N-doped TiO2 from TiCl3 for photodegradation of air pollutants

被引：55

作者：

Bianchi, Claudia L. ^{[1
,2
]}

Cappelletti, Giuseppe ^{[1
,2
]}

Ardizzone, Silvia ^{[1
,2
]}

Gialanella, Stefano ^{[3
]}

Naldoni, Alberto ^{[1
]}

Oliva, Cesare ^{[1
]}

Pirola, Carlo ^{[1
]}

机构：

[1] Univ Milan, Dept Phys Chem & Electrochem, I-20133 Milan, Italy

[2] Consorzio INSTM, I-50121 Florence, Italy

[3] Univ Trento, Dept Mat Engn & Ind Technol, I-38050 Mesiano, TN, Italy

来源：

CATALYSIS TODAY | 2009年 / 144卷 / 1-2期

关键词：

N-doped TiO2; Photocatalytic activity; Visible light; EPR; XPS; TITANIUM-DIOXIDE; PHOTOCATALYTIC ACTIVITY;

D O I：

10.1016/j.cattod.2008.12.019

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The photocatalytic activity of both commercial and homemade N-doped TiO2 samples, prepared at different pH from TiCl3 solutions, was tested for the degradation of toluene in the gas phase by using a solar irradiation source. Highest degradations and corresponding kinetic constants were achieved in the case of N-doped samples prepared at higher pH. Various adsorbed aromatic species (benzoic acid, the major surface product, benzylic alcohol, benzaldehyde) were observed at the surface of the exhaust catalysts by using FTIR-ATR spectroscopy. The trend of the photocatalytic efficiency in the visible region is discussed with respect to structural (XRD), morphological (BET, TEM), surface (XPS) and paramagnetic (EPR) characterization. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：31 / 36

页数：6

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