1
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Mejri A, Mandriota G, Hamza E, Curri ML, Ingrosso C, Mars A. Pencil Graphite Electrocatalytic Sensors Modified by Pyrene Coated Reduced Graphene Oxide Decorated with Molybdenum Disulfide Nanoroses for Hydrazine and 4-Nitrophenol Detection in Real Water Samples. Molecules 2023; 28:7311. [PMID: 37959731 PMCID: PMC10648802 DOI: 10.3390/molecules28217311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2023] [Revised: 10/25/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
Novel nanostructured platforms based on Pencil Graphite Electrodes (PGEs), modified with pyrene carboxylic acid (PCA) functionalized Reduced Graphene Oxide (rGO), and then decorated by chronoamperometry electrodeposition of MoS2 nanoroses (NRs) (MoS2NRs/PCA-rGO/PGEs) were manufactured for the electrocatalytic detection of hydrazine (N2H4) and 4-nitrophenol, pollutants highly hazardous for environment and human health. The surface morphology and chemistry of the MoS2NRs/PCA-rGO/PGEs were characterized by scanning electron microscopy (SEM), Raman, and X-ray photoelectron spectroscopy (XPS), assessing the coating of the PCA-rGO/PGEs by dense multilayers of NRs. N2H4 and 4-nitrophenol have been monitored by Differential Pulse Voltammetry (DPV), and the MoS2NRs/PCA-rGO/PGEs electroanalytical properties have been compared to the PGEs, as neat and modified by PCA-rGO. The MoS2NRs/PCA-rGO/PGEs demonstrated a higher electrochemical and electrocatalytic activity, due to their high surface area and conductivity, and very fast heterogeneous electron transfer kinetics at the interphase with the electrolyte. LODs lower than the U.S. EPA recommended concentration values in drinking water, namely 9.3 nM and 13.3 nM, were estimated for N2H4 and 4-nitrophenol, respectively and the MoS2NRs/PCA-rGO/PGEs showed good repeatability, reproducibility, storage stability, and selectivity. The effectiveness of the nanoplatforms for monitoring N2H4 and 4-nitrophenol in tap, river, and wastewater was addressed.
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Affiliation(s)
- Alma Mejri
- Laboratory of Natural Water Treatment (LADVEN), Water Researches and Technologies Center, Techno-Park Borj-Cedria, University of Carthage, BP 273, Soliman 8020, Tunisia
| | - Giacomo Mandriota
- CNR-IPCF Sez. Bari, c/o Department of Chemistry, Università degli Studi di Bari, Via Orabona 4, I-70126 Bari, Italy
| | - Elfil Hamza
- Laboratory of Natural Water Treatment (LADVEN), Water Researches and Technologies Center, Techno-Park Borj-Cedria, University of Carthage, BP 273, Soliman 8020, Tunisia
| | - Maria Lucia Curri
- CNR-IPCF Sez. Bari, c/o Department of Chemistry, Università degli Studi di Bari, Via Orabona 4, I-70126 Bari, Italy
- Department of Chemistry, Università degli Studi di Bari, Via Orabona 4, I-70126 Bari, Italy
| | - Chiara Ingrosso
- CNR-IPCF Sez. Bari, c/o Department of Chemistry, Università degli Studi di Bari, Via Orabona 4, I-70126 Bari, Italy
| | - Abdelmoneim Mars
- Laboratory of Natural Water Treatment (LADVEN), Water Researches and Technologies Center, Techno-Park Borj-Cedria, University of Carthage, BP 273, Soliman 8020, Tunisia
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2
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Wang X, Karaman C, Zhang Y, Xia C. Graphene oxide/cellulose nanofibril composite: A high-performance catalyst for the fabrication of an electrochemical sensor for quantification of p-nitrophenol, a hazardous water pollutant. CHEMOSPHERE 2023; 331:138813. [PMID: 37127202 DOI: 10.1016/j.chemosphere.2023.138813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 03/17/2023] [Accepted: 04/28/2023] [Indexed: 05/03/2023]
Abstract
The detection and quantification of p-Nitrophenol (p-NP) in environmental samples are important for understanding the extent and impact of environmental pollution, protecting human health, ensuring regulatory compliance, and guiding remediation efforts. The main objective of this work was to investigate the electrochemical performance of a graphene oxide/cellulose nanofibril composite (GO/CNF) modified carbon paste electrode (GO/CNF/CPE) for the sensitive and reliable detection of p-nitrophenol in water samples. The transmission electron microscopy (TEM) technique was employed to enlighten the structure of nanocomposites. The electrochemical behavior of the fabricated electrochemical sensor was characterized via differential pulse voltammetry (DPV), linear sweep voltammetry (LSV), and electrochemical impedance spectroscopy (EIS). Under optimized analytical conditions, the peak current of the analyte showed a wide linear relationship with its concentration in a range of 3.0 nM-210 μM with a low amount of the limit of detection (LOD) value of 0.8 nM determined by the DPV method. The proposed electrochemical sensor demonstrated excellent sensitivity, selectivity, and accuracy metrics in real sample analysis of p-nitrophenol.
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Affiliation(s)
- Xuan Wang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Ceren Karaman
- Department of Electricity and Energy, Vocational School of Technical Sciences, Akdeniz University, Antalya, 07070, Turkey; School of Engineering, Lebanese American University, Byblos, Lebanon.
| | - Yaoli Zhang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China
| | - Changlei Xia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, Jiangsu, 210037, China.
