材料科学
核化学
离子液体
傅里叶变换红外光谱
拉曼光谱
纳米颗粒
X射线光电子能谱
光谱学
抗菌活性
牛血清白蛋白
分析化学(期刊)
纳米技术
化学工程
化学
有机化学
色谱法
光学
物理
工程类
生物
量子力学
催化作用
遗传学
细菌
作者
V. Muthulakshmi,Shanmugam Muthusubramanian
标识
DOI:10.1016/j.jece.2020.103992
摘要
Rare earth element ytterbium oxide (Yb2O3) and ionic liquid (IL) added ytterbium oxide (Yb2O3-IL) nanoparticles (NPs) were synthesized using Couroupita guianensis abul leaves extract by hydrothermal method. The synthesized Yb2O3 and Yb2O3-IL NPs are of BCC structure and crystalline size of 40 and 35 nm. Functional group and vibrational mode were analyzed by FTIR and Raman spectroscopy and the resultant Yb-O stretching peak at 618 and 588 cm−1. The optical absorption at 239 and 230 nm for Yb2O3 and Yb2O3-IL NPs were studied by UV–vis spectroscopy. The relative high-intensity emission peaks at 424 (blue) and 583 (yellow) were confirmed by photoluminescence spectroscopy. The particle size of Yb2O3-IL observed in the range of around 15–37 nm was confirmed by DLS method and the results matched with SEM analysis. The Yb, O 1s and C 1s states and the corresponding binding energy (BE) values were confirmed by X-ray photoelectron spectroscopy. The hexagonal, spherical and rectangular shapes were identified by SEM and TEM analyses. Biological activities such as antibacterial against E. coli and S. aureus, anti-cancer against MCF-7 breast cancer cells, anti-inflammatory against bovine serum albumin denaturation with standard diclofenac and anti-oxidant against free radical scavenging assay with Vitamin C were also studied for the synthesized Yb2O3 and Yb2O3-IL NPs.
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