Please wait a minute...
Acta Phys. Chim. Sin.  2007, Vol. 23 Issue (07): 978-982    DOI: 10.1016/S1872-1508(07)60052-7
Article     
Effect of Water Washing Treatment on the Photocatalytic Activity of Au/TiO2 Catalysts
TIAN Bao-Zhu; TONG Tian-Zhong; CHEN Feng; ZHANG Jin-Long
Laboratory for Advanced Materials, Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, P. R. China
Download:   PDF(475KB) Export: BibTeX | EndNote (RIS)      

Abstract  Using Au(S2O3)3-2 as the gold precursor, Au/TiO2 photocatalysts were prepared by water washing (W) and rotary evaporation (E) processes, respectively. The samples were characterized by UV-Vis diffuse reflectance spectroscopy (DRS), X-ray diffraction (XRD), transmission electron microscopy (TEM), and atomic absorption flame emission spectroscopy (AAS). The photocatalytic activity of the samples was evaluated from the analysis of the photodegradation of methyl orange. Using the water washing treatment, well dispersed gold nanoparticles with the diameter of 2 -5 nm were formed on the surface of TiO2, whereas only the gold coating was formed for rotary evaporation processes. The photocatalytic activity of Au/TiO2 photocatalysts is related to the preparation process. With a similar gold loading, the photocatalysts prepared by water washing showed higher photocatalytic activity compared to the catalysts prepared by rotary evaporation.

Key wordsAu/TiO2      Photocatalytic activity      Au loading      Water washing      Rotary evaporateion     
Received: 22 January 2007      Published: 08 May 2007
MSC2000:  O643  
Corresponding Authors: ZHANG Jin-Long     E-mail: jlzhang@ecust.edu.cn
Cite this article:

TIAN Bao-Zhu; TONG Tian-Zhong; CHEN Feng; ZHANG Jin-Long. Effect of Water Washing Treatment on the Photocatalytic Activity of Au/TiO2 Catalysts. Acta Phys. Chim. Sin., 2007, 23(07): 978-982.

URL:

http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/10.1016/S1872-1508(07)60052-7     OR     http://www.whxb.pku.edu.cn/Jwk_wk/wlhx/Y2007/V23/I07/978

[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] YU Chang-Lin, WEI Long-Fu, LI Jia-De, HE Hong-Bo, FANG Wen, ZHOU Wan-Qin. 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] YANG Qiu-Yun, ZHU Yuan, TIAN Li, PEI Yan, QIAO Ming-Hua, FAN Kang-Nian. Influence of Au/TiO2 Catalyst Preparation Parameters on the Selective Hydrogenation of Crotonaldehyde[J]. Acta Phys. Chim. Sin., 2009, 25(09): 1853-1860.
[14] 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.
[15] CAO Yong-Qiang, LONG Hui-Jin, CHEN Yong-Mei, CAO Ya-An. Photocatalytic Activity of TiO2 Films with Rutile/Anatase Mixed Crystal Structures[J]. Acta Phys. Chim. Sin., 2009, 25(06): 1088-1092.