The study was conducted on the impact of thermophysical properties on eflornithine drug solute–solvent interactions in aqueous ethyl acetate and acetone at different concentrations and temperatures. The aim of this study is to enhance the understanding of eflornithine’s behavior in different solvents, which is crucial for its effective use in pharmaceutical applications. The density, molar volume, viscometric, and conductometric characteristics of the eflornithine drug solutions (0.025, 0.05, 0.075, 0.1, and 0.125 mol/kg) in acetone and 25% (v/v) aqueous ethyl acetate were measured within a temperature range of 298.15 K–318.15 K. Based on the determined density parameters, the following parameters were assessed: viscosity (η), equivalent molar conductance, limiting apparent molar volume (V0φ), apparent molar volume of transfer (V0φtr), and apparent molar volume (Vφ). The Masson empirical relationship and the viscosity-to-Jones-Dole (JD) equation were used to evaluate the partial molar volume (Vφ), experimental slope (SV), viscosity, and density data. Temperature and concentration were used to determine each parameter. For each set of dilutions, conductometric studies were conducted in both study solvents. The gathered data was analyzed in order to evaluate the ion–solvent interactions. The Walden product Λomηo’s positive temperature coefficient values indicate that the drug eflornithine functions as a structural modifier in acetone and aqueous acetyl acetate systems. The structure-making and breaking characteristics of the polar solvents acetone and ethyl acetate were identified.

In this study, a range of photocatalysts, including zinc and cerium oxides, were developed using the precipitation technique, while impregnation was used to produce multiwalled CNTs with zinc oxide, multiwalled CNTs with zinc oxide/cerium oxides, and zeolite-based multiwalled CNTs with zinc oxide/cerium oxides. Advanced instruments, such as XRD, UV-Vis, and photoluminescence (PL) devices, were used to analyze the crystal structure, bandgap, and optical properties of each photocatalyst. Methylene blue, an organic contaminant, and sewage from Ethiopia’s Bahir Dar cloth industry were used to assess the photocatalytic efficacy of both assisted and unassisted nanocomposites. Under visible light irradiation, the TZ (zeolite with MWCNTs/ZnO/CeO2) demonstrated a higher degradation performance of MB dye than the T3 nanocomposite, attaining 93.71% and 83.21%, respectively. This implies that by increasing the adsorption capacity, zeolite greatly improves the composite’s performance. The stability of the TZ in photocatalytic degradation was assessed, showing a 20.8% reduction after four consecutive runs, confirming the nanocomposite’s good stability. Furthermore, the mentioned photocatalyst (TZ) demonstrated greater performance in the degradation of MB with approximately 94.12% compared to the sewage sample efficiency of 76.75%.

Dye-sensitized solar cells (DSSCs) are an excellent alternative solar cell technology that is cost-effective and environmentally friendly. The geometry, reactivity descriptors, light-harvesting efficiency, molecular radii, diffusion coefficient, and excited oxidation state potential of the proposed complex were investigated. The calculations in this study were performed using DFT/TDDFT method with B3LYP functional employed on the Gaussian 09 software package. The calculations were used the 6–311 + + G(d, p) basis set for the C, H, N, O, Cl atoms and the LANL2DZ basis set for the Re atom, with the B3LYP functional.. The balance of hole and electron in this complex has increased the efficiency and lifetime of DSSCs for photovoltaic cell applications. The investigated compound shows that the addition of the TPA substituent marginally changes the geometric structures of the 2, 2′-bipyridine ligand in the T₁ state. As EDsubstituents were added to the compound, the energy gap widened and moved from E_LUMO (− 2.904 eV) (substituted TPA) to E_LUMO (− 3.122 eV) (unsubstituted). In the studying of solvent affects; when the polarity of the solvent decreases, red shifts appears in the lowest energy an absorption and emission band. Good light-harvesting efficiency, molecular radii, diffusion coefficient, excited state oxidation potential, emission quantum yield, and DSSC reorganization energy, the complex is well suited for use as an emitter in dye-sensitized solar cells. Among the investigated complexes mentioned in literature, the proposed complex was a suitable candidate for phosphorescent DSSC.

This study evaluated the impact of different fertilizer treatments on the proximate composition and antioxidant properties of flour from two white-fleshed