NGHIÊN CỨU TỔNG HỢP HẠT NANO BẠC SỬ DỤNG HỖN HỢP CHIẾT XUẤT HOA ĐẬU BIẾC (Clitoria ternatea) VÀ LÁ CẨM TÍM (Gynura aurantiaca) BẰNG PHƯƠNG PHÁP XANH

Tóm tắt

In this study, the green synthesis of silver nanoparticles (AgNP) using mixed aqueous extract of Clitoria
ternatea flowers and Peristrophe roxburghiana leaves as reducing, capping, and stabilizing agents was
implemented. The parameters such as the ratio of volume between the two extracts solution, reaction
temperature, and reaction time, influenced with the formation process and size of silver nanoparticles. The
ultraviolet-visible spectroscopy (UV-Vis) analysis showed a maximum absorption peak such as a
characteristic surface plasmon resonance (SPR) peak of AgNP in the 438 – 447 nm range and diameters
from 20 to 22 nm. X-ray diffraction (XRD) analysis confirmed the crystalline nature of the face-centered
cubic (FCC) structure of AgNPs. Fourier transforms infrared (FTIR) analysis revealed the functional
groups in the solution participated in the process of nanoparticles.