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Materials 2018, 11(8), 1359; https://doi.org/10.3390/ma11081359

Facile Fabrication of Dumbbell-Like β-Bi2O3/Graphene Nanocomposites and Their Highly Efficient Photocatalytic Activity

1,†
,
2,†,* , 3,4
and
3,*
1
Chongqing Key Laboratory of Environmental Materials & Remediation Technologies, Chongqing University of Arts and Sciences, Yongchuan 402160, China
2
Chongqing Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology (EBEAM), Yangtze Normal University, Chongqing 408100, China
3
State Key Laboratory of Coal Mine Disaster Dynamics and Control, Chongqing University, Chongqing 400044, China
4
College of Chemistry and Chemical Engineering, Chongqing University, Chongqing 401331, China
The two authors contributed equally to this work.
*
Authors to whom correspondence should be addressed.
Received: 10 July 2018 / Revised: 3 August 2018 / Accepted: 3 August 2018 / Published: 6 August 2018
(This article belongs to the Special Issue Photocatalysis for Wastewater Treatment)
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Abstract

β-Bi2O3 decorated graphene nanosheets (β-Bi2O3/GN) were prepared by a facile solution mixing method. The crystal structure, surface morphology, and photo absorbance properties of the products were characterized by XRD, SEM, and UV-VIS diffuse reflection, respectively. Moreover, the effect of graphene content on photocatalytic activity was systematically investigated, and the results indicated that these composites possessed a high degradation rate of Rhodamine B (RhB), which was three times higher than that of bare β-Bi2O3 when graphene content was 1 wt %. This high photocatalytic activity was attributed predominantly to the presence of graphene, which served as an electron collector and transporter to efficiently lengthen the lifetime of the photogenerated charge carriers from β-Bi2O3. View Full-Text
Keywords: Dumbbell-like β-Bi2O3; photocatalysis; β-Bi2O3/GN; graphene-based composite Dumbbell-like β-Bi2O3; photocatalysis; β-Bi2O3/GN; graphene-based composite
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Yang, J.; Xie, T.; Liu, C.; Xu, L. Facile Fabrication of Dumbbell-Like β-Bi2O3/Graphene Nanocomposites and Their Highly Efficient Photocatalytic Activity. Materials 2018, 11, 1359.

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