Preparation and thermal conductivity investigation of reduced graphene oxide-ZnO nanocomposite-based nanofluid synthesised by ultrasound-assisted method

A review of graphene‐TiO2 and graphene‐ZnO nanocomposite photocatalysts for wastewater treatment

“…Sarode et al (2020) similarly investigated GO-CuO prepared by ultrasound method and reported thermal conductivity to be 1.046 W/mK at 33 C for 0.03 vol.% concentration of nanofluid. Similarly, many other investigations report use of graphene-based nanocomposites for enhancement of thermal properties of water which can therefore be used for various heat transfer purposes (Chawhan et al, 2020;Koshta et al, 2020;Mandhare et al, 2020;Singh et al, 2021). Furthermore, graphene has promising applications in biomedical field.…”

“…The phenomenon of this method leads the suppression of generation of intermediate GO phases that can otherwise interrupt the original structure of the product and also yield. In a similar study, Mandhare et al (2020) synthesized reduced graphene oxide-ZnO nanocomposite by ultrasonic assisted method. Here, GO was synthesized by Hummers' method followed by nanocomposite synthesis by ultrasonication-assisted method.…”

“…Various types of nanomaterials can be attached to graphene nanosheets, thereby increasing the functionality of both the materials and achieve synergistic properties (Lawal, 2019). These may include nanoparticles (Barai et al, 2019;Mandhare et al, 2020), nanotubes (Kwon et al, 2017), and nanorods (Dai et al, 2019;Wang et al, 2020). Formation of graphene nanocomposites provides several benefits: (1) prevention of stacking of graphene sheets: carbon atom within the graphene structure possesses π bond oriented out of plane making them vulnerable to stack over one other.…”

Ultrasonication an intensifying tool for preparation of stable nanofluids and study the time influence on distinct properties of graphene nanofluids – A systematic overview

“…Thermal conductivity of developed rGO-Fe 3 O 4 nanoparticles derived nanofluids with help of ultra sound reported an 83% enhancement with 0.2% concentration of the rGO-Fe 3 O 4 at 40 °C [95] . The processing of water-based nanofluid comprising reduced nanocomposite fragments of graphene oxide-zinc oxide (rGO-ZnO) and rGO–TiO 2 are synthesized by the ultrasound-assisted approach and concluded that the thermal conductivity was found to increase with both the concentration and temperature of the nanofluid and useful for high heat transfer rate applications [96] , [97] , [98] .…”

Comparative Numerical Study of Thermal Features Analysis between Oldroyd-B Copper and Molybdenum Disulfide Nanoparticles in Engine-Oil-Based Nanofluids Flow

“…The preferred fluid properties are important for the selected process, to facilitate the optimal combination procedure for a specific nanofluid. Consequently, it is critical to develop a collection of mixture procedures for the nanofluids' choice group, when subjected to objective properties and processes [2][3][4][5][6].…”