Hyperbranched polyethyleneimine induced polycationic membranes for improved fouling resistance and high RO performance
The study shows a new method for hyperbranched polyethyleneimine (HPEI) induced polycation membranes with an objective of achieving better fouling resistance and high reverse osmosis (RO) performance. Chemically crosslinked composite membrane (CCCM) was prepared with polyvinyl alcohol (PVA), male...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier Ltd.
2016
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/14298/ http://ir.unimas.my/id/eprint/14298/1/Hyperbranched%20polyethyleneimine%20induced%20polycationic%20%28abstract%29.pdf |
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| author | Aneela, Sabir Wail, Falath Jacob, Karl I. Muhammad, Shafiq Muhammad Azeem, Munawar Atif, Islam Nafisa, Gull Muhammad Taqi, Zahid Butt Khairuddin, Sanaullah Tahir, Jamil |
| author_facet | Aneela, Sabir Wail, Falath Jacob, Karl I. Muhammad, Shafiq Muhammad Azeem, Munawar Atif, Islam Nafisa, Gull Muhammad Taqi, Zahid Butt Khairuddin, Sanaullah Tahir, Jamil |
| author_sort | Aneela, Sabir |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | The study shows a new method for hyperbranched polyethyleneimine (HPEI) induced
polycation membranes with an objective of achieving better fouling resistance and high
reverse osmosis (RO) performance. Chemically crosslinked composite membrane (CCCM)
was prepared with polyvinyl alcohol (PVA), maleic acid (MA) and Pluronic F127 via chemical
crosslinking methodology. Polycation induced membranes were fabricated by surface
coating of HPEI onto the CCCM (PVA/MA/PluronicF127) RO membranes. Functional group
analysis, morphology and surface roughness of CCCM and HPEI-RO membranes were analyzed
by Fourier transform infrared spectroscopy, scanning electron microscopy and
atomic force microscopy respectively. The hydrophilicity and water permeability of
CCCM and HPEI-RO were examined with water contact angle measurement and RO performance
test. Optimum RO performance was obtained for HPEI-RO3 membrane with NaCl
and MgSO4, as for RNaCl = 96.1%, JNaCl = 58.2 L m�2 h�1 and RMgSO4 = 99.6%,
JMgSO4 = 15.8 L m�2 h�1 (testing with 3.28 wt.% aqueous NaCl and MgSO4 solution at 25 �C
and 55 bar). Moreover, cetyl trimethylammonium bromide (CTAB) as standard foulants
presented a smaller fouling tendency for the modified HPEI-RO3 membrane. HPEI-RO3
compared to the unmodified membrane, was able to decrease the stickiness of charged
bacteria, Gram negative Escherichia coli and Gram positive Staphylococcus epidermidis.
Therefore, the permeation flux, salt rejection and fouling resistant property of membrane
(HPEI-RO3) were significantly improved with polycation induction into the membranes. |
| first_indexed | 2025-11-15T06:42:29Z |
| format | Article |
| id | unimas-14298 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:42:29Z |
| publishDate | 2016 |
| publisher | Elsevier Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-142982017-01-17T00:32:53Z http://ir.unimas.my/id/eprint/14298/ Hyperbranched polyethyleneimine induced polycationic membranes for improved fouling resistance and high RO performance Aneela, Sabir Wail, Falath Jacob, Karl I. Muhammad, Shafiq Muhammad Azeem, Munawar Atif, Islam Nafisa, Gull Muhammad Taqi, Zahid Butt Khairuddin, Sanaullah Tahir, Jamil TP Chemical technology The study shows a new method for hyperbranched polyethyleneimine (HPEI) induced polycation membranes with an objective of achieving better fouling resistance and high reverse osmosis (RO) performance. Chemically crosslinked composite membrane (CCCM) was prepared with polyvinyl alcohol (PVA), maleic acid (MA) and Pluronic F127 via chemical crosslinking methodology. Polycation induced membranes were fabricated by surface coating of HPEI onto the CCCM (PVA/MA/PluronicF127) RO membranes. Functional group analysis, morphology and surface roughness of CCCM and HPEI-RO membranes were analyzed by Fourier transform infrared spectroscopy, scanning electron microscopy and atomic force microscopy respectively. The hydrophilicity and water permeability of CCCM and HPEI-RO were examined with water contact angle measurement and RO performance test. Optimum RO performance was obtained for HPEI-RO3 membrane with NaCl and MgSO4, as for RNaCl = 96.1%, JNaCl = 58.2 L m�2 h�1 and RMgSO4 = 99.6%, JMgSO4 = 15.8 L m�2 h�1 (testing with 3.28 wt.% aqueous NaCl and MgSO4 solution at 25 �C and 55 bar). Moreover, cetyl trimethylammonium bromide (CTAB) as standard foulants presented a smaller fouling tendency for the modified HPEI-RO3 membrane. HPEI-RO3 compared to the unmodified membrane, was able to decrease the stickiness of charged bacteria, Gram negative Escherichia coli and Gram positive Staphylococcus epidermidis. Therefore, the permeation flux, salt rejection and fouling resistant property of membrane (HPEI-RO3) were significantly improved with polycation induction into the membranes. Elsevier Ltd. 2016 Article PeerReviewed text en http://ir.unimas.my/id/eprint/14298/1/Hyperbranched%20polyethyleneimine%20induced%20polycationic%20%28abstract%29.pdf Aneela, Sabir and Wail, Falath and Jacob, Karl I. and Muhammad, Shafiq and Muhammad Azeem, Munawar and Atif, Islam and Nafisa, Gull and Muhammad Taqi, Zahid Butt and Khairuddin, Sanaullah and Tahir, Jamil (2016) Hyperbranched polyethyleneimine induced polycationic membranes for improved fouling resistance and high RO performance. European Polymer Journal, 85. pp. 266-278. ISSN 0014-3057 http://dx.doi.org/10.1016/j.eurpolymj.2016.10.032 http://dx.doi.org/10.1016/j.eurpolymj.2016.10.032 |
| spellingShingle | TP Chemical technology Aneela, Sabir Wail, Falath Jacob, Karl I. Muhammad, Shafiq Muhammad Azeem, Munawar Atif, Islam Nafisa, Gull Muhammad Taqi, Zahid Butt Khairuddin, Sanaullah Tahir, Jamil Hyperbranched polyethyleneimine induced polycationic membranes for improved fouling resistance and high RO performance |
| title | Hyperbranched polyethyleneimine induced polycationic
membranes for improved fouling resistance and high RO
performance |
| title_full | Hyperbranched polyethyleneimine induced polycationic
membranes for improved fouling resistance and high RO
performance |
| title_fullStr | Hyperbranched polyethyleneimine induced polycationic
membranes for improved fouling resistance and high RO
performance |
| title_full_unstemmed | Hyperbranched polyethyleneimine induced polycationic
membranes for improved fouling resistance and high RO
performance |
| title_short | Hyperbranched polyethyleneimine induced polycationic
membranes for improved fouling resistance and high RO
performance |
| title_sort | hyperbranched polyethyleneimine induced polycationic
membranes for improved fouling resistance and high ro
performance |
| topic | TP Chemical technology |
| url | http://ir.unimas.my/id/eprint/14298/ http://ir.unimas.my/id/eprint/14298/ http://ir.unimas.my/id/eprint/14298/ http://ir.unimas.my/id/eprint/14298/1/Hyperbranched%20polyethyleneimine%20induced%20polycationic%20%28abstract%29.pdf |