eprintid: 6653 rev_number: 2 eprint_status: archive userid: 1 dir: disk0/00/00/66/53 datestamp: 2023-11-09 16:18:26 lastmod: 2023-11-09 16:18:26 status_changed: 2023-11-09 16:07:19 type: conference_item metadata_visibility: show creators_name: Adil, M. creators_name: Zaid, H.M. creators_name: Chuan, L.K. creators_name: Latiff, N.R.A. title: Effect of CMC on the stability of ZnO nanofluid at high temperature and salinity ispublished: pub note: cited By 15; Conference of 4th International Conference on Fundamental and Applied Sciences, ICFAS 2016 ; Conference Date: 15 August 2016 Through 17 August 2016; Conference Code:125141 abstract: In this research, the critical micellar concentration (CMC) of different anionic surfactants was determined by employing the UV-Vis spectroscopic technique. The CMC is crucial to evaluate the adsorption of anionic surfactant on a surface of charged metal oxide (i.e. zinc oxide), to prepare a stable nanofluid for different applications including enahced oil recovery (EOR). Three anionic surfactants (sodium dodecyl sulfate, sodium dodecylbenzenesulfonate and oleic acid) were studied in this research. The amount of CMC was determined in the deionized water and brine solution, using the values from the data extracted from the graph between absorbance and concentration of surfactants. A comparative study was also conducted based on CMC results that shows a good agreement between the present research and the literature. In addition, the effect of temperature on CMC value was also examined which provide a better stability of ZnO nanofluid in the high-temperature environment. The overall result reveals that with an addition of salt to the anionic surfactant, repulsive force increases which lead to a decrease in the CMC value. Whereas with the increase in temperature the free energy of the system is affected the result in an additional decline in CMC. However, this decrease is higher in a case of SDS and relatively lower in the case of SDBS and oleic acid. These results suggest that CMC play a significant role to tailor a stable dispersion, to match the conditions of the corresponding application. © 2016 Author(s). date: 2016 publisher: American Institute of Physics Inc. official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85005959781&doi=10.1063%2f1.4968116&partnerID=40&md5=e2e9289b5c3134500ff6f8250b021686 id_number: 10.1063/1.4968116 full_text_status: none publication: AIP Conference Proceedings volume: 1787 refereed: TRUE isbn: 9780735414518 issn: 0094243X citation: Adil, M. and Zaid, H.M. and Chuan, L.K. and Latiff, N.R.A. (2016) Effect of CMC on the stability of ZnO nanofluid at high temperature and salinity. In: UNSPECIFIED.