TiO₂ nanotube layers doped with Ag nanoparticles used as formaldehyde emission sensor

Authors

Ryan Lapuz ⋅ PH Forest Products Research and Development Institute, College, Laguna
Roland Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

Formaldehyde gas sensor using TiO₂ doped with Ag nanoparticle was fabricated by anodizing Ti film sputtered on a silicon substrate. Ag nanoparticles were loaded on the TiO₂ nanotubes via UV decomposition. The TiO2 nanotubes has an average diameter of 192.25nm and tube length of 882.69nm. The pores average diameter was 55.55nm, 78.71nm, 92.11nm, and 75.27nm for the control, 30min UV, 60min UV, and 120min UV exposure time respectively. The number of pores increased from 62.00 to a maximum of 119.67 for 60min UV exposure time. TiO₂-Ag film exhibit a 53.12% sensitivity at room temperature.

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Issue

2011: Proceedings of the 29th Samahang Pisika ng Pilipinas National Physics Congress

Article ID

SPP2011-PA-46

Section

Poster Session PA

Published

2011-10-24

How to Cite

[1]

R Lapuz and R Sarmago, TiO2 nanotube layers doped with Ag nanoparticles used as formaldehyde emission sensor, Proceedings of the Samahang Pisika ng Pilipinas 29, SPP2011-PA-46 (2011). URL: https://proceedings.spp-online.org/article/view/SPP2011-PA-46.