陕西科技大学学报（自然科学版）2017，Vol.35Issue(1)：124-128,138,6.
绿茶提取液纳米Ag的制备及表征
Preparation mechanism and characterization of monodisperse silver nanoparticles synthesized by green tea leaf extract
摘要
Abstract
In this proj ect,green tea extract was used to synthesize AgNPs.UV-Vis was em-ployed to detect and track the reduction of Ag+ and the forming process of AgNPs.The syn-thesize AgNPs with desirable physical and biological properties was characterized using TEM and XRD.FTIR spectroscopy was used to analysis to determine capping of biomolecule on the AgNPs surface of plant extract.Reduction properties of green tea extract were analyzed to study the mechanism of redox reaction.Antibacterial activity of the AgNPs was deter-mined.The results showed that the biosynthesis method of AgNPs is easy and simple.The size of AgNPs between 10~15 nm and it takes spherical shapes and good crystallinity,and has strong antibacterial activity against gram positive bacteria and gram negative bacteria. Antioxidant experiment results showed that green tea extract has strong reduction capacity, able to reduct Ag+ into Ag easily,and the biological macromolecules of the extract have sta-bilizing agent properties.关键词
生物合成法/纳米Ag粒子/绿茶提取液/抑菌性能表征/抗氧化Key words
biosynthesis/silver nanoparticles/green tea leaf extract/antibacterial active/an-tioxidant分类
通用工业技术引用本文复制引用
杨辉,任雁宇..绿茶提取液纳米Ag的制备及表征[J].陕西科技大学学报（自然科学版）,2017,35(1):124-128,138,6.基金项目
陕西科技大学学术带头人团队计划项目 （）
