{"title":"Near-Perfect Purification of 2,6-Xylenol from Ternary Cresol Mixtures Using Cucurbit[7]uril.","authors":"Xin Lu, Tao Hou, Zhu Tao, Qing Li","doi":"10.1021/acsami.5c00654","DOIUrl":null,"url":null,"abstract":"<p><p>The separation of <i>m</i>-cresol (<i>m</i>-cre), <i>p</i>-cresol (<i>p</i>-cre), and 2,6-xylenol (2,6-xyl) poses a significant challenge in industrial processes. This study focuses on selectively separating <i>m</i>-cre and <i>p</i>-cre from a ternary mixture using a cucurbit[7]uril (Q[7]) aqueous solution to achieve the near-perfect purification of 2,6-xyl. Experimental results show that <i>m</i>-cre and <i>p</i>-cre can be selectively encapsulated by the Q[7] host, while 2,6-xyl, due to its larger volume, cannot be encapsulated. The synergistic effect of steric hindrance and complex stability contributes to effective host-guest selective encapsulation separation. The Q[7] aqueous solution can be easily recovered and reused without a significant decrease in separation performance. In the simulated industrial separation experiment, the purity of the purified cresol reached 100%. This research underscores the importance of macrocyclic host molecules in enhancing industrial separations and reducing energy costs through precise guest molecule recognition.</p>","PeriodicalId":5,"journal":{"name":"ACS Applied Materials & Interfaces","volume":" ","pages":""},"PeriodicalIF":8.3000,"publicationDate":"2025-02-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"ACS Applied Materials & Interfaces","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1021/acsami.5c00654","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
The separation of m-cresol (m-cre), p-cresol (p-cre), and 2,6-xylenol (2,6-xyl) poses a significant challenge in industrial processes. This study focuses on selectively separating m-cre and p-cre from a ternary mixture using a cucurbit[7]uril (Q[7]) aqueous solution to achieve the near-perfect purification of 2,6-xyl. Experimental results show that m-cre and p-cre can be selectively encapsulated by the Q[7] host, while 2,6-xyl, due to its larger volume, cannot be encapsulated. The synergistic effect of steric hindrance and complex stability contributes to effective host-guest selective encapsulation separation. The Q[7] aqueous solution can be easily recovered and reused without a significant decrease in separation performance. In the simulated industrial separation experiment, the purity of the purified cresol reached 100%. This research underscores the importance of macrocyclic host molecules in enhancing industrial separations and reducing energy costs through precise guest molecule recognition.
期刊介绍：
ACS Applied Materials & Interfaces is a leading interdisciplinary journal that brings together chemists, engineers, physicists, and biologists to explore the development and utilization of newly-discovered materials and interfacial processes for specific applications. Our journal has experienced remarkable growth since its establishment in 2009, both in terms of the number of articles published and the impact of the research showcased. We are proud to foster a truly global community, with the majority of published articles originating from outside the United States, reflecting the rapid growth of applied research worldwide.
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