Polyvinyl alcohol modified quasi-symmetric thin film inorganic membrane for enhanced forward osmosis performance

Yijian Zhong; Jinna Zhang; Xiuheng Wang; Nanqi Ren

doi:10.11918/j.issn.0367-6234.2015.08.002

Polyvinyl alcohol modified quasi-symmetric thin film inorganic membrane for enhanced forward osmosis performance

Yijian Zhong
, Jinna Zhang
, Xiuheng Wang^*
, Nanqi Ren

^*Corresponding author for this work

School of Environment

Harbin Institute of Technology

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

1 Scopus citations

Abstract

To further promote the FO performance of QSTFI membrane, polyvinyl alcohol (PVA) modified QSTFI membrane (PVA-QSTFI) has been developed. The characterization results indicated that the incorporation of a small amount of PVA onto the QSTFI membrane has significant influence on the surface hydrophilicity, pore structure, surface charge and thus FO performance. An optimum PVA loading rate of 0.5% was chosen based on the water flux and specific salt flux experiments. Using the 2.0 mol·L^-1 NaCl as DS, deionized water as FS, the modified membrane offered a 67.08 L·m^-2·h^-1 water flux at 25 ℃, was 12% higher than that of QSTFI membrane. Meanwhile, a specific salt flux of 0.15 g·L^-1 was obtained, which is 16.7% lower than QSTFI membrane.

Original language	English
Pages (from-to)	7-11
Number of pages	5
Journal	Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology
Volume	47
Issue number	8
DOIs	https://doi.org/10.11918/j.issn.0367-6234.2015.08.002
State	Published - 30 Aug 2015

Keywords

Forward osmosis membrane
Hydrophilicity
PVA modification
Salt flux
Water flux

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10.11918/j.issn.0367-6234.2015.08.002

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@article{7a5ed0fb600f4d2f8a5bf3b67b45f73a,

title = "Polyvinyl alcohol modified quasi-symmetric thin film inorganic membrane for enhanced forward osmosis performance",

abstract = "To further promote the FO performance of QSTFI membrane, polyvinyl alcohol (PVA) modified QSTFI membrane (PVA-QSTFI) has been developed. The characterization results indicated that the incorporation of a small amount of PVA onto the QSTFI membrane has significant influence on the surface hydrophilicity, pore structure, surface charge and thus FO performance. An optimum PVA loading rate of 0.5\% was chosen based on the water flux and specific salt flux experiments. Using the 2.0 mol·L-1 NaCl as DS, deionized water as FS, the modified membrane offered a 67.08 L·m-2·h-1 water flux at 25 ℃, was 12\% higher than that of QSTFI membrane. Meanwhile, a specific salt flux of 0.15 g·L-1 was obtained, which is 16.7\% lower than QSTFI membrane.",

keywords = "Forward osmosis membrane, Hydrophilicity, PVA modification, Salt flux, Water flux",

author = "Yijian Zhong and Jinna Zhang and Xiuheng Wang and Nanqi Ren",

year = "2015",

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doi = "10.11918/j.issn.0367-6234.2015.08.002",

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TY - JOUR

T1 - Polyvinyl alcohol modified quasi-symmetric thin film inorganic membrane for enhanced forward osmosis performance

AU - Zhong, Yijian

AU - Zhang, Jinna

AU - Wang, Xiuheng

AU - Ren, Nanqi

PY - 2015/8/30

Y1 - 2015/8/30

N2 - To further promote the FO performance of QSTFI membrane, polyvinyl alcohol (PVA) modified QSTFI membrane (PVA-QSTFI) has been developed. The characterization results indicated that the incorporation of a small amount of PVA onto the QSTFI membrane has significant influence on the surface hydrophilicity, pore structure, surface charge and thus FO performance. An optimum PVA loading rate of 0.5% was chosen based on the water flux and specific salt flux experiments. Using the 2.0 mol·L-1 NaCl as DS, deionized water as FS, the modified membrane offered a 67.08 L·m-2·h-1 water flux at 25 ℃, was 12% higher than that of QSTFI membrane. Meanwhile, a specific salt flux of 0.15 g·L-1 was obtained, which is 16.7% lower than QSTFI membrane.

AB - To further promote the FO performance of QSTFI membrane, polyvinyl alcohol (PVA) modified QSTFI membrane (PVA-QSTFI) has been developed. The characterization results indicated that the incorporation of a small amount of PVA onto the QSTFI membrane has significant influence on the surface hydrophilicity, pore structure, surface charge and thus FO performance. An optimum PVA loading rate of 0.5% was chosen based on the water flux and specific salt flux experiments. Using the 2.0 mol·L-1 NaCl as DS, deionized water as FS, the modified membrane offered a 67.08 L·m-2·h-1 water flux at 25 ℃, was 12% higher than that of QSTFI membrane. Meanwhile, a specific salt flux of 0.15 g·L-1 was obtained, which is 16.7% lower than QSTFI membrane.

KW - Forward osmosis membrane

KW - Hydrophilicity

KW - PVA modification

KW - Salt flux

KW - Water flux

UR - https://www.scopus.com/pages/publications/84943571975

U2 - 10.11918/j.issn.0367-6234.2015.08.002

DO - 10.11918/j.issn.0367-6234.2015.08.002

M3 - 文章

AN - SCOPUS:84943571975

SN - 0367-6234

VL - 47

SP - 7

EP - 11

JO - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

JF - Harbin Gongye Daxue Xuebao/Journal of Harbin Institute of Technology

IS - 8

ER -

Polyvinyl alcohol modified quasi-symmetric thin film inorganic membrane for enhanced forward osmosis performance

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Keywords

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