Preparation of super-hydrophilic amorphous titanium dioxide thin film via PECVD process and its application to dehumidifying heat exchangers

Autor:	Jae-Keun Lee, Gyu-rak Kim, Hyun-Woo Jun, Young-Man Jeong, Youngson Choe
Rok vydání:	2009
Předmět:	Materials science Scanning electron microscope General Chemical Engineering Analytical chemistry Chemical vapor deposition Amorphous solid Contact angle chemistry.chemical_compound chemistry Chemical engineering Plasma-enhanced chemical vapor deposition Titanium dioxide Wetting Thin film
Zdroj:	Journal of Industrial and Engineering Chemistry. 15:202-206
ISSN:	1226-086X
DOI:	10.1016/j.jiec.2008.09.013
Popis:	The super-hydrophilic amorphous titanium dioxide (TiO2) thin film was prepared by plasma-enhanced chemical vapor deposition (PECVD) process for an application to dehumidifying finned-tube heat exchangers. The chemical components and surface structure were characterized by X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD) and scanning electron microscope (SEM). The wettability and long-term durability were investigated by measuring the water contact angle and by performing wet/dry cycles. The samples were subjected to 1000 times of wet/dry cycles to establish long-term durability. The water contact angle of the amorphous TiO2 thin film was about 8° at as-deposited film with O2 plasma treatment and was about 15° after 1000 wet/dry cycles. The amorphous TiO2 thin film had excellent wettability and long-term durability under full wetting conditions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::18fc20c84666ae06b4bd9b4b1612091f https://doi.org/10.1016/j.jiec.2008.09.013 Zobrazit plný text záznamu Full Text from ScienceDirect