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[期刊论文]

Photocatalytic performance of alpha-, beta-, and gamma-Ga2O3 for the destruction of volatile aromatic pollutants in air

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author:

Hou, Yidong (Hou, Yidong.) [1] (Scholars:侯乙东) | Wu, Ling (Wu, Ling.) [2] (Scholars:吴棱) | Wang, Xinchen (Wang, Xinchen.) [3] (Scholars:王心晨) | Unfold

Indexed by:

EI Scopus SCIE

Abstract:

Three polymorphs of Ga2O3 (alpha-, beta-, and gamma-Ga2O3) were prepared, and their photocatalytic activities were evaluated by the decomposition of volatile aromatic compounds (e.g., benzene, toluene, and ethylbenzene) in dry air stream under UV light illumination at room temperature. It was found that the Ga2O3 catalysts exhibited much higher photocatalytic activity than commercial TiO2. The photocatalytic activities of the Ga2O3 polymorphs were strongly influenced by their crystal structure, and their specific activities decreased in the following order: beta-Ga2O3 > alpha-Ga2O3 > gamma-Ga2O3. The reasons for the differences in photocatalytic activity of the Ga203 polymorphs are discussed in terms of crystallinity, geometric structure, and electronic properties of the polymorphs. (c) 2007 Elsevier Inc. All rights reserved.

Keyword:

Ga2O3 geometric structure photocatalysis photoluminescence

Community:

  • [ 1 ] Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • 付贤智

    [Fu, Xianzhi]Fuzhou Univ, Res Inst Photocatalysis, State Key Lab Breeding Base Photocatalysis, Fuzhou 350002, Peoples R China

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Related Article:

Source :

JOURNAL OF CATALYSIS

ISSN: 0021-9517

Year: 2007

Issue: 1

Volume: 250

Page: 12-18

4 . 7 3 7

JCR@2007

6 . 5 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:1

Cited Count:

WoS CC Cited Count: 262

SCOPUS Cited Count: 252

30 Days PV: 4

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