Application of ZnO Nanoparticle as Sulphide Gas Sensor Using UV/VIS/NIR-Spectrophotometer

3rd International Conference on Mathematics, Science and Education 2016

数学;自然科学;教育

Juliasih, N.^1 ; Buchari^1 ; Noviandri, I.^1

Department of Chemistry, Bandung Institute of Technology, Indonesia^1

关键词: Annealing temperatures;    Characterization studies;    Chemical liquid deposition;    Diffuse reflectance;    Environmental pollutions;    Nanoparticle sizes;    Reflectance peaks;    Safety aspects;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/824/1/012020/pdf
DOI  :  10.1088/1742-6596/824/1/012020

来源: IOP

【 摘 要 】

The nanoparticle of metal oxides has great unique characteristics that applicable to the wide industrial as sensors and catalysts for reducing environmental pollution. Sulphide gas monitors and detectors are required for assessing safety aspects, due to its toxicity level. A thin film of ZnO as the sulphide gas sensor was synthesised by the simple method of chemical liquid deposition with variation of annealing temperature from 200 °C to 500 °C, and characterised by Scanning Electron Microscope (SEM), X-Ray Diffraction (XRD), and UV/VIS/NIR-Spectrophotometer. Characterization studies showed nanoparticle size from the range 62 - 92 nm of diameters. The application this ZnO thin film to sulfide gas, detected by UV/VIS/NIR Spectrophotometer with diffuse reflectance, showed specific chemical reaction by the shifting of maximum % Reflectance peak. The gas sensing using this method is applicable at room.