| 硫化镉/石墨烯/TiO_2纳米棒阵列的光电化学性能 |
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| 引用本文： | 张亚萍,黄承兴,董开拓,张志萍,于濂清,李焰.硫化镉/石墨烯/TiO_2纳米棒阵列的光电化学性能[J].中国石油大学学报(自然科学版),2016,40(3):175-179. |
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| 作者姓名： | 张亚萍 黄承兴 董开拓 张志萍 于濂清 李焰 |
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| 作者单位： | 中国石油大学理学院,山东青岛 266580,中国石油大学理学院,山东青岛 266580,中国石油大学理学院,山东青岛 266580,中国石油大学理学院,山东青岛 266580,中国石油大学理学院,山东青岛 266580,中国石油大学机电工程学院,山东青岛 266580 |
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| 基金项目： | 国家自然科学基金项目(21476262);青岛市科技发展计划项目(14-2-4-108-jch);中央高校基本科研业务费专项(15CX05032A) |
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| 摘 要： | 采用水热法在掺氟导电玻璃(FTO)上生长TiO_2纳米棒阵列。通过电化学伏安法将氧化石墨烯还原并沉积在TiO_2纳米棒阵列上,再经过化学水浴沉积硫化镉,形成Cd S/石墨烯/TiO_2阵列复合材料。用X射线衍射仪、扫描电子显微镜及X射线能量色散仪对样品的晶型、形貌以及成分进行分析。通过电化学工作站表征样品交流阻抗、开路电位、光电流响应及光化学能转换效率。结果表明,复合材料的电荷转移电阻约是未修饰的TiO_2纳米棒阵列的1/17,光电流比未修饰的TiO_2纳米棒阵列提高约2.5倍,在外加电压为-0.6 V时可达到2.2%。
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| 关 键 词： | TiO2纳米棒 硫化镉 石墨烯 光电化学性能 |
| 收稿时间： | 2015/10/22 0:00:00 |
Photoelectrochemical properties of CdS/graphene /TiO2 nanorod arrays |
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| ZHANG Yaping,HUANG Chengxing,DONG Kaituo,ZHANG Zhiping,YU Lianqing and LI Yan.Photoelectrochemical properties of CdS/graphene /TiO2 nanorod arrays[J].Journal of China University of Petroleum,2016,40(3):175-179. |
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| Authors: | ZHANG Yaping HUANG Chengxing DONG Kaituo ZHANG Zhiping YU Lianqing and LI Yan |
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| Institution: | College of Science in China University of Petroleum, Qingdao 266580, China,College of Science in China University of Petroleum, Qingdao 266580, China,College of Science in China University of Petroleum, Qingdao 266580, China,College of Science in China University of Petroleum, Qingdao 266580, China,College of Science in China University of Petroleum, Qingdao 266580, China and College of Mechanical and Electrical Engineering in China University of Petroleum, Qingdao 266580, China |
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| Abstract: | Titanium dioxide nanorod arrays were prepared by hydrothermal method on FTO glass substrate. Graphene oxide was reduced by electrochemical voltammetric method and electro-deposited on the TiO2 nanorod arrays, then chemical deposition CdS on the TiO2 nanorod arrays was carried out. The obtained sam ples were analyzed by X-ray diffraction (XRD),scanning electron microscope (SEM) and energy dispersive X-ray detector . Photoconversition efficiency, electrochemical impedance spectroscopy, open-circuit potential response and photocurrent response of the samples were analyzed by electrochemical workstation. The results show that the charge transfer resistance of material is approximately 1/17 after CdS/graphene modification, the photocurrent increases by 2.5 times, and the photoconversition efficiency can reach 2.2% under the applied voltage of -0.6 V. |
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| Keywords: | TiO2 nanorod CdS graphene photoelectrochemical properties |
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