吴涛,邵绍峰,饶伟锋

• 1:南京信息工程大学材料物理系

摘要(Abstract)：

通过溶胶-凝胶法制备了Pt/GQDs双掺杂的TiO_2基挥发性有机化合物(VOCs)传感材料。利用紫外-可见光分光光度计(UV-Vis)、透射电子显微镜(TEM)、荧光光谱(PL)、X射线衍射仪(XRD)分别对Pt/GQDs-TiO_2复合材料进行分析和表征。GQDs的有效掺入,使Pt/GQDs-TiO_2复合材料对光的吸收从UV向更宽的可见光区域偏移,更有利于在室温条件下增强介孔材料对VOCs的传感。重点对Pt/GQDs-TiO_2复合材料进行了不同温度的焙烧处理,在室温情况下,检测了Pt/GQDs-TiO_2复合材料对不同VOCs气体的传感响应。结果表明,在焙烧温度为300℃时,Pt/GQDs-TiO_2复合材料在室温情况下对异丙醇表现出良好的传感特性,响应时间和恢复时间分别为15s和53s。

关键词(KeyWords)： 铂;石墨烯量子点;二氧化钛;气体传感器;挥发性有机化合物;介孔材料

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金资助(No.11474167);; NUIST人才引进基金资助(No.2241091301028)

作者(Author): 吴涛,邵绍峰,饶伟锋

DOI: 10.14106/j.cnki.1001-2028.2017.03.010

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