%0 Journal Article
%T Manganese Oxide-Surface Modified Titanium (IV) Dioxide as Environmental Catalyst
%A Qiliang Jin
%A Hiroshi Arimoto
%A Musashi Fujishima
%A Hiroaki Tada
%J Catalysts
%D 2013
%I MDPI AG
%R 10.3390/catal3020444
%X The purpose of this study is to present an ¡°environmental catalyst¡± possessing both thermocatalytic activity and visible-light activity for the decomposition of organic pollutants. Molecule-sized MnO x clusters are highly dispersed on the surface of TiO 2 (anatase/rutile = 4/1 w/ w, P-25, Degussa) by the chemisorption-calcination cycle technique using Mn(acac) 3 complex as a precursor (MnO x/TiO 2). The thermo- and photo-catalytic activities of MnO x/TiO 2 were studied for the degradation of 2-naphthol used as a model water pollutant. In contrast to the FeO x/TiO 2 system, MnO x/TiO 2 exhibits high thermocatalytic activity exceeding those of bulk ¦Â-£¿¦Â-MnO 2 and Mn 2O 3. Also, visible-light activity is induced by the surface modification of TiO 2 with MnO x clusters, whereas its UV-light activity decreases.
%K titanium dioxide
%K manganese oxides
%K surface modification
%K thermocatalytic activity
%K photocatalytic activity
%K environmental catalyst
%U http://www.mdpi.com/2073-4344/3/2/444