Experimental studies on thermal conductivity of metal oxides/water-ethylene glycol (50%-50%) nanofluids with varying temperature and concentration using ultrasonic interferometer

Gupta, Jyoti; Pandey, Brijesh Kumar; Dwivedi, D.K.; Mishra, Saurav; Jaiswal, Ratan Lal; Pandey, Satyabrat

doi:10.1016/j.physb.2023.415376

Physica B: Condensed Matter

2023

DOI: 10.1016/j.physb.2023.415376

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Experimental studies on thermal conductivity of metal oxides/water-ethylene glycol (50%-50%) nanofluids with varying temperature and concentration using ultrasonic interferometer

Jyoti Gupta,

Brijesh Kumar Pandey,

D.K. Dwivedi

et al.

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2024

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Cited by 3 publications

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Greener Synthesis of Copper Oxide Nano‐Particles Using Rivina Humilis L. Plant Extract, Characterization and Their Biological Evaluation for Anti‐Microbial and Anti‐Oxidant Activity

Sheikh,

Mungole,

Pandhurnekar

et al. 2024

ChemistrySelect

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Synthesis of nano‐particles using various greener approaches such as the use of plant extract, microbes, etc. is gaining a lot of popularity in the scientific community due to their advantages of being a cheaper protocol, reduction in the use of less hazardous chemicals, more environmentally benign method and good yield. It has been previously reported by many research groups that plant material provides reducing, capping as well as stabilizing agents and brings down biological and environmental risks in the green synthesis of nano‐particles. So it was thought worthwhile to synthesize copper oxide nano‐particles (CuO NPs) using some locally available medicinal plants. Rivina humilis L. plants which are available in our region of Vidarbha in Maharashtra State, India are considered to be the herbal plant for the treatment of respiratory‐related disorders mainly for asthma and cold by local tribal peoples. It has been found that it contains a variety of phytochemicals which can be employed for the synthesis of nanomaterials. With this aim it was thought worthwhile to present an efficient and greener approach for the synthesis of copper oxide nano‐particles using Rivina humilis L. (RH) whole plant extract. For characterization of bio‐synthesized CuO NPs, various spectral and analytical techniques such as UV‐Vis spectroscopy, FT‐IR, XRD, SEM, TEM, and EDS were employed. The newly synthesized CuO NPs were also tested for their potential biological activities against six different bacterial stains namely E. coli, P. aeruginosa, S. aureus, P. vulgaris, B. subtilis, and S. typhi using the well diffusion method. The antioxidant efficacy of the synthesized CuO NPs was undertaken through 1,1‐Diphenyl‐2‐picrylhydrazyl (DPPH) free radical scavenging activity. Their results have been presented and discussed in the present work.

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Greener Synthesis of Copper Oxide Nano‐Particles Using Rivina Humilis L. Plant Extract, Characterization and Their Biological Evaluation for Anti‐Microbial and Anti‐Oxidant Activity

Sheikh,

Mungole,

Pandhurnekar

et al. 2024

ChemistrySelect

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Investigating the viscosity of hybrid nano-lubricant containing MWCNTs with ANN modeling to introduce the best and most optimal lubricant

Hemmat Esfe,

toghraie,

Amoozad

et al. 2024

J Therm Anal Calorim

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An extensive review of preparation, stabilization, and application of single and hybrid nanofluids

Das,

Santra,

Ganguly

et al. 2024

J Therm Anal Calorim

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The researchers attract nanofluids due to their improved thermal and physical properties compared to the base fluid. The colloidal mixture of nanometre-sized particles with conventional fluid is known as nanofluids. Compared with single nanofluids, hybrid nanofluids show better enhancement in thermophysical properties. Combining nanoparticles into the host fluid is called a hybrid nanofluid. The preparation of nanofluid needs more importance. However, the physiochemical properties of the nanofluid mainly depend on the stability of the nanofluid. The article aims to provide detailed information about preparing different types of single and hybrid nanofluids dispersed in various base fluids, preparation techniques, stabilization processes, applications and challenges. Different types of surfactants and characterization methods are suggested to improve the stability of the prepared solution. It was observed that all types of nanoparticles and hybrid nanoparticles could be synthesized with different base fluids with the help of the sonication process, particle-to-surfactant ratio, magnetic stirrer and many more. The two-step method is mostly preferred by the researchers compared to the single-step method to prepare the nanofluid. Application of single and hybrid nanofluids has been highlighted in different areas; few challenges have also been identified and must be checked before implementation in the industry.

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Experimental studies on thermal conductivity of metal oxides/water-ethylene glycol (50%-50%) nanofluids with varying temperature and concentration using ultrasonic interferometer

Cited by 3 publications

References 35 publications

Greener Synthesis of Copper Oxide Nano‐Particles Using Rivina Humilis L. Plant Extract, Characterization and Their Biological Evaluation for Anti‐Microbial and Anti‐Oxidant Activity

Greener Synthesis of Copper Oxide Nano‐Particles Using Rivina Humilis L. Plant Extract, Characterization and Their Biological Evaluation for Anti‐Microbial and Anti‐Oxidant Activity

Investigating the viscosity of hybrid nano-lubricant containing MWCNTs with ANN modeling to introduce the best and most optimal lubricant

An extensive review of preparation, stabilization, and application of single and hybrid nanofluids

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