The role of multiwalled carbon nanotubes (MWCNTs) in the catalytic ozonation of atrazine

Xiaolei Fan; João Restivo; José J M Órfão; Manuel Fernando R Pereira; Alexei A. Lapkin

doi:10.1016/j.cej.2013.12.023

The role of multiwalled carbon nanotubes (MWCNTs) in the catalytic ozonation of atrazine

Xiaolei Fan, João Restivo, José J M Órfão, Manuel Fernando R Pereira, Alexei A. Lapkin

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

Abstract

Multiwalled carbon nanotubes (MWCNTs) are used as catalysts in ozonation of atrazine in aqueous solutions. The catalyst changed the distribution of atrazine degradation intermediates, leading to the decrease in the effluent toxicity compared to non-catalytic ozonation and an increase in the overall mineralisation of atrazine. However, the overall rate of atrazine conversion was somewhat reduced in the presence of the nanotube catalyst (apparent rate constant: 0.233min-1 versus 0.143min-1 in the presence of the nanotubes). Detailed analysis of intermediates in catalysed and non-catalysed reactions allowed to propose the likely reaction pathway in the presence of the nanotubes. © 2013 Elsevier B.V.

Original language	English
Pages (from-to)	66-76
Number of pages	10
Journal	Chemical Engineering Journal
Volume	241
Early online date	12 Dec 2013
DOIs	https://doi.org/10.1016/j.cej.2013.12.023
Publication status	Published - 1 Apr 2014

Keywords

Advanced oxidation processes (AOPs)
Atrazine
Catalytic ozonation
Multiwalled carbon nanotubes (MWCNTs)

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10.1016/j.cej.2013.12.023

http://www.sciencedirect.com/science/article/pii/S1385894713015969

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title = "The role of multiwalled carbon nanotubes (MWCNTs) in the catalytic ozonation of atrazine",

abstract = "Multiwalled carbon nanotubes (MWCNTs) are used as catalysts in ozonation of atrazine in aqueous solutions. The catalyst changed the distribution of atrazine degradation intermediates, leading to the decrease in the effluent toxicity compared to non-catalytic ozonation and an increase in the overall mineralisation of atrazine. However, the overall rate of atrazine conversion was somewhat reduced in the presence of the nanotube catalyst (apparent rate constant: 0.233min-1 versus 0.143min-1 in the presence of the nanotubes). Detailed analysis of intermediates in catalysed and non-catalysed reactions allowed to propose the likely reaction pathway in the presence of the nanotubes. {\textcopyright} 2013 Elsevier B.V.",

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AU - Fan, Xiaolei

AU - Restivo, João

AU - Órfão, José J M

AU - Pereira, Manuel Fernando R

AU - Lapkin, Alexei A.

PY - 2014/4/1

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N2 - Multiwalled carbon nanotubes (MWCNTs) are used as catalysts in ozonation of atrazine in aqueous solutions. The catalyst changed the distribution of atrazine degradation intermediates, leading to the decrease in the effluent toxicity compared to non-catalytic ozonation and an increase in the overall mineralisation of atrazine. However, the overall rate of atrazine conversion was somewhat reduced in the presence of the nanotube catalyst (apparent rate constant: 0.233min-1 versus 0.143min-1 in the presence of the nanotubes). Detailed analysis of intermediates in catalysed and non-catalysed reactions allowed to propose the likely reaction pathway in the presence of the nanotubes. © 2013 Elsevier B.V.

AB - Multiwalled carbon nanotubes (MWCNTs) are used as catalysts in ozonation of atrazine in aqueous solutions. The catalyst changed the distribution of atrazine degradation intermediates, leading to the decrease in the effluent toxicity compared to non-catalytic ozonation and an increase in the overall mineralisation of atrazine. However, the overall rate of atrazine conversion was somewhat reduced in the presence of the nanotube catalyst (apparent rate constant: 0.233min-1 versus 0.143min-1 in the presence of the nanotubes). Detailed analysis of intermediates in catalysed and non-catalysed reactions allowed to propose the likely reaction pathway in the presence of the nanotubes. © 2013 Elsevier B.V.

KW - Advanced oxidation processes (AOPs)

KW - Atrazine

KW - Catalytic ozonation

KW - Multiwalled carbon nanotubes (MWCNTs)

U2 - 10.1016/j.cej.2013.12.023

DO - 10.1016/j.cej.2013.12.023

M3 - Article

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VL - 241

SP - 66

EP - 76

JO - Chemical Engineering Journal

JF - Chemical Engineering Journal

ER -

The role of multiwalled carbon nanotubes (MWCNTs) in the catalytic ozonation of atrazine

Abstract

Keywords

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