Molecular structure effects in photodegradation of phenol and its chlorinated derivatives with phthalocyanines

被引：36

作者：

Kluson, P. ^{[1
]}

Drobek, M. ^{[1
]}

Krejcikova, S. ^{[1
]}

Krysa, J. ^{[1
]}

Kalaji, A. ^{[2
]}

Cajthaml, T. ^{[3
]}

Rakusan, J. ^{[4
]}

机构：

[1] Inst Chem Technol, CR-16628 Prague 6, Czech Republic

[2] Univ Southampton, Sch Chem, Southampton SO17 1BJ, Hants, England

[3] Acad Sci Czech Republic, Inst Microbiol, CR-14220 Prague 4, Czech Republic

[4] Res Inst Organ Synth, CS-53218 Pardubice, Czech Republic

来源：

APPLIED CATALYSIS B-ENVIRONMENTAL | 2008年 / 80卷 / 3-4期

关键词：

phthalocyanines; phenol; chlorophenols; photodegradation; singlet oxygen;

D O I：

10.1016/j.apcatb.2007.11.025

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：

In this work we report on possible utilisation of sulphonated phthalocyanines as efficient oxidation catalysts for the removal of various traces of chlorinated compounds from an aquatic environment. Photocatalytic oxidations were carried out with visible and ultraviolet light in agreement with location of their distinctive absorption bands in both these regions. The reaction rate of decomposition of the substrate was measured as a function of pH. Special attention was paid to describe aggregation of the photocatalyst resulting in significant decreasing of the photooxidation activity. Suppression of this undesirable phenomenon by addition of some alcohol to the reaction mixture was studied in detail. Photocatalytic efficiency was verified according to calculated quantum yields. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：321 / 326

页数：6

共 40 条

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