Self-Assembled Monolayers on Nanostructured Composites for Electrochemical Sensing Applications

Atta, Nada F.; El-Ads, Ekram H.; Galal, Ahmed M.

doi:10.1007/978-3-319-15266-0_38

Cited by 4 publications

(2 citation statements)

References 149 publications

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“…Due to their versatility, electrodeposition processes can be used to produce surfaces with a variety of crystalline variants. These surfaces could form as porous deposits, high-rough deposits, uniformly dense layers, or nanostructured substances [Atta et al, 2016]. To identify the characterization of the electrodes that were created at varied metal salt concentrations, the anode-deposited electrodes are denoted as A1, B1, and C1, respectively, and the related cathode electrodes as A2, B2, and C2, respectively.…”

Section: Characterization Of Prepared Composite Electrodesmentioning

confidence: 99%

Synthesis of Mn-Co-Ni Composite Electrode by Anodic and Cathodic Electrodeposition for Indirect Electro-oxidation of Phenol – Optimization of the Removal by Response Surface Methodology

Ahmed,

Salman

2023

Ecol. Eng. Environ. Technol.

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In the present work, Response Surface Methodology (RSM) was utilized to optimize process variables and find the best circumstances for indirect electrochemical oxidation of mimicked wastewater to remove phenol contaminants using prepared ternary composite electrode. The electrodeposition process is used for the synthesis of a ternary composite electrode of Mn, Co, and Ni oxides. The selected concentrations of metal salts of these elements were 0.05, 0.1, and 1.5 M, with constant molar ratio, current density, and electrolysis time of 1:1:1, 25 mA/cm 2 , and 2 h. Interestedly, the gathered Mn-Co-Ni oxides were deposited at both the anode and cathode. X-ray diffraction (XRD) and scanning electron microscopy (SEM) facilitated the qualitative characterization of surface structure and morphology of the accumulated oxides. The energy dispersive X-ray (EDX) provided a semi-quantitative analysis of deposit composition. The atomic force microscopy (AFM) apparatus quantified t he roughness. We examined the efficiency of composite electrodes in coinciding with the removal of Chemical Oxygen Demand (COD) under current densities of 40, 60, and 80 mA/cm 2 , pH values of 3, 4, and 5, and NaCl concentrations of 1, 1.5, 2 g/l. RSM covered the optimization of process parameters in conjunction with Central Composite Design (CCD). The COD represented the response function in the optimization procedure. The optimal current density, NaCl concentration, and pH magnitude were 80 mA/cm 2 , 1.717 g/l, and 3, respectively. The efficiency of COD elimination of 99.925% attained after 1 hour of indirect electrochemical oxidation with an energy consumption of 152.380 kWh per kilogram of COD. The COD elimination model is significant based on the correlation coefficient (R 2 ) and F-values, and the experimental data fitted well to a second-order polynomial model with R 2 of 98.93%.

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Section: Characterization Of Prepared Composite Electrodesmentioning

confidence: 99%

Synthesis of Mn-Co-Ni Composite Electrode by Anodic and Cathodic Electrodeposition for Indirect Electro-oxidation of Phenol – Optimization of the Removal by Response Surface Methodology

Ahmed,

Salman

2023

Ecol. Eng. Environ. Technol.

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“…In this context, significant advantages have been achieved using conduction polymers to develop electrochemical sensors for detecting AC 2,17 . Conducting polymers can be easily prepared as film electrodeposited over different substrates with good homogeneity, chemical stability, many active sites, and adherence to electrode surface strongly 18 .…”

Section: Introductionmentioning

confidence: 99%

One-step electrochemical preparation of a reduced graphene oxide/poly(sulfosalicylic acid) nanocomposite film for detection of acetaminophen and its application in human urine and serum studies

Zheng

Liu

et al. 2015

Anal. Methods

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A mild preparation tactics was developed for the fabrication of reduction graphene oxide (rGO) and poly (sulfosalicylic acid) (PSA) nanocomposite film by one-step electrochemical method. The nanocomposite film was characterized by scanning electron microscope (SEM), Fourier transform infrared (FTIR) spectra, and electrochemical methods. The electrochemical properties of the nanocomposite were evaluated by means of cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Based on the synergistic effect of rGO and PSA nanocomposite film, a sensitive electrochemical sensor for acetaminophen (AC) was successfully fabricated. The electrochemical reaction of AC at glassy carbon electrode (GCE) modified with PSA and rGO nanocomposite film (PSA/rGO/GCE) was proved to be a surface-controlled process involving the same number of protons and electrons. Under optimum experimental conditions, the anodic peak currents were linear over the AC concentrations ranging from 0.5 to 300 µM, with a limit of detection (LOD) of 0.041 µM (S/N = 3). Furthermore, the modified electrode was demonstrated its feasibility for analytical purposes in real samples. A linear calibration curve was obtained for the determination of AC in urine within the range 1 to 300 µM with a LOD of 0.36 µM under optimized conditions. In addition, the PSA/rGO/GCE was demonstrated in human serum with satisfactory results.

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Advanced Surface Engineering Strategies for Point-of-Care Devices

Khan,

Munir,

2023

Surface Engineering and Functional Nanomaterials for Point-of-Care Analytical Devices

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Self-Assembled Monolayers on Nanostructured Composites for Electrochemical Sensing Applications

Cited by 4 publications

References 149 publications

Synthesis of Mn-Co-Ni Composite Electrode by Anodic and Cathodic Electrodeposition for Indirect Electro-oxidation of Phenol – Optimization of the Removal by Response Surface Methodology

Synthesis of Mn-Co-Ni Composite Electrode by Anodic and Cathodic Electrodeposition for Indirect Electro-oxidation of Phenol – Optimization of the Removal by Response Surface Methodology

One-step electrochemical preparation of a reduced graphene oxide/poly(sulfosalicylic acid) nanocomposite film for detection of acetaminophen and its application in human urine and serum studies

Advanced Surface Engineering Strategies for Point-of-Care Devices

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