Geoscience Reference
In-Depth Information
Figure 10.76 The schematic representation
of the formation of Nd
2
O
3
-coated titania
designer composite particulates
[338]
.
Raw material
Nd
2
O
3
titanium
source and IM
NaOH
at 10ºC/hr
heating
150ºC
Titania
particulates
raw Nd
2
O
3
and
IM NaOH
at 10ºC/hr
heating
250ºC
Dissolution of Nd
2
O
3
Titania
particulates
Repeated washing
in double distilled
water
Ultrasonicated
Nd
2
O
3
coated titania
designer particulates
Washed and dried
at 40ºC
Unagglomerated
Figure 10.77 ZnO and TiO
2
coatings on CASB.
Source: Photographs by K. Byrappa.
220
C) with autogeneous pres-
sure in the autoclave to obtain strong coating of nanocrystals of ZnO and TiO
2
having high crystallinity. This has some special advantages in that the coating is
HCl or 1 M NaOH as solvent at temperature (200
