Abstract
A simple green hydrothermal template-free method was developed to prepare single-crystalline superstructures of fern-wort-like copper selenide (CuSe) in large-scale by using polyvinylpyrrolidone (PVP) as both reductant and surfactant for the first time. Time-dependent morphologic evolution was made in order to explore the formation mechanism of the as-prepared product. The copper selenides with different morphologies, phases and structural forms could be prepared by varying the synthesis parameters, such as precursor molar ratios, precursor combinations, and the molecular weight of PVP. The fernwort-like superstructures of CuSe show excellent Fenton-like catalytic activities in degrading malachite green (MG) and rhodamine B (RhB). These catalysts play an important role in the degradation process of MG and RhB solution with the aid of H2O2 which can yield highly reactive hydroxyl radicals (HO·). Besides, the as-prepared CuSe catalyst is stable and reusable, thus it could be applied to the treatment of the dye contaminated waste water.
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Mao, Y., Zou, H., Wang, Q. et al. Large-scale preparation of fernwort-like single-crystalline superstructures of CuSe as Fenton-like catalysts for dye decolorization. Sci. China Chem. 59, 903–909 (2016). https://doi.org/10.1007/s11426-016-5600-5
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DOI: https://doi.org/10.1007/s11426-016-5600-5