Metal-organic framework/zeolite nanocrystal/polyvinylidene fluoride composite ultrafiltration membranes with flux/antifouling advantages

被引：0

作者：

Dehghankar, Mona ^{[1
,2
]}

Mohammadi, Toraj ^{[1
,2
]}

Moghadam, Maryam Tavakol ^{[3
]}

Tofighy, Maryam Ahmadzadeh ^{[1
,2
]}

机构：

[1] Research and Technology Center of Membrane Processes, Department of Chemical, Petroleum and Gas Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran

[2] Center of Excellence for Membrane Science and Technology, Iran University of Science and Technology (IUST), Narmak, Tehran, Iran

[3] Polymer, Chemical and Petrochemical Science and Technology Division, Research Institute of petroleum Industry, Tehran, Iran

来源：

Materials Chemistry and Physics | 2021年 / 260卷

基金：

美国国家科学基金会;

关键词：

Composite membranes - Hydrophilicity - Fluorine compounds - Zeolites - Fabrication - Mammals - Metal-Organic Frameworks - Chromium compounds - Phase separation;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

In this study, hydrophilic zirconium 1,4-dicarboxybenzene (UiO-66) and chromium (III) terephthalate (MIL-101) metal-organic frameworks (MOFs) and faujasite (FAU) zeolite nanocrystals were synthesized successfully and incorporated into polyvinylidene fluoride (PVDF) matrix as nanofillers to fabricate mixed matrix membranes (MMMs) via non-solvent induced phase separation (NIPS) process. The effects of casting solution temperature and casting speed as two important factors in membrane fabrication via phase inversion method on performance and structure of the neat PVDF membrane were investigated. Then, various contents of the synthesized nanofillers were loaded into the PVDF matrix and the effects of the synthesized nanofillers on hydrophilicity, pure water flux (PWF), morphology and antifouling properties of the fabricated MMMs were explored. Antifouling studies were also performed using Bovine serum albumin (BSA). The obtained results demonstrated that incorporation of the synthesized nanofillers into the PVDF membrane has positive effect on performance and structure of the fabricated MMMs and the MMM containing 0.1 wt% MIL-101 showed the best performance with water flux of 360 LMH, BSA rejection of 100%, irreversible fouling of 22.2% and flux recovery ratio of 77.7%. This work highlighted the potential application of the MOFs as effective nanofillers for MMM fabrication. © 2020 Elsevier B.V.

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