Z-Scheme over all Water Splitting on Rh/K4Nb6O17 Nanosheets Photocatalyst

Hsin Yu Lin; Yu Lin Ye

doi:10.4028/www.scientific.net/AST.99.3

Paper Titles

Preface

Z-Scheme over all Water Splitting on Rh/K₄Nb₆O₁₇ Nanosheets Photocatalyst
p.3

Bismuth Vanadate-Based Photoelectrodes for Photoelectrochemical Water Splitting: Synthesis and Characterisation
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Grafting of TiO₂ on PMMA Film and Reusability in Photodegradation of Organic Dye
p.17

Photocatalytic Activation of TiO₂ Biomaterials by UV and X-Rays
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Investigating the Selective Behaviour of CuO in Gas Sensing Applications
p.33

Sensitivity and Selectivity of SnO₂-Based Sensor for CO and H₂ Detections: A Novel Method to Detect Simultaneously the CO and H₂ Concentrations
p.40

Enhanced Gas Sensing Properties of Different ZnO 3D Hierarchical Structures
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Green Synthesis of Biopolymer-Silver Nanocomposites for Gas Sensing
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HomeAdvances in Science and TechnologyAdvances in Science and Technology Vol. 99Z-Scheme over all Water Splitting on Rh/K4Nb6O17...

Z-Scheme over all Water Splitting on Rh/K₄Nb₆O₁₇ Nanosheets Photocatalyst

Abstract:

Developing a photocatalysis system to generate hydrogen from water is a topic of great interest for fundamental and practical importance. In this study, hydrogen production by a new Z-scheme photocatalysis water splitting system was examined over Rh modified K₄Nb₆O₁₇ nanosheets and Pt/WO₃ photocatalysts for H₂ evolution and O₂ evolution with I^-/IO₃^- electron mediator under UV light irradiation. The H₂ evolution photocatalyst, Rh/K₄Nb₆O₁₇ nanosheets with a slit like framework, was prepared by exfoliation of and proton exchange reaction. Pt/WO₃ prepared by incipient-wetness impregnation method was used as O₂ evolution photocatalyst. The catalysts were characterized by powder X-ray diffraction (XRD), X-ray photoelectron spectroscopy analysis (XPS), and ultraviolet-visible spectroscopy (UV-vis). These catalysts characterized by powder X-ray diffraction (XRD), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and ultraviolet-visible spectroscopy (UV-Vis). In this study, we developed a facile method of preparing K₄Nb₆O₁₇ nanosheets containing Rh nanoparticles. Our results show that I^- concentration and pH of reaction solution significantly influenced the photocatalytic activity. The combination of Rh modified K₄Nb₆O₁₇ nanosheets with Pt/WO₃ achieves a very high photoactivity (H₂: 4240 O₂: 1622 (μmol g^-1h^-1)).

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Advances in Science and Technology (Volume 99)

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3-8

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https://doi.org/10.4028/www.scientific.net/AST.99.3

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October 2016

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Hsin Yu Lin*, Yu Lin Ye

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Hydrogen Production, K₄Nb₆O₁₇ Nanosheets, Water Splitting, Z-Scheme

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