Fabrication of CuO nanoparticle: An efficient catalyst utilized for sensing and degradation of phenol

Nayak, Rasmita; Ali, Farida; Mishra, Dilip Kumar; Ray, Debes; Aswal, Vinod K.; Sahoo, Susanta Kumar; Nanda, Binita

doi:10.1016/j.jmrt.2020.07.100

Cited by 68 publications

(15 citation statements)

References 38 publications

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“…This paste was then dried completely and calcined at 400 °C for 2 h before collecting and packing separately for further characterization. Calcination removes the impurities present in the sample, and you get a purified form of the NP, and the process is temperature-dependent [ 56 ]. The sample had undergone various evaluation and measurements like UV visible spectrometer, SEM, XRD, EDX, and FT-IR to finally confirm it as ZnO nanoparticles.…”

Section: Methodsmentioning

confidence: 99%

Green synthesis and characterization of zinc oxide nanoparticles using Cayratia pedata leaf extract

Jayachandran

Aswathy

Nair

2021

Biochemistry and Biophysics Reports

224

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The synthesis of Zinc oxide nanoparticles using a plant-mediated approach is presented in this paper. The nanoparticles were successfully synthesized using the Nitrate derivative of Zinc and plant extract of the indigenous medicinal plant Cayratia pedata. 0.1 mM of Zn (NO 3 ) 2 .6H 2 O was made to react with the plant extract at different concentrations, and the reaction temperature was maintained at 55 °C, 65 °C, and 75 °C. The yellow coloured paste obtained was wholly dried, collected, and packed for further analysis. In the UV visible spectrometer (UV–Vis) absorption peak was observed at 320 nm, which is specific for Zinc oxide nanoparticles. The characterization carried out using Field Emission Scanning Electron Microscope (FESEM) reveals the presence of Zinc oxide nanoparticles in its agglomerated form. From the X-ray diffraction (XRD) pattern, the average size of the nanoparticles was estimated to be 52.24 nm. Energy Dispersive Spectrum (EDX) results show the composition of Zinc and Oxygen, giving strong energy signals of 78.32% and 12.78% for Zinc and Oxygen, respectively. Fourier Transform - Infra-Red (FT-IR) spectroscopic analysis shows absorption peak of Zn–O bonding between 400 and 600 cm −1 . The various characterization methods carried out confirm the formation of nano Zinc oxide. The synthesized nanoparticles were used in the immobilization of the enzyme Glucose oxidase. Relative activity of 60% was obtained when Glucose oxidase was immobilized with the green synthesized ZnO nanoparticles. A comparative study of the green synthesized with native ZnO was also carried out. This green method of synthesis was found to be cost-effective and eco-friendly.

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Section: Methodsmentioning

confidence: 99%

Green synthesis and characterization of zinc oxide nanoparticles using Cayratia pedata leaf extract

Jayachandran

Aswathy

Nair

2021

Biochemistry and Biophysics Reports

224

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“…However, the use of nanocomposite photocatalysts, such as AgBr/BiOBr/graphene, BiOCl-TiO2, ZnO/Nd-doped BiOBr, and Ag-ZnO, for phenol photodegradation under visible light for 180 min, has reported a degradation of 90% -97% with an initial concentration of 5 mg/L [56][57][58][59]. In addition, phenol degradation has also been carried out using Cu nanoparticles with degradation of 98% [60] and using bioactive carbon (BAC) with 80.5% degradation percent (with an initial concentration of phenol 500 mg/L) [61].…”

Section: Resultsmentioning

confidence: 99%

The Renewable of Low Toxicity Gelcasting Porous Ceramic as Fe2O3 Catalyst Support on Phenol Photodegradation

Putri¹,

Pratiwi²,

Tjahjanto³

et al. 2022

IJDNE

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Low toxicity gelcasting water-based method was conducted using a non-acrylamide system, with cassava starch and natural clay as poregenic agent and raw material, respectively, and the resulting porous ceramic was used as Fe2O3 catalyst support. The concentrations of cassava starch used were 1%, 3%, 5%, 7%, and 9%, the sintering process was performed based on the results of TGA/DTA thermal analysis. In addition, the sol-gel coating method was used to impregnate the Fe2O3 catalyst into the porous ceramic. BET results show that the pores formed in the ceramic body are micro pores with a size range of 21.41-23.27 Å, hence the concentration of cassava starch does not affect the pore characteristics. The morphology of SEM results also indicated the presence of pore formation in the ceramic body. According to the quantitative XRD analysis, the cassava concentration affects the percentage of catalyst impregnated. The highest percentage of Fe2O3 catalyst on 7% cassava starch was 41.15% and the phase of the catalyst successfully impregnated was α-Fe2O3with a rhombohedral structure. In addition, the highest percentage of phenol degradation was 59.15% with good performance after 8 times of recycling. In this study, we provide for the first time, utilization of Fe2O3-porous ceramics with a wonderful performance of recycling ability in the process of phenol photodegradation.

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“…Transition metal oxides (e.g., TiO 2 , ZnO, CeO 2 , CuO, Fe 2 O 3 ) are inexpensive and abundant. They have excellent redox properties and can be used as catalysts for many reactions, though their catalytic activity is usually lower than that of noble metal catalysts [15,128]. For example, phosphated TiO 2 catalysts were prepared by a continuous sol-gel method in a microreactor (under single-phase flow), which is an eco-friendly catalyst for the selective synthesis of 5-hydroxymethylfurfural (a biobased platform chemical) [12].…”

Section: Metal Oxide Catalystmentioning

confidence: 99%

Advances in Microfluidic Synthesis of Solid Catalysts

Chen

Dong

Yue

2022

Powders

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Heterogeneous catalysis plays a central role in the chemical and energy fields, owing to the high and tunable activities of solid catalysts that are essential to achieve the favorable reaction process efficiency, and their ease of recycle and reuse. Numerous research efforts have been focused on the synthesis of solid catalysts towards obtaining the desired structure, property and catalytic performance. The emergence and development of microfluidic reactor technology provide a new and attractive platform for the controllable synthesis of solid catalysts, primarily because of its superior mixing performance and high heat/mass transfer efficiency. In this review, the recent research progress on the synthesis of solid catalysts based on microfluidic reactor technology is summarized. The first section deals with the synthesis strategies for solid catalysts, including conventional methods in batch reactors and microfluidic alternatives (based on single- and two-phase flow processing). Then, different kinds of solid catalysts synthesized in microflow are discussed, especially with regard to the catalyst type, synthetic process, structure and property, and catalytic performance. Finally, challenges in the microreactor operation and scale-up, as well as future perspectives in terms of the synthesis of more types of catalysts, catalyst performance improvement, and the combination of catalyst synthesis process and catalytic reaction in microreactors, are provided.

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Fabrication of CuO nanoparticle: An efficient catalyst utilized for sensing and degradation of phenol

Cited by 68 publications

References 38 publications

Green synthesis and characterization of zinc oxide nanoparticles using Cayratia pedata leaf extract

Green synthesis and characterization of zinc oxide nanoparticles using Cayratia pedata leaf extract

The Renewable of Low Toxicity Gelcasting Porous Ceramic as Fe2O3 Catalyst Support on Phenol Photodegradation

Advances in Microfluidic Synthesis of Solid Catalysts

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