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Title: Rapid co-deposition of graphene oxide incorporated metal-phenolic network/piperazine followed by crosslinking for high flux nanofiltration membranes
Authors: Yang, Yang
Li, Ye
Li, Qing
Wang, Yining
Tan, Choon Hong
Wang, Rong
Keywords: Engineering::Environmental engineering
Issue Date: 2019
Source: Yang, Y., Li, Y., Li, Q., Wang, Y., Tan, C. H. & Wang, R. (2019). Rapid co-deposition of graphene oxide incorporated metal-phenolic network/piperazine followed by crosslinking for high flux nanofiltration membranes. Journal of Membrane Science, 588, 117203-.
Project: EWI 1501-IRIS-04 
Journal: Journal of Membrane Science 
Abstract: In this study, we presented a novel nanofiltration membrane fabrication strategy through rapid co-deposition of a versatile platform – metal phenolic networks (MPNs) and piperazine (PIP) on a porous substrate followed by trimesoyl chloride (TMC) crosslinking. Inspired by the catechol chemistry, tannic acid (TA) was functionalized to tether PIP monomers, and participated in the co-deposition via coordination bonds with Fe3+ ions on a substrate to form Fe3+/TA-PIP complex. A series of analyses (SEM, XPS, FT-IR, water contact angle and zeta potential) confirmed the successful synthesis Fe3+/TA-PIP deposition and polyamide (PA) layer. The resultant membrane exhibited water permeability of 13.73 LMH/bar and 89.52 % for MgSO4 rejection. The fabrication was further improved by embedding modified graphene oxide (GO) nanosheets into the Fe3+/TA-PIP complex. The optimized nanocomposite membrane achieved a water permeability at 21.66 LMH/bar, along with a well maintained MgSO4 rejection at 91.25 % and NaCl/MgSO4 selectivity (α) at 10.02 under 2 bar operation pressure. The rapid co-deposition mediated by nanomaterials incorporation provides an effective approach to design high performance thin film composite (TFC) membrane.
ISSN: 0376-7388
DOI: 10.1016/j.memsci.2019.117203
Rights: © 2019 Elsevier B.V. All rights reserved. This paper was published in Journal of Membrane Science and is made available with permission of Elsevier B.V.
Fulltext Permission: embargo_20211022
Fulltext Availability: With Fulltext
Appears in Collections:CEE Journal Articles
IGS Journal Articles
NEWRI Journal Articles
SPMS Journal Articles

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