Removal of congo red azo dye from aqueous solution by ZnO nanoparticles loaded on multiwall carbon nanotubes
| Autor: | Hamidreza Sadegh, Gomaa A. M. Ali, Rahman Shakibaei Lalehloo, Mohamad Reza Talei Bavil Olyai, Seyed Masoud Seyed Arabi |
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| Rok vydání: | 2019 |
| Předmět: |
Aqueous solution
Nanocomposite Materials science 02 engineering and technology Carbon nanotube 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Environmentally friendly Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials law.invention Congo red chemistry.chemical_compound Adsorption chemistry Chemical engineering Zno nanoparticles law Fourier transform infrared spectroscopy 0210 nano-technology |
| Zdroj: | Physica E: Low-dimensional Systems and Nanostructures. 106:150-155 |
| ISSN: | 1386-9477 |
| Popis: | The present work investigates the performance of ZnO nanoparticles loaded on multiwall carbon nanotubes for removing of congo red dye from aqueous solutions . The prepared nanocomposites are characterized by XRD, TEM, FTIR, FESEM and EDX. The effect of various parameters such as contact time, temperature and adsorbent dosage are investigated and discussed. The obtained results show that the optimum adsorption conditions are contact time of 50 min., 55 °C and dosage of 9 mg. These optimum parameters give a high removal ratio of 99.8%.The adsorption data were well fitted by pseudo-second-order model. The obtained results reveal that ZnO/MWCNTs is a promising, environmentally friendly and efficient adsorbent for some wastewater treatment. |
| Databáze: | OpenAIRE |
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