Improving the catalytic effect of peroxodisulfate and peroxodiphosphate electrochemically generated at diamond electrode by activation with light irradiation

被引：19
作者：
de Araujo, Danyelle Medeiros [1 ]
Saez, Cristina [2 ]
Canizares, Pablo [2 ]
Rodrigo, Manuel Andres [2 ]
Martinez-Huitle, Carlos A. [3 ,4 ]
机构：
[1] Fed Inst Educ Sci & Technol Rio Grande do Norte, BR-595080 Ipanguacu, RN, Brazil
[2] Univ Castilla La Mancha, Dept Chem Engn, Campus Univ S-N, E-13071 Ciudad Real, Spain
[3] Univ Fed Rio Grande do Norte, Inst Chem, BR-59078970 Natal, RN, Brazil
[4] UNESP, Natl Inst Alternat Technol Detect Toxicol Evaluat, Inst Chem, POB 355, BR-14800900 Araraquara, SP, Brazil
来源：
CHEMOSPHERE | 2018年 / 207卷
基金：
巴西圣保罗研究基金会;
关键词：
Electrolysis; Photoelectrolysis; Peroxosalts; Rhodamine B; Boron doped diamond; ADVANCED OXIDATION PROCESSES; ORGANIC POLLUTANTS; HYDROXYL RADICALS; AQUEOUS-SOLUTIONS; ANODIC-OXIDATION; WATER-TREATMENT; DEGRADATION; FENTON; WASTEWATERS; DYES;
D O I：
10.1016/j.chemosphere.2018.05.121
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Boron doped diamond (BDD) anode has been used to oxidatively remove Rhodamine B (RhB), as persistent organic pollutant, from synthetic wastewater by electrolysis, photoelectrolysis and chemical oxidation containing sulfate and phosphate as supporting electrolytes. RhB is effectively oxidized by electrolysis and by chemical oxidation with the oxidants separately produced by electrolyzing sulfate of phosphate solutions (peroxodisulfate and peroxodiphosphate, respectively). The results showed that light irradiation improved the electrolysis of RhB due to the activation of oxidants under irradiation at high current densities. Meanwhile, the efficiency of the chemical oxidation approach by ex situ electrochemical production of oxidants was not efficient to degrade RhB. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：774 / 780
页数：7
相关论文
共 53 条
[1]   Photo-assisted electrochemical degradation of real textile wastewater [J].
Alves, P. A. ;
Malpass, G. R. P. ;
Johansen, H. D. ;
Azevedo, E. B. ;
Gomes, L. M. ;
Vilela, W. F. D. ;
Motheo, A. J. .
WATER SCIENCE AND TECHNOLOGY, 2010, 61 (02) :491-498
[2]   Influence of the supporting electrolyte on the electrolyses of dyes with conductive-diamond anodes [J].
Aquino, Jose Mario ;
Rodrigo, Manuel A. ;
Rocha-Filho, Romeu C. ;
Saez, Cristina ;
Canizares, Pablo .
CHEMICAL ENGINEERING JOURNAL, 2012, 184 :221-227
[3]   Highlights during the development of electrochemical engineering [J].
Bebelis, S. ;
Bouzek, K. ;
Cornell, A. ;
Ferreira, M. G. S. ;
Kelsall, G. H. ;
Lapicque, F. ;
de Leon, C. Ponce ;
Rodrigo, M. A. ;
Walsh, F. C. .
CHEMICAL ENGINEERING RESEARCH & DESIGN, 2013, 91 (10) :1998-2020
[4]   Anodic oxidation, electro-Fenton and photoelectro-Fenton degradation of cyanazine using a boron-doped diamond anode and an oxygen-diffusion cathode [J].
Borras, Nuria ;
Arias, Conchita ;
Oliver, Ramon ;
Brillas, Enric .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2013, 689 :158-167
[5]   Decontamination of wastewaters containing synthetic organic dyes by electrochemical methods. An updated review [J].
Brillas, Enric ;
Martinez-Huitle, Carlos A. .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2015, 166 :603-643
[6]   Electro-Fenton Process and Related Electrochemical Technologies Based on Fenton's Reaction Chemistry [J].
Brillas, Enric ;
Sires, Ignasi ;
Oturan, Mehmet A. .
CHEMICAL REVIEWS, 2009, 109 (12) :6570-6631
[7]   Influence of the characteristics of p-Si BDD anodes on the efficiency of peroxodiphosphate electro synthesis process [J].
Canizares, P. ;
Saez, C. ;
Sanchez-Carretero, A. ;
Rodrigo, M. A. .
ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (04) :602-606
[8]   Effect of the operating conditions on the oxidation mechanisms in conductive-diamond electrolyses [J].
Canizares, P. ;
Saez, C. ;
Lobato, J. ;
Paz, R. ;
Rodrigo, M. A. .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2007, 154 (03) :E37-E44
[9]   Electrochemical synthesis of peroxodiphosphate using boron-doped diamond anodes [J].
Cañizares, P ;
Larrondo, F ;
Lobato, J ;
Rodrigo, MA ;
Sáez, C .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (11) :D191-D196
[10]   Electrochemical oxidation of phenolic wastes with boron-doped diamond anodes [J].
Cañizares, P ;
Lobato, J ;
Paz, R ;
Rodrigo, MA ;
Sáez, C .
WATER RESEARCH, 2005, 39 (12) :2687-2703
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