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Subramanian K, Rathinam Y, Ganesan R, Venkatasamy RS. Investigation of g-C 3N 4/Ce 2(WO 4) 3 Nanocomposites for the Removal of Basic Dyes. ACS OMEGA 2024; 9:10110-10118. [PMID: 38463307 PMCID: PMC10918798 DOI: 10.1021/acsomega.3c06147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2023] [Revised: 01/30/2024] [Accepted: 02/09/2024] [Indexed: 03/12/2024]
Abstract
Herein, we have synthesized pristine and g-C3N4-assisted Ce2(WO4)3 via a facile hydrothermal method. The structure was confirmed with the standard JCPDS card. g-C3N4 encapsulated the crystal and reduced the size. The Raman spectra revealed the presence of Ce-O, W-O stretching and bending vibrations. Electron hole transfer facilitation and controllable recombination were altered by g-C3N4 heterojunction with cerium tungstate. Ce2(WO4)3 possessed a larger band gap. As g-C3N4 was assisted, the band gap was reduced which facilitates Ce2(WO4)3 to utilize more visible light. The prepared photocatalysts were used to investigate the model pollutant removal with visible light. The pure Janus Green B sample showed lesser efficiency, as it does not show self-degradation under light. As Ce2(WO4)3 was added, it slightly improved the efficiency as it possesses lower electron hole transfer and high recombination. Thus, g-C3N4 was composited with Ce2(WO4)3 to make heterojunctions which will enhance the photo-excited electron and hole transfer and decrease e-/h+ recombination. The rate constant values of the photocatalysts were calculated, and the system follows the first-order pseudo-kinetic model. Ciprofloxacin, a well-known antibiotic, was also used to degrade under visible light. The pure sample showed lower efficiency, and the antibiotic was reduced well with the addition of prepared photocatalysts. The modification of Ce2(WO4)3 with the optimum-level g-C3N4 facilitated electron hole charge transfer, and numerous adsorbed dye molecules on the photocatalyst surface made 0.1 g g-C3N4-Ce2(WO4)3 a plausible photocatalyst for the water remediation process.
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Affiliation(s)
| | - Yuvakkumar Rathinam
- Department of Physics, Alagappa University, Karaikudi, Tamil Nadu 630 003, India
| | - Ravi Ganesan
- Department of Physics, Alagappa University, Karaikudi, Tamil Nadu 630 003, India
- Department of Physics, Chandigarh University, Mohali, Punjab 140 413, India
| | - Ravi Sankar Venkatasamy
- Department of Civil Engineering, Thiagarajar College of Engineering, Madurai, Tamil Nadu 625015, India
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2
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Bhuvaneswari C, Elangovan A, Sharmila C, Sudha K, Arivazhagan G. Fabrication of cobalt tungstate/N-rGO nanocomposite: Application towards the detection of antibiotic drug-Furazolidone. Colloids Surf A Physicochem Eng Asp 2023. [DOI: 10.1016/j.colsurfa.2022.130299] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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3
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Electrochemical nitric oxide detection using gold deposited cobalt oxide nanostructures. Chem Phys Lett 2022. [DOI: 10.1016/j.cplett.2022.139795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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4
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Peroxidase Effect of Ce
2
(WO
4
)
3
Nanoparticles to Detection of Glucose as a Colorimetric Sensor. ChemistrySelect 2022. [DOI: 10.1002/slct.202104389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Electrochemical Analysis of Sulfisoxazole Using Glassy Carbon Electrode (GCE) and MWCNTs/Rare Earth Oxide (CeO 2 and Yb 2O 3) Modified-GCE Sensors. Molecules 2022; 27:molecules27062033. [PMID: 35335394 PMCID: PMC8953271 DOI: 10.3390/molecules27062033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2022] [Revised: 03/17/2022] [Accepted: 03/19/2022] [Indexed: 11/17/2022] Open
Abstract
In this work, new electrochemical sensors based on the modification of glassy carbon electrode (GCE) with multiwalled carbon nanotubes (MWCNTs)-rare metal oxides (REMO) nanocomposites were fabricated by drop-to-drop method of MWCNTs-REMO dispersion in ethanol. REMO nanoparticles were synthesized by precipitation followed by hydrothermal treatment at 180 °C in absence and presence of TritonTM X-100 surfactant. Cyclic voltammetry (CV) analysis using MWCNTs-CeO2@GCE and MWCNTs-Yb2O3@GCE sensors were used for the analysis of sulfisoxazole (SFX) drug in water samples. The results of CV analysis showed that MWCNTs-REMO@GCE sensors have up to 40-fold higher sensitivity with CeO2 compared to the bare GCE sensor. The estimated values of the limit of detection (LoD) of this electrochemical sensing using MWCNTs-CeO2@GCE and MWCNTs-Yb2O3@GCE electrodes reached 0.4 and 0.7 μM SFX in phosphate buffer pH = 7, respectively. These findings indicate that MWCNTs-REMO@GCE electrodes are potential sensors for analysis of sulfonamide drugs in water and biological samples.
