Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Spectroscopic Characteristics of synthetic and natural emerald by heat treatment

열처리에 따른 합성과 천연 에메랄드의 분광특성분석

  • Hwoang, Hye-Kyung (Department of Materials & Chemical Engineering, Hanyang University) ;
  • Ahn, Yong-Kil (Division of Materials Science & Engineering, Hanyang University) ;
  • Seo, Jin-Gyo (Division of Materials Science & Engineering, Hanyang University) ;
  • Park, Jong-Wan (Division of Materials Science & Engineering, Hanyang University)
  • 황혜경 (한양대학교 공학대학원 보석학과) ;
  • 안용길 (한양대학교 공과대학 신소재공학과) ;
  • 서진교 (한양대학교 공과대학 신소재공학과) ;
  • 박종완 (한양대학교 공과대학 신소재공학과)
  • Published : 2010.01.31
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Abstract

The spectroscopic characteristics of synthetic and natural emeralds were investigated by UV-Vis and FTIR spectroscopy before and after heat treatment. The Mo and Co for synthetic flux and C1 for synthetic hydrothermal emeralds have been detected by X-ray fluorescence analysis. In the region of UV-Visible, the absorption of emerald from Colombia was generally increased after the heat treatment. The peak which related to C1 component in the $3000-2600cm^{-1}$ was shown in the hydrothermal synthetic emeralds by FTIR spectroscopy. The $2358cm^{-1}$ peak which originates from $CO_2$ was decreased after the heat treatment in the natural emerald. This was corresponded with the changes of gas element after heat treatment.

합성과 천연 에메랄드의 열처리에 따른 분광특성 변화를 가시광선과 적외선 분광분석으로 관찰하였다. X-선 형광분석 결과 flux 합성 에메랄드에서는 Mo과 Co이 검출 되었고, hydrothermal 합성 에메랄드에서는 Cl 성분이 나타났다. 자외선-가시광선 분광분석 결과는 콜롬비아산 에메랄드 시료에서 열처리 후에 전체적인 흡수 세기가 증가 한 것을 확인 하였다. 적외선 분광 분석 결과, hydrothermal 합성 에메랄드에서 Cl 성분에 관련된 피크가 $3000-2600cm^{-1}$에서 나타났고, 천연 에메랄드에서는 $CO_2$에 기인하는 $2358cm^{-1}$피크가 열처리후에 감소된 것을 확인하였다. 이는 열처리 후에 기체 성분이 변화된 것과 일치 하였다.

Keywords

References

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