Solvothermal synthesis and characterization of silica-pillared titanium phosphate
Abstract
Silica-pillared titanium phosphate has been synthesized from Ti(OC
4
H
9
)
4
-H
3
PO
4
-H
2
N(CH
2
)
3
Si(OC
2
H
5
)
3
-C
2
H
5
OH and characterized by XRD, SEM, IR and TGA. The synthesis conditions were investigated and the optimal conditions are reported: crystallization at 180°C for about 7 days with a batch composition of 1.0 Ti(OC
4
H
9
)
4
:3.6 H
3
PO
4
:1.0 H
2
N(CH
2
)
3
Si(OC
2
H
5
)
3
:33 C
2
H
5
OH. XRD analysis gives the lattice parameters of the monoclinic cell as a=1.99952 nm, b=0.41803 nm, c=0.90062 nm, β=97.462°, V=0.74642 nm
3
, and Z=2. N
2
adsorption-desorption test shows that the pillared compound has a BET surface area of 51 m
2
g
–1
.
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