Synthesis and Modification of Nanoparticles for Surface Nanostructuration of Polymeric Membranes

Handle URI:
http://hdl.handle.net/10754/223431
Title:
Synthesis and Modification of Nanoparticles for Surface Nanostructuration of Polymeric Membranes
Authors:
Prada, Iran David Charry
Abstract:
The objectives of this work are (i) to prepare silver and TiO2 nanoparticles functionalized with polymers or alkoxysilanes as capping agents with specific control of morphology, size, and chemical reactivity and (ii) their attachment to the surface and pore wall of ultrafiltration membranes. These particles are interesting due to their known antibacterial, anti-biofouling efficiency, besides the photocatytic activity exhibited by TiO2. The first chapter focuses on the synthesis and characterization of silver nanoparticles. Their performance depends on the shape, size and other colloidal characteristics. A complete analysis of the effect of the stabilizer and pH conditions on particle size and shape was conducted by using polyethyleneimine and polyvinylpyrrolidone. Opposite trends and different morphologies were observed for both stabilizers. The second chapter describes the surface attachment of TiO2 nanoparticles onto polyetherimide ultrafiltration membrane with pore size around 134nm by using organoalkylsilanes. Excellent hydrophilicity (contact angle 39  2) and high and thermal stability (260oC) was achieved. Particles and membranes samples were characterized by microscopy, chemical and surface analysis.
Advisors:
Nunes, Suzana Pereira ( 0000-0002-3669-138X )
Committee Member:
Giannelis, Emmanuel P.; Peinemann, Klaus-Viktor
KAUST Department:
Physical Sciences and Engineering (PSE) Division
Program:
Chemical and Biological Engineering
Issue Date:
May-2012
Type:
Thesis
Appears in Collections:
Theses; Physical Sciences and Engineering (PSE) Division; Chemical and Biological Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.advisorNunes, Suzana Pereiraen
dc.contributor.authorPrada, Iran David Charryen
dc.date.accessioned2012-05-14T06:11:40Z-
dc.date.available2012-05-14T06:11:40Z-
dc.date.issued2012-05en
dc.identifier.urihttp://hdl.handle.net/10754/223431en
dc.description.abstractThe objectives of this work are (i) to prepare silver and TiO2 nanoparticles functionalized with polymers or alkoxysilanes as capping agents with specific control of morphology, size, and chemical reactivity and (ii) their attachment to the surface and pore wall of ultrafiltration membranes. These particles are interesting due to their known antibacterial, anti-biofouling efficiency, besides the photocatytic activity exhibited by TiO2. The first chapter focuses on the synthesis and characterization of silver nanoparticles. Their performance depends on the shape, size and other colloidal characteristics. A complete analysis of the effect of the stabilizer and pH conditions on particle size and shape was conducted by using polyethyleneimine and polyvinylpyrrolidone. Opposite trends and different morphologies were observed for both stabilizers. The second chapter describes the surface attachment of TiO2 nanoparticles onto polyetherimide ultrafiltration membrane with pore size around 134nm by using organoalkylsilanes. Excellent hydrophilicity (contact angle 39  2) and high and thermal stability (260oC) was achieved. Particles and membranes samples were characterized by microscopy, chemical and surface analysis.en
dc.language.isoenen
dc.titleSynthesis and Modification of Nanoparticles for Surface Nanostructuration of Polymeric Membranesen
dc.typeThesisen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
thesis.degree.grantorKing Abdullah University of Science and Technologyen_GB
dc.contributor.committeememberGiannelis, Emmanuel P.en
dc.contributor.committeememberPeinemann, Klaus-Viktoren
thesis.degree.disciplineChemical and Biological Engineeringen
thesis.degree.nameMaster of Scienceen
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