pp. 1147-1156
S&M1841 Research Paper of Special Issue https://doi.org/10.18494/SAM.2019.2142 Published in advance: March 11, 2019 Published: April 11, 2019 Optical Studies of Graphene Oxide/poly(amidoamine) Dendrimer Composite Thin Film and Its Potential for Sensing Hg2+ Using Surface Plasmon Resonance Spectroscopy [PDF] Mohammad Danial Aizad Roshidi, Yap Wing Fen, Nur Alia Sheh Omar, Silvan Saleviter, and Wan Mohd Ebtisyam Mustaqim Mohd Daniyal (Received September 28, 2018; Accepted October 31, 2018) Keywords: surface plasmon resonance, optical properties, graphene oxide, poly(amidoamine) dendrimer
In this study, a graphene oxide/poly(amidoamine) (GO/PAMAM) dendrimer composite thin film was developed for the potential detection of Hg2+ using surface plasmon resonance (SPR) spectroscopy. Fourier transform infrared spectroscopy (FTIR) analysis proved the presence of amino, carboxylic acid, carboxyl, and hydroxyl groups in the GO/PAMAM thin film. The optical properties of the thin film were characterized using UV-Vis absorption spectroscopy. The UV-Vis analysis showed that the absorption of the GO/PAMAM thin film was high with an optical band gap of 4.01 eV. The incorporation of the GO/PAMAM thin film with SPR spectroscopy produced positive responses towards various Hg2+ concentrations. Atomic force microscopy results indicated that the thin film has an irregular edge and hence proved the interaction of mercury ions with the thin film.
Corresponding author: Yap Wing FenThis work is licensed under a Creative Commons Attribution 4.0 International License. Cite this article Mohammad Danial Aizad Roshidi, Yap Wing Fen, Nur Alia Sheh Omar, Silvan Saleviter, and Wan Mohd Ebtisyam Mustaqim Mohd Daniyal, Optical Studies of Graphene Oxide/poly(amidoamine) Dendrimer Composite Thin Film and Its Potential for Sensing Hg2+ Using Surface Plasmon Resonance Spectroscopy, Sens. Mater., Vol. 31, No. 4, 2019, p. 1147-1156. |