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3
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Faisal M, Alam MM, Ahmed J, Asiri AM, Jalalah M, Alruwais RS, Rahman MM, Harraz FA. Sensitive Electrochemical Detection of 4-Nitrophenol with PEDOT:PSS Modified Pt NPs-Embedded PPy-CB@ZnO Nanocomposites. BIOSENSORS 2022; 12:bios12110990. [PMID: 36354499 PMCID: PMC9688362 DOI: 10.3390/bios12110990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/25/2022] [Revised: 11/05/2022] [Accepted: 11/06/2022] [Indexed: 05/09/2023]
Abstract
In this study, a selective 4-nitrophenol (4-NP) sensor was developed onto a glassy carbon electrode (GCE) as an electron-sensing substrate, which decorated with sol-gel, prepared Pt nanoparticles- (NPs) embedded polypyrole-carbon black (PPy-CB)/ZnO nanocomposites (NCs) using differential pulse voltammetry. Characterizations of the NCs were performed using Field Emission Scanning Electron Microscopy (FESEM), Energy-Dispersive Spectroscopy (EDS), X-ray Photoelectron Spectroscopy (XPS), Ultraviolet-visible Spectroscopy (UV-vis), Fourier Transform Infrared Spectroscopy (FTIR), High Resolution Transmission Electron Microscopy (HRTEM), and X-ray Diffraction Analysis (XRD). The GCE modified by conducting coating binders [poly(3,4-ethylenedioxythiophene) polystyrene sulfonate; PEDOT:PSS] based on Pt NPs/PPy-CB/ZnO NCs functioned as the working electrode and showed selectivity toward 4-NP in a phosphate buffer medium at pH 7.0. Our analysis of 4-NP showed the linearity from 1.5 to 40.5 µM, which was identified as the linear detection range (LDR). A current versus concentration plot was formed and showed a regression co-efficient R2 of 0.9917, which can be expressed by ip(µA) = 0.2493C(µM) + 15.694. The 4-NP sensor sensitivity was calculated using the slope of the LDR, considering the surface area of the GCE (0.0316 cm2). The sensitivity was calculated as 7.8892 µAµM-1cm-2. The LOD (limit of detection) of the 4-NP was calculated as 1.25 ± 0.06 µM, which was calculated from 3xSD/σ (SD: Standard deviation of blank response; σ: Slope of the calibration curve). Limit of quantification (LOQ) is also calculated as 3.79 µM from LOQ = 10xLOD/3.3. Sensor parameters such as reproducibility, response time, and analyzing stability were outstanding. Therefore, this novel approach can be broadly used to safely fabricate selective 4-NP sensors based on nanoparticle-decorated nanocomposite materials in environmental measurement.
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Affiliation(s)
- Mohd Faisal
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts, Najran University, Najran 11001, Saudi Arabia
| | - Md. Mahmud Alam
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Jahir Ahmed
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
| | - Abdullah M. Asiri
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Mohammed Jalalah
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Electrical Engineering, College of Engineering, Najran University, Najran 11001, Saudi Arabia
| | - Raja Saad Alruwais
- Chemistry Department, Faculty of Science and Humanities, Shaqra University, Dawadmi 17472, Saudi Arabia
| | - Mohammed M. Rahman
- Center of Excellence for Advanced Materials Research (CEAMR), King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Department of Chemistry, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Correspondence: (M.M.R.); (F.A.H.)
| | - Farid A. Harraz
- Promising Centre for Sensors and Electronic Devices (PCSED), Advanced Materials and Nano-Research Centre, Najran University, P.O. Box 1988, Najran 11001, Saudi Arabia
- Department of Chemistry, Faculty of Science and Arts at Sharurah, Najran University, Najran 11001, Saudi Arabia
- Correspondence: (M.M.R.); (F.A.H.)
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4
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Wang B, He Q, Li G, Long Y, Zhang G, Liu H, Liu J. Sensitive Determination of Trace 4-Nitrophenol in Ambient Environment Using a Glassy Carbon Electrode Modified with Formamide-Converted Nitrogen-Doped Carbon Materials. Int J Mol Sci 2022; 23:12182. [PMID: 36293039 PMCID: PMC9603515 DOI: 10.3390/ijms232012182] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/21/2022] [Accepted: 10/10/2022] [Indexed: 09/28/2023] Open
Abstract
Sensing trace amounts of 4-nitrophenol (4-NP) as a harmful substance to organisms even in small quantities is of great importance. The present study includes a sensitive and selective electrochemical sensor for detecting 4-NP in natural water samples using formamide-converted nitrogen-carbon materials (shortened to f-NC) as a new material for electrode modification. The structure and morphology of the f-NC were set apart by SEM, TEM, XRD, XPS, FTIR, Raman, and the electrochemical performance of the f-NC were set apart by CV, EIS and CC. We studied the electrochemical behaviour of 4-NP on the glassy carbon electrode modified with f-NC before and after pyrolysis treatment (denoted as f-NC1/GCE and f-NC2/GCE). In 0.2 M of H2SO4 solution, the f-NC2/GCE has an apparent electrocatalytic activity to reduce 4-NP. Under the optimal conditions, the reduction peak current of 4-NP varies linearly, with its concentration in the range of 0.2 to 100 mM, and the detection limit obtained as 0.02 mM (S/N = 3). In addition, the electrochemical sensor has high selectivity, and the stability is quite good. The preparation and application of the sensor to detect 4-NP in water samples produced satisfactory results, which provides a new method for the simple, sensitive and quantitative detection of 4-NP.
