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小鱼和小透

新虫 (初入文坛)

[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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小鱼和小透

新虫 (初入文坛)

引用回帖:
8楼: Originally posted by changlinqu at 2014-07-05 17:23:58
试一下溶于冰水…或者在冰水浴条件下溶解

好的,谢谢楼主
10楼2014-07-05 19:37:51
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liwentao2010

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山涛

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【答案】应助回帖

感谢参与,应助指数 +1
方法没有什么问题,正常。不知道楼主所说效果不理想,是催化效果不好?
加油!
2楼2014-07-04 12:30:45
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小鱼和小透

新虫 (初入文坛)

引用回帖:
2楼: Originally posted by liwentao2010 at 2014-07-04 12:30:45
方法没有什么问题,正常。不知道楼主所说效果不理想,是催化效果不好?

感觉是硼氢化钠配置问题,请问怎么配制0.2M NaBH4水溶液
3楼2014-07-04 14:18:56
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liwentao2010

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引用回帖:
3楼: Originally posted by 小鱼和小透 at 2014-07-04 14:18:56
感觉是硼氢化钠配置问题,请问怎么配制0.2M NaBH4水溶液...

称取一定质量NaBH4溶于水。
加油!
4楼2014-07-04 19:38:11
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