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Recent Advances and Applications of Semiconductor Photocatalytic Technology
Open AccessArticle

Graphene Quantum Dots Doped PVDF(TBT)/PVP(TBT) Fiber Film with Enhanced Photocatalytic Performance

1
College of Physics Science, Qingdao University, Qingdao 266071, China
2
State Key Laboratory of Marine Coatings, Marine Chemical Research Institute Co. Ltd., Qingdao 266071, China
3
Research Institute for Frontier Science, Beihang University, Beijing 100191, China
4
Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
5
School of Space and Environment, Beihang University, Beijing 100191, China
6
Department of Chemistry, University of Pittsburgh, Pittsburgh, PA 15260, USA
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2020, 10(2), 596; https://doi.org/10.3390/app10020596
Received: 21 November 2019 / Revised: 8 January 2020 / Accepted: 9 January 2020 / Published: 14 January 2020
(This article belongs to the Special Issue Advances in Semiconductor Photocatalysis)
We report the fabrication of polyvinylidene fluoride (tetrabutyl titanate)/polyvinyl pyrrolidone ((tetrabutyl titanate))-graphene quantum dots [PVDF(TBT)/PVP(TBT)-GQDs] film photocatalyst with enhanced photocatalytic performance. The polyvinylidene fluoride (tetrabutyl titanate)/polyvinyl pyrrolidone ((tetrabutyl titanate)) [PVDF(TBT)/PVP(TBT)] film was first prepared with a dual-electrospinning method and then followed by attaching graphene quantum dots (GQDs) to the surface of the composite film through a hydrothermal method. Later, part of the PVP in the composite film was dissolved by a hydrothermal method. As a result, a PVDF(TBT)/PVP(TBT)-GQDs film photocatalyst with a larger specific surface area was achieved. The photocatalytic degradation behavior of the PVDF(TBT)/PVP(TBT)-GQDs film photocatalyst was examined by using Rhodamine B as the target contaminant. The PVDF(TBT)/PVP(TBT)-GQDs photocatalyst showed a higher photocatalytic efficiency than PVDF(TBT)-H2O, PVDF(TBT)/PVP(TBT)-H2O, and PVDF(TBT)-GQDs, respectively. The enhanced photocatalytic efficiency can be attributed to the broader optical response range of the PVDF(TBT)/PVP(TBT)-GQDs photocatalyst, which makes it useful as an effective photocatalyst under white light irradiation.
Keywords: electrospinning; nanofiber film; tetrabutyl titanate composites; graphene quantum dots; visible light photocatalysis electrospinning; nanofiber film; tetrabutyl titanate composites; graphene quantum dots; visible light photocatalysis
MDPI and ACS Style

Zhang, F.; Yang, C.; Wang, X.-X.; Li, R.; Wan, Z.; Wang, X.; Wan, Y.; Long, Y.-Z.; Cai, Z. Graphene Quantum Dots Doped PVDF(TBT)/PVP(TBT) Fiber Film with Enhanced Photocatalytic Performance. Appl. Sci. 2020, 10, 596.

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