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Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient

A magnetic responsive of magnetic Pickering emulsion (MPE) was synergistically stabilized by the iron oxide nanoparticles (IONPs) coated by poly(sodium 4-styrenesulfonate) (PSS) and cetrimonium bromide (CTAB) as well as the adjacent CTAB molecules. In this project, MPE, IONPs, IONPs-PSS and IONP-PSS...

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Main Author: Tham, Foo Kean
Format: Thesis
Language:English
Published: 2020
Subjects:
T Technology
TP155-156 Chemical engineering
Online Access:http://eprints.usm.my/50399/1/Marcoscopic%20And%20Microscopic%20Motion%20Of%20Iron%20Oxide%20Magnetic%20Nanoparticles%20Stabilized%20Pickering%20Emulsion%2C%20Magnetophoresis%20At%20Low%20Field%20Gradient.pdf
http://eprints.usm.my/50399/
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spelling my.usm.eprints.50399 http://eprints.usm.my/50399/ Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient Tham, Foo Kean T Technology TP155-156 Chemical engineering A magnetic responsive of magnetic Pickering emulsion (MPE) was synergistically stabilized by the iron oxide nanoparticles (IONPs) coated by poly(sodium 4-styrenesulfonate) (PSS) and cetrimonium bromide (CTAB) as well as the adjacent CTAB molecules. In this project, MPE, IONPs, IONPs-PSS and IONP-PSS-CTAB were synthesized with their chemical, physical and magnetism properties thoroughly characterized. The synthesized MPE was studied under two main scales: (1) macroscopic and (2) microscopic experiment for the motion of MPE. For macroscopic experiment, the changing of turbidity of the MPE suspension was recorded by a digital camera using intervalometer. Whereas, a bright field optical microscope was employed to study the microscopic behavior of the Pickering emulsion. All images analysis were performed by standard technique using Image J. At the macroscopic scale, the magnetic separation efficiency of MPE at 90 % was achieved within 30 minutes for all condition. However, the colloidal stability of MPE at pH 10 was the lowest as compared to pH 3 and deionized water conditions. MPE at pH 10 required the shortest time for achieving the highest separation efficiency. Hence, MPE at pH 10 experienced cooperative magnetophoresis as it could be irreversible flocculated during magnetophoresis. Besides that, the MPE didn’t deform and coalescence under the magnetic field, B of 0.26 T~0.66 T and magnetic field gradient ( 2020-04-01 Thesis NonPeerReviewed application/pdf en http://eprints.usm.my/50399/1/Marcoscopic%20And%20Microscopic%20Motion%20Of%20Iron%20Oxide%20Magnetic%20Nanoparticles%20Stabilized%20Pickering%20Emulsion%2C%20Magnetophoresis%20At%20Low%20Field%20Gradient.pdf Tham, Foo Kean (2020) Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient. PhD thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
language English
topic T Technology
TP155-156 Chemical engineering
spellingShingle T Technology
TP155-156 Chemical engineering
Tham, Foo Kean
Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient
description A magnetic responsive of magnetic Pickering emulsion (MPE) was synergistically stabilized by the iron oxide nanoparticles (IONPs) coated by poly(sodium 4-styrenesulfonate) (PSS) and cetrimonium bromide (CTAB) as well as the adjacent CTAB molecules. In this project, MPE, IONPs, IONPs-PSS and IONP-PSS-CTAB were synthesized with their chemical, physical and magnetism properties thoroughly characterized. The synthesized MPE was studied under two main scales: (1) macroscopic and (2) microscopic experiment for the motion of MPE. For macroscopic experiment, the changing of turbidity of the MPE suspension was recorded by a digital camera using intervalometer. Whereas, a bright field optical microscope was employed to study the microscopic behavior of the Pickering emulsion. All images analysis were performed by standard technique using Image J. At the macroscopic scale, the magnetic separation efficiency of MPE at 90 % was achieved within 30 minutes for all condition. However, the colloidal stability of MPE at pH 10 was the lowest as compared to pH 3 and deionized water conditions. MPE at pH 10 required the shortest time for achieving the highest separation efficiency. Hence, MPE at pH 10 experienced cooperative magnetophoresis as it could be irreversible flocculated during magnetophoresis. Besides that, the MPE didn’t deform and coalescence under the magnetic field, B of 0.26 T~0.66 T and magnetic field gradient (
format Thesis
author Tham, Foo Kean
author_facet Tham, Foo Kean
author_sort Tham, Foo Kean
title Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient
title_short Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient
title_full Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient
title_fullStr Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient
title_full_unstemmed Marcoscopic And Microscopic Motion Of Iron Oxide Magnetic Nanoparticles Stabilized Pickering Emulsion, Magnetophoresis At Low Field Gradient
title_sort marcoscopic and microscopic motion of iron oxide magnetic nanoparticles stabilized pickering emulsion, magnetophoresis at low field gradient
publishDate 2020
url http://eprints.usm.my/50399/1/Marcoscopic%20And%20Microscopic%20Motion%20Of%20Iron%20Oxide%20Magnetic%20Nanoparticles%20Stabilized%20Pickering%20Emulsion%2C%20Magnetophoresis%20At%20Low%20Field%20Gradient.pdf
http://eprints.usm.my/50399/
_version_ 1717094508219334656
score 13.211869

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