PEMANFAATAN SENYAWA Ca 1-x Co x TiO SEBAGAI FOTOKATALIS PADA REAKSI DEGRADASI POLUTAN ORGANIK 3

AK, Prodjosantoso and CAHYORINI, KUSUMAWARDANI and M. Pranjoto, Utomo (2016) PEMANFAATAN SENYAWA Ca 1-x Co x TiO SEBAGAI FOTOKATALIS PADA REAKSI DEGRADASI POLUTAN ORGANIK 3. Artikel Penelitian Hibah Bersaing.

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Abstract

A series of Ca x Co 1-x TiO 3 has been prepared through the ceramic method as polycrystalline powders with x = 0, 0.01, 0.025, 0.05, and 0.1. The structure of resulting materials was refined from a powder X-ray diffraction using the Rietvield method showing the perovskitetype structure isostructural with CaTiO 3 . The morphology and particle size of Ca x were studied using SEM/EDX that showed a particle size of around 3.5 nm with nonhomogenous particle sphere shapes. The materials’ electronic structure was studied by using UV/Vis spectroscopy method, which showed that the prepared Ca x Co 1-x having good response in the visible region with the band gap energy (E g ) of around 2.2 eV, which is highly potent as visible light photocatalysts. The adsorption capacity and adsorption equilibrium constant of the oxides to the methylene blue were also studied. The adsorption process in Ca x Co 1-x TiO 3 materials follows the Langmuir adsorption type as a consequence of homogenous pore structures. The catalytic activity of Ca x Co 1-x TiO 3 on the methylene blue degradation are also discussed. TiO 3 Co 1-x TiO 3

Item Type: Article
Additional Information: Laporan Penelitian Hibah Bersaing 2016
Uncontrolled Keywords: Ca x Co 1-x TiO3, perovskite structure, visible-light photocatalyst
Subjects: LPPM - Lembaga Penelitian dan Pengabdian kepada Masyarakat
Divisions: LPPM - Lembaga Penelitian dan Pengabdian kepada Masyarakat
Depositing User: LPPM UNY
Date Deposited: 16 Feb 2017 02:26
Last Modified: 16 Feb 2017 02:26
URI: http://eprints.uny.ac.id/id/eprint/47085

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