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Salhi O, Ez-zine T, Oularbi L, El Rhazi M. Cysteine combined with carbon black as support for electrodeposition of poly (1,8-Diaminonaphthalene): Application as sensing material for efficient determination of nitrite ions. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.103820] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023] Open
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Exploitation the unique acidity of novel cerium-tungstate catalysts in the preparation of indole derivatives under eco-friendly acid catalyzed Fischer indole reaction protocol. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103670] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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8
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Ndebele N, Mgidlana S, nyokong T. Electrochemical Detection of Nitrite Using an Asymmetrically Substituted Cobalt Phthalocyanine Conjugated to Metal Tungstate Nanoparticles. ELECTROANAL 2022. [DOI: 10.1002/elan.202100396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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9
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Shenashen MA, Emran MY, El Sabagh A, Selim MM, Elmarakbi A, El-Safty SA. Progress in sensory devices of pesticides, pathogens, coronavirus, and chemical additives and hazards in food assessment: Food safety concerns. PROGRESS IN MATERIALS SCIENCE 2022; 124:100866. [DOI: 10.1016/j.pmatsci.2021.100866] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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10
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Electroanalytical detection of amlodipine in urine and pharmaceutical samples using Ag-Ce2(WO4)3@CNF nanocomposite-modified glassy carbon electrode. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106138] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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11
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Cao W, Ju P, Wang Z, Zhang Y, Zhai X, Jiang F, Sun C. Colorimetric detection of H 2O 2 based on the enhanced peroxidase mimetic activity of nanoparticles decorated Ce 2(WO 4) 3 nanosheets. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 239:118499. [PMID: 32470815 DOI: 10.1016/j.saa.2020.118499] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2020] [Revised: 05/13/2020] [Accepted: 05/16/2020] [Indexed: 05/08/2023]
Abstract
In this paper, nanoparticles decorated Ce2(WO4)3 nanosheets (CWNSs) with negative potential and large specific surface area were synthesized and developed as highly efficient peroxidase mimics for colorimetric detection of H2O2. CWNSs can efficiently catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) in the presence of H2O2 to induce an obvious color variation. Kinetic analysis indicated that the catalytic behaviors of CWNSs obey the typical Michaelis-Menten mechanism. The peroxidase-like catalytic mechanism of CWNSs was proposed according to the active species trapping experiments, verifying that ·O2- radicals played primary roles in the catalytic reaction. Based on the strong and stable peroxidase-like catalytic activity of CWNSs, a simple, rapid, selective, and ultrasensitive method was successfully established for colorimetric detection of H2O2. The method has a good linear response ranging from 0.5 μM to 100 μM for H2O2 concentration with a lower detection limit of 0.15 μM. Benefitting from the sensitive response and good stability, the method is applied in real sample detection and shows a favorable reproducibility and feasibility. This work not only provides a novel enzymatic mimics with remarkable catalytic activities for biomedical and environmental analysis, but also extends the application area of Ce2(WO4)3 materials.
