Please use this identifier to cite or link to this item: https://doi.org/10.1021/acs.jpclett.9b01780
Title: MoS2 Membranes for Organic Solvent Nanofiltration: Stability and Structural Control
Authors: Guo, Bing-Yi 
Jiang, Shu-Dong 
Tang, Ming-Jian
Li, Kerui 
Sun, Shipeng 
Chen, Po-Yen 
Zhang, Sui 
Keywords: Science & Technology
Physical Sciences
Technology
Chemistry, Physical
Nanoscience & Nanotechnology
Materials Science, Multidisciplinary
Physics, Atomic, Molecular & Chemical
Chemistry
Science & Technology - Other Topics
Materials Science
Physics
GRAPHENE OXIDE MEMBRANES
MOLYBDENUM-DISULFIDE
RESISTANT NANOFILTRATION
COMPOSITE MEMBRANES
LAMELLAR MEMBRANE
SEPARATION
NANOSHEETS
ULTRATHIN
FABRICATION
PATHWAYS
Issue Date: 15-Aug-2019
Publisher: AMER CHEMICAL SOC
Citation: Guo, Bing-Yi, Jiang, Shu-Dong, Tang, Ming-Jian, Li, Kerui, Sun, Shipeng, Chen, Po-Yen, Zhang, Sui (2019-08-15). MoS2 Membranes for Organic Solvent Nanofiltration: Stability and Structural Control. JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10 (16) : 4609-4617. ScholarBank@NUS Repository. https://doi.org/10.1021/acs.jpclett.9b01780
Abstract: © 2019 American Chemical Society. This paper reveals the chemical, structural, and separation stability of stacked molybdenum disulfide (MoS2) membranes and establishes a low-cost and facile approach to developing stable, selective membranes for efficient molecular separation in an organic solvent. MoS2 nanoflakes that were dominant by monolayer MoS2 sheets as prepared via direct chemical exfoliation (chem-MoS2) were found to be chemically and structurally instable, with a sharp decrease in the level of solute rejection within a few days. Few-layer MoS2 nanoflakes were then fabricated using a hydrothermal method (hydro-MoS2). A "supportive" drying process involving glycerol pretreatment and drying in an oven was established to allow realignment of nanoflakes and adjustment of interflake spacing. We have shown that the hydro-MoS2 membranes provide a mean interflake free spacing of ∼1 nm, which is ideal for the separation of a model solute (Rose Bengal, size of ∼1.45 nm) from the solvent isopropanol (size of 0.58 nm) with good long-term stability over a 7 day test.
Source Title: JOURNAL OF PHYSICAL CHEMISTRY LETTERS
URI: https://scholarbank.nus.edu.sg/handle/10635/172224
ISSN: 1948-7185
DOI: 10.1021/acs.jpclett.9b01780
Appears in Collections:Staff Publications
Elements
Students Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
MoS2 for OSN_Manuscript_ZS_20190725.pdfAccepted version1.79 MBAdobe PDF

OPEN

Post-printView/Download

Google ScholarTM

Check

Altmetric


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.