Detection of Formaldehyde Vapor Using Glass Substrate Coated With Zinc Oxide Nanorods

Haziezol Helmi Mohd Yusof, .- and Mohd Hafiz Jali, .- and Md Ashadi Md Johari, .- and Kaharudin Dimyati, .- and Sulaiman Wadi Harun, .- and M. Khasanah, .- and M. Yasin, .- (2019) Detection of Formaldehyde Vapor Using Glass Substrate Coated With Zinc Oxide Nanorods. In: IEEE Photonics Journal. IEEE, pp. 1-9.

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A glass substrate coated with ZnO nanorods via a hydrothermal method for formaldehyde vapor sensing is reported. The proposed sensor device was characterized against formaldehyde vapor concentrations varying from 1% to 5% with a reference point as 0% (pure water) at room temperature. A significant sensing response was observed where the output voltage reduced by 0.0856 V via scattering effect by ZnO nanorods upon exposure to the maximum tested concentration (5%). The sensitivity and linearity of the sensing response were recorded to be approximate values of -0.0168 V/% and 98.06% correspondingly. The sensor device was found to have good measurement stability in measuring as low as 1% of concentration for a prolonged time of 600 s. This proposed sensor has potential applications in monitoring air pollution caused not only by formaldehyde vapor but also by other harmful and toxic vapors or gases.

Item Type: Book Section
Uncontrolled Keywords: Formaldehyde, formalin, vapor, zinc oxide, nanorods, glass substrate.
Subjects: Q Science
Q Science > Q Science (General)
Q Science > QD Chemistry
Divisions: 08. Fakultas Sains dan Teknologi > Kimia
Haziezol Helmi Mohd Yusof, .-UNSPECIFIED
Mohd Hafiz Jali, .-UNSPECIFIED
Md Ashadi Md Johari, .-UNSPECIFIED
Kaharudin Dimyati, .-UNSPECIFIED
Sulaiman Wadi Harun, .-UNSPECIFIED
M. Khasanah, .-UNSPECIFIED
Depositing User: Mr Vega Andi Budiman
Date Deposited: 03 Jun 2023 07:06
Last Modified: 03 Jun 2023 07:06
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