Improved Activity of Hydrothermally-prepared WO3 Photocatalysts by Sodium Salt Additives

Improved Activity of Hydrothermally-prepared WO3 Photocatalysts by Sodium Salt Additives

Addition of sodium salts in hydrothermal synthesis was revealed to significantly influence the morphology and particle size of WO3 particles due to oriented growth. The plate-like shaped WO3 particles prepared with appropriate amounts of alkaline salts such as NaHCO3 and NaOH exhibited much higher a...

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Veröffentlicht in:Chemistry letters 2018, Vol.47 (8), p.985-988
Hauptverfasser: Ogawa, Kanta, Tomita, Osamu, Takagi, Kohei, Nakada, Akinobu, Higashi, Masanobu, Ryu, Abe
Format: Artikel
Sprache:eng ; jpn
Schlagworte:
Additives
Morphology
Sodium bicarbonate
Sodium hydroxide
Sodium salts
Tungsten oxides
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Zusammenfassung:Addition of sodium salts in hydrothermal synthesis was revealed to significantly influence the morphology and particle size of WO3 particles due to oriented growth. The plate-like shaped WO3 particles prepared with appropriate amounts of alkaline salts such as NaHCO3 and NaOH exhibited much higher activity for O2 evolution in the presence of Fe3+ electron acceptor, compared to that prepared without any additives and a highly-active commercial one.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.180393