Contra-diffusion synthesis of ZIF-8 layer on polyvinylidene fluoride ultrafiltration membranes for improved water purification

Atefeh Karimi; Vahid Vatanpour; Alireza Khataee; Mahdie Safarpour

doi:10.1016/j.jiec.2019.01.010

Contra-diffusion synthesis of ZIF-8 layer on polyvinylidene fluoride ultrafiltration membranes for improved water purification

Atefeh Karimi, Vahid Vatanpour, Alireza Khataee^*, Mahdie Safarpour

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

89 Citations (Scopus)

Abstract

Contra-diffusion synthesis method was used to create a uniform layer of zeolitic imidazolate framework-8 (ZIF-8) on the porous polyvinylidene fluoride (PVDF) ultrafiltration membranes. SEM, FTIR, EDX, AFM and water contact angle analyses were used to characterize the prepared membranes. The modified membrane with 5 h contra-diffusion synthesis time showed maximum pure water flux of 134 L/m ² h nearly twice of that of the bare PVDF membrane (65.8 L/m ² h). The water purification performance of the prepared membranes was evaluated using dye removal efficiency and the ZIF-8 modified membranes exhibited better performance for dye removal due of the negatively charged surface.

Original language	English
Pages (from-to)	95-105
Number of pages	11
Journal	Journal of Industrial and Engineering Chemistry
Volume	73
DOIs	https://doi.org/10.1016/j.jiec.2019.01.010
Publication status	Published - 25 May 2019
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2019 The Korean Society of Industrial and Engineering Chemistry

Keywords

Antifouling
Contra-diffusion
Dye rejection
Ultrafiltration
Zeolitic imidazolate framework-8

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10.1016/j.jiec.2019.01.010

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title = "Contra-diffusion synthesis of ZIF-8 layer on polyvinylidene fluoride ultrafiltration membranes for improved water purification",

abstract = " Contra-diffusion synthesis method was used to create a uniform layer of zeolitic imidazolate framework-8 (ZIF-8) on the porous polyvinylidene fluoride (PVDF) ultrafiltration membranes. SEM, FTIR, EDX, AFM and water contact angle analyses were used to characterize the prepared membranes. The modified membrane with 5 h contra-diffusion synthesis time showed maximum pure water flux of 134 L/m 2 h nearly twice of that of the bare PVDF membrane (65.8 L/m 2 h). The water purification performance of the prepared membranes was evaluated using dye removal efficiency and the ZIF-8 modified membranes exhibited better performance for dye removal due of the negatively charged surface.",

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doi = "10.1016/j.jiec.2019.01.010",

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T1 - Contra-diffusion synthesis of ZIF-8 layer on polyvinylidene fluoride ultrafiltration membranes for improved water purification

AU - Karimi, Atefeh

AU - Vatanpour, Vahid

AU - Khataee, Alireza

AU - Safarpour, Mahdie

PY - 2019/5/25

Y1 - 2019/5/25

N2 - Contra-diffusion synthesis method was used to create a uniform layer of zeolitic imidazolate framework-8 (ZIF-8) on the porous polyvinylidene fluoride (PVDF) ultrafiltration membranes. SEM, FTIR, EDX, AFM and water contact angle analyses were used to characterize the prepared membranes. The modified membrane with 5 h contra-diffusion synthesis time showed maximum pure water flux of 134 L/m 2 h nearly twice of that of the bare PVDF membrane (65.8 L/m 2 h). The water purification performance of the prepared membranes was evaluated using dye removal efficiency and the ZIF-8 modified membranes exhibited better performance for dye removal due of the negatively charged surface.

AB - Contra-diffusion synthesis method was used to create a uniform layer of zeolitic imidazolate framework-8 (ZIF-8) on the porous polyvinylidene fluoride (PVDF) ultrafiltration membranes. SEM, FTIR, EDX, AFM and water contact angle analyses were used to characterize the prepared membranes. The modified membrane with 5 h contra-diffusion synthesis time showed maximum pure water flux of 134 L/m 2 h nearly twice of that of the bare PVDF membrane (65.8 L/m 2 h). The water purification performance of the prepared membranes was evaluated using dye removal efficiency and the ZIF-8 modified membranes exhibited better performance for dye removal due of the negatively charged surface.

KW - Antifouling

KW - Contra-diffusion

KW - Dye rejection

KW - Ultrafiltration

KW - Zeolitic imidazolate framework-8

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VL - 73

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JO - Journal of Industrial and Engineering Chemistry

JF - Journal of Industrial and Engineering Chemistry

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Contra-diffusion synthesis of ZIF-8 layer on polyvinylidene fluoride ultrafiltration membranes for improved water purification

Abstract

Bibliographical note

Keywords

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