The samples of CaTiO

3

:Pr

3+

Zn

2

TiO

4

:Pr

3+

Ca

0.7

Zn

0.3-x

Cd

x

TiO

3

:Pr

3+

(x=0.01

0.03

0.05

0.07

0.09

0.1)were synthesized by the conventional solid state reaction.XRD measurements confirmed that the prepared CaTiO

3

:Pr

3+

and the Zn

2

TiO

4

:Pr

3+

belonged to orthorhombic structure according with JCPDS Card(42-423)and cubic structure according with JCPDS Card(25-1164)

respectively.The XRD profile of the Ca

0.7

Zn

0.3-x

Cd

x

TiO

3

:Pr

3+

(x=0.01

0.03

0.05

0.07

0.09

0.1)showed the two phases which were CaTiO

3

:Pr

3+

and Zn

2

TiO

4

:Pr

3+

respectively.The excitation spectra of CaTiO

3

:Pr

3+

were located at 150~350 nm

and composed of two continuous zone:the first one originated about 230 nm

the second one originated around 321 nm.Both hailed from the absorption of the transition O(2p)Ti(3d).The excitation spectra of Zn

2

TiO

4

:Pr

3+

around 324 nm differed from that of CaTiO

3

:Pr

3+

and the excitation spectra of Ca

0.7

Zn

0.3

TiO

3

:Pr

3+

showed the characteristics of both the CaTiO

3

:Pr

3+

and the Zn

2

TiO

4

:Pr

3+

which indicated the effect of substitution or partial substitution of Zn for Ca on the luminescent properties of CaTiO

3

:Pr

3+

.In contrast with the Ca

0.7

Zn

0.3

TiO

3

:Pr

3+

the excitation spectra of Ca

0.7

Zn

0.3-x

Cd

x

TiO

3

:Pr

3+

(x=0.01

0.03

0.05

0.07

0.09

0.1)were intensified at the narrow peak about 324 nm

which indicated the effect of partial substitution Cd for Zn on the luminescent properties of Ca

0.7

Zn

0.3

TiO

3

:Pr

3+

.The all emission spectra have a sharp peak of Pr

3+

at about 612 nm characterizing the transition of

1

D

2

3

H

4

of Pr

3+

.The intensity of emission peaks of Ca

0.7

Zn

0.3-x

Cd

x

TiO

3

:Pr

3+

(x=0.01

0.03

0.05

0.07

0.09

0.1)was increased with increasing of x value when the x was in the range of 0.01～0.07.