| Zr掺杂K_2La_2Ti_3O_(10)制备及光催化性能研究 | |
| 张淑青 ; 孙巍 ; 毛宗强 ; 邱海鸥 ; ZHANG Shu-qing ; SUN Wei ; MAO Zong-qiang ; QIU Hai-ou | |
| 2010-05-13 ; 2010-05-13 | |
| 关键词 | K_2La_2Ti_3O_(10) 聚合-络合法 Zr掺杂 光催化 K_2La_2Ti_3O_(10) polymerized complex method(PC) Zr-doping photocatalysis O643.36 |
| 其他题名 | Study on preparation and photocatalytic properties of Zr-doped K_2La_2Ti_3O_(10) |
| 中文摘要 | 以钛酸四丁酯、碳酸钾、硝酸镧、氧氯化锆为原料,采用聚合-络合法制备出了新型的Zr掺杂改性的纳米复合物K2La2Ti3-xZrxO10,通过X射线衍射(XRD)、紫外可见漫反射(DRS)、比表面(BET)以及光致发光(PL)测试对其晶体结构和光学性质进行了表征。以乙醇为电子给体,比较了Zr掺杂量对催化剂光解水活性的影响。结果表明,通过低浓度Zr的掺杂,载Pt后光催化活性得到了大大地提高。Zr掺杂量x=0.2时获得比表面为18.72m2/g的纳米颗粒具有最好的光催化活性,测得其5h内在乙醇溶液中的产氢量子效率为2.69%。; Zr-doped nanocompound K2La2Ti3-xZrxO10 was prepared by the polymerized complex method with butyl titanate,potassium carbonate,sodium nitrate and zirconium oxycloride as the raw materials.The crystal structure and optical property of the powder were characterized by means of X-ray diffraction(XRD),ultraviolet-visible diffuse reflection spectroscopy(DRS),BET and photoluminescence(PL).The influence of concentration of doped Zr on the photocatalytic reactivity for hydrogen production was studied while ethanol was used as electron donor.The results showed that the performance of Pt/K_2La_2Ti_3O_(10)doped by low concentration Zr was received great improvement.The nanophotocatalyst with the specific surface area of 18.72m2/g behaved the best photocatalyed activity that the quantum yield for H2 evolution was 2.69% in aqueous ethanol solution in 5h while the amount of doped Zr was x=0.2. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/29972]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 张淑青,孙巍,毛宗强,等. Zr掺杂K_2La_2Ti_3O_(10)制备及光催化性能研究[J],2010, 2010. |
| APA | 张淑青.,孙巍.,毛宗强.,邱海鸥.,ZHANG Shu-qing.,...&QIU Hai-ou.(2010).Zr掺杂K_2La_2Ti_3O_(10)制备及光催化性能研究.. |
| MLA | 张淑青,et al."Zr掺杂K_2La_2Ti_3O_(10)制备及光催化性能研究".(2010). |
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