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小鱼和小透

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专业: 胶体与界面化学

[求助] 纳米四氧化三铁负载金属镍问题已有2人参与

Ferrite magnetic nanoparticles
Fe3O4 (2 g) and NiCl2·6H2O (10 wt% of nickel on ferrite) were stirred at
room temperature in aqueous solution for 1 h. After impregnation, the
suspension was adjusted to pH 12 by adding sodium hydroxide (0.5m)
and stirred for 10 to 12 h. The solid was washed by distilled water (5
10 mL). The obtained metal precursors were reduced by adding an aqueous
solution of 0.2m NaBH4 dropwise under gentle stirring in an ice–
water bath for 30 min until no bubbles were observed in the solution.
The resulting Fe3O4Ni MNPs were ultrasonicated for 10 min and then
washed with distilled water and subsequently with ethanol. The synthesized
Fe3O4Ni MNPs were characterized by several techniques such as
XRD, ICP-AES, TEM, and FEG-SEM-EDS.，请问这里面的硼氢化钠应该怎么处理？我直接配制的硼氢化钠溶液加到溶液中去，没有得到理想效果。

[ Last edited by liwentao2010 on 2015-3-18 at 18:37 ]

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