on the surfaces of catalysts increase gradually and the Fermi levels gradually shift upwards as well. Surface species including hydroxyl groups and bridging oxygen atoms are advantageous for the photocatalytic reaction. Furthermore, because of the shifting of the Fermi level, the surface band bending of TiO2 at the interface of TiO2/H2O is enhanced leading to an increase in the charge carrier separation and an improvement in the photocatalytic activity.

Key wordsMagnetron sputtering method      TiO2 filmcatalyst      Rutile/anatase mixed crystal structure      Photocatalytic activity     
Received: 18 January 2009      Published: 06 April 2009
MSC2000:  O643  
Corresponding Authors: CAO Ya-An     E-mail:
Cite this article:

CAO Yong-Qiang, LONG Hui-Jin, CHEN Yong-Mei, CAO Ya-An. Photocatalytic Activity of TiO2 Films with Rutile/Anatase Mixed Crystal Structures. Acta Phys. -Chim. Sin., 2009, 25(06): 1088-1092.

URL:     OR

[1] LI Xian-Hua, ZHANG Lei-Gang, WANG Xue-Xue, YU Qing-Bo. PANI/g-C3N4 Composites Synthesized by Interfacial Polymerization and Their Thermal Stability and Photocatalytic Activity[J]. Acta Phys. -Chim. Sin., 2015, 31(4): 764-770.
[2] Chang-Lin. YU,Long-Fu. WEI,Jia-De. LI,Hong-Bo. HE,Wen. FANG,Wan-Qin. ZHOU. Preparation and Characterization of GO/Ag3PO4 Composite Photocatalyst and Its Visible Light Photocatalytic Performance[J]. Acta Phys. -Chim. Sin., 2015, 31(10): 1932-1938.
[3] LIN Cai-Fang, CHEN Xiao-Ping, CHEN Shu, SHANGGUAN Wen-Feng. Preparation of NiS-Modified Cd1-xZnxS by a Hydrothermal Method and Its Use for the Efficient Photocatalytic H2 Evolution[J]. Acta Phys. -Chim. Sin., 2015, 31(1): 153-158.
[4] ZHAO Wei-Rong, SHI Qiao-Meng, LIU Ying. Performance, Deactivation and Regeneration of SnO2/TiO2 Nanotube Composite Photocatalysts[J]. Acta Phys. -Chim. Sin., 2014, 30(7): 1318-1324.
[5] FU Ping-Feng, ZHANG Peng-Yi. Low-Temperature Electrostatic Self-Assembly of Noble Metals on TiO2 Nanostructured Films with Enhanced Photocatalytic Activity[J]. Acta Phys. -Chim. Sin., 2014, 30(5): 965-972.
[6] WANG Jing-Sheng, WANG En-Jun, YU Yan-Long, GUO Li-Mei, CAO Ya-An. Visible Light Photocatalytic Activity of an In-Doped TiO2 Thin Film with a Three-Dimensional Ordered Structure[J]. Acta Phys. -Chim. Sin., 2014, 30(3): 513-519.
[7] LIN Xue, GUO Xiao-Yu, WANG Qing-Wei, CHANG Li-Min, ZHAI Hong-Ju. Hydrothermal Synthesis and Efficient Visible Light Photocatalytic Activity of Bi2MoO6/BiVO4 Heterojunction[J]. Acta Phys. -Chim. Sin., 2014, 30(11): 2113-2120.
[8] GUO Li-Mei KUANG Yuan-Jiang YANG Xiao-Dan YU Yan-Long YAO Jiang-Hong CAO Ya-An. Investigation on Photocatalytic Reduction of CO2into CH4 Using SrB2O4/SrCO3Composite Catalyst[J]. Acta Phys. -Chim. Sin., 2013, 29(07): 1558-1565.
[9] GUO Li-Mei, KUANG Yuan-Jiang, YANG Xiao-Dan, YU Yan-Long, YAO Jiang-Hong, CAO Ya-An. Photocatalytic Reduction of CO2 into CH4 Using SrB2O4 Catalyst[J]. Acta Phys. -Chim. Sin., 2013, 29(02): 397-402.
[10] CHEN Jin-Yi, LI Nian, LI Jing, ZHU Liang, PENG Chang-Jun. Synthesis and Visible Light Photocatalytic Activity of Cross-Linked Sodium Rectorite/Cu2O Nanocomposites[J]. Acta Phys. -Chim. Sin., 2011, 27(04): 932-938.
[11] ZHANG Xiao-Ru, LIN Yan-Hong, ZHANG Jian-Fu, HE Dong-Qing, WANG De-Jun. Photoinduced Charge Carrier Properties and Photocatalytic Activity of N-Doped TiO2 Nanocatalysts[J]. Acta Phys. -Chim. Sin., 2010, 26(10): 2733-2738.
[12] WANG Meng-Ye, WANG Cheng-Lin, XIE Kun-Peng, SUN Lan, LIN Chang-Jian. Fabrication of a Spongelike Nanostructured TiO2 Filmand Its Photocatalytic Activity[J]. Acta Phys. -Chim. Sin., 2009, 25(12): 2475-2480.
[13] LI Chang-Yu, LIU Shou-Xin, MA Yue. Preparation of Visible-Light Response Cu-Cu2+1O Composites by a One-Step Hydrothermal Method[J]. Acta Phys. -Chim. Sin., 2009, 25(08): 1555-1560.
[14] CHEN Qi-Yuan; TONG Hai-Xia; YIN Zhou-Lan; HU Hui-Ping; LI Jie; LIU Liang-Liang. Preparation, Characterization and Photo-catalytic Behavior of TiO2 Catalysts with Oxygen Vacancies[J]. Acta Phys. -Chim. Sin., 2007, 23(12): 1917-1921.
[15] YAN Zhi-Ying; WU Li-Yan; SUN Gui-Xiang; ZHANG Ning; ZHENG Wen-Jun. Structural Characterization of Nanocrystalline TiO2 fromIonic Liquid-Water Solvent Mixture and Its Photocatalytic Activity[J]. Acta Phys. -Chim. Sin., 2007, 23(07): 1032-1036.