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
收藏
页码：64 / 76
页数：13
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