Surface modification of silica-coated gadolinium oxide nanoparticles with zinc tetracarboxyphenoxy phthalocyanine for the photodegradation of Orange G

被引：21

作者：

Ledwaba, Mpho ^{[1
]}

Masilela, Nkosiphile ^{[1
]}

Nyokong, Tebello ^{[1
]}

Antunes, Edith ^{[1
]}

机构：

[1] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa

来源：

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL | 2015年 / 403卷

基金：

新加坡国家研究基金会;

关键词：

Gd2O3; nanoparticles; Zinc tetracarboxyphenoxy phthalocyanine; Photodegradation; Azo dye; PHOTOPHYSICAL PROPERTIES; CARBON NANOTUBES; DEGRADATION; GOLD; PHENOLS;

D O I：

10.1016/j.molcata.2015.03.023

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：

Zinc tetracarboxyphenoxy phthalocyanine was covalently linked to Gd2O3 nanoparticles for the photocatalytic degradation of Orange G. Characterization of the composite was carried out Using XRD, TEM, XPS, UV-vis spectroscopy and FT-IR spectroscopy. The composite showed improved photophysical properties over the phthalocyanine alone and the catalyst was found to be reusable. Analyses of the photodegradation rates of the azo dye indicated pseudo first-order kinetics. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：64 / 76

页数：13

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