As a kind of important n type semiconduct with a wide band-gap (3.6 eV), SnO2 nano material has attracted much attention due to their terrific opto-electrical and gas sensitive properties and their potential applications in luminescent, optical absorbent, catalytic, gas sensor, DMS,and Li-ion battery cathodes materials. Doping and calcining are the best methods to be used to improve the properties of nanomaterials and expand the application area. Therefore it is meaningful for material scientific res...