Low, Liang Ee and Ooi, Chien Wei and Chan, Eng Seng and Ong, Boon Hoong and Tey, Beng Ti (2020) Dual (magnetic and pH) stimuli-reversible Pickering emulsions based on poly(2-(dimethylamino)ethyl methacrylate)-bonded Fe3O4 nanocomposites for oil recovery application. Journal of Environmental Chemical Engineering, 8 (2). ISSN 2213-2929, DOI https://doi.org/10.1016/j.jece.2020.103715.
Full text not available from this repository.Abstract
Stimuli-responsive Pickering emulsion system has received considerable scientific interests for myriad applications. In this contribution, nanocomposites (PDMNC) made of Fe3O4 nanoparticle and poly2-(dimethylamino) ethyl methacrylate] were prepared through a facile sonochemical in situ co-precipitation approach and were used in the preparation of Pickering emulsion system (PDMNC-PE). PDMNC-PE exhibited pH-responsive behavior and it was stable at pH ranging from 5 to 9. Upon magnetic exposure, PDMNC-PE underwent repeatable and rapid emulsification/demulsification triggered by a change in pH for at least six cycles. The stabilization/destabilization of PDMNC-PE was caused by the synergistic effect from magnetic force, surface hydrophobicity and zeta potential of PDMNC in response to pH, which resulted in the adsorption/desorption of PDMNC at the interface of the Pickering emulsions. The magnetic- and pH-reversible PDMNC-PE has a great potential for application in oil recovery.
| Item Type: | Article |
|---|---|
| Funders: | School of Engineering of Monash University Malaysia, Monash University |
| Uncontrolled Keywords: | PDMAEMA; Fe3O4; Pickering emulsions; Stimuli-responsive; Oil recovery |
| Subjects: | T Technology > TP Chemical technology |
| Divisions: | Deputy Vice Chancellor (Research & Innovation) Office > Nanotechnology & Catalysis Research Centre |
| Depositing User: | Ms Zaharah Ramly |
| Date Deposited: | 04 Oct 2023 04:53 |
| Last Modified: | 04 Oct 2023 04:53 |
| URI: | http://eprints.um.edu.my/id/eprint/36793 |
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