Effects of Silver on the Photocatalytic Degradation of Gaseous Isopropanol

被引：17

作者：

Ma, Chih-Ming ^{[2
]}

Ku, Young ^{[1
]}

Kuo, Yu-Lin ^{[3
]}

Chou, Yiang-Chen ^{[1
]}

Jeng, Fu-Tien ^{[4
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Chem Engn, Taipei 106, Taiwan

[2] St Marys Med Nursing & Management Coll, Dept Cosmet Applicat & Management, San Shing Shiang 266, Yi Lan, Taiwan

[3] Tatung Univ, Dept Mat Engn, Taipei 104, Taiwan

[4] Natl Taiwan Univ, Grad Inst Environm Engn, Taipei 106, Taiwan

来源：

WATER AIR AND SOIL POLLUTION | 2009年 / 197卷 / 1-4期

关键词：

Photocatalysis; Silver; Titanium dioxide; Isopropanol; TIO2; CATALYST; TOLUENE; PHOTODEGRADATION; PHOTOOXIDATION; DECOMPOSITION; ENHANCEMENT; PERFORMANCE; DEPOSITION; EFFICIENCY;

D O I：

10.1007/s11270-008-9813-x

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The decomposition of gaseous isopropanol (IPA) by UV/TiO2 process in an annular photoreactor was studied under various conditions such as UV light intensity and inlet IPA concentrations. In order to impede the rapid electron/hole recombination during photoreaction, the Ag deposited on TiO2 photocatalysts were prepared by a photodeposition process. This study was aimed at applying the photocatalytic oxidation using the Ag/TiO2 and pure TiO2 catalysts to remove gaseous IPA. The PL analyses indicated that the silver on the surface of TiO2 could inhibit the electron/holes recombination. For experiments conducted with gaseous IPA under UV light irradiation, the photocatalytic activity of Ag deposited TiO2 surface was significantly superior to that of TiO2 only ones.

引用

页码：313 / 321

页数：9

共 22 条

[1] Formaldehyde removal from air via a rotating adsorbent combined with a photocatalyst reactor: Kinetic modeling [J].

Chin, P ;

Yang, LP ;

Ollis, DF .

JOURNAL OF CATALYSIS, 2006, 237 (01) :29-37

[2] Effects of Ag and Pt on photocatalytic degradation of endocrine disrupting chemicals in water [J].

Coleman, HM ;

Chiang, K ;

Amal, R .

CHEMICAL ENGINEERING JOURNAL, 2005, 113 (01) :65-72

[3] The surface science of titanium dioxide [J].

Diebold, U .

SURFACE SCIENCE REPORTS, 2003, 48 (5-8) :53-229

[4] Kinetics of photocatalytic VOCs abatement in a standardized reactor [J].

Doucet, N. ;

Bocquillon, F. ;

Zahraa, O. ;

Bouchy, M. .

CHEMOSPHERE, 2006, 65 (07) :1188-1196

[5] Improvement of catalyst durability by deposition of Rh on TiO2 in photooxidation of aromatic compounds [J].

Einaga, H ;

Ibusuki, T ;

Futamura, S .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2004, 38 (01) :285-289

[6] Review of photoluminescence performance of nano-sized semiconductor materials and its relationships with photocatalytic activity [J].

Jing Liqiang ;

Qu Yichun ;

Wang Baiqi ;

Li Shudan ;

Jiang Baojiang ;

Yang Libin ;

Fu Wei ;

Fu Honggang ;

Sun Jiazhong .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2006, 90 (12) :1773-1787

[7] Photocatalytic degradation of gaseous sulfur compounds by silver-deposited titanium dioxide [J].

Kato, S ;

Hirano, Y ;

Iwata, M ;

Sano, T ;

Takeuchi, K ;

Matsuzawa, S .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2005, 57 (02) :109-115

[8] Decomposition of gaseous trichloroethylene in a photoreactor with TiO2-coated nonwoven fiber textile [J].

Ku, Y ;

Ma, CM ;

Shen, YS .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 34 (03) :181-190

[9] The enhancement of photodegradation efficiency using Pt-TiO2 catalyst [J].

Li, FB ;

Li, XZ .

CHEMOSPHERE, 2002, 48 (10) :1103-1111

[10] A mechanism for enhanced photocatalytic activity of silver-loaded titanium dioxide [J].

Liu, SX ;

Qu, ZP ;

Han, XW ;

Sun, CL .

CATALYSIS TODAY, 2004, 93-5 :877-884

← 1 2 3 →