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Adsorption and magnetic removal of neutral red dye from aqueous solution using Fe3O4 hollow nanospheres
Open accessAbstract
Fe(3)O(4) hollow nanospheres were prepared via a simple one-pot template-free hydrothermal method and were fully characterized. These magnetic spheres have been investigated for application as an adsorbant for the removal of dye contaminants from water. Because of the high specific surface area, nano-scale particle size, and hollow porous material, Fe(3)O(4) hollow spheres showed favorable adsorption behavior for Neutral red. Factors affecting adsorption, such as, initial dye concentration, pH and contact time were evaluated. Langmuir and the Freundlich adsorption isotherms were selected to explicate the interaction of the dye and magnetic adsorbant. The characteristic parameters for each isotherm have been determined. The overall trend followed an increase of the sorption capacity with increasing dye concentration with a maximum of 90% dye removal. The monolayer adsorption capacity of magnetic hollow spheres (0.05 g) for NR in the concentration range studied, as calculated from the Langmuir isotherm model at 25 degrees C and pH 6, was found to be 105 mg g(-1). Adsorption kinetic followed pseudo-second-order reaction kinetics. Thermodynamic study showed that the adsorption processes are spontaneous and endothermic. The combination of the superior adsorption and the magnetic properties of Fe(3)O(4) nanospheres can be useful as a powerful separation tool to deal with environmental pollution.
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Citations
Cites
The adsorption of gases on plane surfaces of glass, mica and platinum
Langmuir, I. (1918) · Journal of the American Chemical Society · doi:10.1021/ja02242a004 · Cited by 23,242
Adsorption of reactive dye onto carbon nanotubes: Equilibrium, kinetics and thermodynamics
Wu, C.-H. (2007) · Journal of Hazardous Materials · doi:10.1016/j.jhazmat.2006.09.083 · Cited by 582
Cited by
New Generation Adsorbents for Water Treatment
Ali, I. (2012) · Chemical Reviews · doi:10.1021/cr300133d · Cited by 1,758
Synthesis, Properties, and Applications of Hollow Micro-/Nanostructures
Wang, X., Feng, J., Bai, Y., Zhang, Q., & Yin, Y. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00731 · Cited by 1,456
Water Purification by Using Adsorbents: A Review
Singh, N. B., Nagpal, G., Agrawal, S., & Rachna (2018) · Environmental Technology & Innovation · doi:10.1016/j.eti.2018.05.006 · Cited by 962
Wang, L., Shi, C., Wang, L., Pan, L., Zhang, X., & Zou, J.-J. (2020) · Nanoscale · doi:10.1039/c9nr09274a · Cited by 523
Wang, T., Lin, J., Chen, Z., Megharaj, M., & Naidu, R. (2014) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2014.07.006 · Cited by 503
Metadata
- Authors
- Iram, M., Guo, C., Guan, Y., Ishfaq, A., & Liu, H.
- Venue
- Journal of Hazardous Materials
- Publisher
- Elsevier BV
- Published
- 2010-09
- Volume
- 181
- Issue
- 1-3
- Pages
- 1039-1050
- ISSN
- 0304-3894 (ISSN-L)
- OpenAlex
- W2088287711
- Cited by
- 518
- References
- 2
- FWCI
- 20.68
- Type
- journal article
- Language
- en
- Open access
- green
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- Iram, M., Guo, C., Guan, Y., Ishfaq, A., & Liu, H. (2010). Adsorption and magnetic removal of neutral red dye from aqueous solution using Fe3O4 hollow nanospheres. Journal of Hazardous Materials. https://doi.org/10.1016/j.jhazmat.2010.05.119
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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