Combined Experimental Thin Films, TDDFT-DFT Theoretical Method, and Spin Effect on [PEG-H2O/ZrO2+MgO]h Hybrid Nanofluid Flow with Higher Chemical Rate

Abstract The higher-order rate of reactions of spinning [PEG-H2O/ZrO2]m mono, and [PEG-H2O/ZrO2+MgO]h hybrid nanofluid on an expanding surface is taken into account in the present investigation. The non-linear flow terms are numerically resolved with Runge–Kutta–Fehlberg of 4-5th order (RKF45) technique. In comparison, the mono and hybrid nanofluids are addressed as enhanced heat transport. It is found that with 1% [MgO]NPs, the thermal conductivity increases by 69.6%. [PEG-H2O/ZrO2+MgO]h enhances the heat transmit rate than [PEG-H2O/ZrO2]m. The nanostructure thin films of [PEG-H2O/ZrO2]m and [PEG-H2O/ZrO2+MgO]h are fabricated by utilizing a spin coating process with a thickness of 200 ± 5 nm/25 °C. The nanofluid thin films are studied using combined experimental and theoretical method (DFT density function theory), including FT-IR (Fourier-transform infrared) spectrum. The results specifically determine that Δ E g O p t (difference energy bandgap) values decrease from 2.294 eV for [PEG-H2O/ZrO2]m to 0.677 eV for [PEG-H2O/ZrO2+MgO]h using the DFT computations. This result concluded that the [PEG-H2O/ZrO2]m transformed from semiconductor to [PEG-H2O/ZrO2+MgO]h as a superconductor hybrid nanofluid by addition (MgO nanoparticles).