Photocatalytic water splitting over iron oxide nanoparticles intercalated in HTiNb(Ta)O layered compounds

Autor:	Hyun Gyu Kim, Jae Sung Lee, Sang Won Bae, Sang Min Ji, Vangala R. Reddy, Jum Suk Jang
Rok vydání:	2005
Předmět:	Aqueous solution Hydrogen Inorganic chemistry Iron oxide chemistry.chemical_element Photochemistry Catalysis XANES chemistry.chemical_compound chemistry X-ray photoelectron spectroscopy Photocatalysis Physical and Theoretical Chemistry Photocatalytic water splitting Stoichiometry
Zdroj:	Journal of Catalysis. 231:213-222
ISSN:	0021-9517
DOI:	10.1016/j.jcat.2005.01.026
Popis:	Nanosized iron oxide particles were intercalated into the interlayer of layered compounds HTiNb(Ta)O5 by a successive ion-exchange reaction. The electronic and local coordination structures of iron oxide in the interlayer space of these proton-containing compounds were investigated by X-ray absorption near edge structure (XANES) and X-ray photoelectron spectroscopy (XPS). The intercalated nanosized iron oxide was Fe2O3, which exhibited a high electron deficiency. Unlike in a previous report, Fe2O3-intercalated layered compounds did not produce hydrogen from an aqueous methanol solution in a photocatalytic manner under visible light. Instead, the material produced a stoichiometric mixture of hydrogen and oxygen photocatalytically under UV irradiation and produced oxygen from an aqueous AgNO3 solution photocatalytically under visible light.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::47e3f00638d861cc0de77edce9087d0c https://doi.org/10.1016/j.jcat.2005.01.026 Zobrazit plný text záznamu Full Text from ScienceDirect