PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS POLYCRYSTALLINE TIO2 DISPERSIONS - THE INFLUENCE OF FE3+, FE2+ AND AG+ ON THE REACTION-RATE

被引：166

作者：

SCLAFANI, A

PALMISANO, L

DAVI, E

机构：

[1] Dipartimento di Ingegneria Chimica dei Processi e dei Materiali, Università di Palermo, 90128 Palermo, Vialle delle Scienze

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 1991年 / 56卷 / 01期

关键词：

D O I：

10.1016/1010-6030(91)80011-6

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：

The influence of Fe3+, Fe2+ and Ag+ on phenol photodegradation performed in aqueous polycrystalline TiO2 (anatase) and TiO2 (rutile) dispersions was investigated. These ions can react very easily with peroxo species produced on the catalyst surface and/or in the solution. Experimental conditions for the continuous photoproduction of Fenton reactive can be achieved in this way. Maximum photoactivity was observed for TiO2 (anatase) in the presence of oxygen and [Fe3+] = 5 x 10(-4) M. The behavior of Fe2+ was similar to Fe3+ for the same experimental conditions. Anatase photoactivity was beneficially influenced in the presence of oxygen and [Ag+] = 1 x 10(-4) M.

引用

页码：113 / 123

页数：11

共 49 条

[1] KINETIC-STUDIES IN HETEROGENEOUS PHOTOCATALYSIS .1. PHOTOCATALYTIC DEGRADATION OF CHLORINATED PHENOLS IN AERATED AQUEOUS-SOLUTIONS OVER TIO2 SUPPORTED ON A GLASS MATRIX [J].

ALEKABI, H ;

SERPONE, N .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (20) :5726-5731

[2]

ALSAYYED GH, 1988, 12 P IUPAC S PHOT BO, P126

[3] PHOTOCATALYTIC DEGRADATION OF PHENOL IN AQUEOUS TITANIUM-DIOXIDE DISPERSIONS [J].

AUGUGLIARO, V ;

PALMISANO, L ;

SCLAFANI, A ;

MINERO, C ;

PELIZZETTI, E .

TOXICOLOGICAL AND ENVIRONMENTAL CHEMISTRY, 1988, 16 (02) :89-109

[4]

AUGUGLIARO V, 1990, J APPL CATAL, V65, P101

[5]

AUGUGLIARO V, 1988, ENV CONTAMINATION, P206

[6] BEHAVIOR OF SURFACE PEROXO SPECIES IN THE PHOTOREACTIONS AT TIO2 - REPLY [J].

AUGUSTYNSKI, J ;

ULMANN, M .

JOURNAL OF PHYSICAL CHEMISTRY, 1988, 92 (07) :2076-2078

[7] PHOTOELECTROCHEMISTRY [J].

BARD, AJ .

SCIENCE, 1980, 207 (4427) :139-144

[8] PHOTOADSORPTION AND PHOTOCATALYSIS AT RUTILE SURFACES .1. PHOTOADSORPTION OF OXYGEN [J].

BICKLEY, RI ;

STONE, FS .

JOURNAL OF CATALYSIS, 1973, 31 (03) :389-397

[9] PHOTO-ADSORPTION AND PHOTO-CATALYSIS ON TITANIUM-DIOXIDE SURFACES - PHOTO-ADSORPTION OF OXYGEN AND PHOTOCATALYZED OXIDATION OF ISOPROPANOL [J].

BICKLEY, RI ;

JAYANTY, RKM .

FARADAY DISCUSSIONS, 1974, 58 :194-204

[10]

BICKLEY RI, 1978, SPECIALISTIC PERIODI, V7, P118

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