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Article: Novel polyethyleneimine/TMC-based nanofiltration membrane prepared on a polydopamine coated substrate
Title | Novel polyethyleneimine/TMC-based nanofiltration membrane prepared on a polydopamine coated substrate |
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Authors | |
Keywords | nanofiltration polydopamine polyethyleneimine positively charged rejection layer trimesoyl chloride |
Issue Date | 2018 |
Publisher | Gaodeng Jiaoyu Chubanshe,Higher Education Press. |
Citation | Frontiers of Chemical Science and Engineering, 2018, v. 12 n. 2, p. 273-282 How to Cite? |
Abstract | Most commercial NF membranes are negatively charged at the pH range of a typical feed solution. In order to enhance the removal of cations (such as Mg2+ or Ca2+), we utilized polyethyleneimine (PEI) and trimesoyl chloride (TMC) to perform interfacial polymerization reaction on a polydopamine coated hydrolyzed polyacrylonitrile substrate to obtain a positively charged nanofiltration membrane. Effects of polydopamine coating time, PEI concentration, TMC reaction time and concentration on the membrane physicochemical properties and separation performance were systematically investigated using scanning electron microscopy, streaming potential and water contact angle measurements. The optimal NF membrane showed high rejection for divalent ions (93.6±2.6% for MgSO4, 92.4±1.3% for MgCl2, and 90.4±2.1% for Na2SO4), accompanied with NaCl rejection of 27.8±2.5% with a permeation flux of 17.2±2.8 L∙m–2∙h–1 at an applied pressure of 8 bar (salt concentrations were all 1000 mg∙L–1). The synthesized membranes showed promising potentials for the applications of water softening. © 2018, Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature. |
Persistent Identifier | http://hdl.handle.net/10722/264575 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 0.792 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Yang, Z | - |
dc.contributor.author | Huang, X | - |
dc.contributor.author | Wang, J | - |
dc.contributor.author | Tang, C | - |
dc.date.accessioned | 2018-10-22T07:57:14Z | - |
dc.date.available | 2018-10-22T07:57:14Z | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Frontiers of Chemical Science and Engineering, 2018, v. 12 n. 2, p. 273-282 | - |
dc.identifier.issn | 2095-0179 | - |
dc.identifier.uri | http://hdl.handle.net/10722/264575 | - |
dc.description.abstract | Most commercial NF membranes are negatively charged at the pH range of a typical feed solution. In order to enhance the removal of cations (such as Mg2+ or Ca2+), we utilized polyethyleneimine (PEI) and trimesoyl chloride (TMC) to perform interfacial polymerization reaction on a polydopamine coated hydrolyzed polyacrylonitrile substrate to obtain a positively charged nanofiltration membrane. Effects of polydopamine coating time, PEI concentration, TMC reaction time and concentration on the membrane physicochemical properties and separation performance were systematically investigated using scanning electron microscopy, streaming potential and water contact angle measurements. The optimal NF membrane showed high rejection for divalent ions (93.6±2.6% for MgSO4, 92.4±1.3% for MgCl2, and 90.4±2.1% for Na2SO4), accompanied with NaCl rejection of 27.8±2.5% with a permeation flux of 17.2±2.8 L∙m–2∙h–1 at an applied pressure of 8 bar (salt concentrations were all 1000 mg∙L–1). The synthesized membranes showed promising potentials for the applications of water softening. © 2018, Higher Education Press and Springer-Verlag GmbH Germany, part of Springer Nature. | - |
dc.language | eng | - |
dc.publisher | Gaodeng Jiaoyu Chubanshe,Higher Education Press. | - |
dc.relation.ispartof | Frontiers of Chemical Science and Engineering | - |
dc.subject | nanofiltration | - |
dc.subject | polydopamine | - |
dc.subject | polyethyleneimine | - |
dc.subject | positively charged rejection layer | - |
dc.subject | trimesoyl chloride | - |
dc.title | Novel polyethyleneimine/TMC-based nanofiltration membrane prepared on a polydopamine coated substrate | - |
dc.type | Article | - |
dc.identifier.email | Tang, C: tangc@hku.hk | - |
dc.identifier.authority | Tang, C=rp01765 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1007/s11705-017-1695-2 | - |
dc.identifier.scopus | eid_2-s2.0-85038634655 | - |
dc.identifier.hkuros | 295696 | - |
dc.identifier.volume | 12 | - |
dc.identifier.issue | 2 | - |
dc.identifier.spage | 273 | - |
dc.identifier.epage | 282 | - |
dc.identifier.isi | WOS:000432621700007 | - |
dc.publisher.place | China | - |
dc.identifier.issnl | 2095-0187 | - |