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Preparation of TiO2/Ag/GO/Nylon 6,6 nanofiber membrane by a novel electrospinning method and its photodegradation efficiency under visible light

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Abstract

With the development of industry in recent years, the problem associated with water pollution has been aggravated, and so this causes serious damage to our environment. One of the most effective ways to improve water pollution is the use of the "titanium dioxide (TiO2) photocatalytic method". For this reason, we prepared TiO2 photocatalyst with silver (Ag) and graphene oxide (GO) by means of sol–gel method to obtain TiO2/Ag, TiO2/GO and TiO2/Ag/GO three photocatalysts. We then employed the visible light as light source, the methylene blue as pollutants, the UV–Visible absorption spectrometer measurement, and so compared the removal fraction of the three photocatalysts. Among them, the TiO2/Ag/GO photocatalyst has the highest dye removal fraction (51.41 ± 5.58%). The comparison of the TiO2/Ag/GO photocatalyst with the best efficiency was made with commercially available P25 photocatalyst to block the UV light. By referring to the experiments on the UV light block, the removal fraction of TiO2/Ag/GO photocatalyst (48.71 ± 2.02%) was higher than commercially available P25 photocatalyst (25.66 ± 3.66%). In this study, in order to efficiently recover the used photocatalyst, a photocatalyst blended solution was prepared with different weight percentages of TiO2/Ag/GO photocatalyst and nylon (Nylon 6,6)/formic acid solution (8wt%). To that end, the technology of electrospinning was used to produce a nanofiber membrane (TiO2/Ag/GO/Nylon 6,6 NFM). Based on the experimental results, the 3.0wt% TiO2/Ag/GO/Nylon 6,6 nanofiber membrane has the best visible light removal fraction of methylene blue (90.52 ± 0.58%).

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The datasets generated during and/or analysed during the current study are available from the corresponding author on reasonable request.

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Authors and Affiliations

  1. Department of Chemical and Materials Engineering, National Yunlin University of Science and Technology, Douliu, Yunlin, Taiwan

    Yu-Hsun Nien, Ting-Yu Huang, Chih-Tsen Hsiao, Yen-Cheng Chang & Yan-Liang Lin

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  1. Yu-Hsun Nien
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  2. Ting-Yu Huang
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  3. Chih-Tsen Hsiao
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  4. Yen-Cheng Chang
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Correspondence to Yu-Hsun Nien.

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Nien, YH., Huang, TY., Hsiao, CT. et al. Preparation of TiO2/Ag/GO/Nylon 6,6 nanofiber membrane by a novel electrospinning method and its photodegradation efficiency under visible light. J Polym Res 29, 518 (2022). https://doi.org/10.1007/s10965-022-03379-7

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  • DOI: https://doi.org/10.1007/s10965-022-03379-7

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