Photoassisted electrochemical degradation of an azo dye using Ti/RuO2 anode and carbon nanotubes containing gas-diffusion cathode

Alireza Khataee; Amaneh Akbarpour; Behrouz Vahid

doi:10.1016/j.jtice.2013.08.015

Photoassisted electrochemical degradation of an azo dye using Ti/RuO₂ anode and carbon nanotubes containing gas-diffusion cathode

Alireza Khataee^*, Amaneh Akbarpour, Behrouz Vahid

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

57 Citations (Scopus)

Abstract

A photoassisted electrochemical system was utilized for degradation of a di-azo dye under recirculation mode. Experiments were performed with active titanium/ruthenium oxide (Ti/RuO₂) anode and cathode containing carbon nanotubes (CNTs). Transmission electron microscopy image of CNTs revealed that they had an inner and outer diameter of 6nm and 22nm, respectively. Degradation efficiency of DB129 by photolysis, electrochemical oxidation and photoassisted electrochemical processes was 29.29, 37.19 and 92.03%, respectively at 90min of processes. TOC results indicated that 93.36% of organic substrates were mineralized after 360min of photoassisted electrochemical process and some degradation intermediates were identified by GC-MS.

Original language	English
Pages (from-to)	930-936
Number of pages	7
Journal	Journal of the Taiwan Institute of Chemical Engineers
Volume	45
Issue number	3
DOIs	https://doi.org/10.1016/j.jtice.2013.08.015
Publication status	Published - May 2014
Externally published	Yes

Keywords

Anodic oxidation
Carbon nanotubes
Decolorization
Electrochemical oxidation

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10.1016/j.jtice.2013.08.015

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title = "Photoassisted electrochemical degradation of an azo dye using Ti/RuO2 anode and carbon nanotubes containing gas-diffusion cathode",

abstract = "A photoassisted electrochemical system was utilized for degradation of a di-azo dye under recirculation mode. Experiments were performed with active titanium/ruthenium oxide (Ti/RuO2) anode and cathode containing carbon nanotubes (CNTs). Transmission electron microscopy image of CNTs revealed that they had an inner and outer diameter of 6nm and 22nm, respectively. Degradation efficiency of DB129 by photolysis, electrochemical oxidation and photoassisted electrochemical processes was 29.29, 37.19 and 92.03%, respectively at 90min of processes. TOC results indicated that 93.36% of organic substrates were mineralized after 360min of photoassisted electrochemical process and some degradation intermediates were identified by GC-MS.",

keywords = "Anodic oxidation, Carbon nanotubes, Decolorization, Electrochemical oxidation",

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T1 - Photoassisted electrochemical degradation of an azo dye using Ti/RuO2 anode and carbon nanotubes containing gas-diffusion cathode

AU - Khataee, Alireza

AU - Akbarpour, Amaneh

AU - Vahid, Behrouz

PY - 2014/5

Y1 - 2014/5

N2 - A photoassisted electrochemical system was utilized for degradation of a di-azo dye under recirculation mode. Experiments were performed with active titanium/ruthenium oxide (Ti/RuO2) anode and cathode containing carbon nanotubes (CNTs). Transmission electron microscopy image of CNTs revealed that they had an inner and outer diameter of 6nm and 22nm, respectively. Degradation efficiency of DB129 by photolysis, electrochemical oxidation and photoassisted electrochemical processes was 29.29, 37.19 and 92.03%, respectively at 90min of processes. TOC results indicated that 93.36% of organic substrates were mineralized after 360min of photoassisted electrochemical process and some degradation intermediates were identified by GC-MS.

AB - A photoassisted electrochemical system was utilized for degradation of a di-azo dye under recirculation mode. Experiments were performed with active titanium/ruthenium oxide (Ti/RuO2) anode and cathode containing carbon nanotubes (CNTs). Transmission electron microscopy image of CNTs revealed that they had an inner and outer diameter of 6nm and 22nm, respectively. Degradation efficiency of DB129 by photolysis, electrochemical oxidation and photoassisted electrochemical processes was 29.29, 37.19 and 92.03%, respectively at 90min of processes. TOC results indicated that 93.36% of organic substrates were mineralized after 360min of photoassisted electrochemical process and some degradation intermediates were identified by GC-MS.

KW - Anodic oxidation

KW - Carbon nanotubes

KW - Decolorization

KW - Electrochemical oxidation

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DO - 10.1016/j.jtice.2013.08.015

M3 - Article

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SN - 1876-1070

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JO - Journal of the Taiwan Institute of Chemical Engineers

JF - Journal of the Taiwan Institute of Chemical Engineers

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Photoassisted electrochemical degradation of an azo dye using Ti/RuO₂ anode and carbon nanotubes containing gas-diffusion cathode

Abstract

Keywords

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