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Affiliation(s)
- Bing Wang
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, China
| | - Quanguo He
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Guangli Li
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
| | - Yaohang Long
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, China
| | - Gongyou Zhang
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, China
| | - Hongmei Liu
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China
- Engineering Research Center of Medical Biotechnology, Guizhou Medical University, Guiyang 550025, China
| | - Jun Liu
- School of Biology and Engineering, Guizhou Medical University, Guiyang 550025, China
- School of Life Science and Chemistry, Hunan University of Technology, Zhuzhou 412007, China
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5
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Jiang T, Maddalena L, Gomez J, Carosio F, Fina A. Polyelectrolytes Enabled Reduced Graphite Oxide Water Dispersions: Effects of the Structure, Molecular Weight, and Charge Density. Polymers (Basel) 2022; 14:polym14194165. [PMID: 36236113 PMCID: PMC9573485 DOI: 10.3390/polym14194165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 09/05/2022] [Accepted: 09/25/2022] [Indexed: 11/21/2022] Open
Abstract
The polyelectrolyte (PE)-based water dispersion of graphene-related materials (GRMs) represents an interesting intermediate for the development of advanced materials by sustainable processes. Although the proof of concept has been demonstrated, there is a lack of knowledge for what concerns the effects of parameters typical of PEs such as functionalization, molecular weight, and charge density. In this work, we evaluate the effects of such parameters on the quality and long-term stability of reduced graphite oxide (rGO) dispersion in aqueous media prepared by ultrasound sonication in the presence of different PEs. Four PEs were evaluated: polyacrylic acid (PAA), branched poly(ethylenimine) (BPEI), sodium carboxymethyl cellulose (CMC), and poly(sodium 4-styrenesulfonic acid) (PSS). The prepared dispersions were thoroughly characterized by means of UV-visible spectroscopy, thermogravimetric analysis, dynamic light scattering, and Raman spectroscopy. The highest concentrations of rGO were achieved by BPEI with a molecular weight of 25,000 and 270,000 Da (33 and 26 µg/mL, respectively). For other PEs, the rGO concentration was found to be independent of the molecular weight. The PAA-based dispersions displayed the best through-time stability while yielding homogeneous dispersion with a smaller average size and narrower size distribution.
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Affiliation(s)
- Tianhui Jiang
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
| | - Lorenza Maddalena
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
| | - Julio Gomez
- AVANZARE Innovacion Tecnologica S.L., 26370 Navarrete, La Rioja, Spain
| | - Federico Carosio
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
- Correspondence:
| | - Alberto Fina
- Department of Applied Science and Technology, Politecnico di Torino, Alessandria Campus, V.le Teresa Michel 5, 15121 Alessandria, Italy
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Shaheen S, Khan RRM, Ahmad A, Luque R, Pervaiz M, Saeed Z, Adnan A. Investigation on the role of graphene-based composites for in photocatalytic degradation of phenol-based compounds in wastewater: a review. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:73718-73740. [PMID: 36087178 DOI: 10.1007/s11356-022-21975-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 07/08/2022] [Indexed: 06/15/2023]
Abstract
The ineptitude of conventional water management systems to eradicate noxious compounds leads to the development of advanced treatment systems. The disclosure of graphene-based photocatalytic degradation for the eradication of phenolic compounds has become the "apple of the eye" for many researchers. This review article describes the advanced research progress during the period of 2008-2021 in graphene-based nanocomposites and discusses their different synthesis methods. We will also talk about the applications of nanocomposite in water splitting, dye degradation, solar fuel generations, and organic transformations. Multicomponent heterojunction structure, co-catalyst cohering, and noble metal coupling have been inspected to enhance the photocatalytic performance of graphene-based composite by increasing charge separation and stability. The photocatalytic system's remarkable stability has been described in terms of facile recyclability. The adsorption ability of phenolic compounds has been addressed in the form of Langmuir and Freundlich adsorption isotherm with various factors (pH, concentration, the intensity of light, the effect of catalyst, the effect of time, etc.). The purpose of this review is to survey mechanisms and processes that enlist graphene-based composite in terms of efficacy and dose of catalyst required to attain 99% degradation. Nanoparticles may cause toxicity and a pretext for their toxicity has been mentioned. Finally, it is anticipated that this article could allocate consequential knowledge to fabricating graphene-based composites that are in crucial demand of being discussed in future research.
