电子元件与材料2017，Vol.36Issue(3)：48-53,58,7.DOI:10.14106/j.cnki.1001-2028.2017.03.010
基于Pt/GQDs双掺杂的TiO2介孔复合材料制备及其光学与传感性能
Preparation of Pt/GQDs doped TiO2 composite mesoporous materials for sensing application
摘要
Abstract
Pt/GQDsdoped TiO2 sensing materials for detecting volatile organic compounds(VOCs) were prepared by a sol-gel method. As-synthsized Pt/GQDs-TiO2 composites were characterized and analyzed by UV-Vis,TEM, PL, and XRD. The additions of GQDs made the Pt/GQDs-TiO2 composites shift the absorption to the wider visible region, and enhances the sensitivity of the composite materials to VOCs at room temperature.The Pt/GQDs-TiO2 composites were calcined at different temperatures,and the response of Pt/GQDs-TiO2 composites to different VOCs gases were measured at room temperature.The results show that the 300℃ calcined Pt/GQDs-TiO2 composites exhibite best sensing performance to isopropanol vapor at room temperature,and the response time and the recovery timeare reduced to 15s and 53s, respectively.关键词
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Key words
Pt/GQDs/TiO2/gas sensor/VOCs/mesoporous materials分类
通用工业技术引用本文复制引用
吴涛,邵绍峰,饶伟锋..基于Pt/GQDs双掺杂的TiO2介孔复合材料制备及其光学与传感性能[J].电子元件与材料,2017,36(3):48-53,58,7.基金项目
国家自然科学基金资助(No. 11474167) （No. 11474167）
NUIST人才引进基金资助(No. 2241091301028) （No. 2241091301028）
