Chemistry Department, Shahid Bahonar University of Kerman, Kerman, 76169, Iran.
Environ Sci Pollut Res Int. 2020 Jun;27(17):21455-21467. doi: 10.1007/s11356-020-08598-3. Epub 2020 Apr 10.
In this investigation, Ag@AgCl nanoparticles were synthesized by a green and inexpensive method using Elaeagnus angustifolia leaves, as a reducing and stabilizing agent without using any toxic solvent, external halide source, harsh chemicals, or capping agents. In this protocol, the nanophotocatalyst was synthesized via immobilization of Ag@AgCl NPs on the surface of biowaste Elaeagnus angustifolia seed (EAS) as a green support, which prevents the agglomeration Ag@AgCl NPs and improves the catalytic activity. The biosynthesized nanophotocatalyst were characterized by UV-Vis spectroscopy, Fourier transform-infrared spectroscopy (FT-IR), X-ray diffraction (XRD), field emission scanning electron microscopy (FE SEM), energy dispersive X-ray spectroscopy (EDS), and transform electron microscopy (TEM) and inductively couple plasma mass spectrometry (ICP). In order to investigate the photocatalytic activity of the biosynthesized nanophotocatalyst, it was used in the degradation of methylene blue (MB) under sunlight. The results showed that nanophotocatalyst had an excellent photo activity without any agglomeration. In addition, the nanophotocatalyst can be easily be recycled and reused several times without losing its activity. Graphical abstract.
在这项研究中，Ag@AgCl 纳米粒子通过一种绿色且廉价的方法合成，使用了沙枣叶作为还原剂和稳定剂，而不使用任何有毒溶剂、外部卤源、苛刻的化学物质或封端剂。在该方案中，通过将 Ag@AgCl NPs 固定在生物质废物沙枣种子（EAS）表面上作为绿色载体来合成纳米光催化剂，这可以防止 Ag@AgCl NPs 团聚并提高催化活性。通过紫外可见光谱、傅里叶变换红外光谱（FT-IR）、X 射线衍射（XRD）、场发射扫描电子显微镜（FE SEM）、能谱（EDS）、透射电子显微镜（TEM）和电感耦合等离子体质谱（ICP）对生物合成的纳米光催化剂进行了表征。为了研究生物合成的纳米光催化剂的光催化活性，它被用于在阳光下降解亚甲基蓝（MB）。结果表明，纳米光催化剂具有优异的光活性，没有任何团聚。此外，纳米光催化剂可以很容易地回收和重复使用几次而不会失去其活性。
