화학공학소재연구정보센터
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals, Vol.341, 1017-1022, 2000
Synthesis and photocatalytic property of hectorite/(Pt,TiO2) and H4Nb6O17/(Pt,TiO2) nanocomposites
TiO2 and Pt have been intercalated in hectorite and H4Nb6O17. The height of TiO2 and Pt pillars was less than 0.8 nm and the band gap energy of TiO2 pillars was ca. 3.3 eV. Both hectorite/TiO2 and H4Nb6O17/(Pt,TiO2) were capable of hydrogen evolution following irradiation from a high pressure mercury arc (lambda > 290 nm) in the presence of methanol as a sacrificial hole acceptor and the hydrogen evolution was enhanced by co-incorporation of Pt, although hectorite and hectorite/Pt did nor show photocatalytic activity. Incorporation of Pr or Pt and TiO2 in the interlayer of H4Nb6 O-17 has resulted in enhanced photo evolution of hydrogen, however, TiO2 alone in the interlayer of H4Nb6O17 showed adverse photocatalytic activity.