Heterogeneous photocatalysed degradation of an insecticide derivative acetamiprid in aqueous suspensions of semiconductor

A. Khan; M. M. Haque; Niyaz A. Mir; M. Muneer; C. Boxall

doi:10.1016/j.desal.2010.05.001

Heterogeneous photocatalysed degradation of an insecticide derivative acetamiprid in aqueous suspensions of semiconductor

A. Khan, M. M. Haque, Niyaz A. Mir, M. Muneer^*, C. Boxall

^*Corresponding author for this work

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

40 Scopus citations

Abstract

The photocatalytic degradation of an insecticide derivative, acetamiprid has been investigated in aqueous suspensions of titanium dioxide (TiO₂) as a function of irradiation time under a variety of conditions using UV-Vis and HPLC analysis techniques. The degradation kinetics were studied under different conditions such as types of TiO₂, catalyst and substrate concentration, reaction pH and in the presence of electron acceptors like hydrogen peroxide (H₂O₂), potassium bromate (KBrO₃), and potassium persulphate (K₂S₂O₈) besides molecular oxygen (O₂). 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 to other TiO₂ powders used under these studies. The model compound was found to degrade more efficiently in alkaline pH and all electron acceptors enhanced the degradation rate. GC/MS analysis of the irradiated samples indicated the formation of several by-products. A probable mechanism for the formation of by-products has been proposed.

Original language	English
Pages (from-to)	169-174
Number of pages	6
Journal	Desalination
Volume	261
Issue number	1-2
DOIs	https://doi.org/10.1016/j.desal.2010.05.001
State	Published - Oct 2010
Externally published	Yes

Bibliographical note

Funding Information:
Financial support from the European Commission (contract No. MESOCAT-514289 ) and UGC, New Delhi sponsored project under major scheme and DRS-I (SAP) from UGC, New Delhi to the Department of Chemistry, Aligarh Muslim University, Aligarh is gratefully acknowledged.

Keywords

Acetamiprid
Insecticide
Photocatalytic degradation
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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title = "Heterogeneous photocatalysed degradation of an insecticide derivative acetamiprid in aqueous suspensions of semiconductor",

abstract = "The photocatalytic degradation of an insecticide derivative, acetamiprid has been investigated in aqueous suspensions of titanium dioxide (TiO2) as a function of irradiation time under a variety of conditions using UV-Vis and HPLC analysis techniques. The degradation kinetics were studied under different conditions such as types of TiO2, catalyst and substrate concentration, reaction pH and in the presence of electron acceptors like hydrogen peroxide (H2O2), potassium bromate (KBrO3), and potassium persulphate (K2S2O8) besides molecular oxygen (O2). 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 to other TiO2 powders used under these studies. The model compound was found to degrade more efficiently in alkaline pH and all electron acceptors enhanced the degradation rate. GC/MS analysis of the irradiated samples indicated the formation of several by-products. A probable mechanism for the formation of by-products has been proposed.",

keywords = "Acetamiprid, Insecticide, Photocatalytic degradation, Semiconductor, Titanium dioxide",

author = "A. Khan and Haque, \{M. M.\} and Mir, \{Niyaz A.\} and M. Muneer and C. Boxall",

note = "Funding Information: Financial support from the European Commission (contract No. MESOCAT-514289 ) and UGC, New Delhi sponsored project under major scheme and DRS-I (SAP) from UGC, New Delhi to the Department of Chemistry, Aligarh Muslim University, Aligarh is gratefully acknowledged.",

year = "2010",

month = oct,

doi = "10.1016/j.desal.2010.05.001",

language = "English",

volume = "261",

pages = "169--174",

journal = "Desalination",

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AU - Khan, A.

AU - Haque, M. M.

AU - Mir, Niyaz A.

AU - Muneer, M.

AU - Boxall, C.

N1 - Funding Information: Financial support from the European Commission (contract No. MESOCAT-514289 ) and UGC, New Delhi sponsored project under major scheme and DRS-I (SAP) from UGC, New Delhi to the Department of Chemistry, Aligarh Muslim University, Aligarh is gratefully acknowledged.

PY - 2010/10

Y1 - 2010/10

N2 - The photocatalytic degradation of an insecticide derivative, acetamiprid has been investigated in aqueous suspensions of titanium dioxide (TiO2) as a function of irradiation time under a variety of conditions using UV-Vis and HPLC analysis techniques. The degradation kinetics were studied under different conditions such as types of TiO2, catalyst and substrate concentration, reaction pH and in the presence of electron acceptors like hydrogen peroxide (H2O2), potassium bromate (KBrO3), and potassium persulphate (K2S2O8) besides molecular oxygen (O2). 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 to other TiO2 powders used under these studies. The model compound was found to degrade more efficiently in alkaline pH and all electron acceptors enhanced the degradation rate. GC/MS analysis of the irradiated samples indicated the formation of several by-products. A probable mechanism for the formation of by-products has been proposed.

AB - The photocatalytic degradation of an insecticide derivative, acetamiprid has been investigated in aqueous suspensions of titanium dioxide (TiO2) as a function of irradiation time under a variety of conditions using UV-Vis and HPLC analysis techniques. The degradation kinetics were studied under different conditions such as types of TiO2, catalyst and substrate concentration, reaction pH and in the presence of electron acceptors like hydrogen peroxide (H2O2), potassium bromate (KBrO3), and potassium persulphate (K2S2O8) besides molecular oxygen (O2). 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 to other TiO2 powders used under these studies. The model compound was found to degrade more efficiently in alkaline pH and all electron acceptors enhanced the degradation rate. GC/MS analysis of the irradiated samples indicated the formation of several by-products. A probable mechanism for the formation of by-products has been proposed.

KW - Acetamiprid

KW - Insecticide

KW - Photocatalytic degradation

KW - Semiconductor

KW - Titanium dioxide

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DO - 10.1016/j.desal.2010.05.001

M3 - Article

AN - SCOPUS:78049425855

SN - 0011-9164

VL - 261

SP - 169

EP - 174

JO - Desalination

JF - Desalination

IS - 1-2

ER -

Heterogeneous photocatalysed degradation of an insecticide derivative acetamiprid in aqueous suspensions of semiconductor

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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