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nmjp219

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[求助] Fe3O4 包覆TiO2时的问题

请问大家,我水热合成Fe3O4以后,也经过了洗涤的步骤,在进行下一步包Ti时Fe3O4的量应该准确得到才对,可问题是干燥了以后称重是准确了,但再分散好像我个人感觉团聚的有点严重影响了下一步;不干燥湿着怎么称也不能准确得到它的量,如果估算其值那以后就不好重复了,我看文献说是洗完配成溶液,但也是知道浓度的,不知道是怎么做的,这个问题只要是在包覆的时候就存在,即使是包Si,大家有什么办法,谢谢!
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