Enhanced permeability and antifouling performance of cellulose acetate ultrafiltration membrane assisted by L-DOPA functionalized halloysite nanotubes

Keguang Mu; Dalun Zhang; Ziqiang Shao; Dujian Qin; Yalong Wang; Shuo Wang

doi:10.1016/j.carbpol.2017.06.089

Enhanced permeability and antifouling performance of cellulose acetate ultrafiltration membrane assisted by L-DOPA functionalized halloysite nanotubes

Keguang Mu, Dalun Zhang^*, Ziqiang Shao, Dujian Qin, Yalong Wang, Shuo Wang

^*Corresponding author for this work

School of Material Science and Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Review article › peer-review

38 Citations (Scopus)

Abstract

L-Dopa functionalized halloysite nanotubes (HNTs) were prepared by the self-polymerization of L-dopa in the weak alkaline condition. Then different contents of L-dopa coated HNTs (LPDHNTs) were blended into cellulose acetate to prepare enhanced performance ultrafiltration membranes via the phase inversion method. The HNTs and LPDHNTs were characterized by FTIR, XPS, and TEM anysis. And the membranes morphologies, separation performance, antifouling performance, mechanical properties and hydrophilicity were also investigated. It was found that the composite membranes exhibited excellent antifouling performance. The pure water flux of 3.0 wt% LPDHNTs/CA membrane increased from 11.4 L m⁻² h⁻¹ to 92.9 L m⁻² h⁻¹, while the EA rejection ratio of the membrane was about 91.2%. In addition, the mechanical properties of the resultant membranes were strengthened compared with the CA ultrafiltration membrane.

Original language	English
Pages (from-to)	688-696
Number of pages	9
Journal	Carbohydrate Polymers
Volume	174
DOIs	https://doi.org/10.1016/j.carbpol.2017.06.089
Publication status	Published - 15 Oct 2017

Keywords

Antifouling
Composite membranes
Enhanced properties
Halloysite nanotubes
L-Dopa

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10.1016/j.carbpol.2017.06.089

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title = "Enhanced permeability and antifouling performance of cellulose acetate ultrafiltration membrane assisted by L-DOPA functionalized halloysite nanotubes",

abstract = "L-Dopa functionalized halloysite nanotubes (HNTs) were prepared by the self-polymerization of L-dopa in the weak alkaline condition. Then different contents of L-dopa coated HNTs (LPDHNTs) were blended into cellulose acetate to prepare enhanced performance ultrafiltration membranes via the phase inversion method. The HNTs and LPDHNTs were characterized by FTIR, XPS, and TEM anysis. And the membranes morphologies, separation performance, antifouling performance, mechanical properties and hydrophilicity were also investigated. It was found that the composite membranes exhibited excellent antifouling performance. The pure water flux of 3.0 wt% LPDHNTs/CA membrane increased from 11.4 L m−2 h−1 to 92.9 L m−2 h−1, while the EA rejection ratio of the membrane was about 91.2%. In addition, the mechanical properties of the resultant membranes were strengthened compared with the CA ultrafiltration membrane.",

keywords = "Antifouling, Composite membranes, Enhanced properties, Halloysite nanotubes, L-Dopa",

author = "Keguang Mu and Dalun Zhang and Ziqiang Shao and Dujian Qin and Yalong Wang and Shuo Wang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2017",

month = oct,

day = "15",

doi = "10.1016/j.carbpol.2017.06.089",

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volume = "174",

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journal = "Carbohydrate Polymers",

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T1 - Enhanced permeability and antifouling performance of cellulose acetate ultrafiltration membrane assisted by L-DOPA functionalized halloysite nanotubes

AU - Mu, Keguang

AU - Zhang, Dalun

AU - Shao, Ziqiang

AU - Qin, Dujian

AU - Wang, Yalong

AU - Wang, Shuo

PY - 2017/10/15

Y1 - 2017/10/15

N2 - L-Dopa functionalized halloysite nanotubes (HNTs) were prepared by the self-polymerization of L-dopa in the weak alkaline condition. Then different contents of L-dopa coated HNTs (LPDHNTs) were blended into cellulose acetate to prepare enhanced performance ultrafiltration membranes via the phase inversion method. The HNTs and LPDHNTs were characterized by FTIR, XPS, and TEM anysis. And the membranes morphologies, separation performance, antifouling performance, mechanical properties and hydrophilicity were also investigated. It was found that the composite membranes exhibited excellent antifouling performance. The pure water flux of 3.0 wt% LPDHNTs/CA membrane increased from 11.4 L m−2 h−1 to 92.9 L m−2 h−1, while the EA rejection ratio of the membrane was about 91.2%. In addition, the mechanical properties of the resultant membranes were strengthened compared with the CA ultrafiltration membrane.

AB - L-Dopa functionalized halloysite nanotubes (HNTs) were prepared by the self-polymerization of L-dopa in the weak alkaline condition. Then different contents of L-dopa coated HNTs (LPDHNTs) were blended into cellulose acetate to prepare enhanced performance ultrafiltration membranes via the phase inversion method. The HNTs and LPDHNTs were characterized by FTIR, XPS, and TEM anysis. And the membranes morphologies, separation performance, antifouling performance, mechanical properties and hydrophilicity were also investigated. It was found that the composite membranes exhibited excellent antifouling performance. The pure water flux of 3.0 wt% LPDHNTs/CA membrane increased from 11.4 L m−2 h−1 to 92.9 L m−2 h−1, while the EA rejection ratio of the membrane was about 91.2%. In addition, the mechanical properties of the resultant membranes were strengthened compared with the CA ultrafiltration membrane.

KW - Antifouling

KW - Composite membranes

KW - Enhanced properties

KW - Halloysite nanotubes

KW - L-Dopa

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U2 - 10.1016/j.carbpol.2017.06.089

DO - 10.1016/j.carbpol.2017.06.089

M3 - Review article

C2 - 28821120

AN - SCOPUS:85022066131

SN - 0144-8617

VL - 174

SP - 688

EP - 696

JO - Carbohydrate Polymers

JF - Carbohydrate Polymers

ER -

Enhanced permeability and antifouling performance of cellulose acetate ultrafiltration membrane assisted by L-DOPA functionalized halloysite nanotubes

Abstract

Keywords

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