聚乙烯醇/二氧化钛胶体光子晶体薄膜的制备及其吸附光催化性能
Preparation and Adsorption Photocatalytic Properties of PVA/TiO Colloidal Photonic Crystal Films.
作者信息
Qian Zhangyi, Wang Menghan, Li Junling, Chu Zhaoran, Tang Wenwei, Chen Cheng
机构信息
Shanghai Key Laboratory of Engineering Materials Application and Evaluation, School of Energy and Materials, Shanghai Polytechnic University, Shanghai 201209, China.
Shanghai Thermophysical Properties Big Data Professional Technical Service Platform, Shanghai Engineering Research Center of Advanced Thermal Functional Materials, Shanghai 201209, China.
出版信息
Gels. 2024 Aug 7;10(8):520. doi: 10.3390/gels10080520.
Polyvinyl alcohol (PVA)/TiO/colloidal photonic crystal (CPC) films with photocatalytic properties are presented, where TiO nanoparticles were introduced into the PVA gel network. Such PVA/TiO/CPC films possess three-dimensional periodic structures that are supported with a PVA/TiO composite gel. The unique structural color of CPCs can indicate the process of material preparation, adsorption, and desorption. The shift of diffraction peaks of CPCs can be more accurately determined using fiber-optic spectroscopy. The effect of the PVA/TiO/CPC catalyst films showed better properties as the degradation of methylene blue (MB) by the PVA/TiO/CPC film catalyst in 4 h was 7790%, while the degradation of MB by the PVA/TiO film was 33% in 4 h, indicating that the photonic crystal structure was 2.32.7 times more effective than that of the bulk structure.
本文介绍了具有光催化性能的聚乙烯醇（PVA）/二氧化钛（TiO）/胶体光子晶体（CPC）薄膜，其中TiO纳米颗粒被引入到PVA凝胶网络中。这种PVA/TiO/CPC薄膜具有三维周期性结构，由PVA/TiO复合凝胶支撑。CPC独特的结构颜色可以指示材料制备、吸附和解吸过程。使用光纤光谱可以更准确地确定CPC衍射峰的移动。PVA/TiO/CPC催化剂薄膜的效果更佳，因为PVA/TiO/CPC薄膜催化剂在4小时内对亚甲基蓝（MB）的降解率为77%90%，而PVA/TiO薄膜在4小时内对MB的降解率为33%，这表明光子晶体结构的效率是块状结构的2.32.7倍。
Zotero 插件