Fluorescent carbon nanoparticles obtained from charcoal via green methods and their application for sensing Fe3+ in
Rajesh Patidar1,2, Babulal Rebary1, Dhruti A Sanghani1
1Analytical Division & Centralized Instrument facility, CSIR-Central Salt & Marine Chemicals Research institute, Bhavnagar, Gujarat, India.
Abstract:
Two green methods (microwave and hydrothermal) were employed for the preparation of water dispersible fluorescent carbon nanoparticles (CNPs) from activated charcoal. Microwave and hydrothermally synthesized carbon nanoparticles, (MW-CNPs) and (HT-CNPs), respectively were characterized by microscopic and spectroscopic techniques. A detailed study of their fluorescence characteristics was made. MW-CNPs and HT-CNPs were tested for metal ion selectivity in aqueous medium. MW-CNPs showed selectivity for Fe3+ among the tested metal ions and important studies such as for interference, linear range and limit of detection were carried out. The application of MW-CNPs for detection of Fe3+ in water was demonstrated.
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