A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO4 modified ZnO nanoparticles

Xinghua Chang; Mi Peng; Junfeng Yang; Teng Wang; Yu Liu; Jie Zheng; Xingguo Li

doi:10.1039/c5ra13459e

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

Xinghua Chang, Mi Peng, Junfeng Yang, Teng Wang, Yu Liu, Jie Zheng, Xingguo Li

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

A light activated miniature formaldehyde sensor working at room temperature is fabricated by CdSO₄ modified ZnO nanoparticles. The CdSO₄ is deposited on the surface of the ZnO nanoparticles as a separated phase rather than doping into the lattice of ZnO. The Cd²⁺ and SO₄^2- on the surface play a synergic effect for the high sensitivity to formaldehyde. The sensor shows high sensitivity to formaldehyde, with detection limit lower than 1 ppm while shows no response to ethanol and very weak response to acetone. With engineering efforts, a highly compact prototype formaldehyde sensor is obtained, which is very convenient for portable formaldehyde specific detection.

Original language	English
Pages (from-to)	75098-75104
Number of pages	7
Journal	RSC Advances
Volume	5
Issue number	92
DOIs	https://doi.org/10.1039/c5ra13459e
State	Published - 25 Aug 2015
Externally published	Yes

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title = "A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO4 modified ZnO nanoparticles",

abstract = "A light activated miniature formaldehyde sensor working at room temperature is fabricated by CdSO4 modified ZnO nanoparticles. The CdSO4 is deposited on the surface of the ZnO nanoparticles as a separated phase rather than doping into the lattice of ZnO. The Cd2+ and SO42- on the surface play a synergic effect for the high sensitivity to formaldehyde. The sensor shows high sensitivity to formaldehyde, with detection limit lower than 1 ppm while shows no response to ethanol and very weak response to acetone. With engineering efforts, a highly compact prototype formaldehyde sensor is obtained, which is very convenient for portable formaldehyde specific detection.",

author = "Xinghua Chang and Mi Peng and Junfeng Yang and Teng Wang and Yu Liu and Jie Zheng and Xingguo Li",

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AU - Chang, Xinghua

AU - Peng, Mi

AU - Yang, Junfeng

AU - Wang, Teng

AU - Liu, Yu

AU - Zheng, Jie

AU - Li, Xingguo

PY - 2015/8/25

Y1 - 2015/8/25

N2 - A light activated miniature formaldehyde sensor working at room temperature is fabricated by CdSO4 modified ZnO nanoparticles. The CdSO4 is deposited on the surface of the ZnO nanoparticles as a separated phase rather than doping into the lattice of ZnO. The Cd2+ and SO42- on the surface play a synergic effect for the high sensitivity to formaldehyde. The sensor shows high sensitivity to formaldehyde, with detection limit lower than 1 ppm while shows no response to ethanol and very weak response to acetone. With engineering efforts, a highly compact prototype formaldehyde sensor is obtained, which is very convenient for portable formaldehyde specific detection.

AB - A light activated miniature formaldehyde sensor working at room temperature is fabricated by CdSO4 modified ZnO nanoparticles. The CdSO4 is deposited on the surface of the ZnO nanoparticles as a separated phase rather than doping into the lattice of ZnO. The Cd2+ and SO42- on the surface play a synergic effect for the high sensitivity to formaldehyde. The sensor shows high sensitivity to formaldehyde, with detection limit lower than 1 ppm while shows no response to ethanol and very weak response to acetone. With engineering efforts, a highly compact prototype formaldehyde sensor is obtained, which is very convenient for portable formaldehyde specific detection.

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JO - RSC Advances

JF - RSC Advances

IS - 92

ER -

A miniature room temperature formaldehyde sensor with high sensitivity and selectivity using CdSO₄ modified ZnO nanoparticles

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