{"title":"A review on recent developments in structural modification of TiO2 for food packaging applications","authors":"Piyumi Kodithuwakku , Dilushan R. Jayasundara , Imalka Munaweera , Randika Jayasinghe , Tharanga Thoradeniya , Manjula Weerasekera , Pulickel M. Ajayan , Nilwala Kottegoda","doi":"10.1016/j.progsolidstchem.2022.100369","DOIUrl":null,"url":null,"abstract":"<div><p><span><span>Structural modification of titanium dioxide has offered a novel template to develop advanced functional materials which demonstrate visible light </span>photocatalytic activity. There had been many attempts to modify the band gap of TiO</span><sub>2</sub> in order to realize its potential as an antimicrobial material in food coatings and packaging. This review gathers most recent advancements of developing TiO<sub>2</sub><span><span> based functional nanohybrids which include doping with metals, non-metals, co-doping, and development of hybrids with 2-D </span>nanomaterials. In particular, nanohybrids prepared with of TiO</span><sub>2</sub> with graphene incorporation has opened up a novel platform to reduce the band gap while minimizing the inherent drawback of electron pair recombination in TiO<sub>2</sub>. In this review, critical analysis of the recent literature on the mechanisms involved in structural modifications are discussed broadly and the electronic and functional properties of resulting materials are presented with a greater scientific depth. In addition, the available structural modification techniques have been compared with a particular emphasis on food preservation and post-harvest loss mitigation applications. More importantly, an outlook on the industrial applications, future directions and challenges have been suggested and discussed.</p></div>","PeriodicalId":415,"journal":{"name":"Progress in Solid State Chemistry","volume":null,"pages":null},"PeriodicalIF":9.1000,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Progress in Solid State Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0079678622000231","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
引用次数: 6
Abstract
Structural modification of titanium dioxide has offered a novel template to develop advanced functional materials which demonstrate visible light photocatalytic activity. There had been many attempts to modify the band gap of TiO2 in order to realize its potential as an antimicrobial material in food coatings and packaging. This review gathers most recent advancements of developing TiO2 based functional nanohybrids which include doping with metals, non-metals, co-doping, and development of hybrids with 2-D nanomaterials. In particular, nanohybrids prepared with of TiO2 with graphene incorporation has opened up a novel platform to reduce the band gap while minimizing the inherent drawback of electron pair recombination in TiO2. In this review, critical analysis of the recent literature on the mechanisms involved in structural modifications are discussed broadly and the electronic and functional properties of resulting materials are presented with a greater scientific depth. In addition, the available structural modification techniques have been compared with a particular emphasis on food preservation and post-harvest loss mitigation applications. More importantly, an outlook on the industrial applications, future directions and challenges have been suggested and discussed.
期刊介绍:
Progress in Solid State Chemistry offers critical reviews and specialized articles written by leading experts in the field, providing a comprehensive view of solid-state chemistry. It addresses the challenge of dispersed literature by offering up-to-date assessments of research progress and recent developments. Emphasis is placed on the relationship between physical properties and structural chemistry, particularly imperfections like vacancies and dislocations. The reviews published in Progress in Solid State Chemistry emphasize critical evaluation of the field, along with indications of current problems and future directions. Papers are not intended to be bibliographic in nature but rather to inform a broad range of readers in an inherently multidisciplinary field by providing expert treatises oriented both towards specialists in different areas of the solid state and towards nonspecialists. The authorship is international, and the subject matter will be of interest to chemists, materials scientists, physicists, metallurgists, crystallographers, ceramists, and engineers interested in the solid state.