Green synthesis of silver nanoparticles using wolfberry fruits extract and their photocatalytic performance
Spherical Ag nanoparticles(NPs)was synthesized using the Chinese wolfberry fruits extract(WFE)as surfactant and reductant.The hydrolysis time and the reaction time were systematically investigated.The whole synthesis process must be kept boiling in order to enhance the reducing ability of WFE and decrease the reaction time.Under the optimized hydrolysis time of 10 min,the reaction time just need 5 min.Ag NPs were characterized by means of UV-vis,EDX,TEM,HR-TEM,and SAED.It was found that Ag NPs exhibited the surface plasmon resonance wavelength of 408 nm,a small average size of 12.1 nm,and the face-centered cubic structure.Obtained Ag NPs were used as photocatalyst for the reduction of 4-nitrophenol and revealed a high photocatalytic activity and stability.The rate constant was 0.043 min-1,which suggested the reduction of 4-nitrophenol was fast.Clearly,Ag NPs synthesized in the totally green method have a potential application in the field of the wastewater treatment.
L Sun P C Lv Y C Yin H N Li F Wang
School of Energy and Power Engineering,University of Shanghai for Science and Technology,Jun Gong Road 516,Shanghai 200093,China
国际会议
三亚
英文
1-7
2017-11-18（万方平台首次上网日期，不代表论文的发表时间）