Warning: fopen(/home/virtual/kwjs/journal/upload/ip_log/ip_log_2024-04.txt): failed to open stream: Permission denied in /home/virtual/lib/view_data.php on line 88 Warning: fwrite() expects parameter 1 to be resource, boolean given in /home/virtual/lib/view_data.php on line 89 Photoelectrical Conductivity and Photodegradation Properties of TiO₂ and Ag Sputtered TiO₂ Plasma Spraying Coatings

Journal of KWJS 2009;27(2):38-43.
Published online May 18, 2009.
TiO₂ 및 Ag 스퍼터링-TiO₂ 플라즈마 용사피막의 광전류 및 광분해 특성
, ,
 
Photoelectrical Conductivity and Photodegradation Properties of TiO₂ and Ag Sputtered TiO₂ Plasma Spraying Coatings
Tae-Gu Kang, Yong-Ho Jang, Kyeung-Chae Park
Abstract
  In this study, we investigated photocatalytic ability of plasma sprayed TiO₂ and Ag sputterig TiO₂(Ag-TiO₂) coatings. A sputtering processes were adopted to coat the surface of TiO₂ with Ag(99.99%). Ag was sputtered at 10mA, 450V for 1~11 seconds. TiO₂ AND Ag-TiO₂ coatings were heat-treated at 250, 300, 350, 400℃ for 0~24seconds. Photoelectrical conductivity was measured by four-point probe, and photodegradation2-5) was calculated by UV-V is spectrometer. Microstructure observation of TiO₂ and Ag-TiO₂ coatings were investigated by SEM. Crystal structure of TiO₂ and Ag-TiO₂ coatings were investigated by XRD. Qualitative analyses of TiO₂ and Ag-TiO₂ coatings were conducted by EDX. When TiO₂ coatings were heat-teated at 350℃ for 30 sec, photoelectrical conductivity and photodegradation were best. And in XRD analysis result, (101)/(110) relative intensity ratio of TiO₂(rutile) was comparably changed with photoelectrical conductivity. When Ag-TiO₂ coatings were heat-treated at 350℃ for 30 [sec] after sputtering Ag for 7 sec, Photoelectrical conductivity and photodegradation are best. Surface of coatings in such condition has very small and uniform Ag particles
Key Words: Photoelectrical conductivity, Photodegradation, TiO₂, Plasma spraying coating
TOOLS
METRICS Graph View
  • 1,454 View
  • 0 Download
Related articles


ABOUT
BROWSE ARTICLES
ARTICLE CATEGORY 
FOR CONTRIBUTORS
Editorial Office
#304, San-Jeong Building, 23, Gukhoe-daero 66-gil, Yeongdeungpo-gu, Seoul 07237, Korea
Tel: +82-2-538-6511    Fax: +82-2-538-6510    E-mail: koweld@kwjs.or.kr                

Copyright © 2024 by The Korean Welding and Joining Society.

Developed in M2PI