Silver-decorated titanium dioxide nanotube arrays with improved photocatalytic activity for visible light irradiation

被引：11
作者：
Chen, Kansong [1 ]
Feng, Xinran
Tian, Han
Li, Yang
Xie, Kun
Hu, Rui
Cai, Yaxuan
Gu, Haoshuang
机构：
[1] Hubei Univ, Fac Comp Sci & Informat Engn, Wuhan 430062, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH | 2014年 / 29卷 / 11期
基金：
中国国家自然科学基金;
关键词：
SENSITIZED SOLAR-CELLS; HYDROGEN GENERATION; GOLD NANOPARTICLES; TIO2; NANOCRYSTALS; THIN-FILMS; NANOSTRUCTURES; ENHANCEMENT; MECHANISM; ENERGY;
D O I：
10.1557/jmr.2014.116
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Silver-decorated titanium dioxide (Ag/TiO2) nanotube (NT) arrays were successfully prepared using a two-step synthesis route comprised of an anodic oxidation procedure followed by photochemical reduction using ultraviolet irradiation. The resulting Ag/TiO2 NT arrays were characterized using scanning electron microscopy, transmission electron microscopy, x-ray diffraction, and UV-vis diffusion reflectance spectrometry. The characterization results indicated that the silver decoration significantly enhanced the light absorption capability of the TiO2 NT arrays in the visible spectral range. The visible light photocatalytic activity of the subject NT arrays was investigated. The experimental results showed the photocatalytic activity of silver-decorated titanium dioxide Ag/TiO2 NT arrays to be dependent on the size of the silver particles. The improved visible light absorption can be attributed to plasmonic effects induced by particle size phenomenon. The Ag/TiO2 NT arrays exhibit promising application for photocatalytic degradation of dye solutions and pollutants in water using visible irradiation.
引用
收藏
页码：1302 / 1308
页数：7
相关论文
共 31 条
  • [1] Enhanced Field Emission Properties of Electrochemically Synthesized Self-Aligned Nitrogen-Doped TiO2 Nanotube Array Thin Films
    Antony, Rajini P.
    Mathews, Tom
    Panda, Kalpataru
    Sundaravel, B.
    Dash, S.
    Tyagi, A. K.
    [J]. JOURNAL OF PHYSICAL CHEMISTRY C, 2012, 116 (31) : 16740 - 16746
  • [2] Visible-light photocatalysis in nitrogen-doped titanium oxides
    Asahi, R
    Morikawa, T
    Ohwaki, T
    Aoki, K
    Taga, Y
    [J]. SCIENCE, 2001, 293 (5528) : 269 - 271
  • [3] Atwater HA, 2010, NAT MATER, V9, P205, DOI [10.1038/nmat2629, 10.1038/NMAT2629]
  • [4] Self-Assembled TiO2 Nanospheres By Using a Biopolymer as a Template and Its Optoelectronic Application
    Dutta, Saikat
    Patra, Astam K.
    De, Sudipta
    Bhaumik, Asim
    Saha, Basudeb
    [J]. ACS APPLIED MATERIALS & INTERFACES, 2012, 4 (03) : 1560 - 1564
  • [5] Synthesis and characterization of Nb, F-codoped titania nanoparticles for dye-sensitized solar cells
    Gao, Mingqi
    Xu, Youlong
    Bai, Yang
    Jin, Shaohua
    [J]. JOURNAL OF MATERIALS RESEARCH, 2014, 29 (02) : 230 - 238
  • [6] Enhancement of stability of N-doped TiO2 photocatalysts with Ag loading
    Gao, Yuanpeng
    Fang, Pengfei
    Chen, Feitai
    Liu, Yang
    Liu, Zhi
    Wang, Dahai
    Dai, Yiqun
    [J]. APPLIED SURFACE SCIENCE, 2013, 265 : 796 - 801
  • [7] Titanium oxide nanotube arrays prepared by anodic oxidation
    Gong, D
    Grimes, CA
    Varghese, OK
    Hu, WC
    Singh, RS
    Chen, Z
    Dickey, EC
    [J]. JOURNAL OF MATERIALS RESEARCH, 2001, 16 (12) : 3331 - 3334
  • [8] An Integrated Power Pack of Dye-Sensitized Solar Cell and Li Battery Based on Double-Sided TiO2 Nanotube Arrays
    Guo, Wenxi
    Xue, Xinyu
    Wang, Sihong
    Lin, Changjian
    Wang, Zhong Lin
    [J]. NANO LETTERS, 2012, 12 (05) : 2520 - 2523
  • [9] Role of Hydroxyl Radicals and Mechanism of Escherichia coli Inactivation on Ag/AgBr/TiO2 Nanotube Array Electrode under Visible Light Irradiation
    Hou, Yang
    Li, Xinyong
    Zhao, Qidong
    Chen, Guohua
    Raston, Colin L.
    [J]. ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2012, 46 (07) : 4042 - 4050
  • [10] Calculated absorption and scattering properties of gold nanoparticles of different size, shape, and composition: Applications in biological imaging and biomedicine
    Jain, PK
    Lee, KS
    El-Sayed, IH
    El-Sayed, MA
    [J]. JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (14) : 7238 - 7248
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