| La/酸化膨润土吸附剂的表征与除磷性能 |
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| 引用本文： | 朱鹏飞,任静,罗凤琳,牛笛,曾静.La/酸化膨润土吸附剂的表征与除磷性能[J].光谱实验室,2013,30(5):2521-2524. |
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| 作者姓名： | 朱鹏飞 任静 罗凤琳 牛笛 曾静 |
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| 作者单位： | 西南石油大学化学化工院 成都市新都区新都大道8号 610500 |
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| 基金项目： | 西南石油大学课外开放实验重点项目 |
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| 摘 要： | 以酸化改性膨润土为载体,采用浸泡法制备了稀土La掺杂的La/酸化膨润土吸附剂.通过XRD和FTIR对其结构进行了表征,探讨了膨润土的改性机理,研究了该吸附剂对废水的除磷性能.结果表明：酸化过程洗掉了膨润土中的杂质和氧化铝,稀土镧的掺杂在膨润土层间及表面引入了一定数量的羟基化合物,改善了膨润土的层间结构并生成了新的La-O-Si键,实现了La与膨润土的复合,提高了膨润土的吸附性能.
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| 关 键 词： | 膨润土 酸化 La掺杂 表征 除磷 |
Characterization and Phosphorus Removal Performance of Lanthanum/Acidified Bentonite Sorbent |
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| ZHU Peng-Fei
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REN Jing
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LUO Feng-Lin
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NIU Di
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ZENG Jing.Characterization and Phosphorus Removal Performance of Lanthanum/Acidified Bentonite Sorbent[J].Chinese Journal of Spectroscopy Laboratory,2013,30(5):2521-2524. |
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| Authors: | ZHU Peng-Fei REN Jing LUO Feng-Lin NIU Di ZENG Jing |
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| Institution: | ( School of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu 610500, P. R. China ) |
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| Abstract: | La doping bentonite sorbent was prepared by immersion method, with acidation bentonite as the carrier. Through the XRD and FTIR,the structure and the mechanism of property modification were discussed,and also the adsorptive capability of the sorbent in removing phosphorus was investigated. The results show that the acidification process make the impurities and aluminum oxide in bentonite washed away, and La doping can lead the introduction of the surface hydroxyl groups into the interlayer or surface of bentonite. Then the composition of La with bentonite is realized and the interlayer structure of bentonite is improved because of the new formed La--O--Si bond. And then,the adsorption performance of the sorbent is increased. |
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| Keywords: | Bentonite Acidize La Doping Characterization Phosphorus Removal |
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