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Two-DimensionalnCu-Porphyrin Metal–OrganicnFramework Nanosheet-Supported Flaky TiO2 as an EfficientnVisible-Light-Driven Photocatalyst for Dye Degradation and Cr(VI)nReduction 二维 ncu -卟啉金属-有机nFramework纳米片负载片状TiO&lt；sub>2</sub&gt；作为染料降解和Cr(VI)n还原的高效可见光驱动光催化剂

Figshare Pub Date : 1753-01-01 DOI: 10.1021/acs.langmuir.3c02148.s001

Wenjing Zhu (487218), Zhinan Xia (12417663), Bingfeng Shi (2660425), Changli Lü (5339687)

{"title":"Two-DimensionalnCu-Porphyrin Metal–OrganicnFramework Nanosheet-Supported Flaky TiO2 as an EfficientnVisible-Light-Driven Photocatalyst for Dye Degradation and Cr(VI)nReduction","authors":"Wenjing Zhu (487218), Zhinan Xia (12417663), Bingfeng Shi (2660425), Changli Lü (5339687)","doi":"10.1021/acs.langmuir.3c02148.s001","DOIUrl":"https://doi.org/10.1021/acs.langmuir.3c02148.s001","url":null,"abstract":"A series of 2D M(Cu, Zn, Co, and Mn)-TCPP MOFs/TiO2 binarynnanocomposites (TCPP = tetrakis(4-carboxyphenyl)porphyrin) were constructednby solvothermal in situ loading of flaky TiO2 on the surfacenof 2D metal–organic frameworks (MOFs). The influence of differentncoordination metals on the catalytic activity was studied, and itnwas found that the 2D Cu-TCPP MOFs/TiO2 nanocomposite exhibitednthe best photo-Fenton performance. The superior property can be attributednto the high absorption coefficient and ultrathin two-dimensional structurenof the 2D Cu-TCPP MOFs nanosheets. Meanwhile, the 2D Cu-TCPP MOFs/TiO2 II heterostructure can effectively promote the separationnand transfer of photoformed carriers. Moreover, under visible irradiation,nthe optimized 2D Cu-TCPP MOFs/TiO2 composite can convertn99.9% of Cr(VI) to Cr(III) within 60 min with methanol as the holenscavenger at pH 3.14. Also, the photocatalytic performance of 2D Cu-TCPPnMOFs/TiO2 was maintained after five reaction cycles. Furthermore,nthe proposed visible-light-driven photocatalysis mechanism of then2D Cu-MOFs/TiO2 composite was reasonably derived accordingnto experimental results. This study demonstrates the potential ofnbuilding efficient TiO2-based visible light photocatalystsnwith 2D metal-porphyrin MOFs.","PeriodicalId":521556,"journal":{"name":"Figshare","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"1753-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147881418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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