Photocatalytic Degradation of Humic Acid with Metal-Doped TiO2 under Near-Visible Irradiation

Ji Yang So; Dong Seok Rhee

doi:10.4028/www.scientific.net/KEM.723.589

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 723Photocatalytic Degradation of Humic Acid with...

Photocatalytic Degradation of Humic Acid with Metal-Doped TiO₂ under Near-Visible Irradiation

Abstract:

The improvement of photocatalytic activity of TiO₂ has been explored. TiO₂ has been doped with some transition metal elements for new photocatalytic materials. They were prepared using nitrates of Fe, Cu and Zn. Their photocatalytic activities were investigated by conducting a semi-batch experiment. The degradation of aqueous humic acid was performed under near-visible irradiation. For examining the photocatalytic characteristics of the new materials, the dissolved organic carbon and the UV254 absorption of humic acid were analyzed. The new metal-doped photocatalysts showed higher photoactivities than the synthesized pure TiO₂. And photodegradation result of humic acid by the new metal-doped material was even better than by the commercial Degussa P-25 TiO₂ at wavelengths of 315 nm - 400 nm.

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Proceedings of International Conference on Material Science and Engineering 2016

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Periodical:

Key Engineering Materials (Volume 723)

Pages:

589-593

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.723.589

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Online since:

December 2016

Authors:

Ji Yang So, Dong Seok Rhee*

Keywords:

Humic Acid, Metal-Doped TiO₂, Photocatalyst, Photocatalytic, Titanium Oxide

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