| 柱撑蒙脱石吸附与催化降解黄药的特性研究 |
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| 引用本文： | 余江,原小涛,刘会洲,李文军.柱撑蒙脱石吸附与催化降解黄药的特性研究[J].环境化学,2005,24(4):394-396. |
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| 作者姓名： | 余江 原小涛 刘会洲 李文军 |
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| 作者单位： | 中国科学院过程工程研究所分离科学与工程实验室,北京,100080;北京大学稀土材料化学及应用国家重点实验室,北京,100871;北京科技大学应用化学学院,北京,100083;中国科学院过程工程研究所分离科学与工程实验室,北京,100080 |
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| 基金项目： | 国家自然科学基金资助项目(No．50474045．No．50244021)． |
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| 摘 要： | 以黄药水溶液为模拟对象，分别考察了粘土用量、吸附时间以及黄药初始浓度等参数对柱撑蒙脱石吸附黄药的影响，结果表明，改性后蒙脱石的结构变化对改善其吸附能力起到了关键作用，有机柱撑剂不仅改变了复合柱撑粘土中蒙脱石原有的亲水特性，合柱撑蒙脱石具有吸附速度快和吸附容量大的特点，同时改善了层间距中无机柱撑剂的物化特性，使得复并且提高了其催化性能。
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| 关 键 词： | 柱撑蒙脱石 黄药 吸附 光催化降解 |
STUDIES ON ADSORPTION AND PHOTOCATALYTIC DEGRADATION OF XANTHATE BY PILLARED MONTMORILLONITE |
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| YU Jiang,YUAN Xiao-tao,LIU Hui-zhou,LI Wen-jun.STUDIES ON ADSORPTION AND PHOTOCATALYTIC DEGRADATION OF XANTHATE BY PILLARED MONTMORILLONITE[J].Environmental Chemistry,2005,24(4):394-396. |
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| Authors: | YU Jiang YUAN Xiao-tao LIU Hui-zhou LI Wen-jun |
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| Institution: | YU Jiang YUAN Xiao-tao LIU Hui-zhou LI Wen-jun Laboratory of Separation Sciences & Engineering,Institute of Process Engineering,Chinese Academy of Sciences,Beijing,100080, State Key Laboratory of Rare Earth Materials Chemistry and Applications,College of Chemistry and Molecular Engineering,Peking University,Beijing,100871 , Department of Applied Chemistry,Beijing University of Sciences and Technology,Beijing,100083 |
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| Abstract: | Three sorts of modified clays, organoclay, inorganoclay and inorgano/organo clay, were synthesized by the reaction of Na-montmorillonite with Ti-crosslinking agent and oetyltrimethylammonium bromide (CTAB). Amount of clay, adsorption time and the concentration of xanthate were treated as the most important parameters to investigate their adsorption abilities to xanthate in this work. The primary results indicated that inorgano/organoclay had the highest interlayer among them, which contribute the best adsorption capacity to xanthate. Moreover, it proved that inorgano/organoclay could be regenerated and used as photocatalyst to degrade xanthate by ultraviolet irradiation at 254nm. It is expected that this new material could be developed as potential eco - environmental materials for absorbing and photolyzing organic pollutants from wastewater. |
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| Keywords: | pillared montmorillonite xanthate adsorption photaocatalytic degradation |
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