A high-performance and fouling resistant thin-film composite membrane prepared via coating TiO2 nanoparticles by sol-gel-derived spray method for PRO applications

Jungchan Kim; Dongwoo Suh; Choonsoo Kim; Youngbin Baek; Byeongho Lee; Hee Joong Kim; Jong Chan Lee; Jeyong Yoon

doi:10.1016/j.desal.2016.07.002

A high-performance and fouling resistant thin-film composite membrane prepared via coating TiO₂ nanoparticles by sol-gel-derived spray method for PRO applications

Jungchan Kim
, Dongwoo Suh
, Choonsoo Kim
, Youngbin Baek
, Byeongho Lee
, Hee Joong Kim
, Jong Chan Lee
, Jeyong Yoon

Chemical Engineering and Materials Science

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

42 Scopus citations

Abstract

Pressure retarded osmosis (PRO) is an attractive process for capturing renewable energy that requires high-performance and fouling-resistant membranes. Herein, we report a novel surface coating method that increases the water flux and organic fouling resistance of PRO membranes. The support layer of a commercial TFC was coated with TiO₂ nanoparticles (TNPs) via a sol-gel-derived spray coating method. This TNP coating imparted hydrophilic properties and a negative charge to the membrane surface. A TNP-coated membrane (TNP1.0) showed a 25% increase in water flux and a 50% decrease in reverse salt flux. The flux reduction of the TNP membrane was 32% less than that of a commercial TFC membrane in the presence of humic acid foulants. This suggests that a high-performance and fouling-resistant PRO membrane can be prepared using a TiO₂ sol-gel-derived spray coating method.

Original language	English (US)
Pages (from-to)	157-164
Number of pages	8
Journal	Desalination
Volume	397
DOIs	https://doi.org/10.1016/j.desal.2016.07.002
State	Published - Nov 1 2016

Bibliographical note

Publisher Copyright:
© 2016 Elsevier B.V.

Keywords

Fouling resistance
Performance enhancement
Pressure retarded osmosis
Surface modification
TiO nanoparticle coating
TiO sol-gel-derived spray coating

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Publisher link

10.1016/j.desal.2016.07.002

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title = "A high-performance and fouling resistant thin-film composite membrane prepared via coating TiO2 nanoparticles by sol-gel-derived spray method for PRO applications",

abstract = "Pressure retarded osmosis (PRO) is an attractive process for capturing renewable energy that requires high-performance and fouling-resistant membranes. Herein, we report a novel surface coating method that increases the water flux and organic fouling resistance of PRO membranes. The support layer of a commercial TFC was coated with TiO2 nanoparticles (TNPs) via a sol-gel-derived spray coating method. This TNP coating imparted hydrophilic properties and a negative charge to the membrane surface. A TNP-coated membrane (TNP1.0) showed a 25\% increase in water flux and a 50\% decrease in reverse salt flux. The flux reduction of the TNP membrane was 32\% less than that of a commercial TFC membrane in the presence of humic acid foulants. This suggests that a high-performance and fouling-resistant PRO membrane can be prepared using a TiO2 sol-gel-derived spray coating method.",

keywords = "Fouling resistance, Performance enhancement, Pressure retarded osmosis, Surface modification, TiO nanoparticle coating, TiO sol-gel-derived spray coating",

author = "Jungchan Kim and Dongwoo Suh and Choonsoo Kim and Youngbin Baek and Byeongho Lee and Kim, \{Hee Joong\} and Lee, \{Jong Chan\} and Jeyong Yoon",

note = "Publisher Copyright: {\textcopyright} 2016 Elsevier B.V.",

year = "2016",

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doi = "10.1016/j.desal.2016.07.002",

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AU - Kim, Jungchan

AU - Suh, Dongwoo

AU - Kim, Choonsoo

AU - Baek, Youngbin

AU - Lee, Byeongho

AU - Kim, Hee Joong

AU - Lee, Jong Chan

AU - Yoon, Jeyong

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Pressure retarded osmosis (PRO) is an attractive process for capturing renewable energy that requires high-performance and fouling-resistant membranes. Herein, we report a novel surface coating method that increases the water flux and organic fouling resistance of PRO membranes. The support layer of a commercial TFC was coated with TiO2 nanoparticles (TNPs) via a sol-gel-derived spray coating method. This TNP coating imparted hydrophilic properties and a negative charge to the membrane surface. A TNP-coated membrane (TNP1.0) showed a 25% increase in water flux and a 50% decrease in reverse salt flux. The flux reduction of the TNP membrane was 32% less than that of a commercial TFC membrane in the presence of humic acid foulants. This suggests that a high-performance and fouling-resistant PRO membrane can be prepared using a TiO2 sol-gel-derived spray coating method.

AB - Pressure retarded osmosis (PRO) is an attractive process for capturing renewable energy that requires high-performance and fouling-resistant membranes. Herein, we report a novel surface coating method that increases the water flux and organic fouling resistance of PRO membranes. The support layer of a commercial TFC was coated with TiO2 nanoparticles (TNPs) via a sol-gel-derived spray coating method. This TNP coating imparted hydrophilic properties and a negative charge to the membrane surface. A TNP-coated membrane (TNP1.0) showed a 25% increase in water flux and a 50% decrease in reverse salt flux. The flux reduction of the TNP membrane was 32% less than that of a commercial TFC membrane in the presence of humic acid foulants. This suggests that a high-performance and fouling-resistant PRO membrane can be prepared using a TiO2 sol-gel-derived spray coating method.

KW - Fouling resistance

KW - Performance enhancement

KW - Pressure retarded osmosis

KW - Surface modification

KW - TiO nanoparticle coating

KW - TiO sol-gel-derived spray coating

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