Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/80348
Title: Graphene interface for detection of resorcinol an endocrine disruptor in solubilized ionic liquid system : electrochemical and COSMO-RS quantum studies
Authors: Rather, Jahangir Ahmad
Alsubhi, Zamzam
Khan, Imran
Khudaish, Emad
Kannan, Palanisamy
Keywords: Science::Biological sciences
Endocrine Disruptor
Graphene Interface
Issue Date: 2018
Source: Rather, J. A., Alsubhi, Z., Khan, I., Khudaish, E., & Kannan, P. (2018). Graphene interface for detection of resorcinol an endocrine disruptor in solubilized ionic liquid system : electrochemical and COSMO-RS quantum studies. Journal of The Electrochemical Society, 165(3), H57-H66. doi:10.1149/2.1241802jes
Series/Report no.: Journal of The Electrochemical Society
Abstract: We report synthesis, characterization and covalent fabrication of graphene nanosheets (GR) on Au electrode. The GR nanosheets were characterized by XRD, Raman spectroscopy, FESEM and TEM techniques. The GR nanosheets were functionalized by reduction of aryldiazonium salt (Cl−N2+–Ph–COOH) to produce GR–Ph–COOH. In another step, Au electrode was modified by cysteamine (Cyst) to form Au–S–CH2–CH2–NH2 surface. Finally, GR–Ph–COOH was covalently attached to Au–S–CH2–CH2–NH2 by carbodiimide chemistry. The GR–Cyst–Au interface was used for electrochemical determination of resorcinol (RS) in ionic liquid [C4mim] [Cl] system over a concentration range from 0.3 to 45.2 μM with a detection limit (LOD) of 0.02 μM. The faster electron transfers kinetics of RS in [C4 mim] [Cl] system was attributed to synergetic effects of GR nanosheets and [C4 mim] [Cl] medium. The GR–Cyst–Au interface was successfully applied for determination of RS in Garnier hair-color cream as a real sample analysis. Computational quantum approach i.e. COSMO-RS model was also used to study trend of interactions in a ternary mixture of water, RS and [C4 mim] [Cl] system for proposed RS sensor.
URI: https://hdl.handle.net/10356/80348
http://hdl.handle.net/10220/50369
ISSN: 0013-4651
DOI: http://dx.doi.org/10.1149/2.1241802jes
Rights: © The Electrochemical Society, Inc. 2018. All rights reserved. Except as provided under U.S. copyright law, this work may not be reproduced, resold, distributed, or modified without the express permission of The Electrochemical Society (ECS). The archival version of this work was published in Journal of The Electrochemical Society, 155, 3, H57-H66.
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