Hi Bahram,
a rather simple route to prepare anatase is to hydrolyse a Ti-containing alkoxide such as titanium isopropoxide (Ti[OC3H7]4, TTIP) in water. A white precipitate will form in the originally clear solution. If you dry the precipite - which is amorphous TiO2 - and carefully heat it in ambient air up to 350-450 °C for 2-4 hours, you will end up with anatase nanoparticles of about 15-20 nm in size. You should not increase the temperature to more than 450°C because then the probability to form rutile will increase.
Good luck, best regards, Dirk
thanks Dirk
i worked this method but with mineral support.anatase phase will form at 450 c but my composite is sensetive to heat.
i want to make it at room temperature because my support is polymer now. i found this article but i couldnt download it.
(Room-temperature preparation of crystalline TiO2 thin films and their applications in polymer/TiO2 hybrid optoelectronic devices, and url is : http://www.sciencedirect.com/science/article/pii/S1566119911000838 )
thanks again my friend.
Good luck
- Badges
- Science topic
- Similar topics
- Chemistry
- Organic Chemistry