Nickel-Chitosan Hybrid as a Precursor for Nickel Oxide Nanoporous Particles for Organic Dyes Photodegredation
Hydrothermal synthesis of nickel-chitosan hybrid has been accomplished using Ni(CH3COO)2,4H2O, chitosan and water as starting material, template and solvent respectively, followed by calcination at 800 and 900˚C to provide nanoporous NiO800 and NiO900. The solid products were characterized by X-r...
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| Main Author: | |
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| Format: | Article |
| Language: | English |
| Published: |
University of Tehran
2014-06-01
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| Series: | Journal of Sciences, Islamic Republic of Iran |
| Subjects: | |
| Online Access: | https://jsciences.ut.ac.ir/article_51394_5b70815382e2a3d528d5a2ddc0976049.pdf |
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| Summary: | Hydrothermal synthesis of nickel-chitosan hybrid has been accomplished using Ni(CH3COO)2,4H2O, chitosan and water as starting material, template and solvent respectively, followed by calcination at 800 and 900˚C to provide nanoporous NiO800 and NiO900. The solid products were characterized by X-ray diffraction (XRD), nitrogen adsorption-desorption, scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) techniques. NiO800 proved to be active for adsorption of Congo red with pseudo-second order kinetic model and adsorption isotherms, respectively fitted by Freundlich equation. NiO900 was also found to successfully catalyze the photodegradation of organic dye pollutants such as Congo red and methylene blue. The kinetic of photocatalytic behavior of NiO900 have proven to obey the first order and Langmuir–Hinshelwood model. |
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| ISSN: | 1016-1104 2345-6914 |