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Graphene quantum dots (GQDs) have successfully been utilized as efficient nano-sized fluorescence chemosensor to detect selectively Hg 2+ in 100% aqueous solution (pH 7). The selectivity and sensitivity of the probe have been investigated by employing a number of spectroscopic techniques. The probe follows a ‘turn-off’ mechanism while sensing the highly toxic pollutant Hg 2+ . Steady...
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