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Environmental Science and Pollution Research

, Volume 19, Issue 3, pp 724–738 | Cite as

Optimizing removal of ibuprofen from water by magnetic nanocomposite using Box–Behnken design

  • Kunwar P. SinghEmail author
  • Arun K. Singh
  • Uday Veer Singh
  • Priyanka Verma
Research Article

Abstract

Purpose

The present research aims to optimize the removal of ibuprofen (IBP), a non-steroidal anti-inflammatory, analgesic, and antipyretic drug from the aqueous solution using a synthesized magnetic carbon–iron nanocomposite, and to investigate the individual and combined effects of the independent process variables.

Method

Combining the adsorptive capability of carbon and magnetic property of iron, a carbon–iron nanocomposite was synthesized. A four-factor Box–Behnken experimental design-based optimization modeling was performed for maximizing the removal of IBP from water by the nanocomposite using the batch experimental data. A quadratic model was built to predict the responses. Significance of the process variables and their interactions was tested by the analysis of variance and t test statistics.

Results

The experimental maximum removals of IBP from the aqueous solution by carbon and magnetic nanocomposite were 14.74% and 60.39%, respectively. The model predicted maximum removal of 65.81% under the optimum conditions of the independent variables (IBP concentration 80 mg/l; temperature 48°C; pH 2.50; dose 0.6 g/l) was very close to the experimental value (65.12 ± 0.92%). pH of the solution exhibited most significant effect on IBP adsorption.

Conclusion

The developed magnetic nanocomposite was found superior than its precursor carbon exhibiting higher removal of IBP from the water and can be easily separated from the aqueous phase under temporary external magnetic field. The developed magnetic nanocomposite may be used for an efficient removal of IBP from the water.

Keywords

Magnetic nanocomposite Ibuprofen Adsorption Experimental design Optimization Response surface modeling 

Notes

Acknowledgments

The authors thank the Director, Indian Institute of Toxicology Research, Lucknow (India) for his keen interest in this work.

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Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  • Kunwar P. Singh
    • 1
    Email author
  • Arun K. Singh
    • 1
  • Uday Veer Singh
    • 1
  • Priyanka Verma
    • 1
  1. 1.Environmental Chemistry DivisionCSIR-Indian Institute of Toxicology Research (Council of Scientific & Industrial Research)LucknowIndia

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