Graphitic carbon nitride (g-C3N4/Fe3O4/BiOI)-carbon composite electrode as a highly sensitive and selective citric acid sensor: Three-component nanocomposite as a definitive factor for selectivity in catalysis

Alizadeh, Taher; Nayeri, Sahar; Habibi‐Yangjeh, Aziz

doi:10.1016/j.snb.2018.10.003

Cited by 33 publications

(6 citation statements)

References 34 publications

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“…48 This sensing performance of Pt/g-C 3 N 4 –Fe 3 O 4 /LabSPE may be attributed to the high catalytic activity of Pt NPs, 21,61 and efficient electron transfer at the interface of the sensor due to the synergistic effect of g-C 3 N 4 –Fe 3 O 4 and Pt NPs. 62,63 In addition, Fe 3 O 4 nanoparticles can form a homogeneous composite with ultrathin g-C 3 N 4 sheets showing excellent dispersion stability thanks to the one-step electrochemical method, which can contribute to the increase in surface area and catalytic activity of the sensing material by preventing aggregation of Fe 3 O 4 nanoparticles. Besides, Fe 3 O 4 nanoparticles, since it is positively charged in the supporting electrolyte of pH 4, can facilitate electrostatic interaction with the negatively charged groups of BHA molecule.…”

Section: Resultsmentioning

confidence: 99%

A lab-made screen-printed sensing strip for sensitive and selective electrochemical detection of butylated hydroxyanisole

et al. 2023

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Section: Resultsmentioning

confidence: 99%

A lab-made screen-printed sensing strip for sensitive and selective electrochemical detection of butylated hydroxyanisole

et al. 2023

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“…Alizadeh et al synthesized a g-C 3 N 4 /Fe 3 O 4 /BiOI-carbon composite as an electrode for detecting citric acid (CA). [184] The results indicated that the three-component nanocomposite (i.e., The HRTEM image of CuO@Cu/g-C 3 N 4 NS composites. d) The HRTEM images of CeO 2 -CuO@Cu/g-C 3 N 4 NS composites.…”

Section: Co 3 O 4 /Fe 3 O 4 /C-loaded G-c 3 N 4 Nanocompositesmentioning

confidence: 91%

Section: Co 3 O 4 /Fe 3 O 4 /C-loaded G-c 3 N 4 Nanocompositesmentioning

confidence: 99%

Host–Guest Recognition on 2D Graphitic Carbon Nitride for Nanosensing

Wang

Zhang

et al. 2019

Adv Materials Inter

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In recent years, graphitic carbon nitride (g-C 3 N 4) has attracted much attention due to its unique properties and excellent performance in the field of sensors, which has inspired the authors to compile this review. Although there are many reviews on the synthesis and applications of g-C 3 N 4 materials, a targeted, systematic, comprehensive summary of applications in sensors and the sensing mechanisms of g-C 3 N 4-based nanomaterials have not been published. In this review, the preparation methods and synthetic conditions for preparing g-C 3 N 4 with different morphologies, such as conventional bulk g-C 3 N 4 , g-C 3 N 4 nanosheets, and g-C 3 N 4 quantum dots, are introduced in detail. By reviewing recent advances in g-C 3 N 4-based nanomaterials in ion sensors, biosensors, gas sensors and humidity sensors, this study provides more comprehensive and in-depth information for the further design of g-C 3 N 4based sensors with enhanced performance. A brief outlook of g-C 3 N 4-based sensors is presented as the conclusion of this review.

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“…Various kinds of electrochemical transducers have been applied in electrochemical methods. Among them, carbon paste electrode (CPE) is now accepted as a popular electrochemical transducer in the electrochemistry due to its unique properties including a large potential window on both anode and the cathode region, the simplicity of its preparation, low cost, and simple modification of them [22][23][24][25][26][27][28].…”

Section: Introductionmentioning

confidence: 99%

A Simple Method for Melatonin Determination in the Presence of High Levels of Tryptophan using an Unmodified Carbon Paste Electrode and Square Wave Anodic Stripping Voltammetry

2022

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Electrochemical determination of melatonin in the presence of tryptophan is a challenge because of the coincidence of voltammetric signals of these compounds when executing a voltammetric technique. The new method for selective determination of melatonin based on the square wave anodic stripping voltammetry determination of an electroactive product of melatonin was suggested here. This product is produced by previously applied positive pre‐potential to a carbon paste electrode, immersed in the test solution. By this means, the electrochemical signal of melatonin was separated effectively from that of tryptophan, making it possible to determine melatonin in the presence of a high concentration of tryptophan. The effect of important parameters on electrode performance was studied and optimized. The optimum response was obtained at pH=2 and utilizing the pre‐potential magnitude of +0.8 V, applied for 10 s. A linear relationship was found between peak current intensity and melatonin concentrations over the range of 5.00×10−7 to 8.00×10−5 mol L−1. A detection limit of 8.30×10−8 mol L−1 was calculated for the method (S/N=3). The selectivity of the method was considerably high, because of the independence of melatonin signal to the presence of higher amounts of some potentially interfering agents such as ascorbic acid, tryptophane glucose, etc. As an analytical application, the proposed sensor was used for the determination of melatonin in pharmaceutical and food samples.

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Graphitic carbon nitride (g-C3N4/Fe3O4/BiOI)-carbon composite electrode as a highly sensitive and selective citric acid sensor: Three-component nanocomposite as a definitive factor for selectivity in catalysis

Cited by 33 publications

References 34 publications

A lab-made screen-printed sensing strip for sensitive and selective electrochemical detection of butylated hydroxyanisole

A lab-made screen-printed sensing strip for sensitive and selective electrochemical detection of butylated hydroxyanisole

Host–Guest Recognition on 2D Graphitic Carbon Nitride for Nanosensing

A Simple Method for Melatonin Determination in the Presence of High Levels of Tryptophan using an Unmodified Carbon Paste Electrode and Square Wave Anodic Stripping Voltammetry

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