Wettability and photocatalysis of CF4 plasma etched titania films of honeycomb structure

被引：6

作者：

Kim, Do-Yeon ^{[1
]}

Park, Jung-Jae ^{[1
]}

Lee, Jong-Gun ^{[1
]}

van Hest, Maikel F. A. M. ^{[2
]}

Yoon, Sam S. ^{[1
]}

机构：

[1] Korea Univ, Sch Mech Engn, Seoul 136713, South Korea

[2] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

CERAMICS INTERNATIONAL | 2013年 / 39卷 / 08期

关键词：

TiO2; Aerosol deposition; CF4; etching; UV-light; Superhydrophilic; TIO2 NANOTUBE ARRAYS; METHYLENE-BLUE; DRINKING-WATER; SURFACES; DEGRADATION; CONVERSION;

D O I：

10.1016/j.ceramint.2013.04.094

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We prepared titania films by aerosol deposition (AD), in which titania powder is supersonically accelerated for deposition onto a substrate. These AD titania films exhibited hydrophilicity and photocatalysis under UV exposure. However, after surface modification by CF4 plasma-etching., the films showed higher hydrophilicity and lower photocatalytic effect. After sufficient modification, they exhibited superhydrophilicity, which was induced by the presence of fluorine. This type of surface modification is useful for promoting hydrophilicity under no UV light exposure. (C) 2013 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

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页码：9737 / 9742

页数：6

相关论文

共 26 条

[1] Aerosol deposition of ceramic thick films at room temperature: Densification mechanism of ceramic layers [J].

Akedo, Jun .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2006, 89 (06) :1834-1839

[2] Wettability of porous surfaces. [J].

Cassie, ABD ;

Baxter, S .

TRANSACTIONS OF THE FARADAY SOCIETY, 1944, 40 :0546-0550

[3] TITANIUM-DIOXIDE PHOTOSENSITIZED REACTIONS STUDIED BY DIFFUSE REFLECTANCE FLASH-PHOTOLYSIS IN AQUEOUS SUSPENSIONS OF TIO2 POWDER [J].

DRAPER, RB ;

FOX, MA .

LANGMUIR, 1990, 6 (08) :1396-1402

[4] Photocatalytic treatment of humic substances in drinking water [J].

Eggins, BR ;

Palmer, FL ;

Byrne, JA .

WATER RESEARCH, 1997, 31 (05) :1223-1226

[5] Characterization of microstructure of nano-TiO2 coating deposited by vacuum cold spraying [J].

Fan, S. -Q. ;

Yang, G. -J. ;

Li, C. -J. ;

Liu, G. -J. ;

Li, C. -X. ;

Zhang, L. -Z. .

JOURNAL OF THERMAL SPRAY TECHNOLOGY, 2006, 15 (04) :513-517

[6] Hydrophobic, Antireflective, Self-Cleaning, and Antifogging Sol-Gel Coatings: An Example of Multifunctional Nanostructured Materials for Photovoltaic Cells [J].

Faustini, Marco ;

Nicole, Lionel ;

Boissiere, Cedric ;

Innocenzi, Plinio ;

Sanchez, Clement ;

Grosso, David .

CHEMISTRY OF MATERIALS, 2010, 22 (15) :4406-4413

[7] PHYSICAL BASIS OF ANALYTICAL ATOMIC ABSORPTION SPECTROMETRY - PERTINENCE OF BEER-LAMBERT LAW [J].

FUWA, K ;

VALLEE, BL .

ANALYTICAL CHEMISTRY, 1963, 35 (08) :942-&

[8] TiO2 photocatalysis:: A historical overview and future prospects [J].

Hashimoto, K ;

Irie, H ;

Fujishima, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (12) :8269-8285

[9] Photocatalytic degradation pathway of methylene blue in water [J].

Houas, A ;

Lachheb, H ;

Ksibi, M ;

Elaloui, E ;

Guillard, C ;

Herrmann, JM .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2001, 31 (02) :145-157

[10] Photocatalytic reactions involving radical chain reactions using microelectrodes [J].

Ikeda, K ;

Sakai, H ;

Baba, R ;

Hashimoto, K ;

Fujishima, A .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (14) :2617-2620