An Inkjet-printed Graphene Oxide–poly(3,4-ethylenedioxythiophene) poly(styrene sulfonate) Electrode for Nitrite Detection in Water DOI Creative Commons

Riza Budi,

Weni Anindya,

Mohamad Rafi

et al.

Makara Journal of Science, Journal Year: 2023, Volume and Issue: 27(4)

Published: Dec. 15, 2023

In this study, a screen-printed electrode (SPE) for nitrite (NO2−) sensing was fabricated through an inkjet printing technique using commercial printer machine and preparing ink composite solution containing graphene oxide (GO) poly(3,4 ethylenedioxythiophene) poly(styrene sulfonate) (PEDOT:PSS) as conductive materials. The optimum materials SPE fabrication comprised GO PEDOT:PSS with binders that resemble the viscosity of ink. surface topography SPE, which characterized scanning electron microscopy atomic force microscopy, showed smoother compared to carbon electrode, deposited primarily from GO/PEDOT:PSS composites. This NO2− sensor exhibited linear response at concentration range 50–1000 µM, limit detection quantification 25 50 respectively. addition, stability, reproducibility, selectivity presented acceptable values in analytical range. Furthermore, performance spectrophotometry synthetic water samples, results revealed its good recovery confidence interval 95%. Thus, our based on SPE-modified GO/PEDOT:PSS, via technique, can be potentially applied monitoring real samples.

Language: Английский

Electrochemical Sensors based on Gold–Silver Core–Shell Nanoparticles Combined with a Graphene/PEDOT:PSS Composite Modified Glassy Carbon Electrode for Paraoxon-ethyl Detection DOI Creative Commons
Wulan Tri Wahyuni, Budi Riza Putra,

Hemas Arif Rahman

et al.

ACS Omega, Journal Year: 2024, Volume and Issue: 9(2), P. 2896 - 2910

Published: Jan. 2, 2024

Herein, a nonenzymatic detection of paraoxon-ethyl was developed by modifying glassy carbon electrode (GCE) with gold–silver core–shell (Au–Ag) nanoparticles combined the composite graphene poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) (PEDOT:PSS). These were synthesized using seed-growth method and characterized UV–vis spectroscopy high-resolution transmission electron microscopy (HR-TEM) techniques. Meanwhile, structural properties, surface morphology topography, electrochemical characterization Au–Ag core–shell/graphene/PEDOT:PSS analyzed infrared spectroscopy, field emission scanning (FE-SEM), atomic force (AFM), impedance (EIS) Moreover, proposed sensor for based on modified GCE demonstrates good electroanalytical performance when investigated cyclic voltammetry (CV), differential pulse (DPV), chronoamperometry It found that synergistic effect between graphene/PEDOT:PSS provides higher conductivity enhanced electrocatalytic activity at an optimum pH 7. At 7, shows linear range concentrations from 0.2 to 100 μM limit 10 nM high sensitivity 3.24 μA μM–1 cm–2. In addition, confirmed reproducibility, possibility being further as disposable electrode. This also displayed selectivity in presence several interfering species such diazinon, carbaryl, ascorbic acid, glucose, nitrite, sodium bicarbonate, magnesium sulfate. For practical applications, this employed determination real samples (fruits vegetables) showed no significant difference standard spectrophotometric technique. conclusion, might have potential be platform sensors pesticide detection.

Language: Английский

Citations

13
Four polyoxomolybdated-based 3D compounds as supercapacitors and amperometric sensors DOI

Kaili Hui,

Tao Liu, Mengle Yang

et al.

Microchimica Acta, Journal Year: 2024, Volume and Issue: 191(7)

Published: June 20, 2024

Language: Английский

Citations

7
Precision Fertilization: A critical review analysis on sensing technologies for nitrogen, phosphorous and potassium quantification DOI
Filipe Monteiro-Silva, Carla Queirós, Mariana Pereira

et al.

Computers and Electronics in Agriculture, Journal Year: 2024, Volume and Issue: 224, P. 109220 - 109220

Published: July 13, 2024

Language: Английский

Citations

7
Efficient Measurement and Validation of Nitrite with 5% Nafion‐Coated with Low‐Dimensional Fe2O3 Nanoparticle by Linear Sweep Voltammetry Approach DOI Open Access

Fawziah A. Al‐Rasheedi,

Hadi M. Marwani, Mohammed M. Rahman

et al.

