Situmeang, Rudy T.M and Romiyati, Romiyati and Saputra, Ahmadammar and Sembiring, Simon (2020) Ni0.5V0.5Fe2O4 Nanophotocatalyst: Preparation, Characterization and its Activity on Remazol Golden Yellow Degradation under Sunlight Irradiation. Key Engineering Material, 840 (-). pp. 71-78. ISSN 1662-9795
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Abstract
Photocatalysis is a promising solution for the degradation of dyes since this substance gives a negative impact on the environment. In this study, Ni0.5V0.5Fe2O4 nano photocatalyst was prepared simultaneously using sol-gel and freeze-drying methods. After the freeze-drying process, the sample was subjected to calcination treatment and subsequently characterized using the techniques of X-ray Diffraction (XRD) and Scherrer calculation method, FTIR, DR spectroscopy, and TEM analysis. The results of XRD characterization indicated that the material consists of Ni0.5V0.5Fe2O4 spinel as a major crystalline phase. Then, TEM analysis proved that the grain size of this spinel is in the range of 20 nm. Crystallite size calculation using Scherrer equation proved that the size is 34.06 nm, DRS analysis indicated that the bandgap energy of spinel Ni0.5V0.5Fe2O4 is suitably utilized and FTIR spectra analysis implied that the prominent acid sites are Lewis acid. Furthermore, results of dyes photodegradation indicated that Ni0.5V0.5Fe2O4 nanocatalyst is active for remazol golden yellow degradation until 45% conversion under sunlight irradiation for 100 min.
| Item Type: | Article |
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| Subjects: | Q Science > QD Chemistry |
| Divisions: | Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia |
| Depositing User: | Dr. Rudy Tahan Mangapul Situmeang |
| Date Deposited: | 27 Apr 2020 02:38 |
| Last Modified: | 27 Apr 2020 02:38 |
| URI: | http://repository.lppm.unila.ac.id/id/eprint/19324 |
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