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Affiliation(s)
- Wei Cao
- College of Chemistry and Chemical Engineering, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, PR China; Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources (MNR), 6 Xianxialing Road, Qingdao 266061, PR China
| | - Peng Ju
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources (MNR), 6 Xianxialing Road, Qingdao 266061, PR China; Laboratory for Marine Ecology and Environmental Science, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, PR China; Shandong Key Laboratory of Corrosion Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, PR China.
| | - Zhe Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, 238 Songling Road, Qingdao 266100, PR China; Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources (MNR), 6 Xianxialing Road, Qingdao 266061, PR China
| | - Yu Zhang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources (MNR), 6 Xianxialing Road, Qingdao 266061, PR China
| | - Xiaofan Zhai
- Shandong Key Laboratory of Corrosion Science, Institute of Oceanology, Chinese Academy of Sciences, 7 Nanhai Road, Qingdao 266071, PR China; Open Studio for Marine Corrosion and Protection, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, PR China
| | - Fenghua Jiang
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources (MNR), 6 Xianxialing Road, Qingdao 266061, PR China
| | - Chengjun Sun
- Key Laboratory of Marine Eco-Environmental Science and Technology, Marine Bioresource and Environment Research Center, First Institute of Oceanography, Ministry of Natural Resources (MNR), 6 Xianxialing Road, Qingdao 266061, PR China; Laboratory of Marine Drugs and Bioproducts, Pilot National Laboratory for Marine Science and Technology (Qingdao), 1 Wenhai Road, Qingdao 266237, PR China
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Sundaresan P, Gnanaprakasam P, Chen SM, Mangalaraja RV, Lei W, Hao Q. Simple sonochemical synthesis of lanthanum tungstate (La 2(WO 4) 3) nanoparticles as an enhanced electrocatalyst for the selective electrochemical determination of anti-scald-inhibitor diphenylamine. ULTRASONICS SONOCHEMISTRY 2019; 58:104647. [PMID: 31450323 DOI: 10.1016/j.ultsonch.2019.104647] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 06/14/2019] [Accepted: 06/17/2019] [Indexed: 06/10/2023]
Abstract
In this work, lanthanum tungstate (La2(WO4)3) nanoparticles (NPs) were synthesized by facile sonochemical method (elmasonic P, under-sonication 37/100 kHz, ~60 W energy) and utilized as an electrode material for the selective and sensitive electrochemical determination of anti-scald inhibitor diphenylamine (DPA). The synthesized La2(WO4)3 NPs were characterized by X-ray diffraction (XRD), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive x-ray spectroscopy (EDAX), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) analyses. The results revealed that the sonochemically synthesized La2(WO4)3 nanoparticles were with high crystallinity and uniformly distributed nanoparticles like structure. The as-prepared lanthanum tungstate NPs exhibited an excellent electrocatalytic behavior for DPA determination with the lowest detection limit of 0.0024 µM, wide linear range response of 0.01-58.06 µM and a remarkable sensitivity of 1.021 µA µM-1 cm-2. Furthermore, La2(WO4)3 NPs showed a good recovery to DPA in apple juice sample. Besides, the electrochemical mechanism of the DPA oxidation reaction was provided in detail.
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Affiliation(s)
- Periyasamy Sundaresan
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Periyasami Gnanaprakasam
- Advanced Ceramics and Nanotechnology, Department of Materials Engineering, University of Concepción, Concepción, Chile
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
| | - Ramalinga Viswanathan Mangalaraja
- Advanced Ceramics and Nanotechnology, Department of Materials Engineering, University of Concepción, Concepción, Chile; Technological Development Unit (UDT), University of Concepción, Concepción, Chile
| | - Wu Lei
- School of Chemical Engineering, Nanjing University of Science and Technology, 210094, PR China
| | - Qingli Hao
- School of Chemical Engineering, Nanjing University of Science and Technology, 210094, PR China.