ChemistrySelect, Journal Year: 2025, Volume and Issue: 10(11)

Published: March 1, 2025

Abstract In this approach, low‐dimensional Fe₂O₃ nanoparticles (NPs) synthesized using wet‐chemical methods in an alkaline medium were comprehensively characterized Fourier transform infrared spectroscopy (FTIR), field‐emission scanning electron microscopy (FESEM), cyclic voltammetry (CV), X‐ray photoelectron (XPS), transmission (TEM), and diffraction (XRD) before their application nitrite sensing. These analyses detailed the morphology, optical properties, crystallinity, elemental composition, electro‐catalytic behavior. Fabricated with a 5% Nafion coating on glassy carbon electrode (GCE), NPs facilitated efficient electrochemical oxidation of through two‐electron transfer, enabling precise detection. The sensor demonstrated high sensitivity 1.66 µAmM −1 cm −2 , reproducibility, reliability, surpassing conventional detection methods. Nitrite concentration wide linear dynamic range (LDR) from 2.4 to 13.4 mM, displayed clear current response increasing applied potential. also exhibited low limit (LOD) 8.6 × 10 −6 M, quantification (LOQ) 26.1 enhanced sensitivity, selectivity, stability, consistent performance repeated tests over 50 cycles LSV. This work introduces effective approach for nanostructures, validated real environmental samples RSD between 0.415% 0.866%, whereas recoveries recorded 98% 99.38%, providing robust sustainable solution monitoring.

Language: Английский

Citations

0
Harnessing Graphene-Modified Electrode Sensitivity for Enhanced Ciprofloxacin Detection DOI Open Access
Lidia Măgeruşan, Florina Pogăcean,

Bogdan-Ionuţ Cozar

et al.

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(7), P. 3691 - 3691

Published: March 26, 2024

Increased evidence has documented a direct association between Ciprofloxacin (CFX) intake and significant disruption to the normal functions of connective tissues, leading severe health conditions (such as tendonitis, tendon rupture retinal detachment). Additionally, CFX is recognized potential emerging pollutant, it seems impact both animal human food chains, resulting in implications. Consequently, there compelling need for precise, swift selective detection this fluoroquinolone-class antibiotic. Herein, we present novel graphene-based electrochemical sensor designed discuss its practical utility. The graphene material was synthesized using relatively straightforward cost-effective approach involving exfoliation graphite, through pulsing current, 0.05 M sodium sulphate (Na2SO4), boric acid (H3BO3) chloride (NaCl) solution. underwent systematic characterization scanning electron microscopy/energy dispersive X-ray analysis, powder diffraction Raman spectroscopy. Subsequently, employed fabrication modified glassy carbon surfaces (EGr/GC). Linear Sweep Voltammetry studies revealed that experiences an irreversible oxidation process on surface at approximately 1.05 V. Under optimal conditions, limit quantification found be 0.33 × 10−8 M, with corresponding 0.1 M. developed sensor’s suitability assessed commercially available pharmaceutical products.

Language: Английский

Citations

3
Nanometer-Sized MIL-101(Cr) Loaded with Metal Ions for Applications as a Nitrite Sensor with Enhanced Electrochemical Properties DOI

Yuhua Dong,

Fengkai Liu,

Shengquan Liu

et al.

ACS Applied Nano Materials, Journal Year: 2024, Volume and Issue: 7(14), P. 16620 - 16629

Published: July 11, 2024

Language: Английский

Citations

3
Comparison of the analytical performance of two different electrochemical sensors based on a composite of gold nanorods with carbon nanomaterials and PEDOT:PSS for the sensitive detection of nitrite in processed meat products DOI Creative Commons
Wulan Tri Wahyuni,

Hemas Arif Rahman,

Salmi Afifah

et al.

