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负载于钴铁氧体纳米颗粒上的银作为一种可重复使用的多功能催化剂，用于非辐射条件下的水处理应用。

Silver decorated on cobalt ferrite nanoparticles as a reusable multifunctional catalyst for water treatment applications in non-radiation conditions.

作者信息

Ngoc Hoa Le Thi, An Vu Nang, Tra My Vo Huynh, Thu Giang Pham Thi, Top Le Khac, Chi Nhan Ha Thuc, Thang Phan Bach, Thanh Van Tran Thi, Van Hieu Le

机构信息

Faculty of Materials Science and Technology, University of Science, VNU-HCM 700000 Vietnam

Vietnam National University Ho Chi Minh City 700000 Vietnam.

出版信息

RSC Adv. 2023 Aug 16;13(35):24554-24564. doi: 10.1039/d3ra02950f. eCollection 2023 Aug 11.

DOI:10.1039/d3ra02950f
PMID:37593663
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10427894/
Abstract

In this investigation, cobalt ferrite nanoparticles (CFO NPs) were synthesized using a hydrothermal method. Then, silver nanoparticles (Ag NPs) were decorated on CFO NPs to form Ag/CFO NPs using jasmine extract as a reducing agent of Ag ions. The properties of Ag/CFO NPs were characterized by X-ray powder diffraction, field-emission scanning electron microscopy, energy-dispersive X-ray spectroscopy, Fourier-transform infrared spectroscopy, vibrating sample magnetometry, and catalytic tests in non-radiation conditions. The catalytic results indicated that the Ag/CFO NPs could activate peroxymonosulfate to generate sulfate radicals for the decomposition of different dyes such as methylene blue, methyl orange, and rhodamine B. For the Ag/CFO sample, Ag NPs validated the roles in dye adsorption, reduction of 4-nitrophenol, and improvement of antibacterial behavior. The growth inhibition activity of Ag/CFO NPs was observed against (18.18 ± 2.48 mm) and (10.14 ± 0.72 mm). Furthermore, Ag/CFO NPs displayed good reusability after three consecutive runs. Therefore, Ag/CFO material is shown to be a potential multifunctional catalyst in wastewater treatment.

摘要

在本研究中，采用水热法合成了钴铁氧体纳米颗粒（CFO NPs）。然后，以茉莉提取物作为银离子的还原剂，将银纳米颗粒（Ag NPs）修饰在CFO NPs上，形成Ag/CFO NPs。通过X射线粉末衍射、场发射扫描电子显微镜、能量色散X射线光谱、傅里叶变换红外光谱、振动样品磁强计以及非辐射条件下的催化测试对Ag/CFO NPs的性能进行了表征。催化结果表明，Ag/CFO NPs可以活化过一硫酸盐以产生硫酸根自由基，用于分解亚甲基蓝、甲基橙和罗丹明B等不同染料。对于Ag/CFO样品，Ag NPs验证了其在染料吸附、4-硝基苯酚还原以及抗菌性能改善方面的作用。观察到Ag/CFO NPs对（18.18±2.48 mm）和（10.14±0.72 mm）具有生长抑制活性。此外，Ag/CFO NPs在连续运行三次后表现出良好的可重复使用性。因此，Ag/CFO材料被证明是一种潜在的用于废水处理的多功能催化剂。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/2e422ad6d109/d3ra02950f-f13.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/159f6e11e023/d3ra02950f-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/ced5c324a929/d3ra02950f-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/16e1f0002ba0/d3ra02950f-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/bb171bfb9017/d3ra02950f-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/3e5b37078fbb/d3ra02950f-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/493d0299e590/d3ra02950f-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/2e422ad6d109/d3ra02950f-f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/03f43f8c87da/d3ra02950f-f1.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/cd3f0ed40ad0/d3ra02950f-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/a946f32e9f4d/d3ra02950f-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/175a0a224b3b/d3ra02950f-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/541ddbaf3f8a/d3ra02950f-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/159f6e11e023/d3ra02950f-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/ced5c324a929/d3ra02950f-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/16e1f0002ba0/d3ra02950f-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/bb171bfb9017/d3ra02950f-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/3e5b37078fbb/d3ra02950f-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/493d0299e590/d3ra02950f-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/78ae/10427894/2e422ad6d109/d3ra02950f-f13.jpg

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