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| 利用氨吸附漫反射红外光谱法探测蒙脱石的固体酸性 | |
| 引用本文： | 刘冬,袁鹏,刘红梅,蔡进功,覃宗华,樊明德,陶奇,何宏平,朱建喜.利用氨吸附漫反射红外光谱法探测蒙脱石的固体酸性[J].矿物学报,2010,30(1). |
| 作者姓名： | 刘冬 袁鹏 刘红梅 蔡进功 覃宗华 樊明德 陶奇 何宏平 朱建喜 |
| 作者单位： | 1. 中国科学院广州地球化学研究所,广东,广州,510640;中国科学院研究生院,北京,100039 2. 中国科学院广州地球化学研究所,广东,广州,510640 3. 同济大学海洋与地球科学学院,上海,200092 4. 中国科学院广州地球化学研究所,广东,广州,510640;内蒙古大学环境与资源学院,呼和浩特,010021 |
| 基金项目： | 中国石油化工股份有限公司科技项目(批准号:P080390);;国家自然科学基金项目(批准号:40872089) |
| 摘 要： | 用氨吸附漫反射红外光谱学方法,借助图谱拟合解谱手段,探测了不同预处理温度下蒙脱石表面酸性变化特征,并分析了其变化原因。结果表明,低温热处理后的蒙脱石,其B酸和L酸量增大;经较高温度(400、600℃)煅烧的样品,层间距急剧减小,氨分子难以进入层间与酸位发生反应,可探测到的两种酸量都将减少。 |
| 关 键 词： | 氨吸附 蒙脱石 漫反射红外光谱 固体酸性 谱图拟合 |
A Study on the Acidity of Montmorillonite by using Ammonia DRIFT Spectroscopy |
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| LIU Dong,YUAN Peng,LIU Hong-mei,CAI Jin-gong,QIN Zong-hua,FAN Ming-de,TAO Qi,HE Hong-ping,ZHU Jian-xi.A Study on the Acidity of Montmorillonite by using Ammonia DRIFT Spectroscopy[J].Acta Mineralogica Sinica,2010,30(1). | |
| Authors: | LIU Dong YUAN Peng LIU Hong-mei CAI Jin-gong QIN Zong-hua FAN Ming-de TAO Qi HE Hong-ping ZHU Jian-xi |
| Institution: | 1.Guangzhou Institute of Geochemistry/a>;Chinese Academy of Sciences/a>;Guangzhou 510640/a>;China/a>;2.Graduate School of Chinese Academy of Sciences/a>;Beijing 100039/a>;3.School of Ocean and Earth Science/a>;Tongji University/a>;Shanghai 200092/a>;4.College of Environment and Resources/a>;Inner Mongolia University/a>;Hohhot 010021/a>;China |
| Abstract: | The surface acidity of montmorillonite pretreated at different temperatures was studied by using ammoniaadsorption Diffuse Reflectance Infrared Fourier Transform spectroscopy(DRIFT).Curve fitting on the obtained spectra was conducted and the differences of spectra of various montmorillonite samples were specifically analyzed.The results show that the Bronsted and Lewis acid capacity increases in the montmorillonite pretreated at low-temperature,compared with non-pretreated montmorillonite.However,for the mo... |
| Keywords: | ammonia adsorption montmorillonite DRIFT solid acidity curve fitting |
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