Author(s)

N. Negishi, K. Takeuchi & P. Pichat

Abstract

Preparation of the transparent Ti02 film photocatalyst and its use for the photodegradation of VOCs N. ~ e ~ i s h i ' , K. ~akeuchi' & P. pichat2 '~nstitute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology MIST), Jupan. 2 Inge'nierie et Fonctionnalisation des Surfaces, Centre National de la Recherche Scientzjique (CNRS), France. Abstract A Ti02 transparent thin film photocatalyst was prepared for the photodecomposition of VOCs under photo-irradiation with sunlight. A precursor solution for the transparent TiOz film photocatalysts was prepared using a mixture of a-terpineol and hydroxypropyl cellulose (Mw = 80000). The transparent films were prepared by a dip coating method. The maximum thickness of the obtained transparent film was 4.4 pm. The specific surface area was around 80 m2/g. The crystallinity of Ti02 film was of anatase alone. Acetaldehyde (1000 ppm in air, 50% relative humidity) was photodecomposed by the transparent TiOz fi

Keywords