Issue 3, 2004
From the journal:

Journal of Materials Chemistry

Preparation of a visible light-responsive photocatalyst from a complex of Ti4+ with a nitrogen-containing ligand

Taizo Sano,*a   Nobuaki Negishi,a   Kazuhide Koike,a   Koji Takeuchia  and  Sadao Matsuzawaa  

* Corresponding authors

a Photoenergy Application Group, Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST), AIST Tsukuba west, 16-1 Onogawa, Tsukuba, Ibaraki, Japan
E-mail: sano-t@aist.go.jp

Abstract

An anatase type of TiO2 photocatalyst containing N atoms was synthesized by a new technique using a complex of Ti4+ with a nitrogen-containing ligand as a precursor. The TiO2-like photocatalyst prepared by calcination of a Ti4+–bipyridine complex exhibited high photocatalytic activity for NOx removal under both ultraviolet and visible-light (λ < 645 nm) illumination. The doping of the N atom into the anatase lattice, which is expected from UV-VIS spectroscopy, XRD, and XPS, is inferred as an important factor for the visible light absorption and NOx removal activity under a wide range of visible light illumination. The bipyridine ligand acted as the source of N and C atoms and additionally inhibited sintering of the photocatalyst during heat treatment.

Graphical abstract: Preparation of a visible light-responsive photocatalyst from a complex of Ti4+ with a nitrogen-containing ligand

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Article information

DOI
https://doi.org/10.1039/B311444A
Article type
Paper
Submitted
18 Sep 2003
Accepted
21 Nov 2003
First published
07 Jan 2004

J. Mater. Chem., 2004,14, 380-384

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Preparation of a visible light-responsive photocatalyst from a complex of Ti4+ with a nitrogen-containing ligand

T. Sano, N. Negishi, K. Koike, K. Takeuchi and S. Matsuzawa, J. Mater. Chem., 2004, 14, 380 DOI: 10.1039/B311444A

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