The enhanced photocatalytic activity of TiO2(B)/MIL-100(Fe) composite via Fe–O clusters†

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS

ACS Applied Bio Materials Pub Date : 2021-12-01 DOI:10.1039/D1NJ04569E

Tao Wang, Xiqing Liu, Mei Liu, Runhua Liao, Hongquan Zhan, Xiaoxue Qi, Yongqing Wang and Yanju Huang

{"title":"The enhanced photocatalytic activity of TiO2(B)/MIL-100(Fe) composite via Fe–O clusters†","authors":"Tao Wang, Xiqing Liu, Mei Liu, Runhua Liao, Hongquan Zhan, Xiaoxue Qi, Yongqing Wang and Yanju Huang","doi":"10.1039/D1NJ04569E","DOIUrl":null,"url":null,"abstract":"Black TiO2 and metal–organic frameworks (MOF) are great materials with light-harvesting ability, redox power and consequently catalytic activity. Here, the integration of MIL-100(Fe) with TiO2(B) composite was designed for photocatalytic application, which greatly promoted light-harvesting and charge transfer. As expected, the integrated TiO2(B)/MIL-100(Fe) composite showed high photocatalytic activity due to unique Fe–O–Ti bonds that were constructed, which acted as an electronic tunnel to reduce electronic transfer resistance between MIL-100(Fe) and TiO2(B). In addition, the presence of Fe–O clusters in MIL-100(Fe) can also promote the charge dissociation and improve catalytic activity via the Fe3+/Fe2+ redox cycle. This achievement would help us to understand and design charge transfer pathways in the integration of MOF/semiconductor photocatalysts.","PeriodicalId":2,"journal":{"name":"ACS Applied Bio Materials","volume":null,"pages":null},"PeriodicalIF":4.6000,"publicationDate":"2021-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Bio Materials","FirstCategoryId":"92","ListUrlMain":"https://pubs.rsc.org/en/content/articlelanding/2022/nj/d1nj04569e","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, BIOMATERIALS","Score":null,"Total":0}

引用次数: 3

Abstract

Black TiO₂ and metal–organic frameworks (MOF) are great materials with light-harvesting ability, redox power and consequently catalytic activity. Here, the integration of MIL-100(Fe) with TiO₂(B) composite was designed for photocatalytic application, which greatly promoted light-harvesting and charge transfer. As expected, the integrated TiO₂(B)/MIL-100(Fe) composite showed high photocatalytic activity due to unique Fe–O–Ti bonds that were constructed, which acted as an electronic tunnel to reduce electronic transfer resistance between MIL-100(Fe) and TiO₂(B). In addition, the presence of Fe–O clusters in MIL-100(Fe) can also promote the charge dissociation and improve catalytic activity via the Fe³⁺/Fe²⁺ redox cycle. This achievement would help us to understand and design charge transfer pathways in the integration of MOF/semiconductor photocatalysts.

Abstract Image

查看原文本刊更多论文

Fe - o簇†增强TiO2(B)/MIL-100(Fe)复合材料的光催化活性

黑色二氧化钛和金属有机框架(MOF)是一种极好的材料，具有光捕获能力、氧化还原能力和催化活性。本文设计了MIL-100(Fe)与TiO2(B)复合材料的集成光催化应用，极大地促进了光收集和电荷转移。正如预期的那样，集成的TiO2(B)/MIL-100(Fe)复合材料由于构建了独特的Fe - o - ti键而表现出很高的光催化活性，该键作为电子隧道降低了MIL-100(Fe)和TiO2(B)之间的电子转移阻力。此外，MIL-100(Fe)中Fe - o簇的存在也可以通过Fe3+/Fe2+氧化还原循环促进电荷解离，提高催化活性。这一成果将有助于我们理解和设计MOF/半导体光催化剂集成过程中的电荷转移途径。

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

ACS Applied Bio Materials Chemistry-Chemistry (all)

CiteScore

9.40

自引率

2.10%

发文量

464