eprintid: 9616 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/96/16 datestamp: 2023-11-09 16:36:15 lastmod: 2023-11-09 16:36:15 status_changed: 2023-11-09 16:29:24 type: conference_item metadata_visibility: show creators_name: Hidayat Chai, M.H. creators_name: Amir, N. creators_name: Yahya, N. creators_name: Saaid, I.M. title: Characterization and Colloidal Stability of Surface Modified Zinc Oxide Nanoparticle ispublished: pub keywords: Colloids; Fourier transform infrared spectroscopy; Heat transfer; Hydrodynamics; II-VI semiconductors; Metal nanoparticles; Nanofluidics; Particle size; Porous materials; Scanning electron microscopy; Stability; Surface active agents; Viscosity; Wetting; Zinc oxide, Colloidal Stability; Disjoining pressures; Lower viscosities; Nano-sized particles; Oil and Gas Industry; Poor heat transfer; Rheological behaviors; Ultrafine particle, ZnO nanoparticles note: cited By 30; Conference of 5th International Conference on Fundamental and Applied Sciences, ICFAS 2018 ; Conference Date: 13 August 2018 Through 15 August 2018; Conference Code:142772 abstract: This paper mainly studies the characterization and colloidal stability of surface modified zinc oxide nanoparticle and pure zinc oxide nanoparticle. According to IUPAC definition, ultrafine particles are always in the range of within 100 nm called nano-sized particle which expressed in term of perfect spherical diameter. Nanotechnology has immersed into various sector of oil and gas industries. In recent decades, vast amount of research has been done using zinc oxide nanoparticle related products effect on disjoining pressure mechanism in porous medium, interfacial tension (IFT) and wettability. Several types of nanoparticles have been evaluated through interfacial tension and wettability. Disadvantage of poor colloidal stability of nanoparticle in fluid is aggregation and sedimentation which leads poor heat transfer. In this study, zinc oxide nanoparticle was used as core to be functionalized. Surfactant was used to surface modify ZnO nanoparticle. Surface modified ZnO nanoparticle and pure ZnO nanoparticle were characterized using Scanning Electron Microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). Stability and hydrodynamic size of surface modified and pure zinc oxide nanofluid are examined using Zetasizer Nano ZS. Rheological behavior of nanofluids were determined through rheometer. The peak of surface modified and pure ZnO nanofluid were 62.94 nm and 386.4 nm respectively. There is a decrease of 83.71 of hydrodynamic size of nanoparticle after surface modified. ZnO nanofluid has the stability of -14.2 mV while surface modified ZnO has the zeta potential of -45.4 mV. Increase of 219.72 more stable compared to pure ZnO nanofluid. Pure ZnO nanofluid showed viscosity increment which could because of the sedimentation of nanoparticle occurs. Lower viscosity of surface modified ZnO nanofluid might due to SDS surfactant. © Published under licence by IOP Publishing Ltd. date: 2018 publisher: Institute of Physics Publishing official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85058208506&doi=10.1088%2f1742-6596%2f1123%2f1%2f012007&partnerID=40&md5=dfa369a42df5c7e9d053c91a354ceaa1 id_number: 10.1088/1742-6596/1123/1/012007 full_text_status: none publication: Journal of Physics: Conference Series volume: 1123 number: 1 refereed: TRUE issn: 17426588 citation: Hidayat Chai, M.H. and Amir, N. and Yahya, N. and Saaid, I.M. (2018) Characterization and Colloidal Stability of Surface Modified Zinc Oxide Nanoparticle. In: UNSPECIFIED.