Mohammed Azhin H, Mhammedsharif Renjbar M, Jalil Parwin J, Mhammedsharif Sida M, Mohammed Ahmed S
Physics Department, College of Education, University of Sulaimani, Kurdistan Region, Iraq.
Scientific Research Centre, Soran University, Kurdistan Region, Iraq.
Heliyon. 2024 Nov 28;10(24):e40747. doi: 10.1016/j.heliyon.2024.e40747. eCollection 2024 Dec 30.
This study compares magnetite (Fe3O4) nanoparticles synthesized using Aspergillus elegans extract versus commercially available magnetite nanoparticles, focusing on their efficacy in dye degradation. The biosynthesis of Fe3O4 nanoparticles using fungal extracts offers a sustainable and eco-friendly alternative to conventional chemical methods. The nanoparticles were characterized using various techniques, including UV-Vis spectroscopy, XRD, FTIR, SEM, TEM, DLS, zeta potential, and VSM analysis, to assess their structural, morphological, and magnetic properties. Results showed that fungus-mediated Fe3O4 nanoparticles were smaller, with an average size of 19.2 nm, and exhibited better crystallinity, surface functionalization, and colloidal stability than their commercial counterparts, which had an average size of 60 nm. Additionally, the fungal nanoparticles displayed superior magnetic properties with a saturation magnetization of 50 emu/g compared to 36 emu/g for commercial Fe3O4. The dye degradation potential of the nanoparticles was tested using methyl violet, methyl orange, and rose bengal dyes. Fungus-mediated Fe3O4 nanoparticles demonstrated higher dye removal efficiency than commercial Fe3O4, indicating enhanced catalytic activity due to their smaller size and larger surface area. This study highlights the potential of myco-synthesized Fe3O4 nanoparticles as effective agents for environmental remediation, particularly in removing of hazardous synthetic dyes from wastewater.
本研究比较了使用秀丽曲霉提取物合成的磁铁矿（Fe3O4）纳米颗粒与市售磁铁矿纳米颗粒，重点关注它们在染料降解方面的功效。利用真菌提取物生物合成Fe3O4纳米颗粒为传统化学方法提供了一种可持续且环保的替代方案。使用多种技术对纳米颗粒进行了表征，包括紫外可见光谱、X射线衍射、傅里叶变换红外光谱、扫描电子显微镜、透射电子显微镜、动态光散射、zeta电位和振动样品磁强计分析，以评估其结构、形态和磁性。结果表明，真菌介导合成的Fe3O4纳米颗粒尺寸更小，平均尺寸为19.2纳米，与平均尺寸为60纳米的市售纳米颗粒相比，具有更好的结晶度、表面功能化和胶体稳定性。此外，真菌纳米颗粒表现出优异的磁性，饱和磁化强度为50emu/g，而市售Fe3O4为36emu/g。使用甲基紫、甲基橙和孟加拉玫瑰红染料测试了纳米颗粒的染料降解潜力。真菌介导合成的Fe3O4纳米颗粒显示出比市售Fe3O4更高的染料去除效率，表明由于其较小的尺寸和较大的表面积，催化活性增强。本研究突出了真菌合成的Fe3O4纳米颗粒作为环境修复有效剂的潜力，特别是在从废水中去除有害合成染料方面。
