Investigation on the Influence of Microstructure Based on Hydrogen Bonding on Surface Tension by Raman Spectroscopy

Nannan Wu; Shunli Ouyang; Junjie Cui; Shiliang Liu; Mingzhe Zhang; Qingcheng Hu; Baokun Huang

doi:10.1155/2019/7975237

Investigation on the Influence of Microstructure Based on Hydrogen Bonding on Surface Tension by Raman Spectroscopy

Int J Anal Chem. 2019 Dec 29:2019:7975237. doi: 10.1155/2019/7975237. eCollection 2019.

Authors

Nannan Wu^{1

2}, Shunli Ouyang¹, Junjie Cui¹, Shiliang Liu³, Mingzhe Zhang¹, Qingcheng Hu¹, Baokun Huang⁴

Affiliations

¹ Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources, Inner Mongolia University of Science and Technology, Baotou 014010, China.
² College of Science, Inner Mongolia University of Science and Technology, Baotou 014010, China.
³ School of Energy and Environment, Inner Mongolia University of Science and Technology, Baotou 014010, China.
⁴ Electronic Engineering School, Huaihai Institute of Technology, Lianyungang 222000, China.

Abstract

Surface tension and Raman spectra containing hydrogen bonding in acetonitrile aqueous solutions with different mole ratios were obtained. Varied surface tension and hydrogen bonding in the mixed solution were discussed. For this purpose, the OH stretching bands were fitted into three Gaussian components to which different hydrogen-bonded water samples were assigned. Furthermore, the microstructures of binary solution were analyzed. The results indicated that the surface tension decreases dramatically with the enhancement of hydrogen bonds in the mixture. A spectroscopic method for studying the macroscopic properties of aqueous solutions was employed. The direct experiment results provided the relationship between surface tension and microstructure in aqueous solutions.