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Hierarchical Porous SnO2 Microflowers Photocatalyst

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Novel hierarchical porous SnO2 microflowers are obtained via a solvent induced and surfactant-assisted self-assembly method followed by a calcination process. The as-synthesized SnO2 microflowers consist of many porous nanorods with a length of 3 μm. A possible growth mechanism governing the formation of SnO2 microflowers was discussed by adjusting the mole ratio of SnCl2·2H2O to H2C2O4·2H2O and the volume ratio of C2H5OH to PEG400. Photocatalytic activities of SnO2 microflowers are investigated by degrading methylene blue (MB), methyl orange (MO) and rhodamine B (RhB) aqueous solution. The results reveal that the obtained SnO2 microflowers exhibit a superior photocatalytic activity and extremely high degradation efficiency, as well as good reproducibility and stability, which may be ascribed to the unique hierarchical porous flower-like microstructure.
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Keywords: HIERARCHICAL NANOSTRUCTURES; PHOTOCATALYST; POROUS; SNO2 MICROFLOWERS

Document Type: Research Article

Publication date: November 1, 2012

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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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