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壳聚糖/羟基磷灰石复合材料对Cu2+的吸附性能

Environmental Science & Technology(2014)

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Abstract
文章采用乳化交联法成功地制备出形貌好去除Cu2+能力强的壳聚糖/羟基磷灰石复合材料,用SEM对其形貌进行了表征并研究了其对水体中Cu2+的吸附行为.SEM扫描结果显示:复合材料为表面粗糙、粒径为微米级的规则球形颗粒,并有类网球的结构;实验结果表明:复合材料在Cu2+溶液中180 min时达到吸附平衡,吸附能力明显强于改性前的壳聚糖单体的吸附能力,吸附符合准二级动力学方程和Freundlich等温吸附模型.
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