Chao-Wei Luo , Hao-Hua Huang , Xiong Jie , Di-Yang Peng , Chao-Rong Chen , Hong-Yan Zeng
{"title":"fe掺杂NH2-MIL-125（Ti）增强光氧化/还原性能","authors":"Chao-Wei Luo , Hao-Hua Huang , Xiong Jie , Di-Yang Peng , Chao-Rong Chen , Hong-Yan Zeng","doi":"10.1016/j.molstruc.2025.141844","DOIUrl":null,"url":null,"abstract":"<div><div>To improve the light-harvesting capability and electron-hole separation efficiency, a novel Fe-doped NH<sub>2</sub>-MIL-125(Ti) (Fe-MOF(Ti)) photocatalyst was prepared via one-step solvothermal method. The band structure, light-absorption capacity and photocatalytic performances of the Fe-MOF(Ti) were improved by adjusting the Fe-doping amount in the NH<sub>2</sub>-MIL-125(Ti). The moderate Fe-doping facilitated the visible-light capture and separation of photogenerated charge carriers, contributing to the photocatalytic activity for Cr(VI) reduction and methyl orange (MO) degradation under visible-light. As expected, the optimal Fe<sub>3.0</sub>-MOF(Ti) signified enhanced photooxidation-reduction properties in the absent of additives, which Cr(VI) reduction and MO degradation efficiencies were 1.5 and 1.2 times than those of the pristine NH<sub>2</sub>-MIL-125(Ti). Furthermore, the possible photocatalytic mechanisms for Cr(VI) reduction and MO degradation over the Fe-MOF(Ti) were proposed, respectively. The present work paved a way to design and prepare high-performance MOF-based photocatalysts for environmental remediation.</div></div>","PeriodicalId":16414,"journal":{"name":"Journal of Molecular Structure","volume":"1334 ","pages":"Article 141844"},"PeriodicalIF":4.7000,"publicationDate":"2025-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fe-doped NH2-MIL-125(Ti) for enhanced photo-oxidation/reduction properties\",\"authors\":\"Chao-Wei Luo , Hao-Hua Huang , Xiong Jie , Di-Yang Peng , Chao-Rong Chen , Hong-Yan Zeng\",\"doi\":\"10.1016/j.molstruc.2025.141844\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>To improve the light-harvesting capability and electron-hole separation efficiency, a novel Fe-doped NH<sub>2</sub>-MIL-125(Ti) (Fe-MOF(Ti)) photocatalyst was prepared via one-step solvothermal method. The band structure, light-absorption capacity and photocatalytic performances of the Fe-MOF(Ti) were improved by adjusting the Fe-doping amount in the NH<sub>2</sub>-MIL-125(Ti). The moderate Fe-doping facilitated the visible-light capture and separation of photogenerated charge carriers, contributing to the photocatalytic activity for Cr(VI) reduction and methyl orange (MO) degradation under visible-light. As expected, the optimal Fe<sub>3.0</sub>-MOF(Ti) signified enhanced photooxidation-reduction properties in the absent of additives, which Cr(VI) reduction and MO degradation efficiencies were 1.5 and 1.2 times than those of the pristine NH<sub>2</sub>-MIL-125(Ti). Furthermore, the possible photocatalytic mechanisms for Cr(VI) reduction and MO degradation over the Fe-MOF(Ti) were proposed, respectively. The present work paved a way to design and prepare high-performance MOF-based photocatalysts for environmental remediation.</div></div>\",\"PeriodicalId\":16414,\"journal\":{\"name\":\"Journal of Molecular Structure\",\"volume\":\"1334 \",\"pages\":\"Article 141844\"},\"PeriodicalIF\":4.7000,\"publicationDate\":\"2025-07-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Molecular Structure\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0022286025005307\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2025/2/26 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Molecular Structure","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0022286025005307","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/2/26 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Fe-doped NH2-MIL-125(Ti) for enhanced photo-oxidation/reduction properties
To improve the light-harvesting capability and electron-hole separation efficiency, a novel Fe-doped NH2-MIL-125(Ti) (Fe-MOF(Ti)) photocatalyst was prepared via one-step solvothermal method. The band structure, light-absorption capacity and photocatalytic performances of the Fe-MOF(Ti) were improved by adjusting the Fe-doping amount in the NH2-MIL-125(Ti). The moderate Fe-doping facilitated the visible-light capture and separation of photogenerated charge carriers, contributing to the photocatalytic activity for Cr(VI) reduction and methyl orange (MO) degradation under visible-light. As expected, the optimal Fe3.0-MOF(Ti) signified enhanced photooxidation-reduction properties in the absent of additives, which Cr(VI) reduction and MO degradation efficiencies were 1.5 and 1.2 times than those of the pristine NH2-MIL-125(Ti). Furthermore, the possible photocatalytic mechanisms for Cr(VI) reduction and MO degradation over the Fe-MOF(Ti) were proposed, respectively. The present work paved a way to design and prepare high-performance MOF-based photocatalysts for environmental remediation.
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The Journal of Molecular Structure is dedicated to the publication of full-length articles and review papers, providing important new structural information on all types of chemical species including:
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