Biosynthesis and characterization of zinc ferrite (ZnFe<sub>2</sub>O<sub>4</sub>) via Antidesma bunius L. fruit extract
Verry Andre Fabiani, Fajar Indah Puspita Sari, Nuraini Nuraini, Suci Ananda Putri
Abstract
Abstract Biosynthesis of ZnFe 2 O 4 via Antidesma bunius L fruit extract has been carried out. In this synthesis, Zn(NO 3)2 .6H 2 O and Fe(NO 3)3 .9H 2 O were used which act as precursors of Zn 2 + and Fe 3 + ions with a coefficient ratio of 1:2 using the coprecipitation method with variations in calcination temperatures of 500 °C, 600 °C and 700 °C. The precursor used is NaOH. XRD data showed that there are diffraction peaks of ZnFe 2 O 4 in all samples but at a calcination temperature of 700,°C the diffraction peaks of ZnFe 2 O 4 with high intensity are more visible at 2Θ = 31.78°, 34.42°, 35.2°, 36.22°, 56.61° this peak corresponds to the peak ZnFe 2 O 4 diffraction (JCPDS 22-1012) in addition there is also a peak of ZnO at 2Θ = 31.7°, 34.4°, 36.2°, 47.5°, 62.8°, 66.5° and 69.2° (JCPDS 36-1451). FTIR analysis showed that the Zn-O stretching group was at wave numbers 837 cm -1 , 870 cm -1 , 1058 cm -1 , 1065 cm -1 , and 1350 cm -1 . The Zn-O-Zn strain is found at wave numbers 1350 cm -1 , 1633 cm -1 , and 1634 cm -1 , respectively. The appearance of these bonding groups proves that the synthesis of ZnFe 2 O 4 has been formed.