Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China; State Key Laboratory of Chemical Resource, Engineering, Beijing University ofChemical Technology, Beijing 100029, China.
Beijing Advanced Innovation Centre for Soft Matter Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, PR China.
J Photochem Photobiol B. 2020 Apr;205:111821. doi: 10.1016/j.jphotobiol.2020.111821. Epub 2020 Feb 19.
Iron oxide nanoparticles (FeONPs) are an interested and attractive area of research as they have numerous effective environmental and biomedical applications. Herein we have reported a simple and eco-benign synthesis FeONPs using Tamarix aphylla extract. The extract of the Tamarix aphylla acts both as a reducing and capping agent which leads to the fast and successful eco-benign synthesis of FeONPs.UV/Vis spectroscopy, XRD, EDX, SEM and TEM techniques were used to characterize and explore different features of FeONPs. UV/Vis studies showed asharppeak at 390 nm due to surface plasmon resonance absorption of FeONPs. XRD studies indicated that FeONPs were crystalline in nature. Structural features, elemental composition and geometry of FeONPswere confirmed by SEM, EDX and TEM. The as synthesized FeONPs showed efficient efficacy to degrade 100% of Methylene blue (MB) dye by 4 mg/25 ml MB and revealed 90% scavenging of the more stable DPPH free radical(1 mg/ml). Furthermore, FeONPs showed excellent antimicrobial activity against pathogenic multidrug resistant bacterial strains. The results of the present study explored the potential reducing, capping property of Tamarix aphylla extract, photocatalytic and biomedical applications of eco-benignly synthesized FeONPs which could be an alternative material for effective remediation of lethal organic pollutants and microbes.
氧化铁纳米粒子（FeONPs）是一个备受关注且极具吸引力的研究领域，因为它们在环境和生物医学领域有众多有效的应用。在此，我们报道了一种使用柽柳提取物简单且环保的合成 FeONPs 的方法。柽柳提取物既作为还原剂又作为封端剂，从而快速、成功地实现了 FeONPs 的环保合成。我们采用紫外-可见分光光度法、X 射线衍射（XRD）、能谱（EDX）、扫描电子显微镜（SEM）和透射电子显微镜（TEM）等技术对 FeONPs 的不同特性进行了表征和研究。紫外-可见光谱研究表明，由于 FeONPs 的表面等离子体共振吸收，在 390nm 处出现了一个尖锐的峰。XRD 研究表明，FeONPs 具有晶态结构。SEM、EDX 和 TEM 证实了 FeONPs 的结构特征、元素组成和几何形状。所合成的 FeONPs 对亚甲基蓝（MB）染料的降解效率高达 100%（4mg/25ml MB），并对更稳定的 DPPH 自由基（1mg/ml）有 90%的清除率。此外，FeONPs 对多种耐药性病原菌具有优异的抗菌活性。本研究结果表明，柽柳提取物具有潜在的还原、封端性能，所合成的环保型 FeONPs 具有光催化和生物医学应用潜力，可作为有效修复致命有机污染物和微生物的替代材料。