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Affiliation(s)
- Shumila Shaheen
- Department of Chemistry, Government College University, Lahore, Pakistan
| | | | - Awais Ahmad
- Departamento de Quimica Organica, Universidad de Cordoba, Ctra Nnal IV-A, Edificio Marie Curie (C-3)Km 396, 14014, Cordoba, Spain
| | - Rafael Luque
- Departamento de Quimica Organica, Universidad de Cordoba, Ctra Nnal IV-A, Edificio Marie Curie (C-3)Km 396, 14014, Cordoba, Spain
- Peoples Friendship University of Russia (RUDN University), Moscow, 6 Miklukho Maklaya str., 117198, Russian Federation
| | - Muhammad Pervaiz
- Department of Chemistry, Government College University, Lahore, Pakistan
| | - Zohaib Saeed
- Department of Chemistry, Government College University, Lahore, Pakistan
| | - Ahmad Adnan
- Department of Chemistry, Government College University, Lahore, Pakistan
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7
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Abdel-Aziz AM, Hassan HH, Badr IHA. Activated Glassy Carbon Electrode as an Electrochemical Sensing Platform for the Determination of 4-Nitrophenol and Dopamine in Real Samples. ACS OMEGA 2022; 7:34127-34135. [PMID: 36188318 PMCID: PMC9520556 DOI: 10.1021/acsomega.2c03427] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 08/31/2022] [Indexed: 06/16/2023]
Abstract
Glassy carbon electrode (GCE) was electrochemically activated using a repetitive cyclic voltammetric technique to develop an activated glassy carbon electrode (AGCE). The developed AGCE was optimized and utilized for the electrochemical assay of 4-nitrophenol (4-NP) and dopamine (DA). Cyclic voltammetry (CV) was employed to investigate the electrochemical behavior of the AGCE. Compared to the bare GCE, the developed AGCE exhibits a significant increase in redox peak currents of 4-NP and DA, which indicates that the AGCE significantly improves the electrocatalytic reduction of 4-NP and oxidation of DA. The electrochemical signature of the activation process could be directly associated with the formation of oxygen-containing surface functional groups (OxSFGs), which are the main reason for the improved electron transfer ability and the enhancement of the electrocatalytic activity of the AGCE. The effects of various parameters on the voltammetric responses of the AGCE toward 4-NP and DA were studied and optimized, including the pH, scan rate, and accumulation time. Differential pulse voltammetry (DPV) was also utilized to investigate the analytical performance of the AGCE sensing platform. The optimized AGCE exhibited linear responses over the concentration ranges of 0.04-65 μM and 65-370 μM toward 4-NP with a lower limit of detection (LOD) of 0.02 μM (S/N = 3). Additionally, the AGCE exhibited a linear responses over the concentration ranges of 0.02-1.0 and 1.0-100 μM toward DA with a lower limit of detection (LOD) of 0.01 μM (S/N = 3). Moreover, the developed AGCE-based 4-NP and DA sensors are distinguished by their high sensitivity, excellent selectivity, and repeatability. The developed sensors were successfully applied for the determination of 4-NP and DA in real samples with satisfactory recovery results.
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Affiliation(s)
- Ali M. Abdel-Aziz
- Chemistry
Department, Faculty of Science, Ain-Shams
University, Cairo 11566, Egypt
| | - Hamdy H. Hassan
- Chemistry
Department, Faculty of Science, Ain-Shams
University, Cairo 11566, Egypt
- Department
of Chemistry, Faculty of Science, Galala
University, New Galala
City, Suez 43511, Egypt
| | - Ibrahim H. A. Badr
- Chemistry
Department, Faculty of Science, Ain-Shams
University, Cairo 11566, Egypt
- Department
of Chemistry, Faculty of Science, Galala
University, New Galala
City, Suez 43511, Egypt
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8
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Sensitive and Selective Electrochemical Sensor for Detecting 4-Nitrophenole using Novel Gold Nanoparticles/Reduced Graphene Oxide/Activated Carbon Nanocomposite. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.130068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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9
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Cu-MOF/N-doped GO nanocomposites modified screen-printed carbon electrode towards detection of 4-nitrophenol. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116542] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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He X, Bai S, Jiang J, Ong WJ, Peng J, Xiong Z, Liao G, Zou J, Li N. Oxygen vacancy mediated step-scheme heterojunction of WO2.9/g-C3N4 for efficient electrochemical sensing of 4-nitrophenol. CHEMICAL ENGINEERING JOURNAL ADVANCES 2021. [DOI: 10.1016/j.ceja.2021.100175] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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11
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Pham TN, Xuan DN, Van TH, Khanh VL, Minh TL, Nguyen VQ, Vu DL, Le AT. Insight into the Influence of Analyte Molecular Structure Targeted on MoS 2-GO-Coated Electrochemical Nanosensors. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:12059-12070. [PMID: 34617771 DOI: 10.1021/acs.langmuir.1c01853] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
MoS2-GO composites were fabricated by an ultrasonication method at room temperature. Raman spectra, emission scanning electron microscopy (SEM), and transmission electron microscopy (TEM) images were used to study the structural characteristics, morphologies, and sizes of the synthesized materials. An MoS2-GO/SPE (screen-printed electrode) was prepared by a facile dropping method and acted as an effective electrochemical sensor toward clenbuterol (CLB) and 4-nitrophenol (4-NP) detection. Based on the obtained results, the influence of analyte molecular structure on the adsorption ability and electronic interoperability between the targeted analyte and electrode surface were investigated in detail and discussed as well, through some electrochemical kinetic parameters (electron/proton-transfer number, electron transfer rate constant (ks), charge transfer coefficient, and adsorption capacity (Γ)). In particular, it should be stressed that 4-NP molecules possess a simple molecular structure with many positive effects (electronic, conjugation, and small steric effects) and flexible functional groups, resulting in fast electron transport/charge diffusion and effective adsorption process as well as strong interactions with the electrode surface. Therefore, 4-NP molecules have been facilitated better in electrochemical reactions at the electrode surface and electrode-electrolyte interfaces, leading to improved current response and electrochemical sensing performance, compared with those of CLB.
