Photocatalytic decomposition of N2O on Ag-TiO2

被引：38
|
作者：
Koci, K. [1 ]
Krejcikova, S. [2 ]
Solcova, O. [2 ]
Obalova, L. [1 ]
机构：
[1] VSB Tech Univ Ostrava, Fac Met & Mat Engn, Ostrava 70833, Czech Republic
[2] Acad Sci Czech Republ, Inst Chem Proc Fundamentals, Vvi, CR-16502 Prague, Czech Republic
来源：
CATALYSIS TODAY | 2012年 / 191卷 / 01期
关键词：
N2O; Photocatalytic decomposition; Ag doping; TiO2; LOCAL STRUCTURES; CATALYSTS; IONS; REACTIVITIES; OXIDE; TIO2; N-2; REDUCTION; MONOXIDE; TITANIA;
D O I：
10.1016/j.cattod.2012.01.021
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Catalysts with various Ag loading (0.7-5.2 wt%) in the powder form were prepared by the sol-gel process controlled in the reverse micellar environment. X-ray diffraction (XRD), nitrogen adsorption measurement, UV-vis and elemental analysis were employed for characterization of catalysts. Effect of various silver loadings on photocatalytic activity of TiO2 catalysts in N2O photocatalytic decomposition was studied. Photocatalytic decomposition of N2O was performed in annular batch reactor illuminated with 8 W Hg lamp (254 nm wavelength). Reaction kinetic corresponds to first-order reaction rate which is in agreement with plausible reaction mechanisms. The highest N2O conversion of 77% after 24 h was reach over TiO2 modified by 3.4 wt% Ag. The Ag metal clusters could provoke a decrease in the electron-hole recombination rate. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：134 / 137
页数：4
相关论文
共 50 条
  • [21] Photocatalytic performance of plasmonic Au/Ag-TiO2 aerogel nanocomposites
    Sadrieyeh, Sima
    Malekfar, Rasoul
    JOURNAL OF NON-CRYSTALLINE SOLIDS, 2018, 489 : 33 - 39
  • [22] Decomposition of N2O by microwave discharge of N2O/He or N2O/Ar mixtures
    Tsuji, M
    Tanoue, T
    Kumagae, J
    Nakano, K
    JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2001, 40 (12): : 7091 - 7097
  • [23] Photocatalytic decomposition of N2O over TiO2/g-C3N4 photocatalysts heterojunction
    Koci, K.
    Reli, M.
    Troppova, I.
    Sihor, M.
    Kupkova, J.
    Kustrowski, P.
    Praus, P.
    APPLIED SURFACE SCIENCE, 2017, 396 : 1685 - 1695
  • [24] Characterization and photocatalytic activity in aqueous medium of TiO2 and Ag-TiO2 coatings on quartz
    Herrmann, JM
    Tahiri, H
    AitIchou, Y
    Lassaletta, G
    GonzalezElipe, AR
    Fernandez, A
    APPLIED CATALYSIS B-ENVIRONMENTAL, 1997, 13 (3-4) : 219 - 228
  • [25] Photocatalytic decolorization of methyl orange in aqueous medium of TiO2 and Ag-TiO2 immobilized on γ-Al2O3
    Chen, LC
    Tsai, FR
    Huang, CM
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2005, 170 (01) : 7 - 14
  • [26] Adsorption and photocatalytic degradation of human serum albumin on TiO2 and Ag-TiO2 films
    Ahmed, Mukhtar H.
    Keyes, Tia E.
    Byrne, John. A.
    Blackledge, Charles W.
    Hamilton, Jeremy W.
    JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2011, 222 (01) : 123 - 131
  • [27] Characterization and photocatalytic activity in aqueous medium of TiO2 and Ag-TiO2 coatings on quartz
    URA au CNRS Photocatalyse, Catalyse et Environnement, Ecole Centrale de Lyon, B.P. 163, 69131 Ecully Cedex, France
    不详
    不详
    APPL. CATAL. B ENVIRON., 3-4 (219-228):
  • [28] Novel Ag-TiO2/ZnFe2O4 Nanocomposites for Effective Photocatalytic, Electrocatalytic and Cytotoxicity Applications
    Suppuraj, P.
    Thirumalai, K.
    Parthiban, S.
    Swaminathan, M.
    Muthuvel, I.
    JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2020, 20 (02) : 709 - 718
  • [29] Catalytic Decomposition of N2O and NO
    Obalova, Lucie
    CATALYSTS, 2021, 11 (06)
  • [30] Catalytic decomposition of N2O
    Haber, J
    Machej, T
    Janas, J
    Nattich, M
    CATALYSIS TODAY, 2004, 90 (1-2) : 15 - 19
12345