Hydrogenation and Ammoniation of SrTiO3 for an Enhanced Visible-light Photocatalysis
Hydrogenation and Ammoniation of SrTiO3 for an Enhanced Visible-light Photocatalysis
复制标题
SrTiO3 的氢化和氨化增强可见光光催化
DOI：
10.1088/1674-0068/25/01/86-90
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发表时间：
2012
影响因子：
1
通讯作者：
Ming Lu
中科院分区：
文献类型：
--
作者：
Tao Sun;You;Ming Lu
对普通紫外光催化剂SrTiO在不同温度下分别在H2：N2=5%：95%和NH3中进行了氢化和氨化反应。结果表明，在T≥90 0℃下氢化显著提高了STO的紫外光催化能力，但仍不具有可见光催化活性，而T≥80 0℃下的氨化反应引入了N掺杂，导致可见光催化活性.此外，氢化的STO经氨化后的可见光催化能力与氨化的STO几乎相同，但氨化的STO的氢化显著增强了可见光催化性能，表明氢化和氨化的协同作用。已经进行了讨论和确认，以分析这些结果。
Hydrogenation and ammoniation of SrTiO3 (STO), a normal ultraviolet photocatalyst, were performed by annealing STO〈100〉 in H2:N2=5%:95% and NH3, respectively, at various temperatures T. It was found that hydrogenation at T≥900 °C remarkably enhanced the UV photocatalytic ability of STO, but the visible-light photocatalysis was still unavailable, while ammoniation at T≥800 °C introduced the N doping, resulting in visible-light photocatalytic activity. Furthermore, when a hydrogenated STO was subjected to ammoniation, the visible-light photocatalytic ability was nearly the same as that of the ammoniated one; but the hydrogenation of an ammoniated one significantly enhanced visible-light photocatalysis, indicating a synergetic effect of hydrogenation and ammoniation. Discussions and identifications have been made to analyze these results.
影响因子：
56.9
作者：
Khan, SUM;Al-Shahry, M;Ingler, WB
通讯作者：
Ingler, WB