【作者】 张平； 余焕焕； 郭九丽； 张守民；

【Author】 Ping Zhang;Huanhuan Yu;Jiuli Guo;Shoumin Zhang;College of Chemistry Nankai University;

【机构】 南开大学化学学院；

【摘要】 在制备磷酸铋纺锤体的基础上,加入前驱体,制备不同元素掺杂的磷酸铋纺锤体,即M-BiPO₄（M=La、Ce、Fe）,并制备相应的金催化剂。通过ICP、XRD、SEM、HRTEM、UV-vis DRS、IR、XPS等手段对样品进行表征,XRD结果表明元素的掺杂并没有影响磷酸铋的晶型,SEM和HRTEM结果表明不同元素掺杂的BiPO₄基本保持了纺锤体的形貌。光催化降解甲基蓝的反应结果表明,Ce-BiPO₄表现出较高的光降解能力。与Au/BiPO₄催化剂相比,Au/M-BiPO₄（M=La、Ce、Fe）催化剂在催化CO氧化方面表现出较高的催化能力,并且它们具有较好的重复利用率和较高的高温稳定性。更多还原

【Abstract】 On the basis of the method for BiPO₄ spindle, the corresponding precursor were added, and M-BiPO₄（M= La、Ce、Fe） samples were prepared, the supported Au catalysts were also obtained. ICP、XRD、SEM、HRTEM、UV-vis DRS、IR、XPS methods were applied to ensure the properties of samples. The dopant didn’t cause any change in the diffraction peaks of BiPO₄. The images of SEM and HRTEM showed the mophology of samples were spindles. The results of photocatalytic degration of methyl blue exhibited that Ce-BiPO₄ sample showed better photocatalytic activity among the prepared samples. And Au/M-BiPO₄（M= La、Ce、Fe） catalysts showed better catalytic activity in the CO oxidation when compared with Au/BiPO₄ catalyst. They all showed no deactivation when tested their reproducibility and high-temperature stability.更多还原