This work aimed to study the optical absorption and photo-thermal conversion efficiency by the addition of the surfactant (Triton X-100) to Ag/Fe3O4 Nanocomposites (NCs), prepared by using laser ablation technique. The nanoparticles were characterized by several techniques confirming the successfully prepared formation of the elemental composition and the average particle size. The Energy dispersive X-ray spectroscopy techniques (EDX) were helped in evaluating the compositional elemental ratio. The nano crystalline structure and morphology was investigated using X-ray diffraction (XRD) and the transmission electron microscope (TEM). The values of the optical absorption, thermal conductivity and photo-thermal conversion have been reported. A consistent linkage between energy gap (Eg), electronegativity (∆χ) and the refractive index (n), depending only on the absorbance spectrum of the samples, which was effectively enhanced with the introduction of Ag Nanoparticles (NPs) to Fe3O4 Nanocomposites. Several relations have been proposed for calculating the refractive index as function of (Eg) and (∆χ) values. Moreover, the electronic polarizability (αe), the molar volume (Vm), molar refractive index (Rm), molar electronic polarizability (αme) was calculated. The photo-thermal conversion results due to the addition of Ag NPs and the (Triton X-100), to Fe3O4 NPs, has been enhanced. The results imply a novel concept, of the effect of Nobel metal “Ag” on the magnetic nanoparticles, optical energy gap, optical conductivity, thermal diffusivity and thermal conductivity. Consequently, we can have an efficient way that can be used as a photo-thermal agent for water desalination. |
