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最低运行分辨率IV设计用于优化生物去除Fe2+使用Enteromorpha intestinalis水性提取物及其提取物涂层的银纳米粒子

Doaa G El-Hosari¹, Fatma A Mokhtar^2,3, Hussein A Khalaf⁴

¹Department of Pharmacognosy, Faculty of Pharmacy, Helwan University, Ein Helwan, Cairo 11795, Egypt.

Plants (Basel, Switzerland)

|January 11, 2025

概括

这项研究探讨使用Enteromorpha intestinalis (EiE) 的水性提取物及其银纳米粒子去除铁. 生物吸收剂显示有效的铁吸附,受pH的影响,并遵循特定的动力和异热模型.

科学领域:

环境科学环境科学
材料科学材料科学材料科学
纳米技术纳米技术

背景情况:

生物吸收剂为从水性环境中去除重金属提供了一个有希望的方法.
水中的铁污染对环境和健康构成重大风险.
开发高效和可持续的生物吸收剂对于水资源整治至关重要.

研究的目的:

为了准备和表征一种水性提取物Enteromorpha intestinalis (EiE) 和它的银纳米颗粒作为生物吸收物去除铁.
研究这些新型生物吸收剂的吸附特性并优化其去除效率.
阐明吸附机制和铁去除所涉及的动力学.

主要方法:

使用FTIR,XRD,UV-Vis,TEM,GC-MS和zeta潜力进行生物吸收剂的表征.
批量吸附实验用于评估pH,接触时间,初始度,剂量和温度等因素.
使用最小运行分辨率IV (MRR-IV) 设计进行优化.
使用朗格穆尔和弗洛因利希等热量和伪第一/二阶动力模型进行吸附机制分析.

主要成果:

生物吸收剂,EiE及其银纳米粒子,已成功准备和表征.
GC-MS确定了有机酸,脂质,酒精和烯等活性成分,FTIR证实了这一点.
TEM显示纳米粒子大小在5-44nm之间,XRD证实了高晶度.
吸附过程依赖于pH值,在pH值5.0时进行最佳的去除.
吸附遵循弗洛伊德利希等温模型和伪第一阶动力学,表明多层吸附过程.

结论:

肠虫 (Enteromorpha intestinalis) (EiE) 的水性提取物及其银纳米颗粒是有效的生物吸收剂,可以去除铁.
在MRR-IV设计中,确定了影响生物吸收效率的关键因素.
该研究提供了对吸附机制和动力学的见解,支持在水处理中使用这些生物吸收剂.

关键词:

形肠道虫 (英语:Enteromorpha intestinalis) 是一种在肠道中生长的动物.铁2+ 铁2+ 铁2+ 铁2+生物转化生物转化绿色合成是一种绿色合成.银纳米颗粒的使用方法

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