Transmission IR Micro-Spectroscopy of Interfacial Water between Colloidal Silica Particles

被引：9

作者：

Hamamoto, Mai ^{[1
]}

Katsura, Makoto ^{[1
]}

Nishiyama, Naoki ^{[1
]}

Tononue, Ryota ^{[1
]}

Nakashima, Satoru ^{[1
]}

机构：

[1] Osaka Univ, Grad Sch Sci, Dept Earth & Space Sci, Machikaneyama Cho 1-1, Toyonaka, Osaka 5600043, Japan

来源：

E-JOURNAL OF SURFACE SCIENCE AND NANOTECHNOLOGY | 2015年 / 13卷

关键词：

Infrared absorption spectroscopy; Water; Silicon oxides; Nano-particles; Surface structure;

D O I：

10.1380/ejssnt.2015.301

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Interfacial water among silica particles were measured on silica colloid suspensions (0-31.1 vol.%) by transmission infrared micro-spectroscopy. The difference absorption index k spectra from the pure water of silica colloid suspensions with varying volume fractions have residual components in the O-H stretching region: the 3060 cm(-1) component increased linearly with the silica volume fraction, while the 3620 cm(-1) component increased and the 3380 cm(-1) component decreased with much less linearity. The 3060 and 3620 cm(-1) components are considered to be characteristic to the surface silanol and interfacial water and affected by overlapping diffuse electrical double layers among silica particles.

引用

页码：301 / 306

页数：6

共 43 条

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Adamson A.W., 1990, PHYS CHEM SURFACES

[2] REFRACTIVE-INDEX OF CONCENTRATED COLLOIDAL DISPERSIONS [J].