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- Publisher Website: 10.1016/j.desal.2016.01.037
- Scopus: eid_2-s2.0-84957709808
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Article: Fabrication and characterization of nanocomposite pressure retarded osmosis (PRO) membranes with excellent anti-biofouling property and enhanced water permeability
Title | Fabrication and characterization of nanocomposite pressure retarded osmosis (PRO) membranes with excellent anti-biofouling property and enhanced water permeability |
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Authors | |
Keywords | Anti-biofouling Layer-by-layer (lbl) assembly Nanocomposite membrane Pressure retarded osmosis (pro) Silver nanoparticles (agnps) |
Issue Date | 2016 |
Citation | Desalination, 2016, v. 389, p. 137-148 How to Cite? |
Abstract | Membrane biofouling is a critical barrier for prolonged membrane operations. In the current study, silver nanocomposite osmotic membranes were fabricated to impart anti-microbial properties. The PAN–Ag nanocomposite substrates were prepared using one-step phase inversion. With additional crosslinked layer-by-layer (xLbL) assembly on the nanocomposite substrates, xLbL3.0-Ag nanocomposite osmotic membranes were obtained. At the silver nanoparticle (AgNP) loading concentration of 0.02 wt.%, water permeability of xLbL3.0-Ag(0.02) nanocomposite osmotic membrane increased by 24.4% compared with the AgNP-free control. In addition, the silver nanocomposite membranes exhibited excellent anti-biofouling performances, with ~ 6 log colony-forming units (CFU) reduction against Gram-positive Bacillus subtilis and ~ 5 log CFU reduction against Gram-negative Escherichia coli at an AgNP loading of 0.10 wt.%. Water flux reduced to 66.9% (AgNP-free control) and 88.2% (xLbL3.0-Ag(0.10) nanocomposite osmotic membrane) of their respective original values for membranes fouled by Comamonas testosteroni I2 in PRO test mode. This study presents a convenient method to synthesize nanocomposite osmotic membranes with excellent anti-biofouling property for potential use for pressure retarded osmosis (PRO). Our results provide significant implications for anti-fouling nanocomposite osmotic membrane fabrication as well as PRO fouling control. |
Persistent Identifier | http://hdl.handle.net/10722/247300 |
ISSN | 2023 Impact Factor: 8.3 2023 SCImago Journal Rankings: 1.521 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Liu, X | - |
dc.contributor.author | Foo, L | - |
dc.contributor.author | Li, Y | - |
dc.contributor.author | Lee, J | - |
dc.contributor.author | Cao, B | - |
dc.contributor.author | Tang, C | - |
dc.date.accessioned | 2017-10-18T08:25:14Z | - |
dc.date.available | 2017-10-18T08:25:14Z | - |
dc.date.issued | 2016 | - |
dc.identifier.citation | Desalination, 2016, v. 389, p. 137-148 | - |
dc.identifier.issn | 0011-9164 | - |
dc.identifier.uri | http://hdl.handle.net/10722/247300 | - |
dc.description.abstract | Membrane biofouling is a critical barrier for prolonged membrane operations. In the current study, silver nanocomposite osmotic membranes were fabricated to impart anti-microbial properties. The PAN–Ag nanocomposite substrates were prepared using one-step phase inversion. With additional crosslinked layer-by-layer (xLbL) assembly on the nanocomposite substrates, xLbL3.0-Ag nanocomposite osmotic membranes were obtained. At the silver nanoparticle (AgNP) loading concentration of 0.02 wt.%, water permeability of xLbL3.0-Ag(0.02) nanocomposite osmotic membrane increased by 24.4% compared with the AgNP-free control. In addition, the silver nanocomposite membranes exhibited excellent anti-biofouling performances, with ~ 6 log colony-forming units (CFU) reduction against Gram-positive Bacillus subtilis and ~ 5 log CFU reduction against Gram-negative Escherichia coli at an AgNP loading of 0.10 wt.%. Water flux reduced to 66.9% (AgNP-free control) and 88.2% (xLbL3.0-Ag(0.10) nanocomposite osmotic membrane) of their respective original values for membranes fouled by Comamonas testosteroni I2 in PRO test mode. This study presents a convenient method to synthesize nanocomposite osmotic membranes with excellent anti-biofouling property for potential use for pressure retarded osmosis (PRO). Our results provide significant implications for anti-fouling nanocomposite osmotic membrane fabrication as well as PRO fouling control. | - |
dc.language | eng | - |
dc.relation.ispartof | Desalination | - |
dc.subject | Anti-biofouling | - |
dc.subject | Layer-by-layer (lbl) assembly | - |
dc.subject | Nanocomposite membrane | - |
dc.subject | Pressure retarded osmosis (pro) | - |
dc.subject | Silver nanoparticles (agnps) | - |
dc.title | Fabrication and characterization of nanocomposite pressure retarded osmosis (PRO) membranes with excellent anti-biofouling property and enhanced water permeability | - |
dc.type | Article | - |
dc.identifier.email | Tang, C: tangc@hku.hk | - |
dc.identifier.authority | Tang, C=rp01765 | - |
dc.identifier.doi | 10.1016/j.desal.2016.01.037 | - |
dc.identifier.scopus | eid_2-s2.0-84957709808 | - |
dc.identifier.hkuros | 281273 | - |
dc.identifier.volume | 389 | - |
dc.identifier.spage | 137 | - |
dc.identifier.epage | 148 | - |
dc.identifier.isi | WOS:000375818700014 | - |
dc.identifier.issnl | 0011-9164 | - |