金纳米颗粒在陶瓷釉料中的降解和重整的多尺度研究

IF 2.2 4区 工程技术 Q2 Chemistry Gold Bulletin Pub Date : 2018-06-06 DOI:10.1007/s13404-018-0230-7
Nathan NL. Dinh, Luke T. DiPasquale, Michael C. Leopold, Ryan H. Coppage
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引用次数: 2

摘要

大多数传统陶瓷釉料使用大量的过渡金属着色剂,这些着色剂对环境有毒,并可能通过表面浸出导致人类健康问题。金纳米颗粒(Au-NPs)是一种环保无毒的陶瓷釉料替代金属着色剂。用Au-NPs观察到的等离子体带可以通过操纵NP的大小、形状和浓度来产生充满活力的溶液;然而,传统的还原窑和氧化窑烧制对Au-NPs的影响尚不清楚。除了其机制尚未充分探索的古代艺术过程外,使用Au-NPs作为悬浮陶瓷釉色剂仍未得到充分探索。以前报道过Au-NPs在烧结过程中尺寸减小,并且在还原和氧化烧制气氛中具有显著的浓度差异。作为研究烧成过程中釉内可能的降解/再成核过程的一种手段,采用透射电子显微镜和反射光谱法对不同直径的Au-NP引入釉材料进行了系统的研究,以探索Au-NP直径和颜色强度变化的可能机制,使这项工作适用于工业和艺术当前的实践。
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A multi-size study of gold nanoparticle degradation and reformation in ceramic glazes

Most traditional ceramic glazes employ high amounts of transition metal colorants that are toxic to the environment and can cause health issues in humans through surface leaching. Gold nanoparticles (Au-NPs) have been found to be environmentally friendly and non-toxic alternative metal colorant in ceramic glazes. The plasmon band observed with Au-NPs can result in vibrant solutions by manipulating NP size, shape, and concentration; however, the effects of traditional firing in both reductive and oxidative kilns on Au-NPs are poorly understood. Aside from ancient art processes whose mechanisms have not been fully explored, the use of Au-NPs as suspended ceramic glaze colorants remains somewhat unexplored. Au-NPs have been previously reported to diminish in size during sintering and possess significant differences in concentration with respect to reduction and oxidation firing atmospheres. As a means of studying possible degradation/renucleation processes within the glaze during firing, a systematic study introducing different diameter Au-NPs into the glaze materials was conducted with transmission electron microscopy and reflectance spectroscopy used to probe possible mechanisms which showed changes to Au-NP diameter and color intensity, making this work applicable to industry and art current practices.

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来源期刊
Gold Bulletin
Gold Bulletin 工程技术-材料科学:综合
CiteScore
3.30
自引率
4.50%
发文量
0
审稿时长
3 months
期刊介绍: Gold Bulletin is the premier international peer reviewed journal on the latest science, technology and applications of gold. It includes papers on the latest research advances, state-of-the-art reviews, conference reports, book reviews and highlights of patents and scientific literature. Gold Bulletin does not publish manuscripts covering the snthesis of Gold nanoparticles in the presence of plant extracts or other nature-derived extracts. Gold Bulletin has been published over 40 years as a multidisciplinary journal read by chemists, physicists, engineers, metallurgists, materials scientists, biotechnologists, surface scientists, and nanotechnologists amongst others, both within industry and academia. Gold Bulletin is published in Association with the World Gold Council.
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