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Affiliation(s)
- Tuyet Nhung Pham
- Phenikaa University Nano Institute (PHENA), Phenikaa University, Hanoi 12116, Vietnam
| | - Dinh Ngo Xuan
- Phenikaa University Nano Institute (PHENA), Phenikaa University, Hanoi 12116, Vietnam
| | - Tuan Hoang Van
- Phenikaa University Nano Institute (PHENA), Phenikaa University, Hanoi 12116, Vietnam
| | - Vinh Le Khanh
- Institute of Physics at Ho Chi Minh City, Vietnam Academy of Science and Technology (VAST), Ho Chi Minh 70000, Vietnam
| | - Tung Le Minh
- Department of Physics, Tien Giang University, My Tho city 84100, Tien Giang Province, Vietnam
| | - Van Quy Nguyen
- International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology, Hanoi 10000, Vietnam
| | - Dinh Lam Vu
- Graduate University of Science and Technology (GUST) and Institute for Materials Science (IMS), Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Hanoi 10000, Vietnam
| | - Anh-Tuan Le
- Phenikaa University Nano Institute (PHENA), Phenikaa University, Hanoi 12116, Vietnam
- Faculty of Materials Science and Engineering, Phenikaa University, Hanoi 12116, Vietnam
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12
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Karaboduk K. Modification of screen-printed gold electrode with 1,4-dithiothreitol: application to sensitive voltammetric determination of Sudan II. FOOD QUALITY AND SAFETY 2021. [DOI: 10.1093/fqsafe/fyaa039] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Abstract
Objectives
The aim of this study is to investigate the electrochemical behavior of Sudan II (SuII) using a screen-printed gold electrode (SPGE) modified with 1,4-dithiothreitol (DTT) and to determine the amount of Sudan II by voltammetry.
Materials and Methods
A DTT-modified screen-printed gold electrode (DTT/SPGE) was fabricated and its application for differential pulse voltammetric (DPV) determination of SuII was reported. Fourier transform infrared spectroscopy (FT-IR), cyclic voltammetry and electrochemical impedance spectroscopy were used for the characterization of the modified electrode. The effects of instrumental and chemical parameters were optimized for the determination of SuII. The fabricated electrode was used for the analysis of SuII in fortified and real samples. High-performance liquid chromatography was preferred as a reference method for the evaluation of the obtained voltammetric results.
Results
The electrochemical studies and FT-IR demonstrated that the SPGE was modified with DTT. The obtained peak current at DTT/SPGE was 6.67 times higher than that recorded with SPGE. At the optimized conditions of DPV in pH = 2.5 of H2SO4, the oxidation peak current of SuII was proportional to its concentration in range: 0.001–1.500 μmol l–1 with a detection limit of 0.0002 μmol l–1 (S/N = 3). For the analysis of SuII, 101.67%–104.33% of recovery percentage was obtained.
Conclusions
A new electrode was successfully improved for the determination of SuII. This highly selective and sensitive electrode supplied the fast determination of SuII in ketchup, chili sauce and salsa dip sauce. In addition, voltammetric and chromatographic results are found to be consistent.
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Affiliation(s)
- Kuddusi Karaboduk
- Life Sciences Application and Research Center, Gazi University, Golbasi, Ankara, Turkey
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13
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Danish EY, Bakhsh EM, Akhtar K. Design of chitosan nanocomposite hydrogel for sensitive detection and removal of organic pollutants. Int J Biol Macromol 2020; 159:276-286. [DOI: 10.1016/j.ijbiomac.2020.05.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2020] [Revised: 05/02/2020] [Accepted: 05/05/2020] [Indexed: 12/17/2022]
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14
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Hashemi SA, Mousavi SM, Bahrani S, Ramakrishna S. Integrated polyaniline with graphene oxide-iron tungsten nitride nanoflakes as ultrasensitive electrochemical sensor for precise detection of 4-nitrophenol within aquatic media. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114406] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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15
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Škugor Rončević I, Krivić D, Buljac M, Vladislavić N, Buzuk M. Polyelectrolytes Assembly: A Powerful Tool for Electrochemical Sensing Application. SENSORS (BASEL, SWITZERLAND) 2020; 20:E3211. [PMID: 32517055 PMCID: PMC7313698 DOI: 10.3390/s20113211] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 12/20/2022]
Abstract
The development of sensing coatings, as important sensor elements that integrate functionality, simplicity, chemical stability, and physical stability, has been shown to play a major role in electrochemical sensing system development trends. Simple and versatile assembling procedures and scalability make polyelectrolytes highly convenient for use in electrochemical sensing applications. Polyelectrolytes are mainly used in electrochemical sensor architectures for entrapping (incorporation, immobilization, etc.) various materials into sensing layers. These materials can often increase sensitivity, selectivity, and electronic communications with the electrode substrate, and they can mediate electron transfer between an analyte and transducer. Analytical performance can be significantly improved by the synergistic effect of materials (sensing material, transducer, and mediator) present in these composites. As most reported methods for the preparation of polyelectrolyte-based sensing layers are layer-by-layer and casting/coating methods, this review focuses on the use of the latter methods in the development of electrochemical sensors within the last decade. In contrast to many reviews related to electrochemical sensors that feature polyelectrolytes, this review is focused on architectures of sensing layers and the role of polyelectrolytes in the development of sensing systems. Additionally, the role of polyelectrolytes in the preparation and modification of various nanoparticles, nanoprobes, reporter probes, nanobeads, etc. that are used in electrochemical sensing systems is also reviewed.
