| 煅烧凹凸棒石的水化处理对其结构演化和吸附NH3的影响 |
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| 引用本文： | 孔德军,陈天虎,刘海波,陈冬,谢晶晶,庆承松.煅烧凹凸棒石的水化处理对其结构演化和吸附NH3的影响[J].硅酸盐学报,2011,39(11):1867-1871. |
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| 作者姓名： | 孔德军 陈天虎 刘海波 陈冬 谢晶晶 庆承松 |
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| 作者单位： | 合肥工业大学资源与环境工程学院,合肥,230009 |
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| 基金项目： | 国家自然科学基金(41072035,41072036)资助项目 |
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| 摘 要： | 采用X射线衍射分析了煅烧凹凸棒石的水化处理对其结构演化的影响;通过NH3吸附试验表征煅烧凹凸棒石水化处理后表面性质的变化,揭示了凹凸棒石对NH3的吸附机理。结果表明：随着煅烧温度的不断提高,凹凸棒石中的结晶水和结构水逐步脱除,内孔道结构发生折叠塌陷,凹凸棒石的内孔道折叠温度在250～300℃之间,只有低于300℃煅烧的...
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| 关 键 词： | 凹凸棒石 煅烧 水化 结构演化 氨吸附 |
Effect of Rehydration on Structure Evolution and Ammonia Adsorption of Calcined Palygorskite |
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| KONG Dejun,CHEN Tianhu,LIU Haibo,CHEN Dong,XIE Jingjing,QING Chengsong.Effect of Rehydration on Structure Evolution and Ammonia Adsorption of Calcined Palygorskite[J].Journal of The Chinese Ceramic Society,2011,39(11):1867-1871. |
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| Authors: | KONG Dejun CHEN Tianhu LIU Haibo CHEN Dong XIE Jingjing QING Chengsong |
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| Affiliation: | KONG Dejun,CHEN Tianhu,LIU Haibo,CHEN Dong,XIE Jingjing,QING Chengsong(School of Natural Resources and Environment Engineering,Hefei University of Technology,Hefei 230009,China) |
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| Abstract: | The structure evolution of calcined palygorskite during rehydration was analyzed by X-ray diffraction.Effect of rehydra-tion on the surface properties of calcined palygorskite was investigated via the experiments of ammonia adsorption,and the corre-sponding mechanism of NH3 adsorption was discussed.The results show that the crystallization water and structural water in paly-gorskite is removed gradually and the pore structure occurs folding and collapse when the calcination temperature increases.The structu... |
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| Keywords: | palygorskite calcination rehydration structure evolution ammonia adsorption |
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