Photocatalytic degradation of methyl orange in aqueous suspension of mesoporous titania nanoparticles.

Photocatalytic degradation of methyl orange in aqueous suspension of mesoporous titania nanoparticles. Research Abstract Details 

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Photocatalytic degradation of methyl orange in aqueous suspension of mesoporous titania nanoparticles. Abstract Text:

Ke Dai,Hao Chen,Tianyou Peng,Dingning Ke,Huabing Yi,Ke Dai,Hao Chen,Tianyou Peng,Dingning Ke,Huabing Yi,Ke Dai,Hao Chen,Tianyou Peng,Dingning Ke,Huabing Yi,

The photodegradation of methyl orange (MO) was investigated in aqueous suspension containing titania nanoparticles with mesostructures (m-TiO(2)) under UV irradiation. The experimental results show that 98% MO can be mineralized in the 1.0gl(-1) m-TiO(2) suspension (pH 2.0) after 45min illumination. Particular attention was devoted to the identification and the transformation of the fragments retaining the chromophoric group. The photodegradation mechanism of the quinonoid MO mainly involves three intermedial processes: demethylation, methylation and hydroxylation. Among those processes, demethylation is more favorable than the hydroxylation, but the hydroxylation results in the largest number of intermediates. The degradation pathway of quinonoid MO under the optimal conditions is also proposed.

Photocatalytic degradation of methyl orange in aqueous suspension of mesoporous titania nanoparticles. Publishing Authors By Initials

K Dai,H Chen,T Peng,D Ke,H Yi,K Dai,H Chen,T Peng,D Ke,H Yi,K Dai,H Chen,T Peng,D Ke,H Yi,

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Photocatalytic degradation of methyl orange in aqueous suspension of mesoporous titania nanoparticles. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Chemosphere

VOLUME: 69

Page Numbers: 1361-7

Journal Abbreviation: Chemosphere

ISSN: 0045-6535

DAY: 22

MONTH: 06

YEAR: 2007

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LANGUAGE: eng

NlmUniqueID: 320657

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Grant and Affiliation Information for Photocatalytic degradation of methyl orange in aqueous suspension of mesoporous titania nanoparticles.

AFFILIATION: College of Science, Huazhong Agricultural University, Wuhan 430070, PR China; Department of Chemistry, Wuhan University, Wuhan 430072, PR China.

Country: England

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MEDLINETA: Chemosphere

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