The deposition of nanostructured β-PbO2 coatings from aqueous methanesulfonic acid for the electrochemical oxidation of organic pollutants

被引：77

作者：

Sires, I. ^{[1
]}

Low, C. T. J. ^{[1
]}

Ponce-de-Leon, C. ^{[1
]}

Walsh, F. C. ^{[1
]}

机构：

[1] Univ Southampton, Electrochem Engn Lab, Energy Technol Res Grp, Sch Engn Sci, Southampton SO17 1BJ, Hants, England

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2010年 / 12卷 / 01期

关键词：

Electrochemical advanced oxidation processes; Electrodeposition; Lead dioxide; Nanostructured coatings; Methanesulfonic acid; Water treatment; DIOXIDE POSITIVE ELECTRODE; FLOW BATTERY; PBO2;

D O I：

10.1016/j.elecom.2009.10.038

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Highly crystalline, nanostructured, three-dimensional beta-PbO2 coatings were successfully obtained by galvanostatic deposition from baths containing aqueous lead(II) and methanesulfonic acid (CH3SO3H). This constitutes a much more environmentally friendly methodology compared to plating of beta-PbO2 in HNO3. The deposits exhibited high quality and good adherence. The crystallite size was in the range 20-30 nm and AFM imaging revealed very uniform, rough deposits (i.e., 255-275 nm rms). The oxidative destruction of Methyl Orange azo dye was studied by electrochemical advanced oxidation processes (EAOPs). An electro-Fenton process with a high surface area carbon-felt cathode performed better than the single anodic oxidation. Rapid and complete decolorisation was achieved following pseudo first-order kinetics. The stability of the beta-PbO2 electrodes during the electrolyses was also demonstrated. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：70 / 74

页数：5

共 13 条

[1] Performance of different crystal structures of PbO2 on electrochemical degradation of phenol in aqueous solution [J].

Abaci, S ;

Tamer, U ;

Pekmez, K ;

Yildiz, A .

APPLIED SURFACE SCIENCE, 2005, 240 (1-4) :112-119

[2] Electrochemical destruction of chlorophenoxy herbicides by anodic oxidation and electro-Fenton using a boron-doped diamond electrode [J].

Brillas, E ;

Boye, B ;

Sirés, I ;

Garrido, JA ;

Rodríguez, RM ;

Arias, C ;

Cabot, PL ;

Comninellis, C .

ELECTROCHIMICA ACTA, 2004, 49 (25) :4487-4496

[3] LEAD DIOXIDE ELECTRODE [J].

CARR, JP ;

HAMPSON, NA .

CHEMICAL REVIEWS, 1972, 72 (06) :679-+

[4] Environmental benefits of methanesulfonic acid: Comparative properties and advantages [J].

Gernon, MD ;

Wu, M ;

Buszta, T ;

Janney, P .

GREEN CHEMISTRY, 1999, 1 (03) :127-140

[5] The removal of low levels of organics from aqueous solutions using Fe(II) and hydrogen peroxide formed in situ at gas diffusion electrodes [J].

Harrington, T ;

Pletcher, D .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (08) :2983-2989

[6] An AFM study of the correlation of lead dioxide electrocatalytic activity with observed morphology [J].

Hyde, ME ;

Jacobs, RMJ ;

Compton, RG .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (20) :6381-6390

[7] A novel flow battery: A lead acid battery based on an electrolyte with soluble lead(II) Part VII. Further studies of the lead dioxide positive electrode [J].

Li, Xiaohong ;

Pletcher, Derek ;

Walsh, Frank C. .

ELECTROCHIMICA ACTA, 2009, 54 (20) :4688-4695

[8] The electrodeposition of highly reflective lead dioxide coatings [J].

Low, C. T. J. ;

Pletcher, D. ;

Walsh, F. C. .

ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (06) :1301-1304

[9] Oxidation pathways of malachite green by Fe3+-catalyzed electro-Fenton process [J].

Oturan, Mehmet A. ;

Guivarch, Elodie ;

Oturan, Nihal ;

Sires, Ignasi .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2008, 82 (3-4) :244-254

[10] Electrocatalytic materials for the electrochemical oxidation of synthetic dyes [J].

Panizza, Marco ;

Cerisola, Giacomo .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 75 (1-2) :95-101

← 1 2 →