Preparation and characterization of SiO2/PDMS/PVDF composite membrane for phenols recovery from coal gasification wastewater in pervaporation

Dan Li; Jie Yao; Hao Sun; Bing Liu; Daoyu Li; Sjack van Agtmaal; Chunhui Feng

doi:10.1016/j.cherd.2018.01.045

Preparation and characterization of SiO₂/PDMS/PVDF composite membrane for phenols recovery from coal gasification wastewater in pervaporation

Dan Li
, Jie Yao^*
, Hao Sun
, Bing Liu
, Daoyu Li
, Sjack van Agtmaal
, Chunhui Feng

^*Corresponding author for this work

School of Environment, Harbin Institute of Technology
Urban Water Resources Development and Northern National Engineering Research Center
Evides Industriewater B.V.

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

40 Scopus citations

Abstract

Silica (SiO₂)/polydimethylsiloxane (PDMS)/polyvinylidene fluoride (PVDF) composite membranes were prepared through a dynamic negative pressure method for phenols recovery from coal gasification wastewater (CGW) in pervaporation process. Multiple techniques including scanning electron microscopy (SEM), water contact angle (WCA) and fourier transform adsorption spectrum (FTIR) were used to examine the surface morphology, hydrophobic properties and functional groups of the modified PVDF hollow fiber membranes, respectively. The effects of SiO₂ concentration, coating time and coating pressure on pervaporation performance were systematically studied. The operating conditions obtained are as follows: 12 wt.% SiO₂, coating time 60 min, coating pressure 50 kPa. Under the optimum conditions, the phenols flux and separation factor were obtained as 6.55 g m⁻² h⁻¹ and 2.59, respectively. Results show that separation factor in pervaporation process based on 12 wt.% SiO₂ filled PDMS/PVDF composite membranes was about 2.5 times higher than that of the PDMS/PVDF membrane.

Original language	English
Pages (from-to)	424-435
Number of pages	12
Journal	Chemical Engineering Research and Design
Volume	132
DOIs	https://doi.org/10.1016/j.cherd.2018.01.045
State	Published - Apr 2018
Externally published	Yes

Keywords

Coal gasification
Modification
PVDF hollow fiber membranes
Pervaporation
Phenols recovery

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10.1016/j.cherd.2018.01.045

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@article{d1869112fb8749219328d8ad54cbcef3,

title = "Preparation and characterization of SiO2/PDMS/PVDF composite membrane for phenols recovery from coal gasification wastewater in pervaporation",

abstract = "Silica (SiO2)/polydimethylsiloxane (PDMS)/polyvinylidene fluoride (PVDF) composite membranes were prepared through a dynamic negative pressure method for phenols recovery from coal gasification wastewater (CGW) in pervaporation process. Multiple techniques including scanning electron microscopy (SEM), water contact angle (WCA) and fourier transform adsorption spectrum (FTIR) were used to examine the surface morphology, hydrophobic properties and functional groups of the modified PVDF hollow fiber membranes, respectively. The effects of SiO2 concentration, coating time and coating pressure on pervaporation performance were systematically studied. The operating conditions obtained are as follows: 12 wt.\% SiO2, coating time 60 min, coating pressure 50 kPa. Under the optimum conditions, the phenols flux and separation factor were obtained as 6.55 g m−2 h−1 and 2.59, respectively. Results show that separation factor in pervaporation process based on 12 wt.\% SiO2 filled PDMS/PVDF composite membranes was about 2.5 times higher than that of the PDMS/PVDF membrane.",

keywords = "Coal gasification, Modification, PVDF hollow fiber membranes, Pervaporation, Phenols recovery",

author = "Dan Li and Jie Yao and Hao Sun and Bing Liu and Daoyu Li and \{van Agtmaal\}, Sjack and Chunhui Feng",

note = "Publisher Copyright: {\textcopyright} 2018",

year = "2018",

month = apr,

doi = "10.1016/j.cherd.2018.01.045",

language = "英语",

volume = "132",

pages = "424--435",

journal = "Chemical Engineering Research and Design",

issn = "0263-8762",

publisher = "Institution of Chemical Engineers",

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TY - JOUR

T1 - Preparation and characterization of SiO2/PDMS/PVDF composite membrane for phenols recovery from coal gasification wastewater in pervaporation

AU - Li, Dan

AU - Yao, Jie

AU - Sun, Hao

AU - Liu, Bing

AU - Li, Daoyu

AU - van Agtmaal, Sjack

AU - Feng, Chunhui

PY - 2018/4

Y1 - 2018/4

N2 - Silica (SiO2)/polydimethylsiloxane (PDMS)/polyvinylidene fluoride (PVDF) composite membranes were prepared through a dynamic negative pressure method for phenols recovery from coal gasification wastewater (CGW) in pervaporation process. Multiple techniques including scanning electron microscopy (SEM), water contact angle (WCA) and fourier transform adsorption spectrum (FTIR) were used to examine the surface morphology, hydrophobic properties and functional groups of the modified PVDF hollow fiber membranes, respectively. The effects of SiO2 concentration, coating time and coating pressure on pervaporation performance were systematically studied. The operating conditions obtained are as follows: 12 wt.% SiO2, coating time 60 min, coating pressure 50 kPa. Under the optimum conditions, the phenols flux and separation factor were obtained as 6.55 g m−2 h−1 and 2.59, respectively. Results show that separation factor in pervaporation process based on 12 wt.% SiO2 filled PDMS/PVDF composite membranes was about 2.5 times higher than that of the PDMS/PVDF membrane.

AB - Silica (SiO2)/polydimethylsiloxane (PDMS)/polyvinylidene fluoride (PVDF) composite membranes were prepared through a dynamic negative pressure method for phenols recovery from coal gasification wastewater (CGW) in pervaporation process. Multiple techniques including scanning electron microscopy (SEM), water contact angle (WCA) and fourier transform adsorption spectrum (FTIR) were used to examine the surface morphology, hydrophobic properties and functional groups of the modified PVDF hollow fiber membranes, respectively. The effects of SiO2 concentration, coating time and coating pressure on pervaporation performance were systematically studied. The operating conditions obtained are as follows: 12 wt.% SiO2, coating time 60 min, coating pressure 50 kPa. Under the optimum conditions, the phenols flux and separation factor were obtained as 6.55 g m−2 h−1 and 2.59, respectively. Results show that separation factor in pervaporation process based on 12 wt.% SiO2 filled PDMS/PVDF composite membranes was about 2.5 times higher than that of the PDMS/PVDF membrane.

KW - Coal gasification

KW - Modification

KW - PVDF hollow fiber membranes

KW - Pervaporation

KW - Phenols recovery

UR - https://www.scopus.com/pages/publications/85044375628

U2 - 10.1016/j.cherd.2018.01.045

DO - 10.1016/j.cherd.2018.01.045

M3 - 文章

AN - SCOPUS:85044375628

SN - 0263-8762

VL - 132

SP - 424

EP - 435

JO - Chemical Engineering Research and Design

JF - Chemical Engineering Research and Design

ER -

Preparation and characterization of SiO₂/PDMS/PVDF composite membrane for phenols recovery from coal gasification wastewater in pervaporation

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Keywords

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