| ZnO/TiO2纳米管复合材料的制备及光电化学性能研究 | |
| Preparation and Photoelectric Performance of ZnO/TiO2 Nanocomposites | |
| 摘要: 采用电化学阳极氧化法制备TiO2纳米管，然后用光化学沉积法在TiO2纳米管表面沉积ZnO纳米颗粒制备ZnO/TiO2纳米复合材料。对样品进行了Raman谱、XRD和SEM 表征，通过测定光电流-时间(I-t)和开路电压-时间(OCPT)曲线对ZnO/TiO2纳米复合材料的光电化学性能进行研究。结果表明，沉积ZnO没有改变TiO2的相结构；复合ZnO提高了TiO2的光电性能；在Zn(NO3)2浓度为10-3 mol·L-1的条件下制得的ZnO/TiO2纳米复合材料具有较好的光电性能。 | |
| 关键词: ZnO/TiO2纳米复合材料 光化学沉积 光电性能 | |
| 基金项目: | |
| Abstract: TiO2 nanotube arrays were fabricated by electrochemical anodic oxidation method, then ZnO nanoparticles were deposited on the surface of TiO2 nanotube by optical chemical deposition technique to get ZnO/TiO2 nanocomposites. Samples were characterized by Raman and XRD spectroscopies, and SEM. The photoelectrochemical performance of the samples was estimated by testing their open circuit photo-potential vs time (OCPT) and photocurrent vs time (I-t). It was found that the deposition of ZnO nanoparticle didn′t change the crystalline phase of TiO2; photoelectric performance of TiO2 nanotube was enhanced by combined with ZnO nanoparticles and the sample fabricated by immerging TiO2 nanotube in 10-3 mol·L-1 Zn(NO3)2 aqueous solution displayed optimal photoelectric performance. | |
| Keywords: ZnO/TiO2 nanocomposite photochemical deposition technique photoelectric performance | |
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| 李 平,路海霞,覃礼钊,梁 宏,聂 明,李 元.ZnO/TiO2纳米管复合材料的制备及光电化学性能研究[J].无机化学学报,2012,28(9):1855-1860. | |
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