A facile room-temperature synthesis of three-dimensional coral-like Ag.sub.2S nanostructure with enhanced photocatalytic activity

Morphology is a crucial factor in determining the chemical, optical, and electrical properties of nanoscale materials. In this work, we utilized a facile room-temperature deposition method to synthesize three-dimensional (3D) coral-like Ag.sub.2S nanostructures. The formation mechanism of 3D coral-l...

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Bibliographic Details
Published in:Journal of materials science 2019-02, Vol.54 (4), p.3174
Main Authors: Yuan, Ling, Lu, Shuangwei, Yang, Feng, Wang, Yushu, Jia, Yongfang, Kadhim, Mayameen S, Yu, Yanmei
Format: Article
Language:English
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Summary:Morphology is a crucial factor in determining the chemical, optical, and electrical properties of nanoscale materials. In this work, we utilized a facile room-temperature deposition method to synthesize three-dimensional (3D) coral-like Ag.sub.2S nanostructures. The formation mechanism of 3D coral-like Ag.sub.2S nanostructures was proposed by tracking the reaction process. In comparison with 0D Ag.sub.2S nanoparticles and 1D Ag.sub.2S nanowires of similar size, 3D coral-like Ag.sub.2S nanostructures exhibit higher pore volume, photocatalytic activity and cyclic stability for degradation of methyl orange (MO). Surface photovoltage measurement, electrochemical impedance spectroscopy, and Mott-Schottky analysis showed that compared to other Ag.sub.2S nanostructures, 3D coral-like Ag.sub.2S nanostructures have the strongest surface photovoltaic response, longest carrier lifetime, and highest carrier density.
ISSN:0022-2461
1573-4803
DOI:10.1007/s10853-018-3051-4