Promoting Photocatalytic Performance of ZnO Particles by Photochemically Reducing Ag+ on the Particle Surfaces
學年 103
學期 1
出版（發表）日期 2015-01-01
作品名稱 Promoting Photocatalytic Performance of ZnO Particles by Photochemically Reducing Ag+ on the Particle Surfaces
作品名稱（其他語言）
著者 余宣賦; 錢東緯
單位 淡江大學化學工程與材料工程學系
出版者 New York: Taylor & Francis Inc.
著錄名稱、卷期、頁數 Particulate Science and Technology: An International Journal 33(2), pp.197-203
摘要 Dispersive Ag nanoparticles were formed on the surface of crystalline ZnO particles, using a photochemical reduction technique, to produce the Ag/ZnO with high photocatalytic performance. The prepared Ag/ZnO particles, as well as the ZnO particles without Ag attachments, were characterized using x-ray diffractometer, transmission electron microscope, and surface area analyzer. The abilities of the ZnO and the Ag/ZnO particles to photocatalytically decompose methylene blue under 365-nm ultraviolet light irradiation were evaluated by determining the corresponding specific reaction rate constant, k′MB,m (based on the mass of the photocatalyst used). While the ZnO crystalline particles (k′MB,m > 0.43 m3/(kg min)) already possessed better photocatalytic performance than the commercial photocatalyst P25 (k′MB,m = 0.39 m3/(kg min)), the Ag/ZnO particles exhibited much better photocatalytic performance than the ZnO particles. The highest k′MB,m for the Ag/ZnO particles was 1.93 m3/(kg min), which was about five times that of the P25.
關鍵字 Ag deposition; photocatalysis; photochemical reduction; polyol method; zinc oxide
語言 en_US
ISSN 0272-6351
期刊性質 國外
收錄於 SCI EI
產學合作
通訊作者 Yu, Hsuan-Fu
審稿制度 是
國別 USA
公開徵稿
出版型式 ,電子版,紙本
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