High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal

Jieun Lee; Yun Ye; Antony J. Ward; Cuifeng Zhou; Vicki Chen; Andrew I. Minett; Sanghyup Lee; Zongwen Liu; So Ryong Chae; Jeffrey Shi

doi:10.1016/j.seppur.2016.02.032

High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal

Jieun Lee, Yun Ye, Antony J. Ward, Cuifeng Zhou, Vicki Chen, Andrew I. Minett, Sanghyup Lee, Zongwen Liu, So Ryong Chae, Jeffrey Shi

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

77 Citations (Scopus)

Abstract

Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m²/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNTs/PANI complex. MWCNTs/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h.

Original language	English
Pages (from-to)	109-119
Number of pages	11
Journal	Separation and Purification Technology
Volume	163
DOIs	https://doi.org/10.1016/j.seppur.2016.02.032
Publication status	Published - 2016 May 11

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V. All rights reserved.

Keywords

Carbon nanotube membrane
In-situ polymerisation
MWCNTs/PANI complex
NOM removal
UF membrane

ASJC Scopus subject areas

Analytical Chemistry
Filtration and Separation

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10.1016/j.seppur.2016.02.032

Cite this

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title = "High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal",

abstract = "Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m2/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNTs/PANI complex. MWCNTs/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h.",

keywords = "Carbon nanotube membrane, In-situ polymerisation, MWCNTs/PANI complex, NOM removal, UF membrane",

author = "Jieun Lee and Yun Ye and Ward, {Antony J.} and Cuifeng Zhou and Vicki Chen and Minett, {Andrew I.} and Sanghyup Lee and Zongwen Liu and Chae, {So Ryong} and Jeffrey Shi",

year = "2016",

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journal = "Separation and Purification Technology",

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T1 - High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal

AU - Lee, Jieun

AU - Ye, Yun

AU - Ward, Antony J.

AU - Zhou, Cuifeng

AU - Chen, Vicki

AU - Minett, Andrew I.

AU - Lee, Sanghyup

AU - Liu, Zongwen

AU - Chae, So Ryong

AU - Shi, Jeffrey

PY - 2016/5/11

Y1 - 2016/5/11

N2 - Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m2/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNTs/PANI complex. MWCNTs/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h.

AB - Multi-wall carbon nanotubes (MWCNTs)/polyaniline (PANI)/polyethersulfone (PES) membranes were fabricated by incorporation of in-situ polymerised MWCNTs/PANI complex for effective removal of natural organic matter (NOM) in water. The membrane showed high permeability (1400 L/m2/h (LMH)/bar), which is 30 times greater than the PES membrane. High NOM rejection rate (80%) was also observed for the composite membrane, which is 4 times higher than PES membrane. This superior performance is attributed to the synergetic effect of increased porosity, narrow pore size distribution and hydrophilicity, and positively charged of the membranes by the inclusion of MWCNTs/PANI complex. MWCNTs/PANI electron transfer complex successfully engineered chemical/physical properties of the membrane in order to have high NOM adsorption capacity and fast water flux. It is suggested that enhanced adsorption capacity is attributed to the electrostatic interaction between NOM and the membrane surface. Key factors contributing to the fast water flux and removal mechanism were covered in depth by characterization of physical and chemical properties of the membrane. The membrane demonstrated 100% water flux recovery and 65% total fouling ratio after cleaning with 0.1 M HCl/0.1 M NaOH solution for 1 h.

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KW - In-situ polymerisation

KW - MWCNTs/PANI complex

KW - NOM removal

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JO - Separation and Purification Technology

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ER -

High flux and high selectivity carbon nanotube composite membranes for natural organic matter removal

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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