Abstract
The detection of contaminated ions is a crucial concern with potential to mitigate environmental problems. Notably, 2-substituted perimidines exhibit promising efficacy in the context of environmental remediation applications. In this context, recyclable nanocatalyst SiO2-Pr-SO3H, 1,8-diaminonaphthalene (DAN) reacted with various aldehydes to produce 2-substituted perimidines. This work effectively offered a unique fluorescence from 2-(3-nitrophenyl)-2,3-dihydro-1H-perimidine as a Hg2+ detector which was designed and prepared under greener solvent-free conditions. Intriguingly, the chemosensor responded to Hg2+ with a luminous reaction. The sensor showed exceptional sensitivity and high selectivity for Hg2+. It has been demonstrated that amino-containing chemical compounds can be exploited to create fluorescence ligands for finding Hg2+and may be adapted for other ions as well.
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