染料脱盐用超薄二硫化钼膜的规模化合成

IF 4.9 Q1 ENGINEERING, CHEMICAL
Rodrigo Schneider , Ameya Manoj Tandel , Erda Deng , Daniel S. Correa , Haiqing Lin
{"title":"染料脱盐用超薄二硫化钼膜的规模化合成","authors":"Rodrigo Schneider ,&nbsp;Ameya Manoj Tandel ,&nbsp;Erda Deng ,&nbsp;Daniel S. Correa ,&nbsp;Haiqing Lin","doi":"10.1016/j.memlet.2023.100058","DOIUrl":null,"url":null,"abstract":"<div><p>Molybdenum disulfide (MoS<sub>2</sub>) has been fabricated into thin-film composite (TFC) membranes for dye desalination due to its excellent underwater stability and tunable interlay spacing. However, it remains challenging to synthesize thin layers of MoS<sub>2</sub> with high water permeance and high dye rejection due to the difficulty in fabricating large crystalline sheets or exfoliation. Herein, we report a scalable method coupling bottom-up hydrothermal synthesis and top-down ultrasonic exfoliation to obtain well-dispersed MoS<sub>2</sub> nanosheets and a vacuum filtration method to prepare ultrathin membranes (thickness: 30 – 60 nm) for dye desalination. The MoS<sub>2</sub> nanosheets and membranes are thoroughly characterized for their chemistries and nanostructures. The membrane with 60-nm MoS<sub>2</sub> exhibits water permeance of 32 LMH/bar, Na<sub>2</sub>SO<sub>4</sub> rejection of 2.3%, and Direct Red-80 rejection of 99.0%. The MoS<sub>2</sub> membranes exhibit dye desalination performance superior to state-of-the-art commercial polyamide membranes and many leading membranes based on two-dimensional materials.</p></div>","PeriodicalId":100805,"journal":{"name":"Journal of Membrane Science Letters","volume":null,"pages":null},"PeriodicalIF":4.9000,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Scalable synthesis of ultrathin MoS2 membranes for dye desalination\",\"authors\":\"Rodrigo Schneider ,&nbsp;Ameya Manoj Tandel ,&nbsp;Erda Deng ,&nbsp;Daniel S. Correa ,&nbsp;Haiqing Lin\",\"doi\":\"10.1016/j.memlet.2023.100058\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Molybdenum disulfide (MoS<sub>2</sub>) has been fabricated into thin-film composite (TFC) membranes for dye desalination due to its excellent underwater stability and tunable interlay spacing. However, it remains challenging to synthesize thin layers of MoS<sub>2</sub> with high water permeance and high dye rejection due to the difficulty in fabricating large crystalline sheets or exfoliation. Herein, we report a scalable method coupling bottom-up hydrothermal synthesis and top-down ultrasonic exfoliation to obtain well-dispersed MoS<sub>2</sub> nanosheets and a vacuum filtration method to prepare ultrathin membranes (thickness: 30 – 60 nm) for dye desalination. The MoS<sub>2</sub> nanosheets and membranes are thoroughly characterized for their chemistries and nanostructures. The membrane with 60-nm MoS<sub>2</sub> exhibits water permeance of 32 LMH/bar, Na<sub>2</sub>SO<sub>4</sub> rejection of 2.3%, and Direct Red-80 rejection of 99.0%. The MoS<sub>2</sub> membranes exhibit dye desalination performance superior to state-of-the-art commercial polyamide membranes and many leading membranes based on two-dimensional materials.</p></div>\",\"PeriodicalId\":100805,\"journal\":{\"name\":\"Journal of Membrane Science Letters\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.9000,\"publicationDate\":\"2023-08-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Membrane Science Letters\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2772421223000223\",\"RegionNum\":0,\"RegionCategory\":null,\"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 Letters","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2772421223000223","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0

摘要

二硫化钼(MoS2)具有良好的水下稳定性和可调的层间距,已被制备成用于染料脱盐的薄膜复合材料(TFC)膜。然而,由于难以制造大的结晶片或剥离,合成具有高透水性和高染料截留率的MoS2薄层仍然具有挑战性。在此,我们报道了一种可扩展的方法,将自下而上的水热合成和自上而下的超声剥离相结合,以获得分散良好的MoS2纳米片,以及一种真空过滤方法,以制备用于染料脱盐的超薄膜(厚度:30–60 nm)。对MoS2纳米片和膜的化学性质和纳米结构进行了全面表征。具有60nm MoS2的膜表现出32LMH/bar的透水性、2.3%的Na2SO4截留率和99.0%的Direct Red-80截留率。MoS2膜表现出优于最先进的商业聚酰胺膜和许多基于二维材料的领先膜的染料脱盐性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Scalable synthesis of ultrathin MoS2 membranes for dye desalination

Molybdenum disulfide (MoS2) has been fabricated into thin-film composite (TFC) membranes for dye desalination due to its excellent underwater stability and tunable interlay spacing. However, it remains challenging to synthesize thin layers of MoS2 with high water permeance and high dye rejection due to the difficulty in fabricating large crystalline sheets or exfoliation. Herein, we report a scalable method coupling bottom-up hydrothermal synthesis and top-down ultrasonic exfoliation to obtain well-dispersed MoS2 nanosheets and a vacuum filtration method to prepare ultrathin membranes (thickness: 30 – 60 nm) for dye desalination. The MoS2 nanosheets and membranes are thoroughly characterized for their chemistries and nanostructures. The membrane with 60-nm MoS2 exhibits water permeance of 32 LMH/bar, Na2SO4 rejection of 2.3%, and Direct Red-80 rejection of 99.0%. The MoS2 membranes exhibit dye desalination performance superior to state-of-the-art commercial polyamide membranes and many leading membranes based on two-dimensional materials.

求助全文
通过发布文献求助,成功后即可免费获取论文全文。 去求助
来源期刊
CiteScore
4.00
自引率
0.00%
发文量
0
×
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