Sensitive Room Temperature Photoluminescence-Based Sensing of H2S with Novel CuO-ZnO Nanorods.

Autor:	Liu X; Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology , Harbin 150080, China., Du B; Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology , Harbin 150080, China., Sun Y; Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology , Harbin 150080, China., Yu M; State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology , Harbin 150001, China., Yin Y; Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology , Harbin 150080, China., Tang W; Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology , Harbin 150080, China., Chen C; State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology , Harbin 150001, China., Sun L; State Key Laboratory of Urban Water Resource and Environment, School of Chemical Engineering and Technology, Harbin Institute of Technology , Harbin 150001, China., Yang B; Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology , Harbin 150080, China., Cao W; Condensed Matter Science and Technology Institute, School of Science, Harbin Institute of Technology , Harbin 150080, China.; Department of Mathematics and Materials Research Institute, The Pennsylvania State University , University Park, Pennsylvania 16802, United States., Ashfold MN; School of Chemistry, University of Bristol , Bristol BS8 1TS, U.K.
Jazyk:	angličtina
Zdroj:	ACS applied materials & interfaces [ACS Appl Mater Interfaces] 2016 Jun 29; Vol. 8 (25), pp. 16379-85. Date of Electronic Publication: 2016 Jun 15.
DOI:	10.1021/acsami.6b02455
Abstrakt:	Novel CuO nanoparticle-capped ZnO nanorods have been produced using a pulsed laser deposition (PLD) method. These nanorods are shown to grow by a CuO-nanoparticle-assisted vapor-solid-solid (V-S-S) mechanism. The photoluminescence (PL) accompanying ultraviolet illumination of these capped nanorod samples shows large variations upon exposure to trace quantities of H2S gas. The present data suggest that both the Cu-doped ZnO stem and the CuO capping nanoparticle contribute to optical H2S sensing with these CuO-ZnO nanorods. This study represents the first demonstration of PL-based H2S gas sensing, at room temperature, with sub-ppm sensitivity. It also opens the way to producing CuO-ZnO nanorods by a V-S-S mechanism using gas-phase methods other than PLD.
Databáze:	MEDLINE
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