一种激光法合成的NiO纳米立方体颗粒的提纯方法

Purification method of NiO nanocube particles synthesized with laser method

Abstract

The invention discloses a purification method of NiO nanocube particles synthesized with a laser method. The purification method achieves separation and purification of nickel particles in different sizes in a NiO nanocube particle mixture prepared with the existing laser method. The purification method comprises the steps that the nickel particles with larger particle sizes in a synthetic product are removed with a millipore filtration method; the nickel particles with the smaller particle sizes in the NiO nanocube particles are removed through iron absorption while a stirrer is used for stirring; low-temperature drying is conducted; moisture is removed; the high-purity NiO nanocube particles are obtained; and a product recovery rate is 97.5%. The purification method is simple in technology, low in equipment requirement, and high in product purity, and does not generate toxic waste liquid, and the nickel particles in different sizes can be recycled. The NiO nanocube particles purified with the purification method can be applied to the fields of catalysis, electrode materials and the like.
本发明公开了一种激光法合成的NiO纳米立方体颗粒的提纯方法,首次解决了现有激光法制备的NiO纳米立方体颗粒混合物中,不同尺寸镍颗粒的分离与提纯问题。首先,利用微孔过滤法去除合成产物中粒径较大的镍颗粒;再利用搅拌器搅拌的同时利用铁吸附去除NiO纳米立方体颗粒中粒径较小的镍颗粒;再低温干燥,去除水分,获得高纯度NiO纳米立方体颗粒,产品回收率为97.5%。本发明工艺简单,设备要求低,产品纯度高,不产生有毒废液,且不同尺寸金属镍颗粒可以回收再利用。利用本发明提纯的NiO纳米立方体颗粒能够满足例如催化、电极材料等领域的应用。

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