Ferroelectric polarization effect on surface chemistry and photo-catalytic activity: A review

IF 8.2 1区化学 Q1 CHEMISTRY, PHYSICAL

Surface Science Reports Pub Date : 2016-03-01 DOI:10.1016/j.surfrep.2016.01.001

M.A. Khan, M.A. Nadeem, H. Idriss

{"title":"Ferroelectric polarization effect on surface chemistry and photo-catalytic activity: A review","authors":"M.A. Khan, M.A. Nadeem, H. Idriss","doi":"10.1016/j.surfrep.2016.01.001","DOIUrl":null,"url":null,"abstract":"<div>The current efficiency of various photocatalytic processes is limited by the recombination of photogenerated electron–hole pairs in the photocatalyst as well as the back-reaction of intermediate species. This review concentrates on the use of ferroelectric polarization to mitigate electron–hole recombination and back-reactions and therefore improve photochemical reactivity. Ferroelectric materials are considered as wide band gap polarizable semiconductors. Depending on the surface polarization, different regions of the surface experience different extents of band bending and promote different carriers to move to spatially different locations. This can lead to some interesting interactions at the surface such as spatially selective adsorption and surface redox reactions. This introductory review covers the fundamental properties of ferroelectric materials, effect of an internal electric field/polarization on charge carrier separation, effect of the polarization on the surface photochemistry and reviews the work done on the use of these ferroelectric materials for photocatalytic applications such as dye degradation and water splitting. The manipulation of photogenerated charge carriers through an internal electric field/surface polarization is a promising strategy for the design of improved photocatalysts.</div>","PeriodicalId":434,"journal":{"name":"Surface Science Reports","volume":null,"pages":null},"PeriodicalIF":8.2000,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/j.surfrep.2016.01.001","citationCount":"143","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Surface Science Reports","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0167572916000029","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 143

Abstract

The current efficiency of various photocatalytic processes is limited by the recombination of photogenerated electron–hole pairs in the photocatalyst as well as the back-reaction of intermediate species. This review concentrates on the use of ferroelectric polarization to mitigate electron–hole recombination and back-reactions and therefore improve photochemical reactivity. Ferroelectric materials are considered as wide band gap polarizable semiconductors. Depending on the surface polarization, different regions of the surface experience different extents of band bending and promote different carriers to move to spatially different locations. This can lead to some interesting interactions at the surface such as spatially selective adsorption and surface redox reactions. This introductory review covers the fundamental properties of ferroelectric materials, effect of an internal electric field/polarization on charge carrier separation, effect of the polarization on the surface photochemistry and reviews the work done on the use of these ferroelectric materials for photocatalytic applications such as dye degradation and water splitting. The manipulation of photogenerated charge carriers through an internal electric field/surface polarization is a promising strategy for the design of improved photocatalysts.

查看原文本刊更多论文

铁电极化对表面化学和光催化活性的影响

各种光催化工艺的电流效率受到光催化剂中产生的电子-空穴对的复合以及中间物质的反反应的限制。本文综述了利用铁电极化来减轻电子-空穴复合和反反应，从而提高光化学反应活性。铁电材料被认为是宽带隙极化半导体。根据表面极化的不同，表面的不同区域会经历不同程度的波段弯曲，从而促进不同的载流子向空间不同的位置移动。这可能导致一些有趣的表面相互作用，如空间选择性吸附和表面氧化还原反应。本文介绍了铁电材料的基本性质、内部电场/极化对载流子分离的影响、极化对表面光化学的影响，并综述了铁电材料在染料降解和水分解等光催化应用方面的研究进展。通过内部电场/表面极化来操纵光生电荷载流子是设计改进光催化剂的一种很有前途的策略。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Surface Science Reports 化学-物理：凝聚态物理

CiteScore

15.90

自引率

2.00%

发文量

审稿时长

178 days

期刊介绍： Surface Science Reports is a journal that specializes in invited review papers on experimental and theoretical studies in the physics, chemistry, and pioneering applications of surfaces, interfaces, and nanostructures. The topics covered in the journal aim to contribute to a better understanding of the fundamental phenomena that occur on surfaces and interfaces, as well as the application of this knowledge to the development of materials, processes, and devices. In this journal, the term "surfaces" encompasses all interfaces between solids, liquids, polymers, biomaterials, nanostructures, soft matter, gases, and vacuum. Additionally, the journal includes reviews of experimental techniques and methods used to characterize surfaces and surface processes, such as those based on the interactions of photons, electrons, and ions with surfaces.