{"title":"Preparation and Adsorption Photocatalytic Properties of PVA/TiO<sub>2</sub> Colloidal Photonic Crystal Films.","authors":"Zhangyi Qian, Menghan Wang, Junling Li, Zhaoran Chu, Wenwei Tang, Cheng Chen","doi":"10.3390/gels10080520","DOIUrl":null,"url":null,"abstract":"<p><p>Polyvinyl alcohol (PVA)/TiO<sub>2</sub>/colloidal photonic crystal (CPC) films with photocatalytic properties are presented, where TiO<sub>2</sub> nanoparticles were introduced into the PVA gel network. Such PVA/TiO<sub>2</sub>/CPC films possess three-dimensional periodic structures that are supported with a PVA/TiO<sub>2</sub> 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<sub>2</sub>/CPC catalyst films showed better properties as the degradation of methylene blue (MB) by the PVA/TiO<sub>2</sub>/CPC film catalyst in 4 h was 77~90%, while the degradation of MB by the PVA/TiO<sub>2</sub> film was 33% in 4 h, indicating that the photonic crystal structure was 2.3~2.7 times more effective than that of the bulk structure.</p>","PeriodicalId":12506,"journal":{"name":"Gels","volume":"10 8","pages":""},"PeriodicalIF":5.3000,"publicationDate":"2024-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11354077/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Gels","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.3390/gels10080520","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"POLYMER SCIENCE","Score":null,"Total":0}
引用次数: 0
Abstract
Polyvinyl alcohol (PVA)/TiO2/colloidal photonic crystal (CPC) films with photocatalytic properties are presented, where TiO2 nanoparticles were introduced into the PVA gel network. Such PVA/TiO2/CPC films possess three-dimensional periodic structures that are supported with a PVA/TiO2 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/TiO2/CPC catalyst films showed better properties as the degradation of methylene blue (MB) by the PVA/TiO2/CPC film catalyst in 4 h was 77~90%, while the degradation of MB by the PVA/TiO2 film was 33% in 4 h, indicating that the photonic crystal structure was 2.3~2.7 times more effective than that of the bulk structure.
期刊介绍：
The journal Gels (ISSN 2310-2861) is an international, open access journal on physical (supramolecular) and chemical gel-based materials. Our aim is to encourage scientists to publish their experimental and theoretical results in as much detail as possible. Therefore, there is no restriction on the maximum length of the papers, and full experimental details must be provided so that the results can be reproduced. Short communications, full research papers and review papers are accepted formats for the preparation of the manuscripts.
Gels aims to serve as a reference journal with a focus on gel materials for researchers working in both academia and industry. Therefore, papers demonstrating practical applications of these materials are particularly welcome. Occasionally, invited contributions (i.e., original research and review articles) on emerging issues and high-tech applications of gels are published as special issues.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
