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化工学报  2014 

膜电解蚀刻废液制备硅藻土基纳米氢氧化铜可湿性粉剂

DOI: 10.3969/j.issn.0438-1157.2014.04.051, PP. 1531-1536

Keywords: 纳米粒子,氢氧化铜,沉淀,含铜蚀刻废液,,电解

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Abstract:

以含铜蚀刻废液经膜电解后的阳极液为原料,在水相溶液中制备硅藻土基纳米氢氧化铜可湿性粉剂,并探讨了NaOH加入量、硅藻土加入量以及稳定剂对纳米Cu(OH)2制备的影响,并确定了最佳工艺条件(膜电解阳极液15ml、2mol·L-1的NaOH溶液45ml、粒径为44mm的硅藻土1.6g、5%的磷酸三丁酯溶液100ml),同时运用扫描电镜(SEM)、透射电镜(TEM)和X射线衍射仪(XRD)等检测手段对最优工艺条件下合成的粉剂进行了表征。在上述最优工艺条件下所制备的硅藻土基纳米Cu(OH)2产品中OH-与Cu2+的摩尔比为1.872,纯度为93.60%,悬浮率为66.03%,产品粒径为45nm,满足商品纳米Cu(OH)2可湿性粉剂的性能要求。实验结果表明该制备工艺操作方便、简单可行,是实现蚀刻废液再生利用的有效方法,具有一定的应用价值。

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