中国物理B ›› 2019, Vol. 28 ›› Issue (6): 60702-060702.doi: 10.1088/1674-1056/28/6/060702

• SPECIAL TOPIC—Recent advances in thermoelectric materials and devices • 上一篇    下一篇

Investigation of copper sulfate pentahydrate dehydration by terahertz time-domain spectroscopy

Yuan-Yuan Ma(马媛媛), Hao-Chong Huang(黄昊翀), Si-Bo Hao(郝思博), Wei-Chong Tang(汤伟冲), Zhi-Yuan Zheng(郑志远), Zi-Li Zhang(张自力)   

  1. School of Science, China University of Geosciences, Beijing 100083, China
  • 收稿日期:2019-02-21 修回日期:2019-04-02 出版日期:2019-06-05 发布日期:2019-06-05
  • 通讯作者: Wei-Chong Tang, Zi-Li Zhang E-mail:hhcistaurus@hotmail.com;zlzhang@cugb.edu.cn
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 61805214) and the Fundamental Research Funds for the Central Universities, China (Grant No. 2652017142).

Investigation of copper sulfate pentahydrate dehydration by terahertz time-domain spectroscopy

Yuan-Yuan Ma(马媛媛), Hao-Chong Huang(黄昊翀), Si-Bo Hao(郝思博), Wei-Chong Tang(汤伟冲), Zhi-Yuan Zheng(郑志远), Zi-Li Zhang(张自力)   

  1. School of Science, China University of Geosciences, Beijing 100083, China
  • Received:2019-02-21 Revised:2019-04-02 Online:2019-06-05 Published:2019-06-05
  • Contact: Wei-Chong Tang, Zi-Li Zhang E-mail:hhcistaurus@hotmail.com;zlzhang@cugb.edu.cn
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 61805214) and the Fundamental Research Funds for the Central Universities, China (Grant No. 2652017142).

摘要:

Copper sulfate pentahydrate is investigated by terahertz time-domain spectroscopy. It is shown that the terahertz absorption coefficients are correlated with the particle size of the samples, as well as the heating rates of the ambient temperature. Furthermore, the water molecules of copper sulfate pentahydrate can be quantitatively characterized due to the high sensitivity of the terahertz wave to water molecules. Based on such results, the status of water incorporated in mineral opal is also characterized using terahertz time-domain spectroscopy. It indicates that terahertz technology can be considered as an efficient method to detect the dehydration of minerals.

关键词: copper sulfate pentahydrate, water status, terahertz time-domain spectroscopy

Abstract:

Copper sulfate pentahydrate is investigated by terahertz time-domain spectroscopy. It is shown that the terahertz absorption coefficients are correlated with the particle size of the samples, as well as the heating rates of the ambient temperature. Furthermore, the water molecules of copper sulfate pentahydrate can be quantitatively characterized due to the high sensitivity of the terahertz wave to water molecules. Based on such results, the status of water incorporated in mineral opal is also characterized using terahertz time-domain spectroscopy. It indicates that terahertz technology can be considered as an efficient method to detect the dehydration of minerals.

Key words: copper sulfate pentahydrate, water status, terahertz time-domain spectroscopy

中图分类号:  (Infrared, submillimeter wave, microwave, and radiowave sources)

  • 07.57.Hm
29.30.-h (Spectrometers and spectroscopic techniques) 33.20.-t (Molecular spectra)