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Periyasamy S, Vinoth Kumar J, Chen SM, Annamalai Y, Karthik R, Erumaipatty Rajagounder N. Structural Insights on 2D Gadolinium Tungstate Nanoflake: A Promising Electrocatalyst for Sensor and Photocatalyst for the Degradation of Postharvest Fungicide (Carbendazim). ACS APPLIED MATERIALS & INTERFACES 2019; 11:37172-37183. [PMID: 31566953 DOI: 10.1021/acsami.9b07336] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Gadolinium tungstate (Gd2(WO4)3) has acquired much attention owing to its exclusive transport properties and excellent thermal and chemical stability. In this work, we demonstrate that two-dimensional (2D) gadolinium tungstate nanoflakes (GW Nfs) are synthesized by a coprecipitation method and represent novel architectures for efficient catalysis, which could be used in electrochemical sensing and photocatalytic degradation of the postharvest fungicide carbendazim (CBZ). The physicochemical properties of GW Nfs were studied by using XRD, Raman, TEM, EDX, and XPS, which show the formation of GW as a nanoflake-like structure with a well crystallized nature. The as-prepared GW Nfs revealed an admirable electrochemical response for CBZ detection with an LOD of 0.005 μM, a wide-ranging linear response of 0.02 to 40 μM, and a notable sensitivity of 0.39 μA μM-1 cm-2. Furthermore, the GW-Nf-modified electrode has a good recovery for CBZ in the study of real samples such as rice and soil washed water samples. Moreover, GW Nfs have a promising photocatalytic activity for CBZ degradation. The GW Nfs could degrade CBZ at greater than 98% efficiency and mineralize above 74% of the CBZ molecules in the presence of visible light irradiation with superior stability even after many cycles. Subsequently, the electrochemical and photocatalytic mechanisms were provided in detail.
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Affiliation(s)
- Sundaresan Periyasamy
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Jeyaraj Vinoth Kumar
- Department of Chemistry, Nanomaterials Laboratory, International Research Center , Kalasalingam Academy of Research and Education , Krishnankoil 626 126 , Tamil Nadu , India
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Yamuna Annamalai
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Raj Karthik
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology , National Taipei University of Technology , No.1, Section 3, Chung-Hsiao East Road , Taipei 106 , Taiwan (R.O.C)
| | - Nagarajan Erumaipatty Rajagounder
- Department of Chemistry, Nanomaterials Laboratory, International Research Center , Kalasalingam Academy of Research and Education , Krishnankoil 626 126 , Tamil Nadu , India
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Sundaresan P, Karthik R, Chen SM, Vinoth Kumar J, Muthuraj V, Nagarajan ER. Ultrasonication-assisted synthesis of sphere-like strontium cerate nanoparticles (SrCeO 3 NPs) for the selective electrochemical detection of calcium channel antagonists nifedipine. ULTRASONICS SONOCHEMISTRY 2019; 53:44-54. [PMID: 30559078 DOI: 10.1016/j.ultsonch.2018.12.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Revised: 12/05/2018] [Accepted: 12/08/2018] [Indexed: 06/09/2023]
Abstract
In this work, strontium cerate nanoparticles (SrCeO3 NPs, SC NPs) were developed through facile synthetic techniques (Ultrasound-Assisted (UA) and Stirring-Assisted (SA) synthesis) and utilized as an electrocatalyst for the selective and sensitive electrochemical detection of calcium channel blocker nifedipine (NDF). The as-prepared UASC NPs and SASC NPs were characterized using XRD, Raman, TEM, EDS, mapping, XPS and BET analysis which exposed the formation of SC NPs in the form of spherical in shape and well crystalline in nature. BET studies reveal that UASC NPs have maximum surface area than that of SASC NPs. Further, the use of the as-developed UASC NPs and SASC NPs as an electrocatalyst for the detection of NDF. Interestingly, the UASC NPs modified screen printed carbon electrode (UASC NPs/SPCE) exhibited an excellent electrocatalytic activity in terms of lower reduction potential and enhanced reduction peak current when compared to SASC NPs and unmodified SPCE. Moreover, as-prepared UASC NPs/SPCE displayed wide linear response range (LR, 0.02-174 µM), lower detection limit (LOD, 5 nM) and good sensitivity (1.31 µA µM-1 cm-2) than that of SASC NPs (LR = 0.02-157 µM, LOD = 6.4 nM, sensitivity - 1.27 µA µM-1cm-2). Furthermore, UASC NPs/SPCE showed an excellent selectivity even in the existence of potentially co-interfering compounds such as similar functional group containing drugs, pollutants, biological substances and some common cations/anions. The developed sensor was successfully employed for the determination of NDF in real lake water, commercial NDF tablet and urine samples with acceptable recovery.
