Titanium dioxide mediated photocatalytic degradation of two selected azo dye derivatives, chrysoidine R and acid red 29 (chromotrope 2R), in aqueous suspensions

M. Qamar; M. Saquib; M. Muneer

doi:10.1016/j.desal.2005.05.021

Titanium dioxide mediated photocatalytic degradation of two selected azo dye derivatives, chrysoidine R and acid red 29 (chromotrope 2R), in aqueous suspensions

M. Qamar
, M. Saquib
, M. Muneer^*

^*Corresponding author for this work

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

57 Scopus citations

Abstract

Photocatalytic degradation of two selected dye derivatives, chrysoidine R and acid red 29, has been investigated in aqueous suspensions of titanium dioxide under a variety of conditions. The degradation was studied by monitoring the change in substrate concentration employing UV-spectroscopic analysis and decrease in total organic carbon (TOC) content as a function of irradiation time. The degradation was studied under a variety of conditions such as reaction pH, catalyst concentration, substrate concentration, different types of TiO₂ and in the presence of electron acceptors such as hydrogen peroxide (H₂O₂) and ammonium persulphate (NH₄)₂S₂O₈ besides molecular oxygen. The degradation rates were found to be strongly influenced by all the above parameters. The photocatalyst Degussa P25 was found to be more efficient as compared with other photocatalysts. The degradation products were analysed by GC/MS analysis technique, and probable pathways for the formation of different products have been proposed.

Original language	English
Pages (from-to)	255-271
Number of pages	17
Journal	Desalination
Volume	186
Issue number	1-3
DOIs	https://doi.org/10.1016/j.desal.2005.05.021
State	Published - 30 Dec 2005
Externally published	Yes

Bibliographical note

Funding Information:
Total organic carbon (TOC) analyzer used for the analyses of the samples was a gift equipment from the Alexander von Humboldt Foundation, Bonn, Germany. Financial support by the Department of Science and Technology (DST), Govern- ment of India, New Delhi and Department of Chemistry, Aligarh Muslim University, Aligarh, India is gratefully acknowledged.

Keywords

Acid red 29
Chrysoidine R
Photocatalysis
Semiconductor
Titanium dioxide

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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10.1016/j.desal.2005.05.021

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title = "Titanium dioxide mediated photocatalytic degradation of two selected azo dye derivatives, chrysoidine R and acid red 29 (chromotrope 2R), in aqueous suspensions",

abstract = "Photocatalytic degradation of two selected dye derivatives, chrysoidine R and acid red 29, has been investigated in aqueous suspensions of titanium dioxide under a variety of conditions. The degradation was studied by monitoring the change in substrate concentration employing UV-spectroscopic analysis and decrease in total organic carbon (TOC) content as a function of irradiation time. The degradation was studied under a variety of conditions such as reaction pH, catalyst concentration, substrate concentration, different types of TiO2 and in the presence of electron acceptors such as hydrogen peroxide (H2O2) and ammonium persulphate (NH4)2S2O8 besides molecular oxygen. The degradation rates were found to be strongly influenced by all the above parameters. The photocatalyst Degussa P25 was found to be more efficient as compared with other photocatalysts. The degradation products were analysed by GC/MS analysis technique, and probable pathways for the formation of different products have been proposed.",

keywords = "Acid red 29, Chrysoidine R, Photocatalysis, Semiconductor, Titanium dioxide",

author = "M. Qamar and M. Saquib and M. Muneer",

note = "Funding Information: Total organic carbon (TOC) analyzer used for the analyses of the samples was a gift equipment from the Alexander von Humboldt Foundation, Bonn, Germany. Financial support by the Department of Science and Technology (DST), Govern- ment of India, New Delhi and Department of Chemistry, Aligarh Muslim University, Aligarh, India is gratefully acknowledged.",

year = "2005",

month = dec,

day = "30",

doi = "10.1016/j.desal.2005.05.021",

language = "English",

volume = "186",

pages = "255--271",

journal = "Desalination",

issn = "0011-9164",

publisher = "Elsevier BV",

number = "1-3",

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T1 - Titanium dioxide mediated photocatalytic degradation of two selected azo dye derivatives, chrysoidine R and acid red 29 (chromotrope 2R), in aqueous suspensions

AU - Qamar, M.

AU - Saquib, M.

AU - Muneer, M.

N1 - Funding Information: Total organic carbon (TOC) analyzer used for the analyses of the samples was a gift equipment from the Alexander von Humboldt Foundation, Bonn, Germany. Financial support by the Department of Science and Technology (DST), Govern- ment of India, New Delhi and Department of Chemistry, Aligarh Muslim University, Aligarh, India is gratefully acknowledged.

PY - 2005/12/30

Y1 - 2005/12/30

N2 - Photocatalytic degradation of two selected dye derivatives, chrysoidine R and acid red 29, has been investigated in aqueous suspensions of titanium dioxide under a variety of conditions. The degradation was studied by monitoring the change in substrate concentration employing UV-spectroscopic analysis and decrease in total organic carbon (TOC) content as a function of irradiation time. The degradation was studied under a variety of conditions such as reaction pH, catalyst concentration, substrate concentration, different types of TiO2 and in the presence of electron acceptors such as hydrogen peroxide (H2O2) and ammonium persulphate (NH4)2S2O8 besides molecular oxygen. The degradation rates were found to be strongly influenced by all the above parameters. The photocatalyst Degussa P25 was found to be more efficient as compared with other photocatalysts. The degradation products were analysed by GC/MS analysis technique, and probable pathways for the formation of different products have been proposed.

AB - Photocatalytic degradation of two selected dye derivatives, chrysoidine R and acid red 29, has been investigated in aqueous suspensions of titanium dioxide under a variety of conditions. The degradation was studied by monitoring the change in substrate concentration employing UV-spectroscopic analysis and decrease in total organic carbon (TOC) content as a function of irradiation time. The degradation was studied under a variety of conditions such as reaction pH, catalyst concentration, substrate concentration, different types of TiO2 and in the presence of electron acceptors such as hydrogen peroxide (H2O2) and ammonium persulphate (NH4)2S2O8 besides molecular oxygen. The degradation rates were found to be strongly influenced by all the above parameters. The photocatalyst Degussa P25 was found to be more efficient as compared with other photocatalysts. The degradation products were analysed by GC/MS analysis technique, and probable pathways for the formation of different products have been proposed.

KW - Acid red 29

KW - Chrysoidine R

KW - Photocatalysis

KW - Semiconductor

KW - Titanium dioxide

UR - https://www.scopus.com/pages/publications/30044433483

U2 - 10.1016/j.desal.2005.05.021

DO - 10.1016/j.desal.2005.05.021

M3 - Article

AN - SCOPUS:30044433483

SN - 0011-9164

VL - 186

SP - 255

EP - 271

JO - Desalination

JF - Desalination

IS - 1-3

ER -

Titanium dioxide mediated photocatalytic degradation of two selected azo dye derivatives, chrysoidine R and acid red 29 (chromotrope 2R), in aqueous suspensions

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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