Nano ZnO was a kind of fluorescence materials with high exciton binding energy and wide direct gap.But as the red fluorescence materials

it needed to be improved such as luminescent efficiency and color purity.It can be solved effectively by doping extraneous ingredients.Most methods of preparing nano-ZnO were complex and high energy consume.The aim of this article is to find a kind of green synthesis method of nano-ZnO with high luminescent efficiency and color purity.The red fluorescence powders were obtained by doping Eu ion because of its narrow band emission character

so it can be easily industrialized.The samples were prepared by finely grinding and mixing Eu(NO

3

)·6H

2

O and Zn(CH

3

COO)

2

·2H

2

Oin an agate mortar.Via mechanical solid-phase reaction

chemical reactions and physical processes were accelerated between reactants.So precursors powder were obtained with less granularity

and nano-ZnO:Eu

3+

powders were prepared by mixed precursors decomposing at 900℃.The characteristics of samples were investigated by means of TG-DSC

XRD

SEM

TEM.Results showed that the obtained powder exhibits a normal size distribution

whose size is about 80 nm.while the maximum emission spectra peak is at λ

em

=615 nm with 465 nm excitation

corresponding to

5

D

0

→

7

F

2

transition.