A novel cockscomb-like substrate-supported TFN-FO membrane with a dispersed bovine serum albumin (BSA)/gold nanoparticles (GNPs) interface layer exhibiting high performance

Fuqing Ma; Chaojie Cai; Xinzhen Zhao; Hilal Ahmad; Changkun Liu

doi:10.1016/j.desal.2020.114732

A novel cockscomb-like substrate-supported TFN-FO membrane with a dispersed bovine serum albumin (BSA)/gold nanoparticles (GNPs) interface layer exhibiting high performance

Fuqing Ma, Chaojie Cai, Xinzhen Zhao, Hilal Ahmad, Changkun Liu^*

^*Corresponding author for this work

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

6 Scopus citations

Abstract

A novel thin-film nanocomposite (TFN) forward osmosis (FO) membrane was fabricated by loading bovine serum albumin (BSA)/gold nanoparticles (GNPs) on the surface of a cockscomb-like nylon supporting membrane. The influence of the embedded BSA/GNPs on surface morphology, surface roughness, surface charge, separation, and FO performance of the TFN-FO membrane was investigated. The water flux of the BSA/GNPs-modified FO membrane could be increased to 55.2 ± 5.4 LMH, and the J_s/J_w value was substantially decreased to 0.034 g/L, indicating a high selectivity of the modified membrane. BSA/GNPs located between the top of the nylon supporting membrane and the bottom of the polyamide (PA) skin layer provided passage for water transport and increased the roughness of the PA layer, thus enhancing the effective area on which the osmotic pressure could act. In addition, BSA/GNPs located at the bottom surface of the nylon supporting membrane provided a nearly electroneutral surface in the solution and alleviated dilutive concentration polarization. In summary, choosing a nylon membrane with a special cockscomb-like surface structure as the supporting layer to load BSA/GNPs nanoparticles proved to be a creative and effective nano-modification method for fabricating high-performance TFN-FO membranes.

Original language	English
Article number	114732
Journal	Desalination
Volume	496
DOIs	https://doi.org/10.1016/j.desal.2020.114732
State	Published - 15 Dec 2020
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

Keywords

Forward osmosis
Nylon supporting membrane
Separation performance
Thin-film nanocomposite

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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@article{8cc49359438b407081a7dd74a43b054e,

title = "A novel cockscomb-like substrate-supported TFN-FO membrane with a dispersed bovine serum albumin (BSA)/gold nanoparticles (GNPs) interface layer exhibiting high performance",

abstract = "A novel thin-film nanocomposite (TFN) forward osmosis (FO) membrane was fabricated by loading bovine serum albumin (BSA)/gold nanoparticles (GNPs) on the surface of a cockscomb-like nylon supporting membrane. The influence of the embedded BSA/GNPs on surface morphology, surface roughness, surface charge, separation, and FO performance of the TFN-FO membrane was investigated. The water flux of the BSA/GNPs-modified FO membrane could be increased to 55.2 ± 5.4 LMH, and the Js/Jw value was substantially decreased to 0.034 g/L, indicating a high selectivity of the modified membrane. BSA/GNPs located between the top of the nylon supporting membrane and the bottom of the polyamide (PA) skin layer provided passage for water transport and increased the roughness of the PA layer, thus enhancing the effective area on which the osmotic pressure could act. In addition, BSA/GNPs located at the bottom surface of the nylon supporting membrane provided a nearly electroneutral surface in the solution and alleviated dilutive concentration polarization. In summary, choosing a nylon membrane with a special cockscomb-like surface structure as the supporting layer to load BSA/GNPs nanoparticles proved to be a creative and effective nano-modification method for fabricating high-performance TFN-FO membranes.",

keywords = "Forward osmosis, Nylon supporting membrane, Separation performance, Thin-film nanocomposite",

author = "Fuqing Ma and Chaojie Cai and Xinzhen Zhao and Hilal Ahmad and Changkun Liu",

note = "Publisher Copyright: {\textcopyright} 2020 Elsevier B.V.",

year = "2020",

month = dec,

day = "15",

doi = "10.1016/j.desal.2020.114732",

language = "English",

volume = "496",

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T1 - A novel cockscomb-like substrate-supported TFN-FO membrane with a dispersed bovine serum albumin (BSA)/gold nanoparticles (GNPs) interface layer exhibiting high performance

AU - Ma, Fuqing

AU - Cai, Chaojie

AU - Zhao, Xinzhen

AU - Ahmad, Hilal

AU - Liu, Changkun

PY - 2020/12/15

Y1 - 2020/12/15

N2 - A novel thin-film nanocomposite (TFN) forward osmosis (FO) membrane was fabricated by loading bovine serum albumin (BSA)/gold nanoparticles (GNPs) on the surface of a cockscomb-like nylon supporting membrane. The influence of the embedded BSA/GNPs on surface morphology, surface roughness, surface charge, separation, and FO performance of the TFN-FO membrane was investigated. The water flux of the BSA/GNPs-modified FO membrane could be increased to 55.2 ± 5.4 LMH, and the Js/Jw value was substantially decreased to 0.034 g/L, indicating a high selectivity of the modified membrane. BSA/GNPs located between the top of the nylon supporting membrane and the bottom of the polyamide (PA) skin layer provided passage for water transport and increased the roughness of the PA layer, thus enhancing the effective area on which the osmotic pressure could act. In addition, BSA/GNPs located at the bottom surface of the nylon supporting membrane provided a nearly electroneutral surface in the solution and alleviated dilutive concentration polarization. In summary, choosing a nylon membrane with a special cockscomb-like surface structure as the supporting layer to load BSA/GNPs nanoparticles proved to be a creative and effective nano-modification method for fabricating high-performance TFN-FO membranes.

AB - A novel thin-film nanocomposite (TFN) forward osmosis (FO) membrane was fabricated by loading bovine serum albumin (BSA)/gold nanoparticles (GNPs) on the surface of a cockscomb-like nylon supporting membrane. The influence of the embedded BSA/GNPs on surface morphology, surface roughness, surface charge, separation, and FO performance of the TFN-FO membrane was investigated. The water flux of the BSA/GNPs-modified FO membrane could be increased to 55.2 ± 5.4 LMH, and the Js/Jw value was substantially decreased to 0.034 g/L, indicating a high selectivity of the modified membrane. BSA/GNPs located between the top of the nylon supporting membrane and the bottom of the polyamide (PA) skin layer provided passage for water transport and increased the roughness of the PA layer, thus enhancing the effective area on which the osmotic pressure could act. In addition, BSA/GNPs located at the bottom surface of the nylon supporting membrane provided a nearly electroneutral surface in the solution and alleviated dilutive concentration polarization. In summary, choosing a nylon membrane with a special cockscomb-like surface structure as the supporting layer to load BSA/GNPs nanoparticles proved to be a creative and effective nano-modification method for fabricating high-performance TFN-FO membranes.

KW - Forward osmosis

KW - Nylon supporting membrane

KW - Separation performance

KW - Thin-film nanocomposite

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DO - 10.1016/j.desal.2020.114732

M3 - Article

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ER -

A novel cockscomb-like substrate-supported TFN-FO membrane with a dispersed bovine serum albumin (BSA)/gold nanoparticles (GNPs) interface layer exhibiting high performance

Abstract

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Keywords

ASJC Scopus subject areas

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