Show simple item record

dc.contributor.authorAl-Gebory, Layth Wadhah Ismael
dc.contributor.authorMengüç, Mustafa Pınar
dc.date.accessioned2019-02-11T11:31:28Z
dc.date.available2019-02-11T11:31:28Z
dc.date.issued2018-11
dc.identifier.issn0022-4073en_US
dc.identifier.urihttp://hdl.handle.net/10679/6165
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S0022407318302231
dc.description.abstractNanoparticle suspensions (NPSs) are used extensively to improve the thermal efficiency of different engineering systems because of their unique thermo-optical properties. NPSs have also been uses in coatings as they improve or alter the appearance of objects, where radiative and optical properties play a significant role. In all these applications, pH of a suspension has a significant impact on the particle agglomeration behaviour, and consequently on optical properties and then on radiative heat transfer. In the present study, the effect of pH on the agglomeration of TiO2 NPSs is investigated. For this purpose, both the experimental and theoretical studies were carried out. In the experiments, the particle size distribution and the average (effective) particle size for the NPSs in different conditions (the pH and particle volume fraction) were measured using the dynamic light scattering (DLS) technique. The effects of different particle agglomerates under different pH values on the dependent/independent scattering are explored and the corresponding regimes are demarked for different conditions. The effects of particle agglomeration, particle size distribution and their contributions to the scattering coefficients are obtained using the UV–Vis-NIR spectroscopy technique. The results show that pH may have significant effect on the optical properties involving NPSs. Adjusting the pH value based on the isoelectric point of the nanoparticle is an efficient method when specific radiative properties are required for specific applications. Different regimes of the dependent/independent scattering can be obtained by changing the pH of a particular nanoparticle suspension.en_US
dc.description.sponsorshipCenter for Energy, Environment, and Economy (CEEE) at Ozyegin University
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.ispartofJournal of Quantitative Spectroscopy and Radiative Transfer
dc.rightsrestrictedAccess
dc.titleThe effect of pH on particle agglomeration and optical properties of nanoparticle suspensionsen_US
dc.typeArticleen_US
dc.peerreviewedyesen_US
dc.publicationstatusPublisheden_US
dc.contributor.departmentÖzyeğin University
dc.contributor.authorID(ORCID 0000-0001-5483-587X & YÖK ID 141825) Mengüç, Pınar
dc.contributor.ozuauthorMengüç, Mustafa Pınar
dc.identifier.volume219en_US
dc.identifier.startpage46en_US
dc.identifier.endpage60en_US
dc.identifier.wosWOS:000447576000006
dc.identifier.doi10.1016/j.jqsrt.2018.07.020en_US
dc.subject.keywordspH valueen_US
dc.subject.keywordsParticle agglomerationen_US
dc.subject.keywordsNanoparticle suspensionsen_US
dc.subject.keywordsOptical/radiative propertiesen_US
dc.identifier.scopusSCOPUS:2-s2.0-85051382028
dc.contributor.ozugradstudentAl-Gebory, Layth Wadhah Ismael
dc.contributor.authorMale2
dc.relation.publicationcategoryArticle - International Refereed Journal - Institutional Academic Staff and PhD Student


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record


Share this page