Electrooxidation of Phenol on a Ti/RuO2Anode: Effect of Some Electrolysis Parameters

被引：23
作者：
dos Santos, Iranildes D. [2 ]
Afonso, Julio C. [1 ]
Dutra, Achilles J. B. [2 ]
机构：
[1] Univ Fed Rio de Janeiro, Inst Quim, Dept Quim Analit, BR-21941909 Rio De Janeiro, Brazil
[2] Univ Fed Rio de Janeiro, Programa Engn Met & Mat, Coordencao Programas Posgrad Engn COPPE, BR-21941909 Rio De Janeiro, Brazil
来源：
JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY | 2011年 / 22卷 / 05期
关键词：
electrooxidation; phenols; chlorophenols; supporting electrolyte; WASTE-WATER TREATMENT; ELECTROCHEMICAL DEGRADATION; ORGANIC POLLUTANTS; ANODIC-OXIDATION; AQUEOUS-SOLUTION; TUBULAR REACTOR; PBO2; ANODES; ELECTRODES; ACID; POLYMERIZATION;
D O I：
10.1590/S0103-50532011000500009
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The influences of electrolysis time, anodic area, current density and supporting electrolyte on phenol and its byproducts degradation on a Ti/RuO2 anode were investigated. It was observed that phenol and its byproducts were rapidly broken down in the presence of chloride ions. Gas chromatography/mass spectrometry (GC/MS) data have shown that the presence of chloride ions lead to chlorophenols formation, due to reactions with Cl-2 and/or Off generated during electrolysis. However, these intermediate products were also degraded later by the oxidizing agents. The standards established by the CONAMA (Brazilian National Council for the Environment) for phenols and chlorophenols in effluents were achieved after 360 min of electrolysis with a current density of 10 mA cm(-2). Cyclic voltammograms obtained with the anodes before and after 436 h of electrolysis under severe salinity conditions (2 mol L-1) and current density (800 mA cm(-2)) showed that Ti/RuO2 did not lose its electrocatalytic properties. This fact indicates that Ti/RuO2 can be used for the treatment of effluents containing phenols in a chloride environment.
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收藏
页码：875 / 883
页数：9
相关论文
共 46 条
[1]   Electrochemical removal of phenol from oil refinery wastewater [J].
Abdelwahab, O. ;
Amin, N. K. ;
El-Ashtoukhy, E-S. Z. .
JOURNAL OF HAZARDOUS MATERIALS, 2009, 163 (2-3) :711-716
[2]   The effect of some organic compounds on the corrosion of pure Fe, pure Cr and Fe-Cr alloys in acidic solutions [J].
Aksut, AA ;
Onal, AN .
CORROSION SCIENCE, 1997, 39 (04) :761-774
[3]  
Al-Maznai H, 2001, J SERB CHEM SOC, V66, P765
[4]   SPECTROPHOTOMETRIC DETERMINATION OF TRACE AMOUNTS OF PHENOL IN WASTE-WATER AND BIOLOGICAL-FLUIDS [J].
AMLATHE, S ;
UPADHYAY, S ;
GUPTA, VK .
ANALYST, 1987, 112 (10) :1463-1465
[5]   Degradation of phenol using Co- and Co,F-doped PbO2 anodes in electrochemical filter-press cells [J].
Andrade, Leonardo S. ;
Rocha-Filho, Romeu C. ;
Bocchi, Nerilso ;
Biaggio, Sonia R. ;
Iniesta, Jesus ;
Garcia-Garcia, Vicente ;
Montiel, Vicente .
JOURNAL OF HAZARDOUS MATERIALS, 2008, 153 (1-2) :252-260
[6]   The influence of residence time on the anodic oxidation of phenol [J].
Awad, YM ;
Abuzaid, NS .
SEPARATION AND PURIFICATION TECHNOLOGY, 2000, 18 (03) :227-236
[7]   Electrochemical degradation of 1,2-dichloroethane (DCA) in a synthetic groundwater medium using stainless-steel electrodes [J].
Bejankiwar, R ;
Lalman, JA ;
Seth, R ;
Biswas, N .
WATER RESEARCH, 2005, 39 (19) :4715-4724
[8]   A comparison of the electrooxidation kinetics of p-methoxyphenol and p-nitrophenol on Sb-doped SnO2 surfaces:: Concentration and temperature effects [J].
Borras, C. ;
Berzoy, C. ;
Mostany, J. ;
Herrera, J. C. ;
Scharifker, B. R. .
APPLIED CATALYSIS B-ENVIRONMENTAL, 2007, 72 (1-2) :98-104
[9]   Technologies for the removal of phenol from fluid streams: A short review of recent developments [J].
Busca, Guido ;
Berardinelli, Silvia ;
Resini, Carlo ;
Arrighi, Laura .
JOURNAL OF HAZARDOUS MATERIALS, 2008, 160 (2-3) :265-288
[10]   Electrochemical oxidation of model compounds and olive mill wastewater over DSA electrodes: 1. The case of Ti/IrO2 anode [J].
Chatzisymeon, E. ;
Dimou, A. ;
Mantzavinos, D. ;
Katsaounis, A. .
JOURNAL OF HAZARDOUS MATERIALS, 2009, 167 (1-3) :268-274
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