Comparison of Ag deposition effects on the photocatalytic activity of nanoparticulate TiO2 under visible and UV light irradiation

被引：406
|
作者：
Sung-Suh, HM [1 ]
Choi, JR [1 ]
Hah, HJ [1 ]
Koo, SM [1 ]
Bae, YC [1 ]
机构：
[1] Hanyang Univ, Dept Chem Engn, Coll Engn, Seoul 133791, South Korea
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2004年 / 163卷 / 1-2期
关键词：
TiO2; Ag deposition; rhodamine B; charge separation; photodegradation; visible light;
D O I：
10.1016/S1010-6030(03)00428-3
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We investigated the photocatalytic degradation of rhodamine B (RB) dye in the aqueous suspensions of TiO2, (similar to17 nm) and Ag-deposited TiO2 nanoparticles under visible and UV light irradiation in order to evaluate and distinguish various effects of the Ag deposition on the TiO2 photocatalytic activity. The TiO2 and Ag-TiO2 photocatalysts were characterized by XRD, TEM, XPS, UV-visible absorption and photon correlation spectroscopy. For comparison, the RB photodegradation was carried out in Degussa P25 TiO2, and Ag-deposited P25 suspensions under the same condition. In the RB/Ag-TiO2 system, Ag deposits significantly enhanced the RB photodegradation under visible light irradiation whereas the RB photodegradation under UV irradiation was slightly enhanced. The significant enhancement in the Ag-TiO2 photoactivity under visible light irradiation can be ascribed to simultaneous effects of Ag deposits by both acting as electron traps and enhancing the RB adsorption on the Ag-TiO2 surface. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：37 / 44
页数：8
相关论文
共 50 条
  • [31] Enhanced photocatalytic activity of graphene oxide decorated on TiO2 films under UV and visible irradiation
    Yoo, Dae-Hwang
    Tran Viet Cuong
    Pham, Viet Hung
    Chung, Jin Suk
    Khoa, Nguyen Tri
    Kim, Eui Jung
    Hahn, Sung Hong
    CURRENT APPLIED PHYSICS, 2011, 11 (03) : 805 - 808
  • [32] TiO2/Au/TiO2 plasmonic photocatalyst with enhanced photocatalytic activity and stability under visible-light irradiation
    Wang, Kunlei
    Yoshiiri, Kenta
    Rosa, Lorenzo
    Wei, Zhishun
    Juodkazis, Saulius
    Ohtani, Bunsho
    Kowalska, Ewa
    CATALYSIS TODAY, 2022, 397 : 257 - 264
  • [33] Preparation and visible light photocatalytic activity of Ag/TiO2/graphene nanocomposite
    Wen, Yanyuan
    Ding, Hanming
    Shan, Yongkui
    NANOSCALE, 2011, 3 (10) : 4411 - 4417
  • [34] Photocatalytic Performance of TiO2 Particles in Degradation of Various Organic Dyes Under Visible and UV Light Irradiation
    Le, A. T.
    Pung, S. Y.
    Chiam, S. L.
    Josoh, N. A. H. Bt. N.
    Koay, T. Y.
    Lee, J. S.
    Mustar, N. B.
    3RD INTERNATIONAL POSTGRADUATE CONFERENCE ON MATERIALS, MINERALS & POLYMER (MAMIP) 2019, 2020, 2267
  • [35] TiO2 Nanoparticles with High Photocatalytic Activity Under Visible Light
    Magdalena Janus
    Beata Tryba
    Ewelina Kusiak
    Tomoki Tsumura
    Masahiro Toyoda
    Michio Inagaki
    Antoni W. Morawski
    Catalysis Letters, 2009, 128 : 36 - 39
  • [36] TiO2 Nanoparticles with High Photocatalytic Activity Under Visible Light
    Janus, Magdalena
    Tryba, Beata
    Kusiak, Ewelina
    Tsumura, Tomoki
    Toyoda, Masahiro
    Inagaki, Michio
    Morawski, Antoni W.
    CATALYSIS LETTERS, 2009, 128 (1-2) : 36 - 39
  • [37] Synthesis and photocatalytic performance of TiO2 nanospheres-graphene nanocomposite under visible and UV light irradiation
    Wojtoniszak, Malgorzata
    Zielinska, Beata
    Chen, Xuecheng
    Kalenczuk, Ryszard J.
    Borowiak-Palen, Ewa
    JOURNAL OF MATERIALS SCIENCE, 2012, 47 (07) : 3185 - 3190
  • [38] Bio-mimicking TiO2 architectures for enhanced photocatalytic activity under UV and visible light
    Hashemizadeh, Iman
    Tsang, Daniel C. W.
    Ng, Yun Hau
    Wu, Zhijie
    Golovko, Vladimir
    Yip, Alex C. K.
    RSC ADVANCES, 2017, 7 (62) : 39098 - 39108
  • [39] The impact of Carbon Quantum Dots (CQDs) on the photocatalytic activity of TiO2 under UV and visible light
    Mozdbar, Afsaneh
    Nouralishahi, Amideddin
    Fatemi, Shohreh
    Talatori, Fatemeh Sadat
    JOURNAL OF WATER PROCESS ENGINEERING, 2023, 51
  • [40] La-doped TiO2 hollow fibers and their photocatalytic activity under UV and visible light
    Yao, Shuhua
    Jia, Xueying
    Jiao, Lulu
    Zhu, Chuang
    Shi, Zhongliang
    INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 2012, 51 (08): : 1049 - 1056
12345