Chemical Research in Chinese Universities ›› 2016, Vol. 32 ›› Issue (5): 854-861.doi: 10.1007/s40242-016-6088-4

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Fabrication and Photocatalytic Properties of Water-stable Ag/PW12/PVA Nanocomposites

SUI Chunhong1,2, WANG Zhaoyi3, WANG Cheng2, ZHOU Guangdong1, CHENG Tiexin1   

  1. 1. College of Chemistry, Jilin University, Changchun 130021, P. R. China;
    2. Department of Chemistry, Jilin Medical University, Jilin 132013, P. R. China;
    3. School of Printing and Packaging, Wuhan University, Wuhan 430072, P. R China
  • Received:2016-03-11 Revised:2016-06-03 Online:2016-10-01 Published:2016-08-01
  • Contact: CHENG Tiexin E-mail:ctx@jlu.edu.cn
  • Supported by:

    Supported by the Natural Science Foundation Project in Science and Technology Development Planning of Jilin Province, China(No.20150101131JC) and the Science and Technology Research Project of the Education Department of Jilin Province, China(No.2015-405).

Abstract:

A kind of water-stable phosphotungstic acid/polyvinyl alcohol(PW12/PVA) fiber was prepared by thermal or chemical crosslinking treatments with the help of electrospinning, and silver nanoparticles(NPs) modified fibrous precursor was successfully obtained by photoreduced method. The nanocomposites were characterized by transformation infrared spectroscopy(FTIR), UV-Vis diffuse reflection spectroscopy(DRS), field environmental scanning electron microscopy(FE-SEM), transmission electron microscopy(TEM) and X-ray photoelectron spectroscopy(XPS). The results indicate that the sizes of silver NPs are about 20 or 40 nm on thermally or glutaraldehyde(GA) vapor crosslinked PW12/PVA fiber, respectively. As a photocatalyst, PW12/PVA fiber possesses high surface area to volume ratio, stable recyclability, and efficient transportation of electrons under visible light. The nanohybrids exhibit excellent photocatalytic activity for the degradation of Rhodamin B than PW12/PVA nanofiber.

Key words: Electrospinning, Phosphotungstic acid, Silver nanoparticle, Photocatalytic activity