TiO2/Co3O4 nanocomposite was successfully synthesized using leaf extract of Catharanthus roseus (L.) G. Don. (CRE), precursors of TTIP and Co(NO3)2. FT-IR characterization shows that TiO2/Co3O4 has been formed due to the presence of secondary metabolites in CRE which have a major role as a weak base source for nanocomposite synthesis. Particle size analysis was employed by PSA and TEM, which were found to be 38.04 nm and 90.80 nm, respectively. Besides, the UV-Vis DRS result shows that TiO2/Co3O4 has bandgap energy at 2.8 eV. According to the morphological analysis, TiO2/Co3O4 nanocomposite has a spherical shape confirmed by SEM. The structural analysis was confirmed by XRD that TiO2/Co3O4 nanocompositehas a diffraction pattern combination of TiO2 and Co3O4 nanoparticle. The photocatalytic activity of TiO2/Co3O4 nanocomposite was examined for malachite green degradation. The result shows that the degradation percentage was 82.61 % under visible light illumination for 120 min.
|Journal||IOP Conference Series: Materials Science and Engineering|
|Publication status||Published - 2020|
|Event||4th International Symposium on Current Progress in Functional Materials, ISCPFM 2019 - Bali, Indonesia|
Duration: 6 Nov 2019 → 7 Nov 2019