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Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts.

ABSTRACT: A novel graphene oxide/BiOCl (GO/BiOCl) nanocomposite film was prepared via a spread coating method. In visible-light photocatalytically degrading Rhodamine B (RhB) experiments, 2 wt% GO/BiOCl could degrade 99% of RhB within 1.5 h and the rate constant was 12.2 times higher than that of pure BiOCl. The degradation efficiency still kept at 80% even after 4 recycles, evidencing the relatively good recyclability. The enhancement was attributed to the improvement of visible light adsorption and charge separation. Holes and superoxide radicals· O2- played a major role as reactive species. The values of conduction band and valence band for GO and BiOCl were calculated and a new photocatalytic mechanism of GO/BiOCl nanocomposite was proposed.

SUBMITTER: Lin W

PROVIDER: S-EPMC6066524 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature

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Graphene Oxide/BiOCl Nanocomposite Films as Efficient Visible Light Photocatalysts.

Lin Weitian W Yu Xiang X Zhu Yi Y Zhang Yuanming Y

Frontiers in chemistry 20180724

A novel graphene oxide/BiOCl (GO/BiOCl) nanocomposite film was prepared <i>via</i> a spread coating method. In visible-light photocatalytically degrading Rhodamine B (RhB) experiments, 2 wt% GO/BiOCl could degrade 99% of RhB within 1.5 h and the rate constant was 12.2 times higher than that of pure BiOCl. The degradation efficiency still kept at 80% even after 4 recycles, evidencing the relatively good recyclability. The enhancement was attributed to the improvement of visible light adsorption a ...[more]

PMID: 30137741

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