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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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钛纳米管的制备和对铀离子的吸附
Keywords: 金属材料,？吸附铀,？钛纳米管,？,水热法
Abstract:
？以钛酸丁酯为钛源采用水热法制备钛纳米管,用透射电镜和x射线衍射分析(xrd)表征材料的形貌和组成以及n2吸附/脱附比表面积的测试,研究了钛纳米管对铀离子的吸附。结果表明,钛纳米管的外径为8nm,管长度达2？μm,由na2ti3o7与h3ti3o7共存组成；吸附铀容量随着温度的升高、震荡时间的增加平缓升高,最大吸附ph值为5,饱和吸附容量达62.9mg/g,吸附等温线符合langmuir和freundlich等温吸附模型。热力学研究表明,该吸附是吸热自发过程,回收率随着铀量的增加而逐步减小,吸附铀的钛纳米管比未吸附铀的比表面积小。
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