Journal of Physical Chemistry C
Journal of Physical Chemistry C
5 years ago

Nature-Mimic ZnO Nanoflowers Architecture: Chalcogenide Quantum Dots Coupling with ZnO/ZnTiO3 Nanoheterostructures for Efficient Photoelectrochemical Water Splitting

Nature-Mimic ZnO Nanoflowers Architecture: Chalcogenide Quantum Dots Coupling with ZnO/ZnTiO3 Nanoheterostructures for Efficient Photoelectrochemical Water Splitting
Ruixiang Xia, Asad Ali, Jiangluqi Song, Lixin Zhu, Zengming Zhang, Wenting Zhang, Siyu Yang, Xiaoliang Xu, Xiaodong Li
We prepared novel photoanodes structured as FTO/ZnO nanoflowers/ZnTiO3/CdS/CdTeS/ZnS quantum dots (QDs) with highly exposed large specific area and energy coupling. The design of the photoanode expressed significant enhanced photoelectrochemical (PEC) performance such as improved absorption efficiency, reduced recombination rate, and enhanced charge transportation state, resulting in a significant increase in photoelectron current. The multinanoheterostructures photoanode provides a high photocatalytic activity and a maximum photocurrent density up to 9.41 mA/cm2 under AM 1.5 G illumination. The novel cosensitized multinanoheterostructures photoanodes lead to a remarkable and promising application in photoelectrochemical and water splitting reactions.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcc.7b04701

DOI: 10.1021/acs.jpcc.7b04701

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