[交流] 【请教】实验过程中表面活性剂的用量

Originally posted by 妮欧 at 2010-10-16 11:00:15:
一般是加入原料的

Originally posted by 志在远方 at 2010-10-16 19:36:53:
需表面活化原料的25%左右为佳。。。当然也得看是那种表面活化剂。

Originally posted by Foxeran at 2010-10-16 15:33:37:
查查文献看别人的参数不就清楚了，这个没有一定比例吧。你目的是什么呢？合成？形貌控制？促进分散？如果是完全新的实验，需要调试浓度的。如果只纳米颗粒，你先从多点开始加就行了。

Originally posted by Foxeran at 2010-10-18 16:39:59:
0.003 mol of Zn(NO3)2â6H2O and 0.06 mol of NaOH
were dissolved in 5 mL of deionized distilled water, and 2 g of
poly ethylene glycol (PEG 2000 for synthesis of ZnO nanotubes
and PEG 20 ...

Originally posted by lishouligood at 2010-10-20 11:04:55:

以前做的，我一般加等摩尔量的，看看形貌再逐次减少，减少时0.01mol的减，这也与CMC有关