The nanosized Sm-MCM (1:10) mesoporous molecular sieve was synthesized by means of sol-gel-assisted self-assembly at the interface of nonaqueous and aqueous phase with hydrolyzation reaction routine under basic conditions at room temperature. The HRTEM image shows that the samples have uniform particles with a dia-(meter) of 10~15 nm. The BET surface area

porosity and pore-size of Sm-MCM (1:10) are 621 m

2

·g

-1

)1.25cm

3

·g

-1

and 8 nm. That results of

29

Si-MAS NMR show that q

0

q

1

q

2

q

3

Q

2

Q

3

Q

4

([(SiO)

4-n

Si)-(O-Sm- )

n

(n = 4

3

2

1)

(SiO)

4-m

Si-(OH)

m

(m= 2

1

0)] at -44

-58

-67

-76

( -89

) (-107)

-110 ppm

respectively

proves that the ion of Sm

3+

has incorporated the framework of Si-O. The FTIR results show that the peaks near 970 cm

-1

are assigned to the deformation vibration of silanol group. The as-product is calcined at 800℃ and the mesoporous material possess enormous specific areas and large porosity

it shows that the mesoporous material is ultrastable. The emission spectra of Sm-MCM

vesting in the transitions

4

L

17/2

→

6

H

n/2

(n=11

13

15) of Sm

3+

ion

show that samarium ion exists in special chemical (environment) of Sm-MCM.