铜纳米颗粒的生物合成方法,物理化学表征,cefixime废水处理和抗菌活动
Esraa Hassan1, Ahmed A Gahlan2, Gamal A Gouda2
1Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt. isramuhammad4221@azhar.edu.eg.
BMC chemistry
|July 9, 2023
概括
绿色合成铜纳米颗粒 (Cu NPs) 使用菜种子提取物导致有效的Cefixime从废水中去除. 这些CuNP还表现出强大的抗菌活性对各种细菌.
科学领域:
- 绿色化学和纳米技术
- 材料科学与工程 材料科学与工程
背景情况:
- 开发用于纳米粒子合成的可持续方法至关重要.
- 由于Cefixime等持久污染物,制药废水带来了环境挑战.
- 铜纳米颗粒 (CuNP) 在环境修复和抗菌应用方面显示出前景.
研究的目的:
- 为了实现铜纳米颗粒 (Cu NPs) 的绿色合成,使用昆种子提取物.
- 评估生物合成的Cu NPs在从制药废水中去除Cefixime (Xim) 的有效性.
- 为了研究合成的Cu NPs的抗菌特性.
主要方法:
- 绿色合成Cu NPs使用昆种子提取物.
- 使用XRD,FT-IR,UV-Vis,SEM,TEM和EDX进行Cu NP的表征.
- 吸附性研究以确定Xim去除的最佳条件.
- 用于吸附分析的兰格穆尔等温和和伪二次运动模型.
- 评估抗菌活性对抗格兰氏阴性和格兰氏阳性细菌.
主要成果:
- 纯晶面中心立方CuNP合成的纯晶晶体,平均晶体大小为8.41nm.
- 紫外线-Vis光谱显示能量带隙为3.47 eV,证实了半导体的特性.
- 在pH4,30 mgCu NPs剂量,100 mg/L的Xim度和313 K.K.的条件下达到最佳的Xim去除.
- 最大吸附能力为122.9mg/g (Langmuir模型),具有伪二阶动力学.
- 生物合成的Cu NPs表现出显著的抗菌活性.
结论:
- 奎诺亚种子提取物是Cu NP合成的有效绿色减少和封闭剂.
- 生物合成的CuNP是Cefixime从废水中去除的高效纳米吸收剂.
- 合成的CuNP具有有前途的抗菌特性,在环境修复和医疗保健中具有双重应用.
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