370810 Synthesis of Silver Nanoparticles in Poly(acrylic acid) Networks and Their Catalytic Activity

Monday, November 17, 2014
Galleria Exhibit Hall (Hilton Atlanta)
Jianjia Liu1, Jie Wang1, Xuhong Guo1, Stephen Lincoln2, Liang Yan3 and Duc-Truc Pham3, (1)State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai, China, (2)Chemistry, University of Adelaide, Adelaide, Australia, (3)School of Chemistry and Physics, University of Adelaide, Adelaide, Australia

Silver nanoparticles with narrow size distribution were prepared in poly(acrylic acid) networks with various amount of sodium borohydride (NaBH4). Effect of sodium borohydride amount on the formation of silver nanoparticles was studied in detail. The size, size distribution, and stability of silver nanoparticles were tunable by the molar ratio of NaBH4/AgNO3 when less than 10, while its effect was weakened when it exceeded 10. This phenomenon could be characterized by UV spectrum and TEM. The catalytic activity of silver nanoparticles with various size and size distribution on the reaction of 4-nitrophenol’s reduction was discussed, especially at the appearance of alpha-cyclodextrin.

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