| Journal: | Journal of applied research and technology |
| Database: | PERIÓDICA |
| System number: | 000427897 |
| ISSN: | 1665-6423 |
| Authors: | Talebi, Sajad1 Chaibakhsh, Naz1 Moradi Shoeili, Zeinab1 |
| Institutions: | 1Gilan University, Faculty of Sciences, Rasht, Gilan. Irán |
| Year: | 2017 |
| Season: | Ago |
| Volumen: | 15 |
| Number: | 4 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The synthesis of ZnS/TiO2 nanocomposite was successfully performed by a chemical deposition method. The structure and morphology of the prepared catalyst were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), and FT-IR spectroscopy. The activity of the photocatalyst was evaluated for the removal of Acid Blue 113 (AB113) dye in aqueous solution under UV-A radiation. Response surface methodology (RSM) based on the central composite rotatable design (CCRD) was applied to study and optimize the photodegradation process. The effects of three experimental parameters including pH, irradiation time, and the catalyst dose on the AB113 removal were studied. A high dye removal (99.0%) was obtained by using minimum amount of the catalyst (37 mg) at the optimal conditions of 27.32 min and pH 6.18. Compared with pure nano-sized TiO2 and ZnS, the synthesized nanocomposite exhibited a higher photocatalytic activity. The kinetics of AB113 adsorption on the surface of ZnS/TiO2 nanocomposite could be described by the pseudo second order and parabolic-diffusion models |
| Disciplines: | Ingeniería |
| Keyword: | Ingeniería química, Decoloración fotocatalítica, Azul ácido 113, Nanocompuestos, Sulfuro de zinc, Oxido de titanio |
| Keyword: | Chemical engineering, Photocatalytic discoloration, Acid Blue 113, Nanocomposites, Zinc sulfide, Titanium oxide |
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