Photocatalytic removal of nitrogen oxides via titanium dioxide |
| |
Authors: | F?L?Toma G?Bertrand Email author" target="_blank">D?KleinEmail author C?Coddet |
| |
Institution: | (1) Laboratoire d Etudes et de Recherches sur les Matériaux les Procédés et les Surfaces (LERMPS), Université de Technologie de Belfort-Montbéliard (UTBM), Site de Sévenans, 90010 Belfort Cedex, France |
| |
Abstract: | We studied the removal of nitrogen oxides pollutants via TiO2 Degussa P25 powder by photocatalysis. Parameters such as mass of catalyst, geometric irradiated surface, catalyst morphology, and thermal treatment were tested to explain the photocatalytic concentration decrease of nitrogen oxides. According to our working conditions, the conversion rates increased until an optimal value of the TiO2 weight, 35% of NO concentration and around 20% of NOx, was decomposed by the photocatalysis. The NOx removal increased proportionally with the irradiated geometric surface. The structural transformation of anatase to rutile performed by thermal treatment involved the decrease of the photocatalytic activity. |
| |
Keywords: | Photocatalysis Titanium dioxide Nitrogen oxides Photocatalytic efficiency |
本文献已被 SpringerLink 等数据库收录! |
|