以氨气作为氮源,硫脲作为硫源,制备N/S共掺杂SrSnO3样品.通过X射线粉末衍射仪(XRD)和X射线光电子能谱(XPS)表征确定了N、S分别是以晶格取代和间隙掺杂的形式存在于样品中.紫外漫反射光谱(DRS)表明氮硫共掺杂的样品对可见光的吸收比单掺杂要强.以罗丹明B、亚甲基蓝、橙黄Ⅱ号作为模拟废水污染物并考察了样品在可见光下降解染料的活性.实验结果表明,在氮化时间为12h,硫掺杂比为1∶1得到的N/S共掺杂SrSnO3的催化剂在可见光照射的条件下,一定浓度的罗丹明B溶液在6h内被彻底降解至无色溶液,亚甲基蓝溶液的在3h内,脱色率达到96％以上,偶氮类染料橙黄Ⅱ号在加入少量H2O2,3.5h内降解率为93％.
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