A review on recent developments in structural modification of TiO2 for food packaging applications

IF 9.1 2区 化学 Q1 CHEMISTRY, INORGANIC & NUCLEAR
Piyumi Kodithuwakku , Dilushan R. Jayasundara , Imalka Munaweera , Randika Jayasinghe , Tharanga Thoradeniya , Manjula Weerasekera , Pulickel M. Ajayan , Nilwala Kottegoda
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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.

Abstract Image

二氧化钛在食品包装中的结构改性研究进展
二氧化钛的结构改性为开发具有可见光催化活性的先进功能材料提供了新的模板。为了实现二氧化钛作为食品涂料和包装中的抗菌材料的潜力,人们已经尝试了许多方法来修饰二氧化钛的带隙。本文综述了近年来基于TiO2的功能纳米杂化材料的研究进展,包括金属掺杂、非金属掺杂、共掺杂以及与二维纳米材料的杂化材料的研究进展。特别是,石墨烯掺杂TiO2制备的纳米杂化物为减小带隙开辟了一个新的平台,同时最大限度地减少了TiO2中电子对重组的固有缺点。在这篇综述中,对涉及结构修饰的机制的最新文献进行了广泛的分析,并以更大的科学深度介绍了所产生材料的电子和功能特性。此外,还将现有的结构改性技术与特别强调食品保存和减少收获后损失的应用进行了比较。并对其工业应用前景、未来发展方向和面临的挑战进行了展望。
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来源期刊
Progress in Solid State Chemistry
Progress in Solid State Chemistry 化学-无机化学与核化学
CiteScore
14.10
自引率
3.30%
发文量
12
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.
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