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Growth mechanism and photocatalytic properties for dye degradation of hydrophobic mesoporous ZnO/SDS films prepared by electrodeposition
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SYSNO ASEP 0322803 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Growth mechanism and photocatalytic properties for dye degradation of hydrophobic mesoporous ZnO/SDS films prepared by electrodeposition Title Přímá elektrodepozice hydrofobních mesoporézních filmů ZnO a jejich fotokatalytické vlastnosti při degradaci barviv Author(s) Pauporté, T. (FR)
Rathouský, Jiří (UFCH-W) RID, ORCIDSource Title Microporous and Mesoporous Materials. - : Elsevier - ISSN 1387-1811
Roč. 117, 1-2 (2009), s. 380-385Number of pages 6 s. Language eng - English Country NL - Netherlands Keywords ZnO ; hydrophobicity ; photodegradation ; sodium dodecylsulfate Subject RIV CF - Physical ; Theoretical Chemistry CEZ AV0Z40400503 - UFCH-W (2005-2011) UT WOS 000262879700051 DOI 10.1016/j.micromeso.2008.07.016 Annotation The growth by electrodeposition of ZnO/SDS hybrid thin films from aqueous mixed solution of zinc chloride and sodium dodecylsulfate (SDS), an anionic surfactant, using molecular oxygen as a precursor, has been studied. Significant morphological changes have been observed with the deposition time. At low electrodeposition time the layer is composed of flake-shaped aggregated grains whereas for a time longer than 10-15 min an inner layer composed of aggregated particles appears below the flake-type one. The flakes have a lamellar structure oriented parallel to the substrate. Krypton adsorption experiments show that the mesoporosity of the films is due to pores larger than 8 nm and probably arises from the nanoparticulate phase. The as-deposited films are hydrophobic with contact angles ranging between 110 degrees and 130 degrees. The hydrophobic character of these mesoporous ZnO films is found to substantially improve the efficiency of ZnO films for methylene blue photodegradation,... Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2009
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