Cover Image

Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation

Microscopic observation was made to investigate the surface structure of porous polyvinylidene fluoride hollow fiber membranes. Field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), and the Guerout-Elford-Ferry equation applied for pure water permeation rate were used t...

Full description

Saved in:
Bibliographic Details
Main Authors: Yuliwati, Erna, Ismail, Ahmad Fauzi, Matsuura, Takeshi, Kassim, Mohd. Azraai, Abdullah, Mohd. Sohaimi
Format: Article
Published: Elsevier B.V. 2011
Subjects:
QD Chemistry
Online Access:http://eprints.utm.my/id/eprint/28835/
http://dx.doi.org/10.1016/j.desal.2011.02.037
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utm.28835
record_format eprints
spelling my.utm.288352019-01-28T03:46:42Z http://eprints.utm.my/id/eprint/28835/ Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation Yuliwati, Erna Ismail, Ahmad Fauzi Matsuura, Takeshi Kassim, Mohd. Azraai Abdullah, Mohd. Sohaimi QD Chemistry Microscopic observation was made to investigate the surface structure of porous polyvinylidene fluoride hollow fiber membranes. Field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), and the Guerout-Elford-Ferry equation applied for pure water permeation rate were used to determine the average pore sizes. As well, surface roughness parameters and nodule sizes were determined by AFM. The observed unmodified and modified PVDF hollow fiber membranes were prepared by dry-jet wet spinning method from spinning dope mixtures containing 19 wt.% PVDF, 0.98 wt.% lithium chloride (LiCl.H 2O) and 0, 1.95, and 3.85 wt.% titanium dioxide (TiO 2). Significant difference of spun fibers surface morphology was observed between inner and outer surface by AFM and FESEM. Higher TiO 2 concentration formed rougher surfaces, increased average nodule sizes, and decreased the pore size, resulting in lower permeation flux. Pore size obtained from AFM was intermediate between FESEM and the method based on the Guerout-Elford-Ferry equation. Elsevier B.V. 2011-12 Article PeerReviewed Yuliwati, Erna and Ismail, Ahmad Fauzi and Matsuura, Takeshi and Kassim, Mohd. Azraai and Abdullah, Mohd. Sohaimi (2011) Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation. Desalination, 283 . pp. 206-213. ISSN 0011-9164 http://dx.doi.org/10.1016/j.desal.2011.02.037 DOI:10.1016/j.desal.2011.02.037
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic QD Chemistry
spellingShingle QD Chemistry
Yuliwati, Erna
Ismail, Ahmad Fauzi
Matsuura, Takeshi
Kassim, Mohd. Azraai
Abdullah, Mohd. Sohaimi
Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation
description Microscopic observation was made to investigate the surface structure of porous polyvinylidene fluoride hollow fiber membranes. Field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), and the Guerout-Elford-Ferry equation applied for pure water permeation rate were used to determine the average pore sizes. As well, surface roughness parameters and nodule sizes were determined by AFM. The observed unmodified and modified PVDF hollow fiber membranes were prepared by dry-jet wet spinning method from spinning dope mixtures containing 19 wt.% PVDF, 0.98 wt.% lithium chloride (LiCl.H 2O) and 0, 1.95, and 3.85 wt.% titanium dioxide (TiO 2). Significant difference of spun fibers surface morphology was observed between inner and outer surface by AFM and FESEM. Higher TiO 2 concentration formed rougher surfaces, increased average nodule sizes, and decreased the pore size, resulting in lower permeation flux. Pore size obtained from AFM was intermediate between FESEM and the method based on the Guerout-Elford-Ferry equation.
format Article
author Yuliwati, Erna
Ismail, Ahmad Fauzi
Matsuura, Takeshi
Kassim, Mohd. Azraai
Abdullah, Mohd. Sohaimi
author_facet Yuliwati, Erna
Ismail, Ahmad Fauzi
Matsuura, Takeshi
Kassim, Mohd. Azraai
Abdullah, Mohd. Sohaimi
author_sort Yuliwati, Erna
title Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation
title_short Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation
title_full Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation
title_fullStr Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation
title_full_unstemmed Characterization of surface-modified porous PVDF hollow fibers for refinery wastewater treatment using microscopic observation
title_sort characterization of surface-modified porous pvdf hollow fibers for refinery wastewater treatment using microscopic observation
publisher Elsevier B.V.
publishDate 2011
url http://eprints.utm.my/id/eprint/28835/
http://dx.doi.org/10.1016/j.desal.2011.02.037
_version_ 1643648171786633216
score 13.211869

Similar Items