纳米结构
光催化
材料科学
热液循环
纳米技术
表征(材料科学)
纳米颗粒
水热合成
纳米线
化学工程
树(集合论)
光电化学电池
电极
催化作用
化学
物理化学
数学分析
生物化学
数学
工程类
电解质
作者
Zhengxin Li,Meng Jia,Baxter Abraham,Jolie C. Blake,Daniel Bodine,John T. Newberg,Lars Gundlach
出处
期刊:Langmuir
[American Chemical Society]
日期:2017-10-13
卷期号:34 (3): 961-969
被引量:40
标识
DOI:10.1021/acs.langmuir.7b02840
摘要
Vertically aligned ZnO nanowire-based tree-like structures with CuO branches were synthesized on the basis of a multistep seed-mediated hydrothermal approach. The nanotrees form a p–n junction at the branch/stem interface that facilitates charge separation upon illumination. Photoelectrochemical measurements in different solvents show that ZnO/CuO hierarchical nanostructures have enhanced photocatalytic activity compared to that of the nonhierarchical structure of ZnO/CuO, pure ZnO, and pure CuO nanoparticles. The combination of ZnO and CuO in tree-like nanostructures provides opportunities for the design of photoelectrochemical sensors, photocatalytic synthesis, and solar energy conversion.
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