Hydrophobic Porous Polymer Films for the Degradation of Poorly Water-Soluble Dyes by Immobilization of Visible-Light-Responsive Photocatalysts

IF 5.6 3区工程技术 Q2 ENGINEERING, ENVIRONMENTAL

Journal of Polymers and the Environment Pub Date : 2026-10-15 DOI:10.1007/s10924-026-04016-w

Komal Prajapati, Sreejith Sreenivasan, Bokyoung Shin, Do Sung Huh

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Abstract

Hydrophobic porous polymer films immobilized with a visible-light-responsive ZnSe/ZnTe hybrid were fabricated using a modified breath figure method to create a reusable photocatalytic platform for poorly water-soluble pollutants. The key innovation of this platform lies in combining hydrophobic pore-confined enrichment of poorly water-soluble molecules with an immobilized visible-light-responsive photocatalyst, thereby increasing molecular accessibility to the active interfaces. Photocatalytic degradation was evaluated after adsorption–desorption equilibrium under dark conditions to exclude the contribution of initial dye adsorption. Using alizarin as a model poorly water-soluble dye, the porous films exhibited markedly enhanced visible-light degradation compared with compositionally identical flat films, demonstrating the functional advantage of the porous architecture. The immobilized porous films retained over 90% of their initial degradation efficiency after five consecutive reuse cycles. These results demonstrate that hydrophobic porous polymer architecture can function not only as a photocatalyst support but also as a confined interfacial environment that improves the accessibility and degradation of poorly water-soluble pollutants.

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用可见光响应光催化剂固定化降解难水溶性染料的疏水多孔聚合物膜

采用改进的呼吸图方法制备了可见光响应型ZnSe/ZnTe杂化物固定的疏水多孔聚合物膜，为难水溶性污染物创建了可重复使用的光催化平台。该平台的关键创新之处在于将难水溶性分子的疏水孔限制富集与固定化可见光响应光催化剂相结合，从而增加了分子对活性界面的可及性。光催化降解在黑暗条件下的吸附-解吸平衡后进行评估，以排除初始染料吸附的贡献。以茜素为模型低水溶性染料，与组成相同的平面膜相比，多孔膜表现出明显增强的可见光降解，证明了多孔结构的功能优势。在连续5次重复使用后，固定化多孔膜的初始降解效率仍保持在90%以上。这些结果表明，疏水多孔聚合物结构不仅可以作为光催化剂载体，还可以作为一个受限的界面环境，提高难水溶性污染物的可及性和降解性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Polymers and the Environment 工程技术-高分子科学

CiteScore

9.50

自引率

7.50%

发文量

297

审稿时长

9 months

期刊介绍： The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.