Potentiality of the green synthesized silver nanoparticles for heavy metal removal using Laurencia papillosa seaweed

IF 2.2 Q1 MARINE & FRESHWATER BIOLOGY Egyptian Journal of Aquatic Research Pub Date : 2023-12-01 DOI:10.1016/j.ejar.2023.10.001

Ahlam S. El Shehawy , Ashraf Elsayed , Omar A. El-Shehaby , Elham M. Ali

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Abstract

In this study, a simple and eco-friendly approach to biosynthesizing silver nanoparticles (AgNPs), mediated by an aqueous extract of Laurencia papillosa, was successfully developed. The formed nanoparticles (NPs) were characterized by UV–visible spectroscopy, X-ray diffraction analysis (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), scanning electron microscopy (SEM), and energy dispersive analysis of X-rays (EDAX). The particles showed a crystalline spherical shape with a size ranging from 6.9 to 15.0 nm. By using a central composite design (CCD) based on response surface methodology (RSM), several experimental parameters such as pH, incubation period, and concentration of algal extract were improved. The optimized AgNPs were used as an adsorbent for iron, zinc, manganese, and copper removal from fish aquaculture effluents. The removal percentage was 97.1%, 43.3%, 5.6%, and 2.4% for Fe, Mn, Zn, and Cu respectively. The results imply that AgNPs have the potential to be used as bioadsorbents for heavy metal removal.

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利用 Laurencia papillosa 海藻去除重金属的绿色合成银纳米粒子的潜力

在本研究中，成功开发了一种简单、环保的生物合成银纳米粒子（AgNPs）的方法，该方法以乳头状月桂属植物的水提取物为媒介。通过紫外可见光谱、X 射线衍射分析（XRD）、透射电子显微镜（TEM）、选区电子衍射（SAED）、扫描电子显微镜（SEM）和 X 射线能量色散分析（EDAX）对形成的纳米粒子（NPs）进行了表征。颗粒呈结晶球形，大小在 6.9 至 15.0 纳米之间。通过使用基于响应面方法（RSM）的中心复合设计（CCD），改进了几个实验参数，如 pH 值、培养期和海藻提取物的浓度。优化后的 AgNPs 被用作吸附剂，用于去除鱼类养殖污水中的铁、锌、锰和铜。铁、锰、锌和铜的去除率分别为 97.1%、43.3%、5.6% 和 2.4%。这些结果表明，AgNPs 具有作为生物吸附剂去除重金属的潜力。

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来源期刊

Egyptian Journal of Aquatic Research MARINE & FRESHWATER BIOLOGY-

CiteScore

6.80

自引率

5.70%

发文量

审稿时长

39 days

期刊介绍： The Egyptian Journal of Aquatic Research is published by the National Institute of Oceanography & Fisheries. The Journal isdevoted to the publication of original papers and reviews in all branches of aquatic sciences (Oceanography, Limnology, Fisheries,Aquaculture and environmental sciences)