Weirui Chen , Yingjing Tian , Dongpo Liu , Yunqiang Yi , Xukai Li , Jing Wang , Liying Bin , Ping Li , Bing Tang , Laisheng Li
{"title":"揭示 F-Fe-Zn-MCM-41 在 O3/PMS 中增强水净化的机理","authors":"Weirui Chen , Yingjing Tian , Dongpo Liu , Yunqiang Yi , Xukai Li , Jing Wang , Liying Bin , Ping Li , Bing Tang , Laisheng Li","doi":"10.1016/j.apcatb.2023.123608","DOIUrl":null,"url":null,"abstract":"<div><p>To break the restriction of SO<sub>5</sub><sup>2-</sup> as the essential initiator in O<sub>3</sub><span>/PMS reaction during water purification, F-Fe-Zn-MCM-41 (FFeZn-M) was designed to enhance ibuprofen (IBP) degradation during O</span><sub>3</sub>/PMS process. The great electronegativity difference between Fe and Zn created an electron flow from Zn to Fe, which was further enhanced by electron withdrawing Si-F group. FFeZn-M changed the traditional interaction between PMS and O<sub>3</sub>. PMS would be adsorbed on the surface of Zn and acted as an electron donor. Meanwhile, O<sub>3</sub> received electrons from Fe site and was activated into ROS. With •OH and <sup>1</sup>O<sub>2</sub> as the main ROS, FFeZn-M/O<sub>3</sub>/PMS process achieved the complete IBP removal and a 60.9% mineralization rate, which was significantly higher over those of FFeZn-M/O<sub>3</sub> and FFeZn-M/PMS processes. FFeZn-M/O<sub>3</sub>/PMS behaved better at weak acidic and neutral condition rather than the basic condition required by conventional O<sub>3</sub>/PMS process. This study offered a novel catalyst design strategy for O<sub>3</sub>/PMS.</p></div>","PeriodicalId":244,"journal":{"name":"Applied Catalysis B: Environmental","volume":"345 ","pages":"Article 123608"},"PeriodicalIF":20.2000,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Unveiling the mechanism of enhanced water purification by F-Fe-Zn-MCM-41 in O3/PMS\",\"authors\":\"Weirui Chen , Yingjing Tian , Dongpo Liu , Yunqiang Yi , Xukai Li , Jing Wang , Liying Bin , Ping Li , Bing Tang , Laisheng Li\",\"doi\":\"10.1016/j.apcatb.2023.123608\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>To break the restriction of SO<sub>5</sub><sup>2-</sup> as the essential initiator in O<sub>3</sub><span>/PMS reaction during water purification, F-Fe-Zn-MCM-41 (FFeZn-M) was designed to enhance ibuprofen (IBP) degradation during O</span><sub>3</sub>/PMS process. The great electronegativity difference between Fe and Zn created an electron flow from Zn to Fe, which was further enhanced by electron withdrawing Si-F group. FFeZn-M changed the traditional interaction between PMS and O<sub>3</sub>. PMS would be adsorbed on the surface of Zn and acted as an electron donor. Meanwhile, O<sub>3</sub> received electrons from Fe site and was activated into ROS. With •OH and <sup>1</sup>O<sub>2</sub> as the main ROS, FFeZn-M/O<sub>3</sub>/PMS process achieved the complete IBP removal and a 60.9% mineralization rate, which was significantly higher over those of FFeZn-M/O<sub>3</sub> and FFeZn-M/PMS processes. FFeZn-M/O<sub>3</sub>/PMS behaved better at weak acidic and neutral condition rather than the basic condition required by conventional O<sub>3</sub>/PMS process. This study offered a novel catalyst design strategy for O<sub>3</sub>/PMS.</p></div>\",\"PeriodicalId\":244,\"journal\":{\"name\":\"Applied Catalysis B: Environmental\",\"volume\":\"345 \",\"pages\":\"Article 123608\"},\"PeriodicalIF\":20.2000,\"publicationDate\":\"2024-01-02\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Applied Catalysis B: Environmental\",\"FirstCategoryId\":\"1\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0926337323012511\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Catalysis B: Environmental","FirstCategoryId":"1","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0926337323012511","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Unveiling the mechanism of enhanced water purification by F-Fe-Zn-MCM-41 in O3/PMS
To break the restriction of SO52- as the essential initiator in O3/PMS reaction during water purification, F-Fe-Zn-MCM-41 (FFeZn-M) was designed to enhance ibuprofen (IBP) degradation during O3/PMS process. The great electronegativity difference between Fe and Zn created an electron flow from Zn to Fe, which was further enhanced by electron withdrawing Si-F group. FFeZn-M changed the traditional interaction between PMS and O3. PMS would be adsorbed on the surface of Zn and acted as an electron donor. Meanwhile, O3 received electrons from Fe site and was activated into ROS. With •OH and 1O2 as the main ROS, FFeZn-M/O3/PMS process achieved the complete IBP removal and a 60.9% mineralization rate, which was significantly higher over those of FFeZn-M/O3 and FFeZn-M/PMS processes. FFeZn-M/O3/PMS behaved better at weak acidic and neutral condition rather than the basic condition required by conventional O3/PMS process. This study offered a novel catalyst design strategy for O3/PMS.
期刊介绍：
Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including:
1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources.
2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes.
3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts.
4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells.
5.Catalytic reactions that convert wastes into useful products.
6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts.
7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems.
8.New catalytic combustion technologies and catalysts.
9.New catalytic non-enzymatic transformations of biomass components.
The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.
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