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Journal of Cluster Science

, Volume 28, Issue 4, pp 1923–1935 | Cite as

Spectroscopic Investigation for Purity Evaluation of Detonation Nanodiamonds: Experimental Approach in Absorbance and Scattering

  • Hamid Motahari
  • Rasoul Malekfar
Original Paper

Abstract

Nanodiamond powders have excellent mechanical, chemical, physical, and optical properties. In this research, two non-pure groups of nanodiamond particles labeled as ND1 and ND2 have been selected for purity evaluation by means of absorbance and scattering analysis. The nanodiamond powders have been used for Raman and dynamic light scattering (DLS), Fourier transform infrared (FTIR) and UV–Vis absorbance approaches. The Raman spectra show a weak diamond signal in ND2 as purity and 4 basic set of bands. FTIR absorbance spectroscopy was used in the spectral range of 400–3600 cm−1. The results show that ND2 is almost non-absorbance with wavelength. It means that the diamond phase purity of ND2 is greater than ND1, and ND2 shows a better structure of diamond. UV–Vis absorption spectra of the sample have been recorded in the spectral range of 200–800 nm by means of nanodiamond suspended in methanol (NDM). The UV–Vis absorbance of NDM1 is stronger than NDM2 at the same concentration. Therefore the diamond phase purity of ND2 is greater than ND1. Particle size distribution and zeta potential of DNDs were investigated by DLS method. Finally the structure and phase of samples have been evaluated by X-ray diffraction (XRD) for confirmation.

Keywords

Nanodiamond Purity evaluation UV–Vis Micro-Raman FTIR DLS 

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Copyright information

© Springer Science+Business Media New York 2017

Authors and Affiliations

  1. 1.Atomic and Molecular Group, Department of PhysicsTarbiat Modares UniversityTehranIslamic Republic of Iran

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