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Affiliation(s)
- Ivana Škugor Rončević
- Department of General and Inorganic Chemistry, Faculty of Chemistry and Technology, University of Split, 21000 Split, Croatia; (I.Š.R.); (N.V.)
| | - Denis Krivić
- Division of Biophysics, Gottfried Schatz Research Center, Medical University of Graz, 8036 Graz, Austria;
| | - Maša Buljac
- Department of Environmental Chemistry, Faculty of Chemistry and Technology, University of Split, 21000 Split, Croatia;
| | - Nives Vladislavić
- Department of General and Inorganic Chemistry, Faculty of Chemistry and Technology, University of Split, 21000 Split, Croatia; (I.Š.R.); (N.V.)
| | - Marijo Buzuk
- Department of General and Inorganic Chemistry, Faculty of Chemistry and Technology, University of Split, 21000 Split, Croatia; (I.Š.R.); (N.V.)
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16
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Huang C, Wang Y, Zhao J, Wang D. Potential Effect of Surface Modified Nano‐SiO
2
with PDDA on the Cement Paste Early Hydration. ChemistrySelect 2020. [DOI: 10.1002/slct.201904791] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chunlong Huang
- School of Civil EngineeringSun Yat-sen University No. 135, Xingang Xi Road 510275 Guangzhou Guangdong China
| | - Yiren Wang
- School of Civil EngineeringSun Yat-sen University No. 135, Xingang Xi Road 510275 Guangzhou Guangdong China
| | - Jihui Zhao
- School of Civil EngineeringSun Yat-sen University No. 135, Xingang Xi Road 510275 Guangzhou Guangdong China
- Southern Marine Science and Engineering Guangdong Laboratory Zhuhai 519082 Guangdong China
| | - Dongmin Wang
- Department of Chemical EngineeringChina University of Mining and Technology (Beijing) Ding No.11 Xueyuan Road, Haidian District Beijing China
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17
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Renganathan V, Balaji R, Chen SM, Singh V. The electrochemical determination of hazardous 4-hydroxynitrobenzene using NiS2 decorated graphene oxide nanocomposite in the river water sample. Microchem J 2020. [DOI: 10.1016/j.microc.2019.104502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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18
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Rahman MM. Selective capturing of phenolic derivative by a binary metal oxide microcubes for its detection. Sci Rep 2019; 9:19234. [PMID: 31848430 PMCID: PMC6917752 DOI: 10.1038/s41598-019-55891-4] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2019] [Accepted: 12/04/2019] [Indexed: 12/16/2022] Open
Abstract
Development of highly efficient and potential material for toxic p-nitrophenol is an important design for sensitive detection of hazardous species from ecology and environment. Here it is developed, an efficient as well as selective of p-nitrophenol using binary material by electrochemical performances, including good linearity, lower detection limit, good stability, higher reproducibility and extreme sensitivity. The prepared electrode was fabricated by immobilization of SnO2/CdO microcubes (MCs) with conducting coating binders by using well-known glassy carbon electrode (GCE). The proposed MCs with SnO2/CdO were well-functionalized and prepared by facile hydrothermal technique. The general instrumentation namely, FTIR, UV/vis, FESEM, XPS, TEM, EDS, and powder XRD were employed for the morphological evaluation of the prepared doped MCs, structural, optical and elemental analyses. The large dynamic range (LDR) from 1.0 to 0.01 mM with 0.13 pM detection limit (S/N = 3), limit of quantification (LOQ; 0.43 pM), and an excellent sensitivity of 7.12 µAµM−1cm−2 were exhibited by the fabricated binary material based on SnO2/CdO MCs for selective p-nitrophenol capturing. In shortly, the SnO2/CdO MCs can be employed as an efficient electron mediator with binary materials fabricated GCE for capturing the p-nitrophenol at ultra-trace amounts. Then the binary synthesized material of SnO2/CdO MCs is used as potential and sensitive sensor layer by stable electrochemical approach for sensitive capturing of toxic p-nitrophenol from environmental samples.
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Affiliation(s)
- Mohammed Muzibur Rahman
- Department of Chemistry, King Abdulaziz University, Jeddah, 21589, P.O. Box 80203, Saudi Arabia.
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19
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Xie Y, Tu X, Ma X, Fang Q, Lu L, Yu Y, Liu G, Liu C. High-performance voltammetric sensor for dichlorophenol based on β-cyclodextrin functionalized boron-doped graphene composite aerogels. NANOTECHNOLOGY 2019; 30:185502. [PMID: 30669127 DOI: 10.1088/1361-6528/ab0092] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
2, 2-methylenebis (4-chlorophenol) (dichlorophenol, Dcp) is a priority pollutant that poses a serious health threat to the public. Thus, the sensitive analysis of Dcp is of great significance. Heteroatom-doped carbon nanomaterials modified electrodes have been proven to be good electrocatalysts for electrochemical sensing application. β-cyclodextrin (β-CD) as a signal amplifier has also been utilized in biosensors. Inspired by these, in this study, a new composite of β-CD and three-dimensional (3D) boron-doped graphene aerogels (BGAs/β-CD) has been designed as a high-performance electrochemical sensing platform for Dcp determination. Graphene aerogels possess high specific surface area, large pore volume and good conductivity, which ensure rapid mass transfer and accelerated electron transfer. Besides, boron doping causes uneven charge distribution on the graphene lattice surface, producing a large amount of flowing π electrons, which provide abundant active sites for the catalytic oxidation reaction of Dcp. In addition, Dcp molecules could be captured into β-CD through host-guest recognition, which can effectively amplify the detection signal. Combining the merits of BGAs and β-CD, the BGAs/β-CD based sensor achieved sensitive detection of Dcp. Under optimized experimental conditions, the oxidation currents and the concentration of Dcp had a good linear relationship within 1.0 nM ∼ 21 μM. The detection limit was estimated as 0.33 nM (S/N = 3). This study might provide a new basis for the fabrication of 3D BG-based aerogel architectural material and its application in Dcp detection.
