Dye removal using electrochemistry and semiconductor oxide nanotubes

Shukla, Satyajit; Oturan, Mehmet A.

doi:10.1007/s10311-015-0501-y

Cited by 50 publications

(14 citation statements)

References 64 publications

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“…Among AOPs, electrochemical advanced oxidation processes (EAOPs) have received an increasing attention because of their efficiency in the destruction of toxic/persistent organic pollutants, environmental safety and computability and versatility [22], [23], [24] and [25].…”

Section: Introductionmentioning

confidence: 99%

Effect of the anode materials on the efficiency of the electro-Fenton process for the mineralization of the antibiotic sulfamethazine

Sopaj¹,

Oturan²,

Pinson³

et al. 2016

Applied Catalysis B: Environmental

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241

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Section: Introductionmentioning

confidence: 99%

Effect of the anode materials on the efficiency of the electro-Fenton process for the mineralization of the antibiotic sulfamethazine

Sopaj¹,

Oturan²,

Pinson³

et al. 2016

Applied Catalysis B: Environmental

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241

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“…Several electrochemical advanced oxidation processes (EAOPs), including electro-oxidation (EO, also called electrochemical oxidation or anodic oxidation) and processes based on Fenton's reaction like electro-Fenton (EF), have been recently utilized to efficiently destroy azo dyes [4,[11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30]. EAOPs are easy to handle and very versatile, also presenting high energy efficiency, great effectiveness to oxidize organic pollutants and environmental compatibility.…”

Section: Introductionmentioning

confidence: 99%

Evidence of Fenton-like reaction with active chlorine during the electrocatalytic oxidation of Acid Yellow 36 azo dye with Ir-Sn-Sb oxide anode in the presence of iron ion

Aguilar

Brillas

Salazar

et al. 2017

Applied Catalysis B: Environmental

117

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The degradation of 2.5 L of Acid Yellow 36 solutions at pH 3.0 by electro-oxidation (EO) has been studied in a flow plant with a reactor containing an Ir-Sn-Sb oxide anode and a stainless steel cathode. The anode was prepared onto Ti by the Pechini method and characterized by SEM-EDX and XRD. It showed a certain ability to electrocatalyze both, the generation of adsorbed OH from water oxidation in sulfate medium and, more largely, the production of active chlorine in a mixed electrolyte containing Cl − ion. The EO treatment of the dye solution in the latter medium led to a rapid decolorization because active chorine destroyed the colored by-products formed, but color removal was much slower in pure NaClO 4 or Na 2 SO 4 due to the limited formation of OH. In contrast, greater mineralization was obtained in both pure electrolytes since the by-products formed in the presence of Cl − became largely persistent. The effect of liquid flow rate, current density and dye content on the EO performance in the mixed electrolyte was examined. The drop of absorbance and dye concentration obeyed a pseudo-first-order kinetics. Interestingly, the decolorization rate, dye concentration decay and TOC removal were enhanced upon catalysis with 1.0 mM Fe 2+. Such better performance can be accounted for by the formation of OH in the bulk from the electro-Fenton-like reaction between electrogenerated HClO and added Fe 2+. Even larger mineralization was achieved by the photoelectro-Fenton-like process upon irradiation of the solution with UVA light due to photolysis of some refractory intermediates. Maleic and acetic acids were detected as final short-chain linear carboxylic acids. The loss of Cl − and the formation of ClO 3 − , ClO 4 − , SO 4 2− , NO 3 − and NH 4 + were evaluated as well.

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“…-quantum spots [22,23]; -nanocrystals [24]; -nanotubes [25]; -nanothreads [26,27]; -porous semiconductors [28,29]; -textured surfaces [30]; -whiskers [31], etc. Formation of porous layers on the surface of semiconductors of group A3V5 typically occurs when using chemical [32,33] and electrochemical methods [34,35].…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Research into effect of electrochemical etching conditions on the morphology of porous gallium arsenide

Vambol

Богданов

Vambol

et al. 2017

EEJET

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Dye removal using electrochemistry and semiconductor oxide nanotubes

Cited by 50 publications

References 64 publications

Effect of the anode materials on the efficiency of the electro-Fenton process for the mineralization of the antibiotic sulfamethazine

Effect of the anode materials on the efficiency of the electro-Fenton process for the mineralization of the antibiotic sulfamethazine

Evidence of Fenton-like reaction with active chlorine during the electrocatalytic oxidation of Acid Yellow 36 azo dye with Ir-Sn-Sb oxide anode in the presence of iron ion

Research into effect of electrochemical etching conditions on the morphology of porous gallium arsenide

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