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- Title
Synthesis of Fe<sub>3</sub>O<sub>4</sub> Nanoparticles and Its Performance on the Removal of Hexavalent Chromium from Aqueous Solutions.
- Authors
Samarghandi, Mohammad reza; Ahmadzadeh, Adel; Yamini, Yadollah; Asgari, Ghorban
- Abstract
Background and purpose: According to the theory of sustainable development, protecting the environment is essential for current and future generations. Chromium (VI) is one of the pollutants of water that endangers the aqueous environment and is a risk for the health of human, animals and plants. The purpose of this study was synthesis of Fe3O4 nanoparticles and evaluation of Cr (VI) adsorption on nanoparticles synthesized as an adsorbent. Materials and methods: In this experimental- laboratory study, nanoparticles were synthesized using chemical co-precipitation method and were studied as adsorbent for adsorption of Cr (VI). The resulted nanomaterials were characterized by SEM, XRD and FT-I. Effects of pH, contact time, adsorbent doses and initial Cr (VI) concentrations were also studied. The data was described by the Langmuir and Freundlich isotherm models and then analyzed in Excel software. Results: We found the features of nanoparticles as expected and the best of removal performance was observed in pH= 2, at 10 min contact time, adsorbent dose of 1g/L and initial Cr (VI) concentration of 50 mg/L. The pattern of Cr (VI) adsorption matched with the Freundlich model and adsorption processes followed the pseudo second-order kinetics. Conclusion: Chemical co-precipitation synthesis method based on low power consumption and short time is an appropriate method and Fe3O4 nanoparticles synthesized by this method could be used as a suitable option for the adsorption of Cr (VI).
- Publication
Journal of Mazandaran University of Medical Sciences (JMUMS), 2013, p174
- ISSN
1735-9260
- Publication type
Academic Journal