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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received June 13, 2007
Accepted September 17, 2007

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Application of physical vapor deposition process to modify activated carbon fibers for ozone reduction

Yu-Chih Lin^† Chung-Liang Chang Tser-Sheng Lin¹ Hsunling Bai² Ming-Gu Yan² Fu-Hsiang Ko³ Chia-Tien Wu³ Cheng-Hsiung Huang

Department of Environmental Engineering and Health, Yuanpei University, Hsinchu City, 300, Taiwan ¹Department of Safety, Health and Environmental Engineering, National United University, MiaoLi, Taiwan ²Institute of Environmental Engineering, National Chiao Tung University, Hsinchu City, Taiwan ³Institute of nanotechnology, National Chiao Tung University Hsinchu City, Taiwan

Korean Journal of Chemical Engineering, May 2008, 25(3), 446-450(5), 10.1007/s11814-008-0076-4

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Abstract

This study utilized the activated carbon fiber (ACF) modified with metal catalyst via physical vapor deposition (PVD) process (ACF/PVD) to diminish ozone. Furthermore, the ozone removal efficiency of ACF/PVD was compared with that of original ACF and ACF modified with metal catalyst via impregnation process (ACF/impregnation). In addition to the kinds of coated metal and the inlet ozone concentrations, the effects of the coating thickness and the reaction temperature on ACF/PVD for ozone removal were also examined. The results indicate that the ozone removal efficiency of ACF/PVD is better than that of original ACF and ACF/impregnation. The ozone removal efficiency of different metal-coated ACF/PVD in the superior order is gold (Au), and manganese (Mn). The increase of Au-coated thickness (3 nm to 80 nm) on ACF/PVD will enhance the ozone removal. However, when the Mn-coated thickness on ACF/PVD is larger than 15 nm, the ozone removal efficiency displays a declining trend. Furthermore, a higher reaction temperature will result in a better ozone removal of ACF/PVD and the original ACF.

Keywords

Ozone Activated Carbon Physical Vapor Deposition Adsorption

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