Electro-Fenton degradation of cellulose using graphite/PTFE electrodes modified by 2-ethylanthraquinone

被引：39

作者：

Wang, Zhong-Xu ^{[1
]}

Li, Gang ^{[1
]}

Yang, Fang ^{[1
]}

Chen, Yu-Lu ^{[1
]}

Gao, Peng ^{[1
]}

机构：

[1] Hebei Univ Technol, Sch Chem Engn & Technol, Tianjin 300130, Peoples R China

来源：

CARBOHYDRATE POLYMERS | 2011年 / 86卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Cellulose degradation; Hydrogen peroxide; Electro-Fenton; 2-Ethylanthraquinone modified carbon electrode; GAS-DIFFUSION ELECTRODE; CARBON FELT CATHODE; HYDROGEN-PEROXIDE; ELECTROCHEMICAL GENERATION; ACIDIC-SOLUTIONS; OXYGEN; ELECTROSYNTHESIS; REDUCTION; ORGANICS; REMOVAL;

D O I：

10.1016/j.carbpol.2011.07.021

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This paper reports an investigation on the degradation of cellulose via electro-Fenton method. The electrodes chosen were graphite/PTFE electrodes modified by 2-ethylanthraquinone (EAQ). The presence of EAQ greatly improved the rate of hydrogen peroxide formation on air-fed graphite/PTFE electrodes, which was determined by a UV spectroscopic method using molybdate as the color agent. Hydrogen peroxide can react with Fe(2+) to form hydroxyl radicals in an acidic medium, which accelerates cellulose degradation by cleaving the glycosidic bonds between glucose units. The degradation products of the cellulose contain soluble sugar and 5-HMF, which were fully characterized by (1)H NMR and (13)C NMR. (C) 2011 Elsevier Ltd. All rights reserved.

引用

页码：1807 / 1813

页数：7

共 28 条

[1] The removal of low level organics via hydrogen peroxide formed in a reticulated vitreous carbon cathode cell, Part 1. The electrosynthesis of hydrogen peroxide in aqueous acidic solutions [J].

Alvarez-Gallegos, A ;

Pletcher, D .

ELECTROCHIMICA ACTA, 1998, 44 (05) :853-861

[2] A small-scale flow alkaline fuel cell for on-site production of hydrogen peroxide [J].

Brillas, E ;

Alcaide, F ;

Cabot, PL .

ELECTROCHIMICA ACTA, 2002, 48 (04) :331-340

[3] Rapid determination of hydrogen peroxide in the wood pulp bleaching streams by a dual-wavelength spectroscopic method [J].

Chai, XS ;

Hou, QX ;

Luo, Q ;

Zhu, JY .

ANALYTICA CHIMICA ACTA, 2004, 507 (02) :281-284

[4] A COLORIMETRIC METHOD FOR THE DETERMINATION OF SUGARS [J].

DUBOIS, M ;

GILLES, K ;

HAMILTON, JK ;

REBERS, PA ;

SMITH, F .

NATURE, 1951, 168 (4265) :167-167

[5] Electrochemical synthesis of hydrogen peroxide on oxygen-fed graphite/PTFE electrodes modified by 2-ethylanthraquinone [J].

Forti, J. C. ;

Rocha, R. S. ;

Lanza, M. R. V. ;

Bertazzoli, R. .

JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2007, 601 (1-2) :63-67

[6] A small-scale pilot plant using an oxygen-reducing gas-diffusion electrode for hydrogen peroxide electrosynthesis [J].

Giomo, M. ;

Buso, A. ;

Fier, P. ;

Sandona, G. ;

Boye, B. ;

Farnia, G. .

ELECTROCHIMICA ACTA, 2008, 54 (02) :808-815

[7] Electrosynthesis of hydrogen peroxide via the reduction of oxygen assisted by power ultrasound [J].

Gonzalez-Garcia, Jose ;

Banks, Craig E. ;

Sljukic, Biljana ;

Compton, Richard G. .

ULTRASONICS SONOCHEMISTRY, 2007, 14 (04) :405-412

[8]

Gusev G.V., 1978, Polymer Science USSR, V20, P1295

[9] A critical review of cellobiose dehydrogenases [J].

Henriksson, G ;

Johansson, G ;

Pettersson, G .

JOURNAL OF BIOTECHNOLOGY, 2000, 78 (02) :93-113

[10]

*ISO, 2010, ISO53511

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