A Rapid Synthesis of LDHs Nanosheets/Electrochemical Reduction of Graphene Oxide Nanocomposites to Simultaneously Detect Ascorbic Acid, Dopamine, and Uric Acid

Abstract

We report a facile and rapid synthesis of NiAl LDH/ERGO and reduction by electrochemical method. Compared with previous studies, this experiment greatly decreased the use of reductive solvents and was environmentally friendly. The nanocomposite material was characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, and Fourier transform infrared spectrometer. A series of electrochemical methods were applied to test the electrochemical performance of modified electrodes. When the modified electrode was used to detect AA, DA, and UA, the three substances can be clearly separated and the limits of detection for AA, DA, and UA can be 0.85 μM in the range 12.48 to 232 μM, 0.38 μM in the range 1.06 to 13.26 μM, and 0.42 μM in the range 1.25 to 23.20 μM (S/N = 3), respectively. The modified electrode could provide a reproducible and stable platform to detect AA, DA, and UA simultaneously.

Exploring Ir-doped NiFe-LDH nanosheets via a pulsed laser for oxygen evolution kinetics: in situ Raman and DFT insights

“…3e, the C 1s spectrum exhibits three peaks at around 284.6, 286.2, and 288.5 eV associated with the C–C, CO, and OC–O bonds from the carbonyl (CO 3 2− ) anions of LDH, respectively. 54,55 To get a better understanding of the electronic structure and coordination environment of Ir species, we conducted X-ray absorption spectroscopy (XAS) on the NiFeIr-LDH sample. Fig.…”

“…anions of LDH, respectively. 54,55 To get a better understanding of the electronic structure and coordination environment of Ir species, we conducted X-ray absorption spectroscopy (XAS) on the NiFeIr-LDH sample. This journal is © The Royal Society of Chemistry 2024 Fig.…”

Preparation of carbon quantum dot fluorescent probe from waste fruit peel and its use for the detection of dopamine

“…This resulted in highly sensitive detection of DA, with a linear range of 0.38–1.06 μM and excellent reproducibility. 5 Chen et al utilized five injectable cardiovascular drugs for their study. These drugs include dobutamine, phentolamine, furosemide, and aminophylline.…”