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Photocatalytic properties of layered hydrous titanium oxide/CdSZnS nanocomposites incorporating CdSZnS into the interlayer
Author(s) -
Sato Tsugio,
Masaki Katsuhiko,
Sato Kenichi,
Fujishiro Yoshinobu,
Okuwaki Akitsugu
Publication year - 1996
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/(sici)1097-4660(199612)67:4<339::aid-jctb585>3.0.co;2-1
Subject(s) - nanocomposite , materials science , photocatalysis , chemical engineering , oxide , hydrogen production , doping , hydrogen , titanium oxide , titanium , composite material , chemistry , catalysis , metallurgy , optoelectronics , organic chemistry , engineering
H 2 Ti 4 O 9 /Cd 0·8 Zn 0·2 S nanocomposites incorporating Cd 0·8 Zn 0·2 S particles, less than 1 nm in thickness, were fabricated by the chemical reaction between a Cd 2+ –Zn 2+ mixture and H 2 S in the interlayer of H 2 Ti 4 O 9 . H 2 Ti 4 O 9 /Cd 0·8 Zn 0·2 S nanocomposites were capable of efficient hydrogen evolution following irradiation with visible light in the presence of Na 2 S as a sacrificial donor. The hydrogen production activity of the H 2 Ti 4 O 9 /Cd 0·8 Zn 0·2 S nanocomposite was superior to those of unsupported Cd 0·8 Zn 0·2 S and the mixture of H 2 Ti 4 O 9 and Cd 0·8 Zn 0·2 S. The hydrogen production was enhanced by doping Pt together with Cd 0·8 Zn 0·2 S in the interlayer, but was depressed by depositing Pt on the outer surface of the H 2 Ti 4 O 9 /Cd 0·8 Zn 0·2 S nanocomposite.