紫檀叶氧化铜纳米颗粒的介电性能

P. S. Vindhya, T. Jeyasingh, V. Kavitha
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引用次数: 9

摘要

本研究旨在采用安全、无毒、环保的绿色方法合成、表征和制备氧化铜纳米颗粒。通过XRD、FT-IR、SEM和UV-Vis光谱对生物合成的氧化铜纳米颗粒进行了表征。通过x射线衍射分析(XRD)对产物的结构和晶粒大小进行了表征。XRD分析表明,制备的纳米粉体具有结晶性质,在c2/c空间群中具有单斜晶结构,晶粒尺寸为21nm。傅里叶变换红外光谱(FTIR)中525cm−1处的峰值对应于Cu-O的拉伸,证实了CuO纳米颗粒的形成。紫外可见光谱显示CuO纳米粒子在波长为355nm处有一个特征吸收峰。在室温下,用烧结球团在1Hz-10MHz频率范围内进行了介电测量。在1MHz时得到的介电常数(ℇ’)和损耗因子(tan δ)分别为41和0.0014。交流电导率(σ ac)性能表现为电导率随温度的升高而增大,在电子器件中有应用。本研究旨在采用安全、无毒、环保的绿色方法合成、表征和制备氧化铜纳米颗粒。通过XRD、FT-IR、SEM和UV-Vis光谱对生物合成的氧化铜纳米颗粒进行了表征。通过x射线衍射分析(XRD)对产物的结构和晶粒大小进行了表征。XRD分析表明,制备的纳米粉体具有结晶性质,在c2/c空间群中具有单斜晶结构,晶粒尺寸为21nm。傅里叶变换红外光谱(FTIR)中525cm−1处的峰值对应于Cu-O的拉伸,证实了CuO纳米颗粒的形成。紫外可见光谱显示CuO纳米粒子在波长为355nm处有一个特征吸收峰。在室温下,用烧结球团在1Hz-10MHz频率范围内进行了介电测量。得到的介电常数(ℇ’)和损耗因子(tan δ)分别为41…
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Dielectric properties of copper oxide nanoparticles using AnnonaMuricata leaf
Present investigation aims the synthesis, characterizationand dielectric properties of Copper Oxide (CuO) nanoparticles using AnonnaMuricata leaf by means of safe, non-toxic, and eco-friendly green method. The biosynthesized nanoparticles of copper oxide are characterized through XRD, FT-IR, SEM, and UV-Vis spectra. Structure and crystallite size of the product were identified by X-Ray Diffraction analysis (XRD). XRD analysis reveals that prepared nanopowder has crystalline nature with monoclinic structure in the space group of c2/c having crystallite size of 21nm. Peak at 525cm−1 in Fourier Transform Infrared Spectra (FTIR) corresponds to Cu-O stretching which confirm the formation of CuO nanoparticles. UV-Visible spectrum shows a characteristic absorption peak of CuO nanoparticles at wavelength of 355nm. Dielectric measurements have been carried out using sintered pellet in the frequency range 1Hz-10MHz at room temperature. The obtained values of dielectric constant (ℇ’) and loss factor (tan δ) were 41 and 0.0014 respectively at 1MHz. A.C conductivity (σa.c) performance shows electrical conductivity increases with increase in temperature, it make applications for electronic devices.Present investigation aims the synthesis, characterizationand dielectric properties of Copper Oxide (CuO) nanoparticles using AnonnaMuricata leaf by means of safe, non-toxic, and eco-friendly green method. The biosynthesized nanoparticles of copper oxide are characterized through XRD, FT-IR, SEM, and UV-Vis spectra. Structure and crystallite size of the product were identified by X-Ray Diffraction analysis (XRD). XRD analysis reveals that prepared nanopowder has crystalline nature with monoclinic structure in the space group of c2/c having crystallite size of 21nm. Peak at 525cm−1 in Fourier Transform Infrared Spectra (FTIR) corresponds to Cu-O stretching which confirm the formation of CuO nanoparticles. UV-Visible spectrum shows a characteristic absorption peak of CuO nanoparticles at wavelength of 355nm. Dielectric measurements have been carried out using sintered pellet in the frequency range 1Hz-10MHz at room temperature. The obtained values of dielectric constant (ℇ’) and loss factor (tan δ) were 41 ...
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