{"title":"Quasi-MIL-101(Fe) with rich oxygen vacancies for boosted heterogeneous photo-Fenton reaction","authors":"Xin-Jie Li, Fei Wang, Jian-Feng Wang, Chong-Chen Wang, Peng Wang, Anping Wang, Xiao-Hong Yi","doi":"10.1016/j.seppur.2025.132510","DOIUrl":null,"url":null,"abstract":"Herein, a quasi-MOF, namely Q350-MIL-101(Fe), is produced <em>via</em> pyrolysis of MIL-101(Fe) under mild condition at 350 °C, in which its pore size is larger than the pristine MIL-101(Fe). Q350-MIL-101(Fe) is used to catalytically activate H<sub>2</sub>O<sub>2</sub> under UV light irradiation for sulfamethoxazole (SMX) decomposition, with degradation rate constant being 28 times higher than that of pristine MIL-101(Fe). The boosted photo-Fenton performance is attributed to the increased exposure of metal sites and the formation of oxygen vacancies (OVs) resulting from the controlled deligand. Finally, Q350-MIL-101(Fe) is immobilized on the graphite felt (GF) for continuous SMX (initial concentration being 10.0 mg/L) degradation, in which 100.0 % SMX degradation efficiency is realized up to 84.0 h. This work presents significant implications to enhance the photo-Fenton ability by constructing a quasi-MOF with rich catalytic sites and OVs for water purification.","PeriodicalId":427,"journal":{"name":"Separation and Purification Technology","volume":"86 1","pages":""},"PeriodicalIF":8.1000,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Separation and Purification Technology","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1016/j.seppur.2025.132510","RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
Herein, a quasi-MOF, namely Q350-MIL-101(Fe), is produced via pyrolysis of MIL-101(Fe) under mild condition at 350 °C, in which its pore size is larger than the pristine MIL-101(Fe). Q350-MIL-101(Fe) is used to catalytically activate H2O2 under UV light irradiation for sulfamethoxazole (SMX) decomposition, with degradation rate constant being 28 times higher than that of pristine MIL-101(Fe). The boosted photo-Fenton performance is attributed to the increased exposure of metal sites and the formation of oxygen vacancies (OVs) resulting from the controlled deligand. Finally, Q350-MIL-101(Fe) is immobilized on the graphite felt (GF) for continuous SMX (initial concentration being 10.0 mg/L) degradation, in which 100.0 % SMX degradation efficiency is realized up to 84.0 h. This work presents significant implications to enhance the photo-Fenton ability by constructing a quasi-MOF with rich catalytic sites and OVs for water purification.
期刊介绍：
Separation and Purification Technology is a premier journal committed to sharing innovative methods for separation and purification in chemical and environmental engineering, encompassing both homogeneous solutions and heterogeneous mixtures. Our scope includes the separation and/or purification of liquids, vapors, and gases, as well as carbon capture and separation techniques. However, it's important to note that methods solely intended for analytical purposes are not within the scope of the journal. Additionally, disciplines such as soil science, polymer science, and metallurgy fall outside the purview of Separation and Purification Technology. Join us in advancing the field of separation and purification methods for sustainable solutions in chemical and environmental engineering.
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