Study of Temperature Effect on the Structure and Optical Properties of RIT- 62 Cu-MOFs

Abstract

Metal organic frameworks are the materials of today’s generation and are widely used for their various physicochemical properties. MOFs are synthesized by various methods such chemical precipitation method, solgel method, hydrothermal method etc. To attain the required optoelectronic properties of MOFs, synthetic methods play a important role. In the present work, the synthesis of Cu-MOFs was carried out at 80 °C and 120 °C. The synthesized Cu-MOFs were labeled as RIT 62-Cu-MOF-1 and RIT 62-Cu-MOF-2. Both the Cu-MOFs were characterized by FTIR, UV-visible spectra. The FESEM of both Cu-MOFs indicated that spherical particles with 120 to 200 nms. of particle size. Tauc’s method was employed to compute the band gap of both Cu-MOFs. RIT 62-Cu-MOF-1 imparted 2.67 eV while RIT 62-Cu-MOF-2 imparted average of 2.06 eV off bandgap. 2.35 eV due to ligand-metal charge transfer observed through UV-visible spectra. Further, optimization of synthetic procedures to enhance the optical properties of Cu-MOFs.