Dyes decolorization using silver nanoparticles supported on nanometric diamond as highly efficient photocatalyst under natural Sunlight irradiation

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• 作者：Premkumar Manickam-Periyaraman^a ; Sergio Manuel Espinosa^a ; Juan C. Espinosa^a ; Sergio Navaló ; n^a ; Sivanesan Subramanian^b ; Mercedes Á ; lvaro^a ; Hermenegildo Garc&iacute ; a^a ; ^c ; ^{hgarcia@qim.upv.es}
• 关键词：Photocatalysis ; Synthetic dyes decolorization ; Plasmonic Ag nanoparticles ; Diamond nanoparticles ; Natural Sunlight irradiation
• 刊名：Journal of Environmental Chemical Engineering
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：4
• 期：4
• 页码：4485-4493
• 全文大小：826 K
• 卷排序：4

文摘

Silver nanoparticles supported on diamond nanoparticles (Ag/D) act as Fenton catalyst. Sunlight increases the efficiency of the process by exciting the Ag surface plasmon band. Ag/D is more efficient than Ag NPs are supported on active carbon, graphite or TiO2. Ag/D is reusable five times without decay in initial rate or final activity. The mechanism involves formation of hydroxyl radicals and reactive oxygen species.