Modelling and experimental study of the NOx photocatalytic degradation employing concrete pavement with titanium dioxide

被引：73

作者：

Ballari, M. M. ^{[1
]}

Hunger, M. ^{[2
]}

Husken, G. ^{[1
]}

Brouwers, H. J. H. ^{[1
]}

机构：

[1] Eindhoven Univ Technol, Dept Architecture Bldg & Planning, Unit Bldg Phys & Syst, NL-5600 MB Eindhoven, Netherlands

[2] GCC Technol & Proc SA, CH-1400 Yverdon, Switzerland

来源：

CATALYSIS TODAY | 2010年 / 151卷 / 1-2期

关键词：

Heterogeneous photocatalysis; Nitrogen oxides; Air purification; Concrete roads; NO and NO2 kinetic model; External influences; OXIDATION; OXIDE;

D O I：

10.1016/j.cattod.2010.03.042

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The photocatalytic degradation of nitrogen oxides (NOx) employing concrete paving stones with titanium dioxide is studied experimentally and theoretically. Experiments were carried out in a laboratory photoreactor designed according to the standard ISO 22197-1 (2007) [7] to assess photocatalytic materials. A kinetic model is proposed to describe the photocatalytic reaction of NO and NO2 as well as the influence of several parameters that can affect the performance of the stones, such as NO inlet concentration, reactor height, flow rate, relative humidity and irradiance. The proposed kinetic model is in good agreement with the experimental results, for instance the prediction of the NO and NO2 concentration at the reactor outlet. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：71 / 76

页数：6

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