Abstract
The addition of ionic liquids with MXene nanofluid has a substantial impact on the solar thermal collectors’ working fluid’s optical properties that effectively absorb and distribute solar radiation. Increased solar radiation absorption potential ensures that heats are transported more rapidly and effectively. This research endeavors to investigate the concept of accumulating solar energy via the usage of ionic liquid-based 2D MXene nanofluid (Ionanofluids) for solar applications. In this study, the optical potential of Diethylene Glycol/MXene nanofluid incorporated with 1-ethyl-3-methyl imidazolium octyl sulfate ([Emim][OSO4]) ionic liquid was extensively investigated with respect to MXene concentration (0.1 to 0.4 wt%) and time (first day and seventh day) through UV-Vis Spectroscopy. A two-step approach was employed to synthesize the proposed ionanofluids with nanoparticle concentrations from 0.1 to 0.4 wt%. In wavelengths between 240 to 790 nm, the effect of ionic liquids, MXene concentration, and dispersion stability played a significant part in enhancing the absorbance capacity of the formulated MXene based Ionanofluid. Furthermore, the increase in the concentration of MXene nanoparticles resulted in more absorbance peaks facilitating high light absorption. Finally, the electrical conductivity of the ionanofluids is also analyzed as MXene renders them promising for solar cell applications. The utmost electrical conductivity of the formulated fluids of 571 μS/cm (micro siemens per centimeter) was achieved at 0.4 wt% concentration.
Highlights
The usage of solar power is one of the key alternatives to the issue of global warming, rising energy demands, and declining energy sources
Valizade et al [7] distinguished the optical property of SiC/water and CuO/water nanofluid porous metal foam in a direct absorption solar collector (DASC)
2D MXenes are imperative in applications such as energy storage, energy conversion, lubrication, and batteries due to their significant surface area, making them draw much interest in solar applications. This motivated the present study to analyze the optical property of imidazolium-based ionic liquids dispersed with MXene nanofluid
Summary
The usage of solar power is one of the key alternatives to the issue of global warming, rising energy demands, and declining energy sources. Valizade et al [7] distinguished the optical property of SiC/water and CuO/water nanofluid porous metal foam in a DASC They pointed out that the thermal efficiency of absorption solar collectors depends mainly on the optical properties of absorbers. Zhang et al [9] investigated the optical properties of ionic liquid-based nanofluids ([HMIM][NTf2 ]/Ni) in DASC They demonstrated that ionic liquid-based solutions containing nickel-coated carbon nanoparticles obtained a maximum extinction coefficient with less transmittance, making them a promising HTF for solar thermal collectors. Owing to the fascinating properties of two-dimensional (2D) materials, which are peculiar from three-dimensional (3D) analogs, research on 2D materials increases researchers’ attention This motivated the present study to analyze the optical property of imidazolium-based ionic liquids dispersed with MXene nanofluid. This study could be a benchmark for developing heat transfer fluids based on 2D materials and ionic liquids
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