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Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes

Abstract: It has been found that the preparation of green silica based on agricultural crops preserves environmental sustainability. In this study, rice husk silica (RHS) ash was prepared by burning rice husk (RH) at different temperatures (400 and 1200 °C). Both types of green RHS ash additives wer...

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Main Authors: Alias, S. S., Harun, Z., Manoh, N., Jamalludin, M. R.
Format: Article
Published: Springer 2020
Subjects:
QC Physics
Online Access:http://eprints.utm.my/id/eprint/93992/
http://www.dx.doi.org/10.1007/s00289-019-02950-5
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spelling my.utm.939922022-02-28T13:16:47Z http://eprints.utm.my/id/eprint/93992/ Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes Alias, S. S. Harun, Z. Manoh, N. Jamalludin, M. R. QC Physics Abstract: It has been found that the preparation of green silica based on agricultural crops preserves environmental sustainability. In this study, rice husk silica (RHS) ash was prepared by burning rice husk (RH) at different temperatures (400 and 1200 °C). Both types of green RHS ash additives were blended with polysulfone dope, after which membranes were fabricated via phase inversion. The RHS ash that was synthesised at 400 °C (RHS400) had an amorphous structure with strong hydrophilic properties, while the composite membrane containing 3 wt% of RHS400 (A3 membrane) achieved the optimum properties of a dense top, an extended sub-layer of continuous smaller finger-like pores and a bottom layer of macrovoids. A satisfactory mean surface roughness, average pore size (1.90 ± 9.50 × 10−2 µm), porosity (40.66 ± 2.03%) and tensile strength (3.27 ± 0.16 MPa) were also obtained. The contact angle (52.5° ± 3.6°) further proved that this membrane was hydrophilic. The elemental and thermal analyses confirmed the presence of Si and O, which correlated with the 12% residual that was contributed by the silica inside the membrane. The optimum properties of the A3 membrane were an increased PWF (154.04 ± 7.70 L m−2 h−1) with the highest rejection of HA (96.00 ± 4.80%) and a fouling mitigation with the lowest internal resistance (6.79 ± 0.34 × 1012 m−1). Graphic abstract: [Figure not available: see fulltext.] Springer 2020 Article PeerReviewed Alias, S. S. and Harun, Z. and Manoh, N. and Jamalludin, M. R. (2020) Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes. Polymer Bulletin, 77 (8). pp. 4043-4075. ISSN 0170-0839 http://www.dx.doi.org/10.1007/s00289-019-02950-5 DOI: 10.1007/s00289-019-02950-5
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 QC Physics
spellingShingle QC Physics
Alias, S. S.
Harun, Z.
Manoh, N.
Jamalludin, M. R.
Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes
description Abstract: It has been found that the preparation of green silica based on agricultural crops preserves environmental sustainability. In this study, rice husk silica (RHS) ash was prepared by burning rice husk (RH) at different temperatures (400 and 1200 °C). Both types of green RHS ash additives were blended with polysulfone dope, after which membranes were fabricated via phase inversion. The RHS ash that was synthesised at 400 °C (RHS400) had an amorphous structure with strong hydrophilic properties, while the composite membrane containing 3 wt% of RHS400 (A3 membrane) achieved the optimum properties of a dense top, an extended sub-layer of continuous smaller finger-like pores and a bottom layer of macrovoids. A satisfactory mean surface roughness, average pore size (1.90 ± 9.50 × 10−2 µm), porosity (40.66 ± 2.03%) and tensile strength (3.27 ± 0.16 MPa) were also obtained. The contact angle (52.5° ± 3.6°) further proved that this membrane was hydrophilic. The elemental and thermal analyses confirmed the presence of Si and O, which correlated with the 12% residual that was contributed by the silica inside the membrane. The optimum properties of the A3 membrane were an increased PWF (154.04 ± 7.70 L m−2 h−1) with the highest rejection of HA (96.00 ± 4.80%) and a fouling mitigation with the lowest internal resistance (6.79 ± 0.34 × 1012 m−1). Graphic abstract: [Figure not available: see fulltext.]
format Article
author Alias, S. S.
Harun, Z.
Manoh, N.
Jamalludin, M. R.
author_facet Alias, S. S.
Harun, Z.
Manoh, N.
Jamalludin, M. R.
author_sort Alias, S. S.
title Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes
title_short Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes
title_full Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes
title_fullStr Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes
title_full_unstemmed Effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-RHS ash mixed matrix composite membranes
title_sort effects of temperature on rice husk silica ash additive for fouling mitigation by polysulfone-rhs ash mixed matrix composite membranes
publisher Springer
publishDate 2020
url http://eprints.utm.my/id/eprint/93992/
http://www.dx.doi.org/10.1007/s00289-019-02950-5
_version_ 1726791464819621888
score 13.211869

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