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Synthesis of ZnSe/ZnO Nanobelts for Enhanced Visible Light Photocatalytic Activity

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ZnSe/ZnO nanobelts on Zn substrate are successfully fabricated through a simple hydrothermal treatment of the precursor ZnSe(en)0.5 (en = ethylenediamine) nanobelts. Their structures and optical properties are characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), UV-visible diffuse reflection spectroscopy and photoluminescence (PL). Their possible formation mechanism is proposed, and their photocatalytic activity is studied. They have shown superior activity in photodegradation of organic pollutant rhodamine B (RhB) aqueous solution under visible light irradiation over pure ZnSe nanobelts. Their remarkable activity is attributed to fast separation and transport of photogenerated electron–hole pairs in the ZnSe/ZnO heterostructure. In addition, ZnSe/ZnO nanobelts have a good photocatalytic stability during the oxidation of the pollutant molecules.
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Keywords: NANOBELTS; PHOTOCATALYSIS; ZNO; ZNSE; ZNSE/ZNO

Document Type: Research Article

Publication date: September 1, 2018

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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