CdS sensitized nanoporous TiO2/CuO layer prepared by dealloying of Ti–Cu amorphous alloy
CdS sensitized nanoporous TiO2/CuO layer prepared by dealloying of Ti–Cu amorphous alloy
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DOI：
10.1016/j.matlet.2012.04.117
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发表时间：
2012-08
影响因子：
3
通讯作者：
Meng Zhang;Z. Cui;Xian-Jin Yang;Qiang Wei;Shengli Zhu
中科院分区：
文献类型：
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作者：
Meng Zhang;Z. Cui;Xian-Jin Yang;Qiang Wei;Shengli Zhu
采用无氨化学浴沉积 (CBD) 工艺在脱合金 Ti-Cu 非晶合金上制备 CdS 敏化纳米孔 TiO2/CuO 层。研究了所制备的CdS-TiO2/CuO复合材料的表面形貌和光电特性。结果表明，纳米多孔表面广泛覆盖着一层均匀的 CdS 纳米粒子，直径范围为 5 至 20 nm。 CdS的敏化和退火过程都可以增强材料的光电流。在没有偏置电位的情况下观察到最高光电流密度约为2.5mA/cm2。 Ti-Cu非晶合金结构的CdS-TiO2/CuO在光电极和光催化方面具有潜在的应用前景。
A CdS sensitized nanoporous TiO2/CuO layer was fabricated by ammonia free chemical bath deposition (CBD) process on dealloyed Ti–Cu amorphous alloy. The surface morphology and the photoelectric characterization of as-prepared CdS-TiO2/CuO composite were investigated. It is shown that the nanoporous surface is extensively covered with a uniform layer of CdS nanoparticles with diameter ranging from 5 to 20nm. Both the sensitization of CdS and the annealing process could enhance photocurrent of the material. The highest photocurrent density around 2.5mA/cm2without bias potential was observed. The CdS-TiO2/CuO structured on Ti–Cu amorphous alloy has the potential application in photoelectrodes and photocatalysis.