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dc.contributor.authorTanvir, Fouzia
dc.contributor.authorYaqub, Atif
dc.contributor.authorTanvir, Shazia
dc.contributor.authorAn, Ran
dc.contributor.authorAnderson, William A. 19:58:02 (GMT) 19:58:02 (GMT)
dc.description.abstractThe emission of mercury (II) from coal combustion and other industrial processes may have impacts on water resources, and the detection with sensitive but rapid testing methods is desirable for environmental screening. Towards this end, silver nanoprisms were chemically synthesized resulting in a blue reagent solution that transitioned towards red and yellow solutions when exposed to Hg2+ ions at concentrations from 0.5 to 100 µM. A galvanic reduction of Hg2+ onto the surfaces is apparently responsible for a change in nanoprism shape towards spherical nanoparticles, leading to the change in solution color. There were no interferences by other tested mono- and divalent metal cations in solution and pH had minimal influence in the range of 6.5 to 9.8. The silver nanoprism reagent provided a detection limit of approximately 1.5 µM (300 µg/L) for mercury (II), which compared reasonably well with other reported nanoparticle-based techniques. Further optimization may reduce this detection limit, but matrix effects in realistic water samples require further investigation and amelioration.en
dc.description.sponsorshipOntario Centers of Excellence Voucher for Innovation and Productivity||Higher Education Commissionen
dc.publisherMultidisciplinary Digital Publishing Instituteen
dc.rightsAttribution 4.0 International*
dc.subjectspectral blue shiften
dc.subjectwater qualityen
dc.titleColorimetric Detection of Mercury Ions in Water with Capped Silver Nanoprismsen
dcterms.bibliographicCitationTanvir, F., Yaqub, A., Tanvir, S., An, R., & Anderson, W. A. (2019). Colorimetric Detection of Mercury Ions in Water with Capped Silver Nanoprisms. Materials, 12(9), 1533.
uws.contributor.affiliation1Faculty of Engineeringen
uws.contributor.affiliation2Chemical Engineeringen

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