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Not AvailableSynthesis of metal oxide nanoparticles (NPs) such as copper oxide and zinc oxide NPs has gained interest over decades owing to their unique physical and chemical properties that make them applicable in different fields of science and technology. The biological method is cost-effective and eco-friendly than chemical method. Many studies have proven that plant extracts act as reducing, capping, stabilising agents for the synthesis of NPs. Zinc oxide (ZnO) and copper oxide (CuO) NPs possess antimicrobial and antioxidant properties, which make them ideal for broader applications in the different fields. This review provides an overview of the bioactivities of ZnO and CuO NPs synthesized using plants.Not Availabl

Synthesis and Characterization of TiO2-Water Nanofluids

Nanofluids made of TiO2 and multiwalled carbon nanotubes are the focus of our study. Using TiO2 and water as the basic fluids, nanofluids were created in 100 : 0, 75 : 25, and 50 : 50 proportions. Carbon nanotubes (CNTs) were disseminated into these base fluids of three types at 0.125, 0.25, and 0.5 percentages. Over the course of two months, the change of zeta potential is monitored to assess the stability of the dispersion. XRD analysis and SEM and TEM analysis are carried out for TiO2 nanofluids. Nanoparticles were analyzed using EDAX analysis to identify their composition. SEM examination was used to investigate the morphology for TiO2 nanoparticles. Particles of TiO2 produced in this manner seemed to have an average diameter of 27 nm. Nanofluids have a poor stability, which is the most important aspect of employing them, although most studies did not focus on this. When it comes to nanofluids, this study is unique in that it provides an in-depth look of surface modification approaches that have been employed by researchers to address these issues, as well as an evaluation of their stability over two months. Solubility is improved by acid treatment of CNTs, which results in functional groups on the surface of CNTs