Effect of the Synthesis and Post-Treatment of Twin-Crystal ZSM-5 Zeolites on Their VOCs Adsorption Performance

IF 3.8 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Xiangfei Ji, Qirui Zhou, Xiaoyun Zhang
{"title":"Effect of the Synthesis and Post-Treatment of Twin-Crystal ZSM-5 Zeolites on Their VOCs Adsorption Performance","authors":"Xiangfei Ji, Qirui Zhou, Xiaoyun Zhang","doi":"10.1021/acs.iecr.4c02790","DOIUrl":null,"url":null,"abstract":"The synthesis and post-treatment of twin-crystal ZSM-5 zeolites with varying high silica/alumina ratios (SARs) were studied and characterized by XRD, SEM, N<sub>2</sub>-TPD, and TG-DTG. The effects of SARs and post-treatments on the adsorption–desorption behavior of volatile organic compounds (VOCs) over ZSM-5 were investigated. Ethyl acetate, toluene, and <i>p</i>-xylene were used as VOC probe molecules. The results showed that both acid treatment and acid–base composite treatment significantly influenced the morphology and pore structure of ZSM-5 zeolites. The saturated adsorption capacity of ZSM-5 zeolites was affected by the SARs, the kinetic diameters and polarity of VOC molecules, and the polarity and pore structure of the zeolites, in which the kinetic diameters of VOC molecules and pore structure were the key determinants. The post-treatment significantly increased the specific surface area and pore volume of ZSM-5, resulting in excellent adsorption performance for the different adsorbates investigated. In the present study, the as-prepared Na-HZSM-5-750 showed a higher saturated adsorption capacity for toluene (120.61 mg/g) and ethyl acetate (160.71 mg/g), whereas H-ZSM-5-1380 exhibited a higher adsorption capacity for <i>p</i>-xylene (149.72 mg/g).","PeriodicalId":39,"journal":{"name":"Industrial & Engineering Chemistry Research","volume":"1 1","pages":""},"PeriodicalIF":3.8000,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Industrial & Engineering Chemistry Research","FirstCategoryId":"5","ListUrlMain":"https://doi.org/10.1021/acs.iecr.4c02790","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

Abstract

The synthesis and post-treatment of twin-crystal ZSM-5 zeolites with varying high silica/alumina ratios (SARs) were studied and characterized by XRD, SEM, N2-TPD, and TG-DTG. The effects of SARs and post-treatments on the adsorption–desorption behavior of volatile organic compounds (VOCs) over ZSM-5 were investigated. Ethyl acetate, toluene, and p-xylene were used as VOC probe molecules. The results showed that both acid treatment and acid–base composite treatment significantly influenced the morphology and pore structure of ZSM-5 zeolites. The saturated adsorption capacity of ZSM-5 zeolites was affected by the SARs, the kinetic diameters and polarity of VOC molecules, and the polarity and pore structure of the zeolites, in which the kinetic diameters of VOC molecules and pore structure were the key determinants. The post-treatment significantly increased the specific surface area and pore volume of ZSM-5, resulting in excellent adsorption performance for the different adsorbates investigated. In the present study, the as-prepared Na-HZSM-5-750 showed a higher saturated adsorption capacity for toluene (120.61 mg/g) and ethyl acetate (160.71 mg/g), whereas H-ZSM-5-1380 exhibited a higher adsorption capacity for p-xylene (149.72 mg/g).

Abstract Image

求助全文
约1分钟内获得全文 求助全文
来源期刊
Industrial & Engineering Chemistry Research
Industrial & Engineering Chemistry Research 工程技术-工程:化工
CiteScore
7.40
自引率
7.10%
发文量
1467
审稿时长
2.8 months
期刊介绍: ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
copy
已复制链接
快去分享给好友吧!
我知道了
右上角分享
点击右上角分享
0
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信