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skyae

木虫 (正式写手)

[求助] two-solvent method浸渍法的优缺点?

最近在看浸渍法制备催化剂的资料,其中有这样一段话:So as to combine conventional stirring and the use of a low volume of precursor solution, a two-solvent method has been proposed, in which a dry hydrophilic support is first suspended into a large volume of an organic solvent with a relatively low surface tension. A volume VPT of precursor solution in water is then poured into the suspension. It moves into the pores where it replaces the organic solvent that has a lower affinity for the support surface.
我不明白这个two-solvent method到底有什么用,和传统的等体积浸渍和过量浸渍相比有什么好的?
请了解的大侠指教.

[ Last edited by skyae on 2012-5-15 at 11:45 ]
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wwt1806

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【答案】应助回帖

感谢参与,应助指数 +1
我觉得应该跟等体积浸渍法比较相似,只是应该比等体积浸渍中的水的体积更容易控制。
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2楼2012-05-15 14:17:59
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skyae

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引用回帖:
2楼: Originally posted by wwt1806 at 2012-05-15 14:17:59:
我觉得应该跟等体积浸渍法比较相似,只是应该比等体积浸渍中的水的体积更容易控制。

我想了想,可能是这样浸渍的话前驱体水溶液可以和载体在搅拌的状态下更好的接触,在保证等体积用水的情况下可以使浸渍液和载体均匀接触。你觉得呢?
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3楼2012-05-15 17:29:38
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