Title: The development of AgCl-H₂Ti₂O₅ nanowires composite as a room temperature sensor for the detection of element mercury

Authors: Mojie Sun; Xiaomeng Liu; Kai Zhou; Zhenxing Fang; Jian Li; Dong Wang

Addresses: Department of Chemical Engineering, Northeast Dianli University, No. 169 Changchun Road, Jilin City 132012, China ' Department of Chemical Engineering, Northeast Dianli University, No. 169 Changchun Road, Jilin City 132012, China ' Department of Chemical Engineering, Northeast Dianli University, No. 169 Changchun Road, Jilin City 132012, China ' State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun City 130012, China ' State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300192, China ' Department of Chemical Engineering, Northeast Dianli University, No. 169 Changchun Road, Jilin City 132012, China

Abstract: A highly sensitive and selective element Hg sensor has been developed by using AgCl-H₂Ti₂O₅ (ATO) nanowires composite as a room temperature sensing material. The AgCl-H₂Ti₂O₅ nanowires composite is prepared by combining hydrothermal and photoreduction chlorination route. The H₂Ti₂O₅ nanowires exhibit a nest meso-architecture network with AgCl nanoparticles attached on the nanowires. The element Hg sensing performance of ATO composite sensor was investigated. The sensor shows good sensitivity, selectivity, fast response and recovery sensing features to large concentrations range of element Hg vapour.

Keywords: mercury sensors; composite nanowires; mercury pollution; emissions monitoring; Hg emissions; mercury emissions; room temperature sensors; mercury detection; nanotechnology; AgCl nanoparticles; silver chloride; anodic titanium oxide; ATO; mercury vapour.

DOI: 10.1504/IJSNET.2015.069588

International Journal of Sensor Networks, 2015 Vol.17 No.4, pp.238 - 242

Received: 18 Oct 2014
Accepted: 22 Oct 2014
Published online: 27 May 2015 *

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