TY - JOUR
T1 - Fabrication of an oxysulfide of bismuth Bi2O2S and its photocatalytic activity in a Bi2O2S/In 2O3 composite
AU - Pacquette, Adele L.
AU - Hagiwara, Hidehisa
AU - Ishihara, Tatsumi
AU - Gewirth, Andrew A.
N1 - Funding Information:
We gratefully acknowledge support from the International Institute for Carbon Neutral Energy Research (WPI-I2CNER), sponsored by the World Premier International Research Center Initiative (WPI) , MEXT, Japan . XRD, SEM, and diffuse reflectance UV–visible spectroscopy were carried out in part in the Frederick Seitz Materials Research Laboratory Central Facilities, University of Illinois.
PY - 2014/3/1
Y1 - 2014/3/1
N2 - Oxide-chalcogenide semiconductors are proposed in order to attain a smaller band gap and improve efficiencies in comparison to oxides for light induced total water splitting. Dibismuthoxysulfide (Bi2O2S) was synthesized under relatively mild hydrothermal conditions. The synthesized compound was characterized by XRD, SEM and UV-vis DRS techniques. The band gap of 1.5 eV measured is smaller than 2.8 eV of bismuth oxide (Bi2O 3). Photoelectrochemical studies showed that it is possible to utilize Bi2O2S and the Bi2O2S/ In2O3 composite as n-type semiconductors. Dye modified Bi2O2S/In2O3 showed promise for the catalysis of water splitting.
AB - Oxide-chalcogenide semiconductors are proposed in order to attain a smaller band gap and improve efficiencies in comparison to oxides for light induced total water splitting. Dibismuthoxysulfide (Bi2O2S) was synthesized under relatively mild hydrothermal conditions. The synthesized compound was characterized by XRD, SEM and UV-vis DRS techniques. The band gap of 1.5 eV measured is smaller than 2.8 eV of bismuth oxide (Bi2O 3). Photoelectrochemical studies showed that it is possible to utilize Bi2O2S and the Bi2O2S/ In2O3 composite as n-type semiconductors. Dye modified Bi2O2S/In2O3 showed promise for the catalysis of water splitting.
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U2 - 10.1016/j.jphotochem.2013.12.007
DO - 10.1016/j.jphotochem.2013.12.007
M3 - Article
AN - SCOPUS:84891811951
VL - 277
SP - 27
EP - 36
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
SN - 1010-6030
ER -