Silver Nanoparticle Supported On Halloysite Nanotubes Catalyzed Reduction Of 4-nitrophenol (4-np)

摘要

The silver nanoparticles with about 10nm diameter were immobilized onto the halloysite nanotubes (HNTs) via the in situ reduction of AgNO_3 by polyol process. The silver nanoparticles supported halloysite nanotubes (Ag/HNTs), with Ag content of about 11%, were used for the catalyzed reduction of 4-nitrophenol (4-NP) with NaBH_4 in alkaline aqueous solutions. The effect of the reduction of 4-NP catalyzed by the catalysts in the presence of variable concentration NaBH_4 was investigated. It was found that the reduction rate increased with the increasing of the amounts of NaBH_4. And the larger amounts of NaBH_4 reduced the induction time.