One-step nitrogen plasma process for bimetallic impregnation to obtain N-TiO2−X /Au/Ag composite

IF 3.1 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
R. Trejo-Tzab, JA Aguilar-Jiménez, P. Quintana-Owen, A. Ávila-Ortega, M. Álvarez-Lemus, RA Medina-Esquivel
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引用次数: 3

Abstract

The main motivation of this work is to deposit two different metals (gold and silver) on titanium oxide nanoparticles surface in a one-step simple and fast physical process by applying a nitrogen plasma as the main source of nitrogen atoms to obtain nanostructured N-TiO2 − X /Au/Ag materials. The obtained nanomaterials were characterized by X-ray photoelectron spectroscopy, X-ray diffraction, diffuse reflectance spectroscopy, scanning electron microscopy–energy dispersive X-ray spectroscopy, and high-resolution transmission electron microscopy. Based on the characterization results, we found that gold and silver nanoparticles were uniformly loaded on the titanium oxide nanocomposite surface, showing a surface plasmon absorption band due to the loading of the metal nanoparticles over titania samples. The results of this work have shown that nitrogen plasma technique is a more feasible and simple alternative to obtain the N-TiO2 − X /Au/Ag nanocomposite. Moreover, this plasma technique could be used to impregnate with other kind of metals over the surface of diverse nanomaterials.
一步氮等离子体双金属浸渍工艺制备N-TiO2−X/Au/Ag复合材料
这项工作的主要动机是通过应用氮等离子体作为氮原子的主要来源,在氧化钛纳米颗粒表面以一步简单快速的物理过程沉积两种不同的金属(金和银),以获得纳米结构的N-TiO2−X/Au/Ag材料。通过X射线光电子能谱、X射线衍射、漫反射光谱、扫描电子显微镜-能量色散X射线光谱和高分辨率透射电子显微镜对所获得的纳米材料进行了表征。基于表征结果,我们发现金和银纳米颗粒均匀地负载在二氧化钛纳米复合材料表面,由于金属纳米颗粒负载在二氧化钛样品上,显示出表面等离子体吸收带。本工作的结果表明,氮等离子体技术是获得N-TiO2−X/Au/Ag纳米复合材料的一种更可行、更简单的替代方法。此外,这种等离子体技术可以用于在各种纳米材料的表面浸渍其他类型的金属。
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来源期刊
Nanomaterials and Nanotechnology
Nanomaterials and Nanotechnology NANOSCIENCE & NANOTECHNOLOGY-MATERIALS SCIENCE, MULTIDISCIPLINARY
CiteScore
7.20
自引率
21.60%
发文量
13
审稿时长
15 weeks
期刊介绍: Nanomaterials and Nanotechnology is a JCR ranked, peer-reviewed open access journal addressed to a cross-disciplinary readership including scientists, researchers and professionals in both academia and industry with an interest in nanoscience and nanotechnology. The scope comprises (but is not limited to) the fundamental aspects and applications of nanoscience and nanotechnology
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