Development of nanofibrous membranes incorporating WO3/TiO2/Ag3PO4 photocatalysts for the degradation of methylene blue

IF 2.8 4区化学 Q3 POLYMER SCIENCE

Journal of Polymer Research Pub Date : 2025-08-09 DOI:10.1007/s10965-025-04514-w

Yu-Hsun Nien, Ting-Yu Huang

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Abstract

In this study, WO₃/TiO₂ and WO₃/TiO₂/Ag₃PO₄ photocatalysts with different ratios were prepared using the sol-gel and precipitation methods. Additionally, to facilitate the recovery of photocatalysts from water, nylon 6,6 nanofiber membranes containing the photocatalysts (NFMWTAP) were fabricated using electrospinning and electrospray techniques. The adsorption and degradation of methylene blue under visible light were compared for different ratios of photocatalysts. The results showed that among the WO₃/TiO₂ samples with different weight percentages, 3 wt% WO₃/TiO₂ exhibited the highest methylene blue removal efficiency. Therefore, we synthesized WO₃/TiO₂/Ag₃PO₄ ((W/T)-(AP)) photocatalysts with different weight percentages using 3 wt% WO₃/TiO₂ as the base catalyst. When the ratio of WO₃/TiO₂ to Ag₃PO₄ was 5:5, the removal efficiency was the highest, achieving a dye removal rate of 99.60%. Meanwhile, the nylon 6,6 nanofiber membrane containing the photocatalyst achieved a dye removal rate of 99.18% after 30 min of dark adsorption followed by 1 h of visible light irradiation. Even after three cycles of reuse, the dye removal rate remained as high as 97.86%.

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WO3/TiO2/Ag3PO4光催化剂降解亚甲基蓝纳米纤维膜的研制

本研究采用溶胶-凝胶法和沉淀法制备了不同配比的WO3/TiO2和WO3/TiO2/Ag3PO4光催化剂。此外，为了方便从水中回收光催化剂，采用静电纺丝和电喷雾技术制备了含有光催化剂的尼龙6,6纳米纤维膜（NFMWTAP）。比较了不同配比的光催化剂对亚甲基蓝在可见光下的吸附和降解效果。结果表明，在不同重量百分比的WO3/TiO2样品中，3 wt%的WO3/TiO2对亚甲基蓝的去除率最高。因此，我们以3wt %的WO3/TiO2为基础催化剂，合成了不同重量百分比的WO3/TiO2/Ag3PO4 (（W/T)-(AP)）光催化剂。当WO3/TiO2与Ag3PO4的比例为5:5时，去除率最高，染料去除率为99.60%。同时，含光催化剂的尼龙6,6纳米纤维膜经过30 min的暗吸附和1 h的可见光照射后，染料去除率达到99.18%。即使经过三次循环使用，染料去除率仍高达97.86%。

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来源期刊

Journal of Polymer Research 化学-高分子科学

CiteScore

4.70

自引率

7.10%

发文量

472

审稿时长

3.6 months

期刊介绍： Journal of Polymer Research provides a forum for the prompt publication of articles concerning the fundamental and applied research of polymers. Its great feature lies in the diversity of content which it encompasses, drawing together results from all aspects of polymer science and technology. As polymer research is rapidly growing around the globe, the aim of this journal is to establish itself as a significant information tool not only for the international polymer researchers in academia but also for those working in industry. The scope of the journal covers a wide range of the highly interdisciplinary field of polymer science and technology, including: polymer synthesis; polymer reactions; polymerization kinetics; polymer physics; morphology; structure-property relationships; polymer analysis and characterization; physical and mechanical properties; electrical and optical properties; polymer processing and rheology; application of polymers; supramolecular science of polymers; polymer composites.