Photocatalytic degradation of dyes using dioxygen activated by supported metallophthalocyanine under visible light irradiation

被引：9

作者：

Yao, Yuyuan ^{[1
]}

Huang, Zhenfu ^{[1
]}

Zheng, Binbin ^{[1
]}

Zhu, Shun ^{[1
]}

Lu, Wangyang ^{[1
]}

Chen, Wenxing ^{[1
]}

Chen, Haixiang ^{[1
]}

机构：

[1] Zhejiang Sci Tech Univ, Minist Educ, Key Lab Adv Text Mat & Mfg Technol, Hangzhou 310018, Zhejiang, Peoples R China

来源：

CURRENT APPLIED PHYSICS | 2013年 / 13卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Photocatalytic degradation; Catalytic fibers; Acid dyes; Visible light irradiation; Supported phthalocyanine; PHOTOCHEMICAL PROPERTIES; ZINC PHTHALOCYANINE; ORGANIC POLLUTANTS; MOLECULAR-OXYGEN; SILK FIBERS; WATER; OXIDATION; LIGANDS; SYSTEM;

D O I：

10.1016/j.cap.2013.07.006

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zinc tetraaminophthalocyanine (Zn-TAPc) modified by cyanuric chloride was immobilized on silk fibers by covalent bond to obtain a supported photocatalyst (Zn-TDTAPc-SF). The photocatalytic degradation of acid orange II based on Zn-TDTAPc-SF/O-2 system was investigated under visible light irradiation (lambda >= 400 nm). The results indicated that Zn-TDTAPc-SF exhibited excellent photocatalytic performance in the presence of O-2 under visible light irradiation. In 6 h, more than 93% of acid orange II (AO2) in Zn-TDTAPc-SF/O-2 system was eliminated at initial pH 5 under visible light irradiation, and Zn-TDTAPc-SF still remained effective in repetitive fives cycles. Furthermore, NaCl played a positive role in the catalytic reaction, different from the negative one observed in homogeneous catalysis, and the reaction can proceed in a more wide pH range from acidic to alkaline. Based on the analysis of FT-IR and Gas Chromatography/Mass Spectrometry (GCeMS), AO2 was mainly converted into some small molecular biodegradable aliphatic carboxylic compounds such as maleic acid, fumaric acid, succinic acid, etc. The photodegradation mechanism for the evolution of AO2 was proposed by Electron Paramagnetic Resonance (EPR) spectra. (C) 2013 Elsevier B. V. All rights reserved.

引用

页码：1738 / 1742

页数：5

共 27 条

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