کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
50054 | 46778 | 2015 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Enhancing the photocatalytic activity of CdS nanorods for selective oxidation of benzyl alcohol by coating amorphous TiO2 shell layer Enhancing the photocatalytic activity of CdS nanorods for selective oxidation of benzyl alcohol by coating amorphous TiO2 shell layer](/preview/png/50054.png)
• 1D core–shell structural CdS@TiO2 was fabricated by a sol–gel method.
• Thickness of TiO2 shell layer can be tuned by changing the additional amount of ammonia.
• a-TiO2 shell layer promotes the separation of electron–hole pairs.
• CdS@a-TiO2 showed improved activity for selectively oxidizing benzyl alcohol.
One dimension (1D) core–shell structural CdS@TiO2 was fabricated by a modified sol–gel method. The thickness of amorphous TiO2 (a-TiO2) layer was adjusted by changing the amount of ammonia. Although a-TiO2 shell layer diminishes the visible light absorption in a certain extent, it largely increases the surface area of photocatalyst and effectively promotes the separation rate of photogenerated electron–hole pairs. It was revealed that a-TiO2 shell layer can effectively enhance the photocatalytic activity of CdS NRs for benzyl alcohol (BA) to benzaldehyde (BAD) transformation. Moreover, the core–shell structural CdS@a-TiO2 showed high stability and reusability for the selective oxidation of BA.
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Journal: Catalysis Communications - Volume 70, 5 October 2015, Pages 30–33