共沉淀方法制备磷酸盐纳米颗粒及其对甲基蓝吸附性能研究

来源 :2014中国溶胶-凝胶学术研讨会暨国际论坛 | 被引量 : 0次 | 上传用户:root1234789
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  本研究采用简单共沉淀方法在室温下成功制备了Ag3PO4、CaHPO4和BaHPO4磷酸盐纳米颗粒,并将其作为吸附剂用于水溶液中甲基蓝染料的去除。系统研究接触时间和甲基蓝初始浓度对上述三种吸附剂吸附效果的影响,并对吸附过程进行吸附热力学和动力学分析。结果表明:在20 min内,三种吸附剂均达到吸附平衡,对甲基蓝的吸附符合准二级动力学方程。三种磷酸盐对甲基蓝的吸附性能均满足Langmuir吸附等温线方程,其中BaHPO4对甲基蓝具有最好的吸附性能。
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