The photocatalytic hydrogen production from aqueous methanol solution using titanium dioxide （TiO2） was investigated in the addition of metal particles including copper, lead, tin, and zinc. The results show that on...The photocatalytic hydrogen production from aqueous methanol solution using titanium dioxide （TiO2） was investigated in the addition of metal particles including copper, lead, tin, and zinc. The results show that only the addition of copper particles enhances the hydrogen production. The copper usage and reaction temperature were further optimized for TiO2/Cu photocatalyts. Under the optimal conditions, the hydrogen production using TiO2/Cu as photocatalysts is approxi- mately 68 times higher than that obtained with only TiO2.展开更多
通过溶剂热法制备了具有良好结晶度的Sr Ti O_3晶体,再通过水热法制备出不同比例的n(Sr TiO_3)∶n(ZnxCd1-xS)异质结光催化材料,随后调整x的值(0、0.2、0.4、0.5、0.6、0.8、1)制备出不同n(Zn)∶n(Cd)的系列样品。通过X射线衍射(XRD),...通过溶剂热法制备了具有良好结晶度的Sr Ti O_3晶体,再通过水热法制备出不同比例的n(Sr TiO_3)∶n(ZnxCd1-xS)异质结光催化材料,随后调整x的值(0、0.2、0.4、0.5、0.6、0.8、1)制备出不同n(Zn)∶n(Cd)的系列样品。通过X射线衍射(XRD),扫描电子显微镜(SEM),透射电子显微镜(TEM),X射线光电子能谱(XPS),紫外-可见(UV-Vis)分光光谱等技术对系列样品进行物理表征。通过可见光下光解水制氢的产量进行光催化性能的测试,结果表明:Sr TiO_3和ZnxCd1-xS复合之后,能够形成良好的异质结体系,有效增强其光解水制氢性能,其中n(Sr TiO_3)∶n(Zn0.6Cd0.4S)=1∶5的异质结材料表现出最好的可见光光解水制氢性能,循环稳定后氢气产率为5 300μmol/(g·h)。展开更多
基金financially supported by the National Natural Science Foundation of China(31202117 and 51972185)the Natural Science Foundation of Shandong Province(ZR2020ZD38)。
文摘The photocatalytic hydrogen production from aqueous methanol solution using titanium dioxide （TiO2） was investigated in the addition of metal particles including copper, lead, tin, and zinc. The results show that only the addition of copper particles enhances the hydrogen production. The copper usage and reaction temperature were further optimized for TiO2/Cu photocatalyts. Under the optimal conditions, the hydrogen production using TiO2/Cu as photocatalysts is approxi- mately 68 times higher than that obtained with only TiO2.
