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Abstract In this work, novel WO3(H2O)0.333/BiOI heterostructure photocatalyst was synthesized via in-situ solvothermal method. The crystal structure, morphology and optical property of as-prepared samples were investigated by X-ray diffraction (XRD),… Click to show full abstract
Abstract In this work, novel WO3(H2O)0.333/BiOI heterostructure photocatalyst was synthesized via in-situ solvothermal method. The crystal structure, morphology and optical property of as-prepared samples were investigated by X-ray diffraction (XRD), field emission electron microscope (FESEM), transmission electron microscopy (TEM), UV–Vis diffuse reflectance spectroscopy (DRS) and photoluminescence (PL) measurements. WO3(H2O)0.333/BiOI heterojunction showed excellent photocatalytic performance under visible light. The constant kapp of WO3(H2O)0.333/BiOI is 0.08599 min−1, which is 3.33 and 51.49 times greater than that of BiOI and WO3(H2O)0.333, respectively. Moreover, WO3(H2O)0.333/BiOI heterostructure also presented high photostability. Finally, the direct Z-scheme photocatalytic mechanism of WO3(H2O)0.333/BiOI was proposed.
Journal Title: Materials Letters
Year Published: 2019
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