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材料导报  2026, Vol. 40 Issue (7): 25020174-7    https://doi.org/10.11896/cldb.25020174
  高分子与聚合物基复合材料 |
PVDF-HFP柔性压电-光催化薄膜的制备及催化性能研究
董陈1,†, 马泽群2,†, 张志燃1, 汪庆辉1, 张旖1,*, 董延茂1,*
1 苏州科技大学化学与生命科学学院,江苏 苏州 215009
2 苏州科技大学材料科学与工程学院,江苏 苏州 215009
Preparation of PVDF-HFP Flexible Piezo-photocatalytic Membrane and Its Catalytic Performance
DONG Chen1,†, MA Zequn2,†, ZHANG Zhiran1, WANG Qinghui1, ZHANG Yi1,*, DONG Yanmao1,*
1 School of Chemistry and Life Science, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu, China
2 Schoolof Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, Jiangsu, China
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摘要 在众多水污染处理方法中,压电-光催化被认为是一种效果显著的协同策略。使用溶剂热法制备了h-BN/TiO2纳米粒子,然后通过相转化法与PVDF-HFP复合,制备了一系列柔性复合膜,并研究了复合膜在光催化、压电催化和压电-光催化条件下降解RhB的性能。研究表明,添加8%(质量分数)的h-BN/TiO2纳米粒子的复合膜在压电-光催化条件下对RhB的降解效果最佳,在120 min时,降解率可达94.53%,光催化和压电催化条件下,降解率分别只有58.83%和63.75%。这是由于PVDF-HFP的压电效应形成的内建电场增强了h-BN/TiO2光生电子与空穴的分离效率,同时其内建电场能提供足够的电势来发生氧化还原反应促进·O2-和·OH的产生。另外,该柔性薄膜可避免对环境造成二次污染,具有很强的可回收性。
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董陈
马泽群
张志燃
汪庆辉
张旖
董延茂
关键词:  h-BN/TiO2  PVDF-HFP  压电-光催化  柔性薄膜    
Abstract: Among various water pollution treatment strategies, the piezo-photocatalytic approach has emerged as a promising synergistic methodology. A flexible h-BN/TiO2/PVDF-HFP composite membrane was fabricated through solvothermal synthesis of h-BN/TiO2 nanoparticles followed by phase-inversion integration with PVDF-HFP, the photocatalytic, piezoelectric catalytic and piezo-photocatalytic degradation of RhB were stu-died. Under simultaneous light irradiation and mechanical vibration, the membrane containing 8wt% h-BN/TiO2 achieved 94.53% RhB degradation within 120 min, significantly outperforming standalone photocatalytic (58.83%) and piezocatalytic (63.75%) processes. Mechanistic studies indicate that the piezoelectric polarization of PVDF-HFP establishes a built-in electric field, which synergistically suppresses charge recombination in the h-BN/TiO2 nanoparticles and enhances redox kinetics to boost reactive oxygen species (·O2- and ·OH) generation. Furthermore, the composite membrane also demonstrated excellent reusability and stability without secondary contamination.
Key words:  h-BN/TiO2    PVDF-HFP    piezo-photocatalytic    flexible membrane
发布日期:  2026-04-16
ZTFLH:  O643  
基金资助: 国家自然科学基金(22302139;22402141)
通讯作者:  *张旖,博士,苏州科技大学化学与生命科学学院讲师。主要从事电活性材料、功能界面组装材料、光电催化材料等方面的研究。zhangyi@usts.edu.cn
董延茂,博士,苏州科技大学教授。主要研究领域为功能高分子纳米复合材料。环境功能材料:固废改性,资源回收与循环利用。功能高分子材料:设计新型环境友好功能高分子及其纳米复合材料,开展阻燃、自修复机理研究。dongyanmao@163.com   
作者简介:  董陈,苏州科技大学化学与生命科学学院硕士研究生,在张旖老师和董延茂老师的指导下进行研究。目前主要研究领域为压电高分子催化材料的制备及性质。
马泽群,博士,苏州科技大学材料科学与工程学院讲师。研究领域为基于胶原蛋白复合材料在骨修复方面的应用;基于层层自组装构筑多功能薄膜、纳米粒子在光电催化、传感及生物治疗方面的应用。
†共同第一作者
引用本文:    
董陈, 马泽群, 张志燃, 汪庆辉, 张旖, 董延茂. PVDF-HFP柔性压电-光催化薄膜的制备及催化性能研究[J]. 材料导报, 2026, 40(7): 25020174-7.
DONG Chen, MA Zequn, ZHANG Zhiran, WANG Qinghui, ZHANG Yi, DONG Yanmao. Preparation of PVDF-HFP Flexible Piezo-photocatalytic Membrane and Its Catalytic Performance. Materials Reports, 2026, 40(7): 25020174-7.
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https://www.mater-rep.com/CN/10.11896/cldb.25020174  或          https://www.mater-rep.com/CN/Y2026/V40/I7/25020174
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