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Issue 3, 2004
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Preparation of a visible light-responsive photocatalyst from a complex of Ti4+ with a nitrogen-containing ligand

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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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Publication details

The article was received on 18 Sep 2003, accepted on 21 Nov 2003 and first published on 07 Jan 2004


Article type: Paper
DOI: 10.1039/B311444A
Citation: 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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