Photodeposition of Prussian Blue Films on TiO(2): Additive Effect of Methanol and Influence of the TiO(2) Crystal Form

Autor:	Satoru Tsuji, Seishiro Ito, Hiroaki Tada
Rok vydání:	2001
Předmět:	Anatase Prussian blue Reaction mechanism Aqueous solution Inorganic chemistry Crystal structure Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials chemistry.chemical_compound Colloid and Surface Chemistry chemistry Transition metal Rutile Photocatalysis
Zdroj:	Journal of colloid and interface science. 239(1)
ISSN:	1095-7103
Popis:	The coupling of TiO(2) and transition metal complexes is attempted with the aim of higher functionalization of the TiO(2) photocatalyst. UV irradiation (lambda(ex)300 nm) of a TiO(2) suspension containing equimolar aqueous solutions of FeCl(3) and K(3)[Fe(CN)(6)] forms uniform thin films of "water-insoluble Prussian blue" (PB, Fe(4)(3+) [Fe(II)(CN)(6)](3)) on the surface of TiO(2) particles. The PB photodeposition is enhanced significantly by the addition of a small amount of CH(3)OH in both the rutile and anatase TiO(2) systems. The activity of anatase TiO(2) is greater than that of rutile in the presence of CH(3)OH (2.46 M) by a factor of 1.6+/-0.2, whereas the activities are comparable in the absence of CH(3)OH. These results are discussed on the basis of a proposed reaction mechanism. Copyright 2001 Academic Press.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bbef1c651a986a612e4b6ed6e0b6177c https://pubmed.ncbi.nlm.nih.gov/11397064 Zobrazit plný text záznamu Full Text from ScienceDirect