[knsanthosh]

How can we separate nano zinc oxide from its aqueous slurry?
How can we make stable nano zinc oxide slurry?
Anyone can help inthese matters?

Regards

KNS

[zoork34]

can you filter it?

for the stable slurry, can you use a polymer dispersant?  That is a typical way to suspend solid particles in water. 

[knsanthosh]

can you filter it?

for the stable slurry, can you use a polymer dispersant?  That is a typical way to suspend solid particles in water. 

Is nano material filtration possible? I heard poly carbonate/membrane filtration may be possible, but do no know much about commercial availability of these membranes.
We can use Polymer dispersants.Since zinc oxide is highly reactive,choosing the exact one is very difficult.Can anyone have experience  on this?

Regards,
KNS

[zoork34]

For a first attempt, just try something simple like poly(styrenesulfonate).  It should be inert to ZnO particles and it has some dispersant qualities.   

http://www.sigmaaldrich.com/catalog/product/aldrich/243051?lang=en&region=US

[vex]

If you've got access to a centrifuge, that can help you separate your particles from your slurry. I typically spin at 3500 rpm for 5-10 minutes, rinse, and repeat. Your particles will pack nicely at the bottom of the tube. If not, your should be able to find a membrane with small enough pores to filter your particles from the slurry.