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Reactive Dye Adsorption From Aqueous Solution on Hpei-Modified Fe3o4 Nanoparticle As a Superadsorbent: Characterization, Modeling, and Optimization Publisher



Dalvand A1, 2 ; Khoobi M3, 4 ; Nabizadeh R2 ; Ganjali MR5, 6 ; Gholibegloo E7 ; Mahvi AH8, 9, 10
Authors
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Authors Affiliations
  1. 1. Environmental Science and Technology Research Center, Department of Environmental Health Engineering, School of Public Health, Shahid Sadoughi University of Medical Sciences, Yazd, Iran
  2. 2. Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Medical Biomaterials Research Center, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Medicinal Chemistry, Faculty of Pharmacy and Pharmaceutical Sciences Research Center, Tehran University of Medical Sciences, Tehran, 14176, Iran
  5. 5. Center of Excellence in Electrochemistry, Faculty of Chemistry, University of Tehran, Tehran, Iran
  6. 6. Biosensor Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
  7. 7. Depatment of Organic Chemistry, University of Zanjan, Zanjan, Iran
  8. 8. Center for Water Quality Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
  9. 9. Center for Solid Waste Research, Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran
  10. 10. National Institute of Health Research, Tehran University of Medical Sciences, Tehran, Iran

Source: Journal of Polymers and the Environment Published:2018


Abstract

In this work, the optimum condition for the adsorption of Reactive Blue 19 dye onto Fe3O4 functionalized with hyperbranched polyethylenimine (Fe@HPEI) was determined using response surface methodology. The properties of synthesized magnetic Fe@HPEI nanoparticles were ascertained using FTIR, SEM, TEM, VSM and zeta potential measurement. The experimental adsorption data indicating the positive effect of adsorbent dose and contact time, and the negative effect of pH, initial dye concentration and ionic strength on dye adsorption. At optimal condition; pH 3.4, contact time 25 min, adsorbent dose 0.4 g/L and initial dye concentration 113 mg/L, Fe@HPEI nanoparticles removed dye up to 99.27%. The maximum experimental dye adsorption was near to the predicted value of 100%, which confirmed the reliability of the selected statistical model. The dye adsorption data were fitted well to Langmuir isotherm and pseudo-second-order kinetic, and the maximum adsorption capacity was 500 mg/g. Totally, Fe@HPEI as an effective superadsorbent can be repeatedly utilized for the adsorption of dye from the aqueous environment. © 2018, Springer Science+Business Media, LLC, part of Springer Nature.