Photocatalytic reduction of hexavalent chromium and degradation of Di-N-Butyl phthalate in aqueous TIO2 suspensions under ultraviolet light irradiation

X. R. Xu; H. B. Li; J. D. Gu

doi:10.1080/09593332808618866

Photocatalytic reduction of hexavalent chromium and degradation of Di-N-Butyl phthalate in aqueous TIO₂ suspensions under ultraviolet light irradiation

X. R. Xu^*, H. B. Li, J. D. Gu

^*Corresponding author for this work

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

18 Scopus citations

Abstract

Simultaneous photocatalytic reduction of chromium(VI) to the less toxic Cr(III) and degradation of di-n-butyl phthalate (DBP) in aqueous TiO₂ suspension under ultraviolet light irradiation was investigated. The batch experiments were carried out in a photoreactor equipped with 350 nm lamps. The system containing Cr(VI) and DBP showed the synergistic photocatalytic decontamination as DBP facilitated Cr(VI) reduction, whereas Cr(VI) accelerated DBP degradation. This study demonstrated for the first time that two important environmental pollutants Cr(VI) and DBP could be eliminated simultaneously using UV/TiO₂ process. The intermediate products of DBP degradation were identified by gas chromatography-mass spectrometry, and the reaction mechanism was proposed.

Original language	English
Pages (from-to)	1055-1061
Number of pages	7
Journal	Environmental Technology (United Kingdom)
Volume	28
Issue number	9
DOIs	https://doi.org/10.1080/09593332808618866
State	Published - Sep 2007
Externally published	Yes

Keywords

Chromium(VI)
DBP
Degradation
Photocatalysis
Reduction

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10.1080/09593332808618866

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title = "Photocatalytic reduction of hexavalent chromium and degradation of Di-N-Butyl phthalate in aqueous TIO2 suspensions under ultraviolet light irradiation",

abstract = "Simultaneous photocatalytic reduction of chromium(VI) to the less toxic Cr(III) and degradation of di-n-butyl phthalate (DBP) in aqueous TiO2 suspension under ultraviolet light irradiation was investigated. The batch experiments were carried out in a photoreactor equipped with 350 nm lamps. The system containing Cr(VI) and DBP showed the synergistic photocatalytic decontamination as DBP facilitated Cr(VI) reduction, whereas Cr(VI) accelerated DBP degradation. This study demonstrated for the first time that two important environmental pollutants Cr(VI) and DBP could be eliminated simultaneously using UV/TiO2 process. The intermediate products of DBP degradation were identified by gas chromatography-mass spectrometry, and the reaction mechanism was proposed.",

keywords = "Chromium(VI), DBP, Degradation, Photocatalysis, Reduction",

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AU - Xu, X. R.

AU - Li, H. B.

AU - Gu, J. D.

PY - 2007/9

Y1 - 2007/9

N2 - Simultaneous photocatalytic reduction of chromium(VI) to the less toxic Cr(III) and degradation of di-n-butyl phthalate (DBP) in aqueous TiO2 suspension under ultraviolet light irradiation was investigated. The batch experiments were carried out in a photoreactor equipped with 350 nm lamps. The system containing Cr(VI) and DBP showed the synergistic photocatalytic decontamination as DBP facilitated Cr(VI) reduction, whereas Cr(VI) accelerated DBP degradation. This study demonstrated for the first time that two important environmental pollutants Cr(VI) and DBP could be eliminated simultaneously using UV/TiO2 process. The intermediate products of DBP degradation were identified by gas chromatography-mass spectrometry, and the reaction mechanism was proposed.

AB - Simultaneous photocatalytic reduction of chromium(VI) to the less toxic Cr(III) and degradation of di-n-butyl phthalate (DBP) in aqueous TiO2 suspension under ultraviolet light irradiation was investigated. The batch experiments were carried out in a photoreactor equipped with 350 nm lamps. The system containing Cr(VI) and DBP showed the synergistic photocatalytic decontamination as DBP facilitated Cr(VI) reduction, whereas Cr(VI) accelerated DBP degradation. This study demonstrated for the first time that two important environmental pollutants Cr(VI) and DBP could be eliminated simultaneously using UV/TiO2 process. The intermediate products of DBP degradation were identified by gas chromatography-mass spectrometry, and the reaction mechanism was proposed.

KW - Chromium(VI)

KW - DBP

KW - Degradation

KW - Photocatalysis

KW - Reduction

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DO - 10.1080/09593332808618866

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Photocatalytic reduction of hexavalent chromium and degradation of Di-N-Butyl phthalate in aqueous TIO₂ suspensions under ultraviolet light irradiation

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Keywords

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