One-Pot in Situ Hydrothermal Growth of BiVO(4)/Ag/rGO Hybrid Architectures for Solar Water Splitting and Environmental Remediation.
One-Pot in Situ Hydrothermal Growth of BiVO(4)/Ag/rGO Hybrid Architectures for Solar Water Splitting and Environmental Remediation.
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BIVO的一汤匙原位热液生长(4)/Ag/rgo杂交体系结构用于太阳能水分和环境修复。
DOI:
10.1038/s41598-017-08912-z
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发表时间:
2017-08-21
影响因子:
4.6
通讯作者:
Ryu SW
中科院分区:
文献类型:
--
作者:
Patil SS;Mali MG;Hassan MA;Patil DR;Kolekar SS;Ryu SW
BiVO4 is ubiquitously known for its potential use as photoanode for PEC-WS due to its well-suited band structure; nevertheless, it suffers from the major drawback of a slow electron hole separation and transportation. We have demonstrated the one-pot synthesis of BiVO4/Ag/rGO hybrid photoanodes on a fluorine-doped tin oxide (FTO)-coated glass substrate using a facile and cost-effective hydrothermal method. The structural, morphological, and optical properties were extensively examined, confirming the formation of hybrid heterostructures. Ternary BiVO4/Ag/rGO hybrid photoanode electrode showed enhanced PEC performance with photocurrent densities (J ph) of ~2.25 and 5 mA/cm2 for the water and sulfate oxidation, respectively. In addition, the BiVO4/Ag/rGO hybrid photoanode can convert up to 3.5% of the illuminating light into photocurrent, and exhibits a 0.9% solar-to-hydrogen conversion efficiency. Similarly, the photocatalytic methylene blue (MB) degradation afforded the highest degradation rate constant value (k = 1.03 × 10−2 min−1) for the BiVO4/Ag/rGO hybrid sample. It is noteworthy that the PEC/photocatalytic performance of BiVO4/Ag/rGO hybrid architectures is markedly more significant than that of the pristine BiVO4 sample. The enhanced PEC/photocatalytic performance of the synthesized BiVO4/Ag/rGO hybrid sample can be attributed to the combined effects of strong visible light absorption, improved charge separation-transportation and excellent surface properties.
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