生态友好型染料降解:用于去除甲基绿的先进钆镍共掺杂 Ba-hexaferrite 光催化剂

IF 2.2 4区 化学 Q2 Engineering
Saima Rasheed, Muhammad Jamshaid, Shahid Iqbal, M. Ajmal Ali, Mohammad Abul Farah, Saltanat Aghayeva, Qasim Raza, Amir Nazir, Sana Ijaz
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引用次数: 0

摘要

本研究的重点是通过乳液法合成和表征钆和镍共掺杂的 Ba1-xGdxFe12-yNiyO19 纳米粒子(NPs)。利用 X 射线衍射(XRD)分析、傅立叶变换红外(FTIR)分析、拉曼光谱、扫描电子显微镜(SEM)和振动样品磁力计(VSM)分析对制备的 NPs 进行了表征。通过在四面体位点和八面体位点共同掺杂钆和镍,成功合成了具有六边形几何形状的单相钡六铁氧体。扫描电镜分析表明,掺杂后的管状颗粒呈圆形球状,表面积增大,粒径从 25 纳米增大到 35 纳米。磁性研究表明,掺杂后磁化率增加(45.7-70.2 emu/g)。掺杂材料表现出优异的光催化活性,在 60 分钟的日光照射下,甲基绿(MG)染料的降解率接近 90.2%,而同类材料的降解率仅为 32.26%。可重复使用性测试表明,该催化剂具有极佳的稳定性和可回收性,5 次运行后降解活性仅下降 1%。结果表明,掺钆和掺镍的 Ba1-xGdxFe12-yNiyO19 NPs 具有更高的光催化活性、更大的磁化率、更大的暴露表面积和良好的可重复使用性,因此适合于潜在的应用领域。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Eco-friendly dye degradation: advanced Gd-Ni co-doped Ba-hexaferrite photocatalyst for methyl green removal

Eco-friendly dye degradation: advanced Gd-Ni co-doped Ba-hexaferrite photocatalyst for methyl green removal

The current study focuses on synthesizing and characterizing the Gd and Ni co-doped Ba1-xGdxFe12-yNiyO19 nanoparticles (NPs) via emulsion method. The as-fabricated NPs were characterized using X-ray diffraction (XRD) analysis , Fourier transform infrared (FTIR) analysis, Raman spectroscopy, Scanning electron microscopy (SEM), and vibrating sample magnetometer (VSM) analysis. The synthesis of single-phase Ba-hexaferrites with hexagonal geometry was successfully formed, with co-doping of Gd at tetrahedral and Ni at octahedral sites. SEM analysis revealed tubular particles with rounded spherical geometry, with an increased surface area increase in particle size from 25 to 35 nm upon doping. The magnetic investigation showed increased magnetization (45.7–70.2 emu/g) with co-doping. The doped materials showed excellent photocatalytic activities, degrading almost 90.2% of methyl green (MG) dye in 60 min of sunlight illumination in comparison with 32.26% of their counterpart. The reusability test showed excellent stability and recoverability, with only 1% loss in degradation activity after 5 runs. The results suggest that Gd- and Ni-doped Ba1-xGdxFe12-yNiyO19 NPs have superior photocatalytic activities, more magnetization, an exposed surface area, and excellent reusability, making them suitable for potential applications.

Graphical abstract

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来源期刊
Chemical Papers
Chemical Papers Chemical Engineering-General Chemical Engineering
CiteScore
3.30
自引率
4.50%
发文量
590
期刊介绍: Chemical Papers is a peer-reviewed, international journal devoted to basic and applied chemical research. It has a broad scope covering the chemical sciences, but favors interdisciplinary research and studies that bring chemistry together with other disciplines.
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