Experimental Investigation OfCopper Oxide Nanoparticles Synthesized Via Chemical Route And Study The Catalytic Activity In Reduction Of P-Nitrophenol

Background: The properties of the material are altered when material size shifted towards nano-regime. This feature could be used for wastewater treatment process using model pollutant such as dyes. Recently, nanoparticles are synthesized by a green chemical route using different capping agents. This is the reason we adopt starch as green capping agent along with sol-gel method. Objective: To synthesize cobalt oxide nanoparticles by green chemical route and utilized it in degradation of dyes. Methods: Synthesis of cobalt oxide nanoparticles by sol-gel method using starch as a capping agent. The characteristics of surface modifications were investigated by UV-VIS, TEM, SEM, XRD and FTIR techniques. Results: Cobalt oxide nanoparticles synthesized and inhibited photocatalytic activity. Conclusion: Deactivation of photocatalytic activity due to complex nature of starch. This property can be used elsewhere as in light shielding applications to coat and protect surfaces in order to keep them cool and safe from damage as in the painting of vehicles, roofs, buildings, water tanks, etc.

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Eco-friendly synthesis and characterization of cobalt oxide nanoparticles by sativum species and its photo-catalytic activity

Materials Today Proceedings ◽

10.1016/j.matpr.2021.02.338 ◽

2021 ◽

Author(s):

G. Asha ◽

V. Rajeshwari ◽

G. Stephen ◽

S. Gurusamy ◽

D. Carolin Jeniba Rachel

Keyword(s):

Catalytic Activity ◽

Cobalt Oxide ◽

Synthesis And Characterization ◽

Oxide Nanoparticles ◽

Cobalt Oxide Nanoparticles ◽

Photo Catalytic Activity

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The remarkable catalytic activity of ultra-small free-CeO2 nanoparticles in selective carbon–carbon bond formation reactions in water at room temperature

New Journal of Chemistry ◽

10.1039/c5nj00500k ◽

2015 ◽

Vol 39 (7) ◽

pp. 5350-5353 ◽

Cited By ~ 15

Author(s):

Subhash Banerjee

Keyword(s):

Catalytic Activity ◽

Room Temperature ◽

Bond Formation ◽

Ceo2 Nanoparticles ◽

Cerium Oxide Nanoparticles ◽

Oxide Nanoparticles ◽

Reusable Catalyst ◽

Carbon Carbon Bond ◽

Active Methylene Compounds ◽

Active Methylene

A simple and efficient protocol for selective bis-Michael addition and mono-allylation of active methylene compounds has been demonstrated using ultra-small size (∼5 nm) uncapped cerium oxide nanoparticles (free-CeO2 NPs) as a reusable catalyst in water at room temperature.

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A cyano-bridged copper(ii)–copper(i) mixed-valence coordination polymer as a source of copper oxide nanoparticles with catalytic activity in C–N, C–O and C–S cross-coupling reactions

New Journal of Chemistry ◽

10.1039/c4nj00829d ◽

2014 ◽

Vol 38 (9) ◽

pp. 4267-4274 ◽

Cited By ~ 7

Author(s):

Manoj Trivedi ◽

Sanjeev kumar Ujjain ◽

Raj Kishore Sharma ◽

Gurmeet Singh ◽

Abhinav Kumar ◽

...

Keyword(s):

Catalytic Activity ◽

Coordination Polymer ◽

Copper Oxide ◽

Mixed Valence ◽

Cross Coupling ◽

Copper Oxide Nanoparticles ◽

Cuo Nanoparticles ◽

Oxide Nanoparticles ◽

Coupling Reactions ◽

Cross Coupling Reactions

A cyano-bridged Cu(ii)–Cu(i) complex was synthesized and transformed into CuO nanoparticles. Their catalytic activity in C–N, C–O, and C–S cross-coupling reactions was explored.

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Green synthesis of copper oxide nanoparticles using Prickly Pear peel fruit extract: characterization and catalytic activity

Inorganic Chemistry Communications ◽

10.1016/j.inoche.2021.109027 ◽

2021 ◽

pp. 109027

Author(s):

Abdessalem Badri ◽

Sami Slimi ◽

Mouhieddine Guergueb ◽

Hamza Kahri ◽

Xavier Mateos

Keyword(s):

Catalytic Activity ◽

Copper Oxide ◽

Green Synthesis ◽

Copper Oxide Nanoparticles ◽

Prickly Pear ◽

Oxide Nanoparticles ◽

Fruit Extract

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Evaluation of the catalytic activity of graphene oxide and zinc oxide nanoparticles on the electrochemical sensing of T1R2-Rebaudioside A complex supported by in silico methods

Pure and Applied Chemistry ◽

10.1515/pac-2020-1104 ◽

2021 ◽

Vol 0 (0) ◽

Author(s):

Krishna Bisetty ◽

Suvardhan Kanchi ◽

Phathisanani Hloma

Keyword(s):

Zinc Oxide ◽

Graphene Oxide ◽

Catalytic Activity ◽

Zinc Oxide Nanoparticles ◽

Taste Receptor ◽

Computational Modelling ◽

Electrochemical Sensing ◽

Oxide Nanoparticles ◽

Rebaudioside A ◽

Pt Electrode

Abstract Herein, we report on the performance of graphene oxide (GOx) and zinc oxide nanoparticles (ZnONPs) on a platinum (Pt) electrode, immobilized with the human T1R2 sweet taste receptor subunit for the detection of rebaudioside A (Reb-A). The characterization studies performed in this work confirmed the thin-layered structure of GOx and the polydispersed nature of ZnONPs. The elucidation of the mass loss observed by TGA demonstrates the stability of GOx. The cyclic voltammetry results for Pt/GOx revealed good catalytic activity over Pt/ZnONPs for adsorption of the T1R2-Reb-A complex. In addition, a series of computational modelling studies were carried out to better understand the surface adsorption phenomena of GOx and ZnONPs to mimic the layer-by-layer electrode modification strategies independently. The strongest interaction energy observed (−573 kcal mol−1) for the direct interaction of ZnONPs onto the Pt electrode surface, demonstrates a stronger adsorption in contrast to the GOx modified Pt electrode (−23 kcal mol−1). However, the overall results for the layered-nanocomposite revealed that the GOx (−256 kcal mol−1) were more strongly adsorbed in contrast to ZnONPs (−231 kcal mol−1) for the detection of the T1R2-ReB-A complex, demonstrating the reliability of our GOx electrode functionalization strategy. The results of this study can potentially be used to improve the design of rapid Reb-A sensors for the food and beverage industry.

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