简介:Theperovskite-typeAgTaO3crystalswerepreparedbymildhydrothermalmethodanddeterminedbypowderX-raydiffraction.RietveldrefinementindicatesthatAgTaO3crystallizedinanorthorhombicsystemwiththespacegroupPcmn.Thelatticeparametersarea=5.5822(1)nm,b=7.8522(2)nmandc=5.5347(1)nm,withα=β=γ=90.0o.Thecompoundwascharacterizedbyscanningelectronmicroscopy(SEM),X-rayphotoelectronspectroscopy(XPS),highresolutiontransmissionelectronmicroscopy(HR-TEM)andUV-Visdiffusereflectancespectrometry(UV-VisDRS).ThephotocatalyticactivityofAgTaO3powderwasevaluatedbythedegradationofCongoredunderUV-lightirradiation.Theresultshowsthatthetitledcompoundhasahighphotocatalyticactivityatroomtemperatureandpotentialapplicationinphotocatalysis.