RSC Advances, Journal Year: 2024, Volume and Issue: 14(34), P. 24856 - 24873

Published: Jan. 1, 2024

Herein, two platforms for electrochemical sensors were developed based on a combination of gold nanorods (AuNRs) with electrochemically reduced graphene oxide (ErGO) or multiwalled carbon nanotubes (MWCNTs) and PEDOT:PSS nitrite detection. The first second electrodes denoted as AuNRs/ErGO/PEDOT:PSS/GCE AuNRs/MWCNT/PEDOT:PSS/GCE, respectively. Both materials electrode modifiers then characterized using UV-Vis Raman spectroscopy, SEM, HR-TEM. In addition, both exhibit good electroanalytical performance detection when investigated voltammetric techniques. synergistic effect between the AuNRs their composites enhanced electrocatalytic activity toward oxidation compared unmodified electrode, was superior to electrode. This is because high surface area conductivity MWCNTs in provide highest active (0.1510 cm2) among other electrodes. Moreover, exhibited higher value coverage diffusion coefficient than performances terms concentration range are 0.8-100 μM 0.2-100 μM, limit (0.2 0.08 μM), measurement sensitivity (0.0451 μA μM-1 cm-2 0.0634 cm-2). Good selectivity also shown from presence NaCl, Na2SO4, Na3PO4, MgSO4, NaHCO3, NaNO3, glucose, ascorbic acid interfering species Furthermore, employed detect food preservative beef sample, results showed no significant difference spectrophotometric technique. These indicate that proposed may be further applied promising sensing situ

Language: Английский

Citations

1
Correlation of Transmission Properties with Glucose Concentration in a Graphene-Based Microwave Resonator DOI Creative Commons
Muhammad Yasir, F. Peinetti, Patrizia Savi

et al.

Micromachines, Journal Year: 2023, Volume and Issue: 14(12), P. 2163 - 2163

Published: Nov. 27, 2023

Carbon-based materials, such as graphene, exhibit interesting physical properties and have been recently investigated in sensing applications. In this paper, a novel technique for glucose concentration correlation with the resonant frequency of microwave resonator is performed. The exploits variation electrical graphene at radio (RF). described approach based on transmission coefficient resonating microstrip ring modified film. film doctor-bladed functionalised order to detect glucose. When drop given deposited film, resonance peak shifted. modelled lumped element analysis. Several prototypes are realised Rogers Kappa substrate their measured different concentrations Results show good between shift applied

Language: Английский

Citations

2
ZIF-67C@CeO2 Composite for the Electrochemical Non-Enzymatic Determination of Nitrite in Fish Dry Samples DOI Creative Commons

Junhui Feng,

Yan Lin,

Muxiang Lin

et al.

Journal of The Electrochemical Society, Journal Year: 2024, Volume and Issue: 171(4), P. 047508 - 047508

Published: April 1, 2024

Nitrite is widely present in the human environment, and it one of most common nitrogenous compounds nature. However, often used as a preservative meat products even though has always been considered carcinogen. Herein, dimethylimidazole was ligand to coordinate Co 2+ prepare metal-organic framework material- ZIF67, then ZIF67 added prepared cerium hydroxide produce ZIF67C@CeO 2 composite via high-temperature calcination. Furthermore, novel modified glassy carbon electrode (ZIF67C@CeO /GCE) constructed detect nitrite fish dried samples. Scanning electron microscopy X-ray diffraction were characterize microstructure ZIF-67C@CeO composite. The experimental condition, such applied potentials, load mass composite, pH value electrolyte optimized by electrochemical tests. In optimal conditions, linear range sensor for detecting 0.3–1150 μ M, detection limit (DL) 0.102 M. Moreover, possesses good anti-jamming capability, repeatability, reproducibility. sensor- /GCE showed excellent performance enabled foods.

Language: Английский

Citations

0
Kinetics of Nitrite Adsorption onto a Styrene Divinylbenzene Macroporous Strong Base Polymer DOI
Cristina Marcu, Ancuţa Balla, Codruţa Varodi

et al.

Analytical Letters, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 15

Published: June 25, 2024

A suitable adsorbent for the treatment of nitrite in wastewater was investigated using a macroporous styrene divinylbenzene strong base polymer 10−3 M to 6 x 10−3M NaNO2 at room temperature batch protocol. The supernatant concentrations were determined rapidly and inexpensively by an electrochemical method. To investigate sorption mechanism rate-determining step, four kinetic models investigated. pseudo-second order model best fit adsorption onto polymer. highest correlation coefficient (0.9999) chi square (7.59 10−4) values obtained 0.046 0.276 g L−1 NO2- which is characteristic chemosorption. results demonstrate that removing nitrites water legally allowed 1.5 but dilution required higher concentrations.

Language: Английский

Citations

0