{"title":"无溶剂合成微米级硅胶-1 沸石：优化、表征和机理","authors":"","doi":"10.1016/j.jssc.2024.124979","DOIUrl":null,"url":null,"abstract":"<div><p>The solvent-free method fabrication of zeolites represents an eco-friendly approach, which a highly attractive field of scientific research. A novel method for synthesis of micron-sized silicalite-1 zeolite under fluoride-free and solvent-free conditions has been developed. Characterization of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunner-Emmett-Teller (BET) surface area were used to analyze the properties and structure of the silicalite-1 zeolite. The effects of mineralizers, organic structuring direct agents, catalyst, and crystallization time on the synthesized silicalite-1 zeolite are investigated. Silicalite-1 zeolite has microporous and mesoporous structures with a BET surface area of 350.4 m<sup>2</sup>/g. The synthesis mechanism of micron-sized silicalite-1 zeolite has been proposed, revealing that the intermediate sodium silicate dry gel is crucial for the formation of zeolite.</p></div>","PeriodicalId":378,"journal":{"name":"Journal of Solid State Chemistry","volume":null,"pages":null},"PeriodicalIF":3.2000,"publicationDate":"2024-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Solvent-free synthesis of micron-sized silicalite-1 zeolite: Optimization, characterization and mechanism\",\"authors\":\"\",\"doi\":\"10.1016/j.jssc.2024.124979\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The solvent-free method fabrication of zeolites represents an eco-friendly approach, which a highly attractive field of scientific research. A novel method for synthesis of micron-sized silicalite-1 zeolite under fluoride-free and solvent-free conditions has been developed. Characterization of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunner-Emmett-Teller (BET) surface area were used to analyze the properties and structure of the silicalite-1 zeolite. The effects of mineralizers, organic structuring direct agents, catalyst, and crystallization time on the synthesized silicalite-1 zeolite are investigated. Silicalite-1 zeolite has microporous and mesoporous structures with a BET surface area of 350.4 m<sup>2</sup>/g. The synthesis mechanism of micron-sized silicalite-1 zeolite has been proposed, revealing that the intermediate sodium silicate dry gel is crucial for the formation of zeolite.</p></div>\",\"PeriodicalId\":378,\"journal\":{\"name\":\"Journal of Solid State Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2024-08-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Solid State Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S002245962400433X\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Solid State Chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S002245962400433X","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","Score":null,"Total":0}
Solvent-free synthesis of micron-sized silicalite-1 zeolite: Optimization, characterization and mechanism
The solvent-free method fabrication of zeolites represents an eco-friendly approach, which a highly attractive field of scientific research. A novel method for synthesis of micron-sized silicalite-1 zeolite under fluoride-free and solvent-free conditions has been developed. Characterization of powder X-ray diffraction (XRD), scanning electron microscopy (SEM), Brunner-Emmett-Teller (BET) surface area were used to analyze the properties and structure of the silicalite-1 zeolite. The effects of mineralizers, organic structuring direct agents, catalyst, and crystallization time on the synthesized silicalite-1 zeolite are investigated. Silicalite-1 zeolite has microporous and mesoporous structures with a BET surface area of 350.4 m2/g. The synthesis mechanism of micron-sized silicalite-1 zeolite has been proposed, revealing that the intermediate sodium silicate dry gel is crucial for the formation of zeolite.
期刊介绍：
Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.
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