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Affiliation(s)
- Yu Xie
- Key Laboratory of Crop Physiology, Ecology and Genetic Breeding, Ministry of Education, Institute of Functional Materials and Agricultural Applied Chemistry, College of Science, Jiangxi Agricultural University, Nanchang 330045, People's Republic of China
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20
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Khan SB, Ali F, Akhtar K. Chitosan nanocomposite fibers supported copper nanoparticles based perceptive sensor and active catalyst for nitrophenol in real water. Carbohydr Polym 2019; 207:650-662. [DOI: 10.1016/j.carbpol.2018.12.032] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Revised: 12/09/2018] [Accepted: 12/11/2018] [Indexed: 01/22/2023]
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21
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Rahman M, Alam MM, Asiri AM. 2-Nitrophenol sensor-based wet-chemically prepared binary doped Co3O4/Al2O3 nanosheets by an electrochemical approach. RSC Adv 2018; 8:960-970. [PMID: 35538940 PMCID: PMC9077016 DOI: 10.1039/c7ra10866d] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Accepted: 12/11/2017] [Indexed: 01/20/2023] Open
Abstract
Herein, the wet-chemical process (co-precipitation) was used to prepare nanosheets (NSs) of Co3O4/Al2O3 in an alkaline medium (pH ∼ 10.5). The synthesized NSs were totally characterized by Fourier-transform infrared spectroscopy (FTIR), ultraviolet visible spectroscopy (UV/vis), field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), X-ray photoelectron spectroscopy (XPS), and powder X-ray diffraction (XRD). The synthesized NSs were deposited onto a glassy carbon electrode (GCE) to prepare a very thin layer with a conducting binder for detecting 2-nitrophenol (2-NP) selectively by a reliable electrochemical method. The proposed chemical sensor exhibits good sensitivity (54.9842 μA μM−1 cm−2), long-term stability, and enhanced chemical response by electrochemical approaches. The resultant current is found to be linear over the concentration range (LDR) from 0.01 nM to 0.01 mM. The estimated detection limit (DL) is equal to 1.73 ± 0.02 pM. This study introduces a potential route for future sensitive sensor development with Co3O4/Al2O3 NSs by an electrochemical approach for the selective detection of hazardous and carcinogenic chemicals in environmental and health care fields. This potential research work introduces a route of future sensitive sensor development with Co3O4/Al2O3 NSs by electrochemical approach to selective detection of hazardous and carcinogenic chemicals in environmental and health care fields.![]()
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Affiliation(s)
- Mohammed M. Rahman
- Chemistry Department
- King Abdulaziz University
- Faculty of Science
- Jeddah 21589
- Saudi Arabia
| | - M. M. Alam
- Department of Chemical Engineering and Polymer Science
- Shahjalal University of Science and Technology
- Sylhet 3100
- Bangladesh
| | - Abdullah M. Asiri
- Chemistry Department
- King Abdulaziz University
- Faculty of Science
- Jeddah 21589
- Saudi Arabia
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22
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Facile synthesis of Co xP decorated porous carbon microspheres for ultrasensitive detection of 4-nitrophenol. Talanta 2017; 179:448-455. [PMID: 29310259 DOI: 10.1016/j.talanta.2017.11.046] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2017] [Revised: 11/01/2017] [Accepted: 11/16/2017] [Indexed: 11/21/2022]
Abstract
A novel cobalt phosphide (CoxP, a mixture of CoP and Co2P) embedded within nitrogen-doped porous carbon microspheres was facilely prepared by pyrolysis of a composite precursor. The composite precursor was achieved by in-situ growth of Co-based zeolitic imidazolate framework (ZIF-67) on the Zn(PO4)x microspheres. The as-prepared CoxP decorated nitrogen-doped porous carbon microspheres (CoxP/NC) possess uniform distribution of graphite-encapsulated CoxP, a large surface area (826m2g-1) and abundant mesopores. It was found the CoxP/NC exhibited excellent electrocatalytic performances toward 4-nitrophenol (4-NP). Therefore, CoxP/NC was developed to fabricate an ultrasensitive electrochemical sensor for 4-NP by using differential pulse voltammetry (DPV). In comparison with glassy carbon electrode (GCE) and nitrogen-doped carbon (NC) modified GCE, the CoxP/NC modified GCE (CoxP/NC/GCE) showed a remarkable increase in DPV current toward 4-NP. Under optimized condition, an ultrahigh sensitivity of 20.9 (μA μmol-1 L) and a low detection limit of 2 × 10-9molL-1 (at a signal-to-noise ratio of 3, S/N = 3) for 4-NP were achieved. Additionally, the CoxP/NC/GCE was successfully applied to detect 4-NP in tap water with good recoveries for its attractive selectivity and repeatability, which indicated that CoxP/NC could be a promising candidate for analyzing 4-NP.
