Phenol destruction by photocatalysis on TiO2: an attempt to solve the reaction mechanism

被引：275

作者：

Sobczynski, A ^{[1
]}

Duczmal, L ^{[1
]}

Zmudzinski, W ^{[1
]}

机构：

[1] Poznan Univ Econ, Fac Commod Sci, PL-60967 Poznan, Poland

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2004年 / 213卷 / 02期

关键词：

photocatalysis; titania; phenol; kinetics; intermediates; mechanism;

D O I：

10.1016/j.molcata.2003.12.006

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：

Six hydroxylated aromatic compounds, p-benzoquinone and four aliphatic compounds were detected as intermediates of the reaction of phenol photocatalytic oxidation in the presence of illuminated TiO2. The concentration of catechol, hydroquinone and p-benzoquinone was determined quantitatively along with that of phenol in the course of the photoreaction. The reactions of TiO2-photooxidation of phenol and its primary intermediates-dihydroxybenzenes show 1st order behaviour. The use of initial reaction rates for kinetic studies is recommended because of many competitive reactions in illuminated suspensions of titanium dioxide. A possible mechanism of phenol full mineralisation is presented. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：225 / 230

页数：6

共 54 条

[1]

*AM PUBL HLTH ASS, 1992, STAND METH EX WAT WA, P6

[2] Direct acetylation followed by solid-phase disk extraction and GC-ITDMS for the determination of trace phenols in water [J].

Bao, ML ;

Pantani, F ;

Barbieri, K ;

Burrini, D ;

Griffini, O .

CHROMATOGRAPHIA, 1996, 42 (3-4) :227-233

[3]

BARBENI M, 1984, NOUV J CHIM, V8, P547

[4] PHOTOELECTROCHEMISTRY AND HETEROGENEOUS PHOTOCATALYSIS AT SEMICONDUCTORS [J].

BARD, AJ .

JOURNAL OF PHOTOCHEMISTRY, 1979, 10 (01) :59-75

[5] SEMICONDUCTOR PARTICLES AND ARRAYS FOR THE PHOTOELECTROCHEMICAL UTILIZATION OF SOLAR-ENERGY [J].

BARD, AJ .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1988, 92 (11) :1187-1194

[6] VISIBLE-LIGHT INDUCED WATER CLEAVAGE IN COLLOIDAL SOLUTIONS OF CHROMIUM-DOPED TITANIUM-DIOXIDE PARTICLES [J].

BORGARELLO, E ;

KIWI, J ;

GRATZEL, M ;

PELIZZETTI, E ;

VISCA, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1982, 104 (11) :2996-3002

[7] ELECTRON-PARAMAGNETIC RESONANCE STUDY OF PHOTOGENERATED RADICALS IN TITANIUM-DIOXIDE POWDER AND ITS AQUEOUS SUSPENSIONS [J].

BREZOVA, V ;

STASKO, A ;

LAPCIK, L .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 1991, 59 (01) :115-121

[8] TiO2 photocatalytic degradation of haloquinolines in water:: Aromatic products GM-MS identification.: Role of electron transfer and superoxide [J].

Cermenati, L ;

Albini, A ;

Pichat, P ;

Guillard, C .

RESEARCH ON CHEMICAL INTERMEDIATES, 2000, 26 (03) :221-234

[9] Photocatalyzed oxidation of alcohols and organochlorides in the presence of native TiO2 and metallized TiO2 suspensions.: Part (II):: Photocatalytic mechanisms [J].

Chen, J ;

Ollis, DF ;

Rulkens, WH ;

Bruning, H .

WATER RESEARCH, 1999, 33 (03) :669-676

[10] Kinetic processes of photocatalytic mineralization of alcohols on metallized titanium dioxide [J].

Chen, J ;

Ollis, DF ;

Rulkens, WH ;

Bruning, H .

WATER RESEARCH, 1999, 33 (05) :1173-1180

← 1 2 3 4 5 6 →