合成CaNb2O6与一个Rynersonite-like结构:形态学,瑞特维尔德精细化,光学和振动性质
José Fábio de Lima Nascimento1, Francisco Xavier Nobre2,3,4, Francisco Marcos Costa Batista5,6
1Graduate Program in Natural Resources Engineering in the Amazon, PRODERNA/ITEC/UFPA, Federal University of Pará, Campus Universitário do Guamá, Rua Augusto Corrêa, 01, Belém, Pará 66075-110, Brazil.
Inorganic chemistry
|September 27, 2023
概括
研究人员开发了一种简单,低成本的方法,在室温下合成酸 (CaNb2O6). 这种材料在UVA频谱中显示出强烈的光子吸收潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 固态化学 固态化学
- 无机合成 无机合成
背景情况:
- 酸 (CaNb2O6) 是一种无机化合物,在各种领域都有潜在的应用.
- 莱纳森石矿物结构 (CaTa2O6) 作为等态结构的参考.
- 有效的合成方法对于探索新材料的特性和应用至关重要.
研究的目的:
- 报告一个简单的和低成本的酸 (CaNb2O6) 的合成.
- 研究合成的CaNb2O6.6的结构,光学和形态特性.
- 为了在室温和较短的反应时间实现合成.
主要方法:
- 在室温下进行合成的球磨法.
- 用X射线衍射 (XRD) 和瑞特维尔德精细化进行结构分析.
- 振动拉曼光谱用于模式表征.
- 扫描电子显微镜 (SEM) 用于表面形态分析.
主要成果:
- 纯相CaNb2O6在经过3-4个小时的球磨后与Rynersonite-isomorphic结构合成.
- 结晶体大小为22.5nm和23.2nm,分别为3h和4h样本获得.
- 3小时样本的光带间隙为3.18(2) eV,表明强烈的UVA光子吸收.
- SEM揭示了不规则的亚微和微尺度粒子的聚合物.
结论:
- 通过简单,低成本,室温球磨工艺成功合成酸尼奥酸盐 (CaNb2O6).
- 合成材料具有结构和光学特性,适用于需要UVA光吸收的应用.
- 该方法提供了一个时间效率高的途径,以生产纯相CaNb2O6与可控制的晶体尺寸.
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