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Affiliation(s)
- Periyasamy Sundaresan
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Raj Karthik
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC
| | - Shen-Ming Chen
- Electroanalysis and Bioelectrochemistry Lab, Department of Chemical Engineering and Biotechnology, National Taipei University of Technology, No. 1, Section 3, Chung-Hsiao East Road, Taipei 106, Taiwan, ROC.
| | - Jeyaraj Vinoth Kumar
- Department of Chemistry, VHNSN College, Virudhunagar 626001, Tamil Nadu, India; Department of Chemistry, Nanomaterials Laboratory, IRC, Kalasalingam Academy of Research and Education, Krishnankoil 626 126, Tamil Nadu, India
| | - Velluchamy Muthuraj
- Department of Chemistry, VHNSN College, Virudhunagar 626001, Tamil Nadu, India
| | - E R Nagarajan
- Department of Chemistry, Nanomaterials Laboratory, IRC, Kalasalingam Academy of Research and Education, Krishnankoil 626 126, Tamil Nadu, India
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Ning J, Luo X, Wang M, Li J, Liu D, Rong H, Chen D, Wang J. Ultrasensitive Electrochemical Sensor Based on Polyelectrolyte Composite Film Decorated Glassy Carbon Electrode for Detection of Nitrite in Curing Food at Sub-Micromolar Level. Molecules 2018; 23:molecules23102580. [PMID: 30304828 PMCID: PMC6222513 DOI: 10.3390/molecules23102580] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 09/28/2018] [Accepted: 10/05/2018] [Indexed: 01/26/2023] Open
Abstract
To ensure food quality and safety, developing cost-effective, rapid and precision analytical techniques for quantitative detection of nitrite is highly desirable. Herein, a novel electrochemical sensor based on the sodium cellulose sulfate/poly (dimethyl diallyl ammonium chloride) (NaCS/PDMDAAC) composite film modified glass carbon electrode (NaCS/PDMDAAC/GCE) was proposed toward the detection of nitrite at sub-micromolar level, aiming to make full use of the inherent properties of individual component (biocompatible, low cost, good electrical conductivity for PDMDAAC; non-toxic, abundant raw materials, good film forming ability for NaCS) and synergistic enhancement effect. The NaCS/PDMDAAC/GCE was fabricated by a simple drop-casting method. Electrochemical behaviors of nitrite at NaCS/PDMDAAC/GCE were investigated by cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Under optimum conditions, the NaCS/PDMDAAC/GCE exhibits a wide linear response region of 4.0 × 10−8 mol·L−1~1.5 × 10−4 mol·L−1 and a low detection 1imit of 43 nmol·L−1. The NaCS/PDMDAAC shows a synergetic enhancement effect toward the oxidation of nitrite, and the sensing performance is much better than the previous reports. Moreover, the NaCS/PDMDAAC also shows good stability and reproducibility. The NaCS/PDMDAAC/GCE was successfully applied to the determination of nitrite in ham sausage with satisfactory results.
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Affiliation(s)
- Jingheng Ning
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Xin Luo
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Min Wang
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Jiaojiao Li
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Donglin Liu
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Hou Rong
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Donger Chen
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
| | - Jianhui Wang
- School of Chemistry and Biological Engineering, Changsha University of Science & Technology, Changsha 410110, China.
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Ghanei-Motlagh M, Taher MA. A novel electrochemical sensor based on silver/halloysite nanotube/molybdenum disulfide nanocomposite for efficient nitrite sensing. Biosens Bioelectron 2018; 109:279-285. [DOI: 10.1016/j.bios.2018.02.057] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 02/12/2018] [Accepted: 02/26/2018] [Indexed: 02/01/2023]
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