Preparation of visible light sensitive nano-sized N-TiO_2 photocatalysts and their photocatalytic activity under visible light

Authors

YOUNG-GU KANG
KWANG-HYEOK LEE
HYUN-SIK HAHM

DOI

10.3906/kim-1407-49

Abstract

This study aimed to develop a photocatalyst that responds to visible light. For the preparation of visible light sensitive photocatalysts, N was doped into TiO_2 (N-TiO_2). To inhibit the recombination of excited electrons and holes, transition metals (M = Pt, Cu, Fe, Cr) were loaded on the N-TiO_2. N-TiO_2 nanotubes were also synthesized by a hydrothermal treatment of the prepared N-TiO_2 in a strong basic environment. The prepared photocatalysts were characterized by XRD, FESEM, HRTEM, XPS, and UV/VIS spectrophotometer, and their photocatalytic activity was tested by the photodecomposition of liquid-phase methylene blue and gas-phase acetone.

Keywords

Visible light sensitive TiO_2, N-doping, transition metal loading, N-TiO_2 nanotubes

First Page

159

Last Page

168

Recommended Citation

KANG, YOUNG-GU; LEE, KWANG-HYEOK; and HAHM, HYUN-SIK (2015) "Preparation of visible light sensitive nano-sized N-TiO_2 photocatalysts and their photocatalytic activity under visible light," Turkish Journal of Chemistry: Vol. 39: No. 1, Article 15. https://doi.org/10.3906/kim-1407-49
Available at: https://journals.tubitak.gov.tr/chem/vol39/iss1/15