中文摘要：

CuO 被 Cu (NO3 ) 的热分解综合 2 ??  ?? 藘吗？？

英文摘要：

CuO was synthesized by thermal decomposition of Cu（NO3）2·3H2O at various temperatures and characterized by powder X-ray diffractometry（XRD） as well as scanning electron microscopy（SEM）.The effects of calcination temperature,category of sacrificial reagent,initial sacrificial reagent concentration,and Ag loading content on the photocatalytic activity of the as-obtained CuO sample were investigated.The results show that the as-obtained CuO exhibits high activity for photocatalysis of H2 evolution reaction（HER） in oxalic acid solution under simulated sunlight irradiation.The highest photocatalytic activity of the as-obtained CuO was achieved at the calcination temperature of 1000℃,and oxalic acid was used as the sacrificial reagent with the concentration 0.05 mol/L.H2 evolution rate is as high as 2.98 mmol/（h·g） with 2%（mass fraction） loaded Ag.The possible photocatalytic reaction mechanism on the CuO photocatalyst for HER in oxalic acid solution was also discussed.