郝殿中,韩培高,牛明生.膜厚对Ag-TiO2薄膜光学性能和光催化性能影响的研究[J].光电子激光,2018,29(1):52~56 |
膜厚对Ag-TiO2薄膜光学性能和光催化性能影响的研究 |
Effects of film thickness on optical performance and photocatalytic ability of A g-TiO2thin films |
投稿时间:2017-05-03 |
DOI: |
中文关键词: 薄膜 二氧化钛(TiO2) 银(Ag) 光催化 电子束沉积技术 掺杂 |
英文关键词:thin films TiO2 Ag photocatalysis electron beam technology doped |
基金项目:国家青年自然科学基金项目(11104160)和曲阜师范大学实验室开放基金资助项目 (曲阜师范大学 激光研究所,山东省激光偏光与信息技术重点实验室,山东 曲阜 273165) |
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中文摘要: |
采用电子束沉积方法制备了Ag-TiO2光催化剂 ,采用电子扫描显微镜(SEM)、X射线衍射仪(XRD)、透 射电镜(TEM)、紫外-可见(UV-Vis)光谱仪和原子力显微镜(AFM)等手段对薄膜的形貌、物 相 组成,吸收光谱和粗糙度进 行了表征。利用太阳光,以甲基橙(MO)为模拟污染物,考察光催化剂的光催化活性,探讨了薄 膜厚度对光催化 效率的影响。结果表明,在300℃温度下,所形成的薄膜 为无定形结构 ;当薄膜厚为570nm时,降解40days后,MO的降 解率达到55%。 |
英文摘要: |
In this study,Ag-TiO2films were fabricated by electron beam evap oration.The as-prepared composite Ag-TiO2films are characterized by scanning electron micros copy (SEM),transmission electron microscope (TEM),X-ray diffraction (XRD),atomic force microscopy (AFM) and UV- Vis spectrometer to determine the morphology,phase components,absorption spectrum and roughness,respectively. With methyl orange as the model pollutant,the photocatalytic activity is studied to investigate the influ ence of film thickness on the photocatalysis under the sunlight.The research res ults indicate that the Ag-TiO2films are amorphous at 300℃ and the degradation rate of MO reaches 55% for 40days when the film thicknes s is 570nm. |
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