Please use this identifier to cite or link to this item: https://doi.org/10.1016/j.snb.2009.09.049
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dc.titleDetecting hydrogen sulfide by using transparent polymer with embedded CdSe/CdS quantum dots
dc.contributor.authorXu, H.
dc.contributor.authorWu, J.
dc.contributor.authorChen, C.-H.
dc.contributor.authorZhang, L.
dc.contributor.authorYang, K.-L.
dc.date.accessioned2014-10-09T06:45:54Z
dc.date.available2014-10-09T06:45:54Z
dc.date.issued2010-01-07
dc.identifier.citationXu, H., Wu, J., Chen, C.-H., Zhang, L., Yang, K.-L. (2010-01-07). Detecting hydrogen sulfide by using transparent polymer with embedded CdSe/CdS quantum dots. Sensors and Actuators, B: Chemical 143 (2) : 535-538. ScholarBank@NUS Repository. https://doi.org/10.1016/j.snb.2009.09.049
dc.identifier.issn09254005
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/88751
dc.description.abstractHydrogen sulfide (H2S) is a hazardous vapor commonly found in oil fields and industrial processes. In this paper, we first reported the fluorescence quenching of CdSe/CdS quantum dots (QDs) by hydrogen sulfide in dichloromethane. This response is highly specific because no response to other volatile organic vapors can be observed. Second, we embedded QDs in films of poly(dimethylsiloxane) (PDMS), a transparent and gas-permeable polymer, for detecting low level of hydrogen sulfide. After exposing the film to 10 ppm of hydrogen sulfide, the film loses its fluorescence within 1 min. However, the fluorescence recovers completely after the film is left in the open air for 2 h. Compared with other types of hydrogen sulfide sensors, the film sensor with embedded QDs is more portable, easy-to-operate and has low-cost. © 2009 Elsevier B.V. All rights reserved.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1016/j.snb.2009.09.049
dc.sourceScopus
dc.subjectCdSe/CdS quantum dots
dc.subjectFluorescent sensor
dc.subjectHydrogen sulfide
dc.subjectPoly(dimethylsiloxane)
dc.subjectPolymer
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1016/j.snb.2009.09.049
dc.description.sourcetitleSensors and Actuators, B: Chemical
dc.description.volume143
dc.description.issue2
dc.description.page535-538
dc.description.codenSABCE
dc.identifier.isiut000274774100012
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