Infrared and infrared emission spectroscopic study of typical Chinese kaolinite and halloysite

被引：90

作者：

Cheng, Hongfei ^{[1
,2
,3
]}

Frost, Ray L. ^{[1
]}

Yang, Jing ^{[1
]}

Liu, Qinfu ^{[2
]}

He, Junkai ^{[2
]}

机构：

[1] Queensland Univ Technol, Fac Sci & Technol, Chem Discipline, Brisbane, Qld 4001, Australia

[2] Inner Mongolia Univ Sci & Technol, Sch Min Engn, Baotou 014010, Peoples R China

[3] China Univ Min & Technol, Sch Geosci & Surveying Engn, Beijing 100083, Peoples R China

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2010年 / 77卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Infrared; Infrared emission spectra; Raman; Kaolinite; Halloysite; RAMAN-SPECTROSCOPY; POTASSIUM ACETATE; THERMAL-ANALYSIS; VIBRATIONAL SPECTROSCOPY; INTERCALATED KAOLINITES; PARTICLE-SIZE; FORMAMIDE; ULTRASOUND; BEHAVIOR; WATER;

D O I：

10.1016/j.saa.2010.08.039

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

The structure and thermal stability between typical Chinese kaolinite and halloysite were analysed by X-ray diffraction (XRD), infrared spectroscopy, infrared emission spectroscopy (IES) and Raman spectroscopy. Infrared emission spectroscopy over the temperature range of 300-700 degrees C has been used to characterise the thermal decomposition of both kaolinite and halloysite. Halloysite is characterised by two bands in the water bending region at 1629 and 1648 cm(-1), attributed to structural water and coordinated water in the interlayer. Well defined hydroxyl stretching bands at around 3695, 3679, 3652 and 3625 cm(-1) are observed for both kaolinite and halloysite. The 550 degrees C infrared emission spectrum of halloysite is similar to that of kaolinite in 650-1350cm(-1) spectral region. The infrared emission spectra of halloysite were found to be considerably different to that of kaolinite at lower temperatures. These differences are attributed to the fundamental difference in the structure of the two minerals. (c) 2010 Elsevier B.V. All rights reserved.

引用

页码：1014 / 1020

页数：7

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