Maiti, Payel and Das, Pradip Sekhar and Ghosh, Jiten and Mukhopadhyay, Anoop Kumar (2020) Novel layered GO/Mg(OH)(2) nanocomposites for detection of Cd and Pb ions. Sensors and Actuators A-Physical, 302. Art No-111803. ISSN 0924-4247

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Here we report the efficacy of the photoluminescence (PL) spectroscopy for novel detection of as low as 0.0001 to as high as 0.01 ppm of Cd2+ and Pb2+ ions in simulated wastewater solution. The solution comprises of 20 mg of layered graphene oxide (GO)-Mg(OH)(2) nanocomposite (LGOMHNC) powders in 100 ml of DI water. The LGOMHNC powders, synthesized by facile wet chemical route, are characterized by XRD, FESEM, TEM, FTIR, Raman spectroscopy, TGA-DTA, XPS and especially, the PL spectroscopy techniques. After adsorption of Cd2+ and Pb2+ ions, the novel LGOMHNC powders exhibit significant enhancement of the corresponding PL intensities as compared to those of the as-synthesized LGOMHNC powders. These results suggest that PL spectroscopy can indeed emerge as a very important tool for detection of even 0.0001 ppm of Cd2+ and Pb2+ ions in simulated wastewater. In addition, the novel LGOMHNC powders developed in the present work can have huge application potential in futuristic, optical sensor-based detection of the toxic, heavy metal ions like Cd2+ and Pb2+. (C) 2019 Elsevier B.V. All rights reserved.

Item Type: Article
Subjects: Engineering Materials
Depositing User: Bidhan Chaudhuri
Date Deposited: 08 Feb 2021 07:32
Last Modified: 08 Feb 2021 07:32

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