Introduction
Bimonthly, started in 1957
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
Administrator
Shanxi Provincial Education Department
Sponsor
Taiyuan University of Technology
Publisher
Ed. Office of Journal of TYUT
Editor-in-Chief
SUN Hongbin
ISSN: 1007-9432
CN: 14-1220/N
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Preparation and Photocatalytic Properties of TiO 2/ x -GONano-composite Fibers
DOI:
10.16355/j.cnki.issn1007-9432tyut.2019.05.003
Received:
Accepted:
abstract:
To improve the photocatalytic properties of TiO 2,the electrospinning solution with different GO concentrations was prepared by using tetrabutyl titanate as titanium source and graphene oxide(GO)powder as additive.TiO 2/x-GO nano-composite fibers were prepared by electrospinning.The phase structure,composition,crystallinity and morphology of fibers were characterized by XRD and SEM.The photocatalytic degradation rate of methylene blue under visible light irradiation was used to characterize the photocatalytic performance of nanocomposite fibers.The results show that the addition of GO powder reduced the agglomeration of TiO 2,improved its dispersion in the fiber,and increased the specific surface area of TiO 2/x-GO nanocomposite fibers by adding them into methylene blue solution.Furthermore,the heterojunction formed by GO and TiO 2 was beneficial to increasing the crystallinity and photocatalytic properties of TiO 2 nanocomposite fibers.The photocatalytic effect of TiO 2/2-GO was optimal,and the degradation rate of 99%was achieved in 60 min.In addition,the TiO 2/x-GO nano-composite fibers prepared by electrospinning prevented TiO 2 from loss,and could satisfy the application of industrial wastewater treatment.
Keywords:
electrospinning;titanium dioxide;graphene oxide;photocatalytic activity;composite materials