Self-assembled nanofiltration membrane containing antimicrobial organosilica prepared by sol-gel process

Ajay K. Singh; Amit K. Thakur; Vinod K. Shahi

doi:10.1016/j.desal.2012.10.011

Self-assembled nanofiltration membrane containing antimicrobial organosilica prepared by sol-gel process

Ajay K. Singh, Amit K. Thakur, Vinod K. Shahi

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

A new silica monomer precursor, bis(4'-aminopropyldiethoxysilylphenyl) 1,3,4-oxadiazole (APDSPO), was synthesized by Barbiar-Grignard reaction. Nanofiltration membranes containing APDSPO (biocide active) and polyvinyl alcohol (PVA), were prepared by acid catalyzed sol-gel followed by formal cross-linking. These membranes were designed with good stabilities (hydraulic, mechanical and chemical), separation performance, and low surface roughness. These membranes showed microbial growth inhibiting properties and thus anti-biofilm/fouling nature. About 35.2Lm^-2h^-1 flux and 54.5% salt rejection for feed NaCl solution (1g/L) at 0.62MPa applied pressure, indicate the suitability of membrane (PO-6) for water purification. Membrane performance data also ruled out anti-biofouling nature of PO-6 membrane.

Original language	English
Pages (from-to)	275-283
Number of pages	9
Journal	Desalination
Volume	309
DOIs	https://doi.org/10.1016/j.desal.2012.10.011
State	Published - 15 Jan 2013
Externally published	Yes

Keywords

Anti-biofouling
Bis(4'-aminopropyl diethoxysilylphenyl) 1,3,4-oxadiazole
Nanofiltration
Polyvinyl alcohol

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering
General Materials Science
Water Science and Technology
Mechanical Engineering

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10.1016/j.desal.2012.10.011

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@article{75055f0e5d624cabb6d00176ec3a85ca,

title = "Self-assembled nanofiltration membrane containing antimicrobial organosilica prepared by sol-gel process",

abstract = "A new silica monomer precursor, bis(4'-aminopropyldiethoxysilylphenyl) 1,3,4-oxadiazole (APDSPO), was synthesized by Barbiar-Grignard reaction. Nanofiltration membranes containing APDSPO (biocide active) and polyvinyl alcohol (PVA), were prepared by acid catalyzed sol-gel followed by formal cross-linking. These membranes were designed with good stabilities (hydraulic, mechanical and chemical), separation performance, and low surface roughness. These membranes showed microbial growth inhibiting properties and thus anti-biofilm/fouling nature. About 35.2Lm-2h-1 flux and 54.5% salt rejection for feed NaCl solution (1g/L) at 0.62MPa applied pressure, indicate the suitability of membrane (PO-6) for water purification. Membrane performance data also ruled out anti-biofouling nature of PO-6 membrane.",

keywords = "Anti-biofouling, Bis(4'-aminopropyl diethoxysilylphenyl) 1,3,4-oxadiazole, Nanofiltration, Polyvinyl alcohol",

author = "Singh, {Ajay K.} and Thakur, {Amit K.} and Shahi, {Vinod K.}",

note = "Funding Information: One of the authors (AKS) is grateful to CSIR, New Delhi for providing Senior Research Fellowship (Ext). Instrumental support received from Analytical Science Division, CSMCRI is gratefully acknowledged. Authors are thankful to reviewer for very relevant and supportive suggestions which improved the quality of the manuscript. ",

year = "2013",

month = jan,

day = "15",

doi = "10.1016/j.desal.2012.10.011",

language = "English",

volume = "309",

pages = "275--283",

journal = "Desalination",

issn = "0011-9164",

publisher = "Elsevier B.V.",

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T1 - Self-assembled nanofiltration membrane containing antimicrobial organosilica prepared by sol-gel process

AU - Singh, Ajay K.

AU - Thakur, Amit K.

AU - Shahi, Vinod K.

N1 - Funding Information: One of the authors (AKS) is grateful to CSIR, New Delhi for providing Senior Research Fellowship (Ext). Instrumental support received from Analytical Science Division, CSMCRI is gratefully acknowledged. Authors are thankful to reviewer for very relevant and supportive suggestions which improved the quality of the manuscript.

PY - 2013/1/15

Y1 - 2013/1/15

N2 - A new silica monomer precursor, bis(4'-aminopropyldiethoxysilylphenyl) 1,3,4-oxadiazole (APDSPO), was synthesized by Barbiar-Grignard reaction. Nanofiltration membranes containing APDSPO (biocide active) and polyvinyl alcohol (PVA), were prepared by acid catalyzed sol-gel followed by formal cross-linking. These membranes were designed with good stabilities (hydraulic, mechanical and chemical), separation performance, and low surface roughness. These membranes showed microbial growth inhibiting properties and thus anti-biofilm/fouling nature. About 35.2Lm-2h-1 flux and 54.5% salt rejection for feed NaCl solution (1g/L) at 0.62MPa applied pressure, indicate the suitability of membrane (PO-6) for water purification. Membrane performance data also ruled out anti-biofouling nature of PO-6 membrane.

AB - A new silica monomer precursor, bis(4'-aminopropyldiethoxysilylphenyl) 1,3,4-oxadiazole (APDSPO), was synthesized by Barbiar-Grignard reaction. Nanofiltration membranes containing APDSPO (biocide active) and polyvinyl alcohol (PVA), were prepared by acid catalyzed sol-gel followed by formal cross-linking. These membranes were designed with good stabilities (hydraulic, mechanical and chemical), separation performance, and low surface roughness. These membranes showed microbial growth inhibiting properties and thus anti-biofilm/fouling nature. About 35.2Lm-2h-1 flux and 54.5% salt rejection for feed NaCl solution (1g/L) at 0.62MPa applied pressure, indicate the suitability of membrane (PO-6) for water purification. Membrane performance data also ruled out anti-biofouling nature of PO-6 membrane.

KW - Anti-biofouling

KW - Bis(4'-aminopropyl diethoxysilylphenyl) 1,3,4-oxadiazole

KW - Nanofiltration

KW - Polyvinyl alcohol

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U2 - 10.1016/j.desal.2012.10.011

DO - 10.1016/j.desal.2012.10.011

M3 - Article

AN - SCOPUS:84870953832

SN - 0011-9164

VL - 309

SP - 275

EP - 283

JO - Desalination

JF - Desalination

ER -

Self-assembled nanofiltration membrane containing antimicrobial organosilica prepared by sol-gel process

Abstract

Keywords

ASJC Scopus subject areas

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