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23
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Electrochemical synthesis of nickel–cobalt oxide nanoparticles on the glassy carbon electrode and its application for the voltammetric determination of 4-nitrophenol. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2017. [DOI: 10.1007/s13738-017-1159-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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24
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Fu Y, Wang L, Duan Y, Zou L, Ye B. Facile synthesized SnO 2 decorated functionalized graphene modified electrode for sensitive determination of daidzein. Talanta 2017; 168:1-9. [DOI: 10.1016/j.talanta.2017.03.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2017] [Revised: 03/02/2017] [Accepted: 03/02/2017] [Indexed: 01/08/2023]
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25
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Wiench P, Grzyb B, González Z, Menéndez R, Handke B, Gryglewicz G. pH robust electrochemical detection of 4-nitrophenol on a reduced graphene oxide modified glassy carbon electrode. J Electroanal Chem (Lausanne) 2017. [DOI: 10.1016/j.jelechem.2017.01.040] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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26
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Layer-by-layer assembly of functionalized reduced graphene oxide for direct electrochemistry and glucose detection. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 68:739-745. [DOI: 10.1016/j.msec.2016.06.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 05/16/2016] [Accepted: 06/01/2016] [Indexed: 11/19/2022]
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27
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Jović A, Đorđević A, Čebela M, Stojković Simatović I, Hercigonja R, Šljukić B. Composite zeolite/carbonized polyaniline electrodes for p–nitrophenol sensing. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.08.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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28
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Li H, Sheng K, Xie Z, Zou L, Ye B. Highly sensitive determination of hyperin on poly(diallyldimethylammonium chloride)-functionalized graphene modified electrode. J Electroanal Chem (Lausanne) 2016. [DOI: 10.1016/j.jelechem.2016.06.044] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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29
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Chen D, Peng R, Zhou H, Liu H. Sensitive determination of 4-nitrophenol based on its enhancement of a peroxyoxalate chemiluminescence system containing graphene oxide quantum dots and fluorescein. Mikrochim Acta 2016. [DOI: 10.1007/s00604-016-1799-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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30
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Geng S, Lin SM, Liu SG, Li NB, Luo HQ. A new fluorescent sensor for detecting p-nitrophenol based on β-cyclodextrin-capped ZnO quantum dots. RSC Adv 2016. [DOI: 10.1039/c6ra17378k] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Water-soluble fluorescent β-cyclodextrin-capped ZnO QDs were synthesized and used to detect p-NP, and the quenching mechanism was discussed.
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Affiliation(s)
- Shuo Geng
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
| | - Shu Min Lin
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
| | - Shi Gang Liu
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
| | - Nian Bing Li
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
| | - Hong Qun Luo
- Key Laboratory of Eco-Environments in Three Gorges Reservoir Region (Ministry of Education)
- School of Chemistry and Chemical Engineering
- Southwest University
- Chongqing 400715
- PR China
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31
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Wang Y, Zhou L, Wang S, Li J, Tang J, Wang S, Wang Y. Sensitive and selective detection of Hg2+ based on an electrochemical platform of PDDA functionalized rGO and glutaraldehyde cross-linked chitosan composite film. RSC Adv 2016. [DOI: 10.1039/c6ra10075a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, a uniform PDDA-functionalized graphene composite film (GA–CS@PDDA-rGO) was utilized for detection of trace Hg2+ by using glutaraldehyde cross-linked chitosan (GA–CS) as a Hg2+-chelating adsorbent and film-forming agent.
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Affiliation(s)
- Yongxiang Wang
- School of Chemistry and Molecular Engineering
- East-China University of Science and Technology
- Shanghai
- China
| | - Lihui Zhou
- School of Chemistry and Molecular Engineering
- East-China University of Science and Technology
- Shanghai
- China
| | - Sen Wang
- School of Chemistry and Molecular Engineering
- East-China University of Science and Technology
- Shanghai
- China
| | - Jinxia Li
- School of Chemistry and Molecular Engineering
- East-China University of Science and Technology
- Shanghai
- China
| | - Jing Tang
- School of Chemistry and Molecular Engineering
- East-China University of Science and Technology
- Shanghai
- China
| | - Shaolei Wang
- School of Chemistry and Molecular Engineering
- East-China University of Science and Technology
- Shanghai
- China
| | - Ying Wang
- School of Chemistry and Molecular Engineering
- East-China University of Science and Technology
- Shanghai
- China
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32
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Arulraj AD, Vijayan M, Vasantha VS. Highly selective and sensitive simple sensor based on electrochemically treated nano polypyrrole-sodium dodecyl sulphate film for the detection of para-nitrophenol. Anal Chim Acta 2015; 899:66-74. [DOI: 10.1016/j.aca.2015.09.055] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 09/10/2015] [Accepted: 09/30/2015] [Indexed: 10/22/2022]
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33
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Okoth OK, Yan K, Liu L, Zhang J. Simultaneous Electrochemical Determination of Paracetamol and Diclofenac Based on Poly(diallyldimethylammonium chloride) Functionalized Graphene. ELECTROANAL 2015. [DOI: 10.1002/elan.201500360] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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34
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YAN K, ZHU Y, CHENG L, ZHANG J. Visible Light-driven Photoelectrochemical Determination of p-Nitrophenol Based on CdSe Quantum Dots and DNA Composite Film Modified Electrode. ANAL SCI 2015; 31:669-75. [DOI: 10.2116/analsci.31.669] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Kai YAN
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology
| | - Yuhan ZHU
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology
| | - Ling CHENG
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology
| | - Jingdong ZHANG
- Key Laboratory for Large-Format Battery Materials and System (Ministry of Education), School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology
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