Salen decorated nanostructured ZnO chemosensor for the detection of mercuric ions (Hg2+)
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ZnO nano-particles, -dumbbell, -flowers synthesized by the hydrothermal method.

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Crystallite size of ZnO controlled by the growth manipulation.

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NBE peaks of PL are penetrating than the DLE peaks due to the improvement of crystallinity.

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ZnO decorated with salen, and tested for various metal ions and Hg2+.

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Nanoparticles showed the dynamic range and nanoflowers showed the better detection limit.

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Selectivity to Hg2+ are the lowest detection limits of 20 nM, 18 nM, 35 nM and 10 nM with the variation of microstructures.

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