Langhui Wu , Ye Liang , Bo Zhang , Shenzhen Cong , Shenyi Tang , Kangkang Jiang , Liping Luan , Zhi Wang , Xinlei Liu
{"title":"对 MOF UiO-66-NH₂ 膜进行后合成修饰以实现高效甲醇/有机物分离","authors":"Langhui Wu , Ye Liang , Bo Zhang , Shenzhen Cong , Shenyi Tang , Kangkang Jiang , Liping Luan , Zhi Wang , Xinlei Liu","doi":"10.1016/j.memsci.2024.123475","DOIUrl":null,"url":null,"abstract":"<div><div>The separation of MeOH/organic mixtures poses a significant challenge in the chemical industry. In this study, metal-organic framework UiO-66-NH<sub>2</sub> membranes prepared by a secondary solvothermal method were employed for MeOH/DMC, MeOH/Tol and MeOH/MTBE separation. The membrane performance was significantly boosted by post-synthetic modification with oxalyl chloride (OC), succinyl chloride (SC), and salicylaldehyde (SA). The modified UiO-66-NH<sub>2</sub>-OC and UiO-66-NH<sub>2</sub>-SC membranes displayed simultaneous improvement of the separation factors and MeOH fluxes. The modified UiO-66-NH<sub>2</sub>-SA membranes exhibited an order of magnitude enhancement of separation factors, with comparable MeOH fluxes. Specifically, separation factors of 3220 and 28,000 with MeOH fluxes of 1.18 kg m<sup>−2</sup> h<sup>−1</sup>and 1.03 kg m<sup>−2</sup> h<sup>−1</sup> for 5/95 wt% MeOH/Tol and 5/95 wt% MeOH/MTBE separation at 40 °C, respectively, were delivered by UiO-66-NH<sub>2</sub>-SA membranes. Moreover, the UiO-66-NH<sub>2</sub>-SA membranes demonstrated good stability over 120 h's evaluation. This study offers a promising post-synthetic approach and a class of membrane materials for efficient MeOH/organic separation.</div></div>","PeriodicalId":368,"journal":{"name":"Journal of Membrane Science","volume":null,"pages":null},"PeriodicalIF":8.4000,"publicationDate":"2024-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Post-synthetic modification of MOF UiO-66-NH₂ membranes for efficient methanol/organic separation\",\"authors\":\"Langhui Wu , Ye Liang , Bo Zhang , Shenzhen Cong , Shenyi Tang , Kangkang Jiang , Liping Luan , Zhi Wang , Xinlei Liu\",\"doi\":\"10.1016/j.memsci.2024.123475\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The separation of MeOH/organic mixtures poses a significant challenge in the chemical industry. In this study, metal-organic framework UiO-66-NH<sub>2</sub> membranes prepared by a secondary solvothermal method were employed for MeOH/DMC, MeOH/Tol and MeOH/MTBE separation. The membrane performance was significantly boosted by post-synthetic modification with oxalyl chloride (OC), succinyl chloride (SC), and salicylaldehyde (SA). The modified UiO-66-NH<sub>2</sub>-OC and UiO-66-NH<sub>2</sub>-SC membranes displayed simultaneous improvement of the separation factors and MeOH fluxes. The modified UiO-66-NH<sub>2</sub>-SA membranes exhibited an order of magnitude enhancement of separation factors, with comparable MeOH fluxes. Specifically, separation factors of 3220 and 28,000 with MeOH fluxes of 1.18 kg m<sup>−2</sup> h<sup>−1</sup>and 1.03 kg m<sup>−2</sup> h<sup>−1</sup> for 5/95 wt% MeOH/Tol and 5/95 wt% MeOH/MTBE separation at 40 °C, respectively, were delivered by UiO-66-NH<sub>2</sub>-SA membranes. Moreover, the UiO-66-NH<sub>2</sub>-SA membranes demonstrated good stability over 120 h's evaluation. This study offers a promising post-synthetic approach and a class of membrane materials for efficient MeOH/organic separation.</div></div>\",\"PeriodicalId\":368,\"journal\":{\"name\":\"Journal of Membrane Science\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":8.4000,\"publicationDate\":\"2024-11-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Membrane Science\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S037673882401069X\",\"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}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Membrane Science","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S037673882401069X","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}
Post-synthetic modification of MOF UiO-66-NH₂ membranes for efficient methanol/organic separation
The separation of MeOH/organic mixtures poses a significant challenge in the chemical industry. In this study, metal-organic framework UiO-66-NH2 membranes prepared by a secondary solvothermal method were employed for MeOH/DMC, MeOH/Tol and MeOH/MTBE separation. The membrane performance was significantly boosted by post-synthetic modification with oxalyl chloride (OC), succinyl chloride (SC), and salicylaldehyde (SA). The modified UiO-66-NH2-OC and UiO-66-NH2-SC membranes displayed simultaneous improvement of the separation factors and MeOH fluxes. The modified UiO-66-NH2-SA membranes exhibited an order of magnitude enhancement of separation factors, with comparable MeOH fluxes. Specifically, separation factors of 3220 and 28,000 with MeOH fluxes of 1.18 kg m−2 h−1and 1.03 kg m−2 h−1 for 5/95 wt% MeOH/Tol and 5/95 wt% MeOH/MTBE separation at 40 °C, respectively, were delivered by UiO-66-NH2-SA membranes. Moreover, the UiO-66-NH2-SA membranes demonstrated good stability over 120 h's evaluation. This study offers a promising post-synthetic approach and a class of membrane materials for efficient MeOH/organic separation.
期刊介绍：
The Journal of Membrane Science is a publication that focuses on membrane systems and is aimed at academic and industrial chemists, chemical engineers, materials scientists, and membranologists. It publishes original research and reviews on various aspects of membrane transport, membrane formation/structure, fouling, module/process design, and processes/applications. The journal primarily focuses on the structure, function, and performance of non-biological membranes but also includes papers that relate to biological membranes. The Journal of Membrane Science publishes Full Text Papers, State-of-the-Art Reviews, Letters to the Editor, and Perspectives.
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