Pengaruh Temperatur Kalsinasi pada Sintesis Copper Tin Oxide (CuSnO3) Menggunakan Metode Sol-Gel

Abstract

Synthesis of Copper Tin Oxide (CuSnO₃) was carried out using the sol-gel method with varying calcination temperatures (400; 500; 600) ^oC. The aim of this research is to find out how the calcination temperature affects the synthesis results of the CuSnO₃ semiconductor. Then characterization was carried out using the UV-Drs instrument to obtain band gap values and SEM to determine the morphological structure. The CuSnO₃ solution was made by dissolving SnCl₂.2H₂O and CuCl₂.2H₂O with a molar ratio of 1:1 in 50 mL of methanol solvent and homogenizing then adding 1 mL of the additive Diethylamine (DEA). The gel can be calcined at various temperatures to produce CuSnO₃ powder. The research results explain that increasing temperature during calcination can reduce the band gap value of the synthesized CuSnO₃ semiconductor material. The surface morphology of CuSnO₃ powder at 1000x magnification shows clearly that the surface has cavities (hollows) with a chunk diameter of 7-11 nm.