In this study, nano ferrite materials were produced to replace costive industrial materials [1]. Ferrite nanoparticles are the interesting material due to their rich and unique physical and chemical properties. They find applications in catalysis, bio-processing, medicine, magnetic recording, adsorption, devices etc. Using co-participation method, five nano ferrite samples Zn 0.5 Mg 0.5−x Li 2x Fe 2 O 4 (x = 0.00, 0.10, 0.20, 0.30 and 0.40) were prepared. The electrical and optical properties of the Zn 0.5 Mg 0.5−x Li 2x Fe 2 O 4 samples were studied using the Ultraviolet-visible (UV-Vis) spectroscopy. The results verified that the formation of the absorption coefficient of the five samples of Zn 0.5 Mg 0.5−x Li 2x Fe 2 O 4 increased with the increase of Lithium (Li 2x). The energy band gap of the Zn 0.5 Mg 0.5−x Li 2x Fe 2 O 4 samples ranged from 3.28 to 3.12 eV [1]. The extinction coefficient (K) for five samples of Zn 0.5 Li 2x Mg 0.5−x Fe 2 O 4 increased with the increase of Lithium (Li 2x) at 338 nm from 0.074 to 0.207. The high magnitude of optical conductivity is (1.34 × 10 12 sec −1) and the maximum value of electrical conductivity is 42 (Ω•cm) −1. This may due to the electrical and optical properties of lithium.

Nanoferrite materials had been synthesized to produce new alternate substance for reducing the rare or high cost of industrial materials. In this work, the Zn 0.5 Mg 0.5-x Li 2x Fe 2 O 4 nanoferrite (x = 0.00, 0.10, 0.20, 0.30 and 0.40) was prepared by co-precipitation approach. Structural and optical properties were investigated for the Zn 0.5 Mg 0.5-x Li 2x Fe 2 O 4 series by X-ray diffraction (XRD), Fourier transforms infrared (FTIR) and ultraviolet-visible (UV-Vis) spectroscopies. The XRD data showed that all samples of Zn 0.5 Mg 0.5-x Li 2x Fe 2 O 4 series possess a cubic spinel with a space group (Fd-3m) structure and crystallite size decreased from 116 to 96 nm with a doping ratio. Lattice parameter founded to increases with Li 1+ ratio that result in the larger ionic radius of the Li 1+ cation. FTIR result verified the formation of spinel structure by appearance of the absorption bands around 420, 580 cm −1. The energy band gap computed for Zn 0.5 Mg 0.5-x Li 2x Fe 2 O 4 samples and it founded in the range of 3.28-3.12eV.

Co-precipitation is an important issue in chemical analysis, where it is often undesirable, but in some cases, it can be exploited. The Zn 0.5 Mn 0.5−x Li 2x Fe 2 O 4 nanomaterials (x = 0.0, 0.1, 0.2, 0.3 and 0.4) was afforded by utilizing co-precipitation method. The structural and optical characteristics were analyzed for the samples employing X-ray diffraction (XRD), Fourier transforms infrared spectroscopy (FTIR) and Ultraviolet-visible spectrophotometer (UV-Vis). XRD revealed that the structure of certain nanoparticles is a cubic spinel with space group (Fd-3m) and crystallite size in the scale 124-150 nm. Lattice parameter was determined to increments with Li +1 and that may occur due to the larger ionic radius of the Li 1+ ion. FTIR spectroscopy confirmed the form of spinel ferrite and explicated the properties of absorption bands approximately 593, 1111, 1385, 1640, 2922 and 3430. The energy band gap was estimated for all samples with diverse ratios and was observed in the range of 2.58-2.52 eV.