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BiOCl nanosheet/Bi4Ti3O12 nanofiber heterostructures with enhanced photocatalytic activity

Paper ID Volume ID Publish Year Pages File Format Full-Text
49916 46773 2015 5 PDF Available
Title
BiOCl nanosheet/Bi4Ti3O12 nanofiber heterostructures with enhanced photocatalytic activity
Abstract

•One-dimensional BiOCl/Bi4Ti3O12 hierarchical heterostructures are fabricated.•BiOCl/Bi4Ti3O12 heterostructures exhibit enhanced photocatalytic activity.•Well-matched band structure enhances the photo-induced charge separation.•Nanofibrous morphology can be easily separated from suspension by sedimentation.

Aurivillius oxide semiconductors are important photocatalyst because of their unique electronic structure and layered crystal. In this paper, two kinds of Aurivillius oxide semiconductors heterostructures based on Bi4Ti3O12 nanofibers frameworks and BiOCl nanosheets are successfully synthesized by combining the electrospinning technique and solvothermal method. The high-resolution transmission electron microscopy results reveal that an intimate interface between Bi4Ti3O12 nanofibers and BiOCl nanosheets forms in the heterojunctions. Photocatalytic tests show that the BiOCl/Bi4Ti3O12 heterostructures exhibit enhanced photocatalytic activity than bare Bi4Ti3O12 and BiOCl, mainly owing to the photoinduced interfacial charge transfer based on the photosynergistic effect of the BiOCl/Bi4Ti3O12 heterojunction. At the end, the photocatalytic mechanism with O2− production was studied.

Graphical abstractOne-dimensional BiOCl/Bi4Ti3O12 hierarchical heterostructures exhibit enhanced photocatalytic activity due to the photoinduced interfacial charge transfer based on the photosynergistic effect of the formed heterojunction.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
GLQBXSIPUULYOG-UHFFFAOYSA-M; WCVHOGBBAURXFH-UHFFFAOYSA-NBiOCl; Bi4Ti3O12; Heterostructure; Photocatalysis; Degradation
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BiOCl nanosheet/Bi4Ti3O12 nanofiber heterostructures with enhanced photocatalytic activity
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 58, 5 January 2015, Pages 122–126
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us