Journal ArticleDOI
Towards green synthesis of monodisperse Cu nanoparticles: An efficient and high sensitive electrochemical nitrite sensor
Devaraj Manoj,Devaraj Manoj,Rajendran Saravanan,J. Santhanalakshmi,Shilpi Agarwal,Vinod Kumar Gupta,Vinod Kumar Gupta,Rabah Boukherroub +7 more
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In this article, the development of highly stable and biocompatible Cu nanocomposite has been employed as an electrocatalytic active material for electrochemical sensing, and the synthesis of carboxymethyl cellulose (CMC) stabilized Cu nanoparticles in aqueous medium under room temperature has been carried out.Abstract:
The development of highly stable and biocompatible Cu nanocomposite has been employed herein as an electrocatalytic active material for electrochemical sensing. The synthesis of carboxymethyl cellulose (CMC) stabilized Cu nanoparticles in aqueous medium under room temperature has been carried out. To identify the surface properties of the synthesized Cu nanoparticles, X-ray diffraction (XRD) and X-ray photoelectron spectroscopic (XPS) studies have been carried out. The as-prepared Cu nanoparticles were dispersed with multi-walled carbon nanotubes (MWCNTs) and the resultant dispersion has been deposited over glassy carbon (GC) electrode to obtain Cu/MWCNTs/GC modified electrode. The Cu/MWCNTs modified GC electrode exhibits a well-defined oxidation peak at Epa = 0.93 V (vs. SCE) towards the oxidation of nitrite. Amperometric investigations of the modified electrode revealed a wide linear range for nitrite from 5 μM to 1260 μM with a sensitivity and detection limit of 455.84 μA mM−1 cm−2 and 1.8 μM, respectively. The proposed modified electrode displayed excellent selectivity and reproducibility and has been successfully utilized for determination of nitrite in real samples.read more
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Advances in green synthesis of nanoparticles
Aman Gour,Narendra K. Jain +1 more
TL;DR: In this review, the perspectives by which metal particles can be integrated from green methods in the perspective of green methods utilized in the NPs combination are covered.
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Role of conducting polymer and metal oxide-based hybrids for applications in ampereometric sensors and biosensors
B.S. Dakshayini,Kakarla Raghava Reddy,Amit Mishra,Nagaraj P. Shetti,Shweta J. Malode,Soumen Basu,S. Naveen,Anjanapura V. Raghu +7 more
TL;DR: In this article, a review of the recent achievements of electrochemical biosensors and sensor performance of various nanostructured conducting polymers and various metal oxides is presented.
Journal ArticleDOI
Green-Synthesized Rice-Shaped Copper Oxide Nanoparticles Using Caesalpinia bonducella Seed Extract and Their Applications.
TL;DR: The newly synthesized CuO Nps proved to be an interesting material for electrochemical and biological studies and showed good stability and reproducibility over a period of 120 days.
Journal ArticleDOI
Preparing copper doped carbon nitride from melamine templated crystalline copper chloride for Fenton-like catalysis
TL;DR: In this paper, copper doped g-C3N4 composites were synthesized by pyrolyzing a melamine templated crystalline copper chloride [H2mela]2[CuCl5]Cl.
Journal ArticleDOI
Sensitive electrochemical sensor for nitrite ions based on rose-like AuNPs/MoS2/graphene composite.
TL;DR: The present work provides not only a general one-pot synthesis method for a variety of noble-transition metal dichalcogenides nanohybrids, but also an example of the fabrication of an electrochemical nitrite sensor using a Nanohybrid as an enhanced material, an approach that can easily be extended to other sensors.
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Journal ArticleDOI
General expression of the linear potential sweep voltammogram in the case of diffusionless electrochemical systems
TL;DR: In this article, the equation of the linear potential sweep voltammogram is derived for any degree of reversibility of the electrochemical reaction for the following methods: surface voltammetry when both the oxidized and the reduced forms are strongly adsorbed, and a Langmuir isotherm is obeyed, thin layer voltamometry, and linear potential sweeping coulometry.
Journal ArticleDOI
Cu and Cu-Based Nanoparticles: Synthesis and Applications in Catalysis.
Manoj B. Gawande,Anandarup Goswami,François-Xavier Felpin,Tewodros Asefa,Xiaoxi Huang,Rafael Silva,Xiaoxin Zou,Radek Zboril,Rajender S. Varma +8 more
TL;DR: A critical appraisal of different synthetic approaches to Cu and Cu-based nanoparticles and copper nanoparticles immobilized into or supported on various support materials (SiO2, magnetic support materials, etc.), along with their applications in catalysis.
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Stabilization of Fe−Pd Nanoparticles with Sodium Carboxymethyl Cellulose for Enhanced Transport and Dechlorination of Trichloroethylene in Soil and Groundwater
TL;DR: In this paper, a new strategy for stabilizing palladized iron (Fe−Pd) nanoparticles with sodium carboxymethyl cellulose (CMC) as a stabilizer was reported.