A Study of Wavelength-Effect on Photocatalytic Degradation of Formaldehyde

doi:10.7517/j.issn.1674-0475.2005.04.253

Abstract

Abstract: The photocatalytic degradation of formaldehyde was studied on the surface of TiO₂ film photocatalyst under the illumination of ultraviolet lamp and black lamp respectively. The results indicated that the conversion of formaldehyde was lower under illumination of ultraviolet lamp than that of black lamp. TiO₂ photocatalysts after photocatalytic reaction were characterized by fourier transform infrared spectroscopy (FT-IR) and differential thermogravimetric (TG-DTA) analysis. The reason of difference of photocatalytic efficiency under illumination of UV lamp and black lamp was discussed.

Key words: TiO₂, formaldehyde, wavelength-effect, photocatalysis

CLC Number:

HUANG Yong, YANG Jian-jun, MAO Li-qun. A Study of Wavelength-Effect on Photocatalytic Degradation of Formaldehyde[J]. Imaging Science and Photochemistry, 2005, 23(4): 253-260.

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