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Conference Paper: Piezoelectric quartz crystal (PQC) with photochemically deposited nano-sized Ag particles for determining cyanide at trace levels in water

TitlePiezoelectric quartz crystal (PQC) with photochemically deposited nano-sized Ag particles for determining cyanide at trace levels in water
Authors
KeywordsCyanide
Photo-deposition
Piezoelectric quartz crystal
Titanium dioxide
Issue Date2004
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/snb
Citation
The 10th International Meeting on Chemical Sensors (IMCS-10), Tsukuba, Japan, 11-14 July 2004, In Sensors and actuators. B, Chemical, 2004, v. 108 n. 1-2, p. 925-932 How to Cite?
AbstractA sensitive and cost-effective cyanide sensor has been developed based on piezoelectric quartz crystal (PQC) for determining cyanide at trace levels in water. The sensing layers were fabricated by depositing photochemically generated nano-sized silver particles on titanium dioxide film at the electrode surface of PQC. The freshly produced metallic Ag interacts strongly with cyanide, leading to improved sensor performance (3 times higher sensitivity and 12 times lower detection limit as compared to the bulk Ag-coated PQC). The linear working range was over three orders of concentration from 0.1-10 μmol/L. Under the optimized conditions for photochemical deposition of nano-sized Ag with controlled TiO2 film thickness and desired silver particles in nano-sized range, factors affecting its analytical application such as background buffer, solution pH and potential interferents were investigated. Satisfactory recovery at 98.8% and good repeatability (R.S.D. for n = 3) at 3.19% were obtained in spiked cyanide concentration from 0.013-0.233 mg/L. The procedure was shown able to provide a reliable method for quantitative determination of cyanide at more than 30 times lower than the World Health Organization (WHO) guideline value for drinking water. © 2005 Elsevier B.V. All rights reserved.
DescriptionThese journal issues entitled: Proceedings of the Tenth International Meeting on Chemical Sensors IMCS - 10 2004
abstract no. 2P061
Persistent Identifierhttp://hdl.handle.net/10722/69348
ISSN
2015 Impact Factor: 4.758
2015 SCImago Journal Rankings: 1.305
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorSun, H-
dc.contributor.authorSi, S-
dc.contributor.authorZhang, Y-
dc.contributor.authorZhu, D-
dc.contributor.authorFung, YS-
dc.date.accessioned2010-09-06T06:12:50Z-
dc.date.available2010-09-06T06:12:50Z-
dc.date.issued2004-
dc.identifier.citationThe 10th International Meeting on Chemical Sensors (IMCS-10), Tsukuba, Japan, 11-14 July 2004, In Sensors and actuators. B, Chemical, 2004, v. 108 n. 1-2, p. 925-932-
dc.identifier.issn0925-4005en_HK
dc.identifier.urihttp://hdl.handle.net/10722/69348-
dc.descriptionThese journal issues entitled: Proceedings of the Tenth International Meeting on Chemical Sensors IMCS - 10 2004-
dc.descriptionabstract no. 2P061-
dc.description.abstractA sensitive and cost-effective cyanide sensor has been developed based on piezoelectric quartz crystal (PQC) for determining cyanide at trace levels in water. The sensing layers were fabricated by depositing photochemically generated nano-sized silver particles on titanium dioxide film at the electrode surface of PQC. The freshly produced metallic Ag interacts strongly with cyanide, leading to improved sensor performance (3 times higher sensitivity and 12 times lower detection limit as compared to the bulk Ag-coated PQC). The linear working range was over three orders of concentration from 0.1-10 μmol/L. Under the optimized conditions for photochemical deposition of nano-sized Ag with controlled TiO2 film thickness and desired silver particles in nano-sized range, factors affecting its analytical application such as background buffer, solution pH and potential interferents were investigated. Satisfactory recovery at 98.8% and good repeatability (R.S.D. for n = 3) at 3.19% were obtained in spiked cyanide concentration from 0.013-0.233 mg/L. The procedure was shown able to provide a reliable method for quantitative determination of cyanide at more than 30 times lower than the World Health Organization (WHO) guideline value for drinking water. © 2005 Elsevier B.V. All rights reserved.en_HK
dc.languageeng-
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/snben_HK
dc.relation.ispartofSensors and actuators. B, Chemical-
dc.subjectCyanideen_HK
dc.subjectPhoto-depositionen_HK
dc.subjectPiezoelectric quartz crystalen_HK
dc.subjectTitanium dioxideen_HK
dc.titlePiezoelectric quartz crystal (PQC) with photochemically deposited nano-sized Ag particles for determining cyanide at trace levels in water-
dc.typeConference_Paper-
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0924-4247&volume=108&spage=925&epage=932&date=2005&atitle=Piezoelectric+quartz+crystal+(PQC)+with+photochemically+deposited+nano-sized+Ag+particles+for+determining+cyanide+at+trace+levels+in+wateren_HK
dc.identifier.emailSi, S: sishihui@yahoo.com.cn-
dc.identifier.emailZhang, Y: yyzhng91@hotmail.com-
dc.identifier.emailZhu, D: drzhu@HKUCC.hku.hk-
dc.identifier.emailFung, YS: ysfung@hku.hk-
dc.identifier.authorityFung, YS=rp00697en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.snb.2004.12.120en_HK
dc.identifier.scopuseid_2-s2.0-19744372989en_HK
dc.identifier.hkuros104142-
dc.identifier.hkuros111379-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-19744372989&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume108-
dc.identifier.issue1-2-
dc.identifier.spage925-
dc.identifier.epage932-
dc.identifier.isiWOS:000230330300153-
dc.publisher.placeSwitzerlanden_HK
dc.identifier.scopusauthoridSun, H=7404827538en_HK
dc.identifier.scopusauthoridZhang, YY=7601310637en_HK
dc.identifier.scopusauthoridSi, SH=7006049232en_HK
dc.identifier.scopusauthoridZhu, DR=7403599128en_HK
dc.identifier.scopusauthoridFung, YS=13309754700en_HK
dc.customcontrol.immutablesml 150925 - merged-

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