Polypyrrole-coated magnetic nanoparticles as an efficient adsorbent for RB19 synthetic textile dye: Removal and kinetic study
| Autor: | Yousefali Ghorbani, Shahram Seidi, Seyed Mohammad Reza Shoja, Shohre Rouhani, Maryam Shanehsaz |
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| Rok vydání: | 2015 |
| Předmět: |
Time Factors
Polymers Static Electricity Nanoparticle Anthraquinones Polypyrrole Analytical Chemistry chemistry.chemical_compound symbols.namesake Adsorption X-Ray Diffraction Spectroscopy Fourier Transform Infrared Pyrroles Coloring Agents Magnetite Nanoparticles Instrumentation Spectroscopy Chromatography Elution Textiles Temperature Langmuir adsorption model Sorption Hydrogen-Ion Concentration Atomic and Molecular Physics and Optics Kinetics chemistry Chemical engineering symbols Magnetic nanoparticles Methanol |
| Zdroj: | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy. 149:481-486 |
| ISSN: | 1386-1425 |
| Popis: | The present work deals with the first attempt to study the removal of synthetic textile dye, reactive blue 19 (RB19), using the magnetic Fe3O4 nanoparticles modified by pyrrole (PPy@Fe3O4 MNPs) as an efficient adsorbent. The nanoadsorbent was synthesized using chemical co-precipitation. Scanning electron microscopy and FT-IR were used to characterize nanoparticles. Factors affecting the dye adsorption including the pH of the dye solution, amount of adsorbent and contact time were also further investigated. Sorption of the RB19 on PPy@Fe3O4 MNPs reached to equilibrium at contact time less than 10 min and fitted well to the Langmuir adsorption model with a maximum adsorption capacity of 112.36 mg g−1. Experiments for adsorption kinetic were carried out and the data fitted well according to a pseudo-second-order kinetic model. Moreover, the MNPs were recovered with over than 90% efficiency using methanol as elution agent. |
| Databáze: | OpenAIRE |
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