Skip to main content
Log in

Sorption studies of yttrium(III) ions on surfaces of nano-thorium(IV) oxide and nano-zirconium( IV) oxide

  • Original Paper
  • Published:
International Journal of Environmental Science and Technology Aims and scope Submit manuscript

Abstract

Sorption of yttrium on nano-thorium oxide and zirconium oxide was carried out as a function of pH, contact time, concentration, temperature and co-ions. The effect of initial yttrium ion concentration has been investigated in the range of 0.5–50 ppm for 1.0 mg of sorbent dosages. Maximum sorption of 10.5 mg/g in case of nano-thorium oxide and 18.0 mg/g in case of nano-zirconium oxide was noticed from the solution of initial metal ion concentration 0.5 ppm, temperature of 298 K, pH 6.9, shaking time of 120 min (nano-thorium oxide) and contact time of 50 min (nano-zirconium oxide) for the yttrium ion sorption. Sorption followed both Dubinin–Radushkevich and Langmuir isotherms. The free energy of sorption was found to be 8.77 kJ/mol (yttrium(III) vs nano-thorium dioxide) and 18.4 kJ/mol (yttrium(III) vs nano-zirconium oxide) using Dubinin–Radushkevich isotherm. Sorption increased with increase in temperature in the studied temperature range. Sorption was endothermic. And the values of ∆H°, ∆S° and ∆G° were also evaluated. Pseudo-second-order equation fitted for the sorption kinetics. Reichenberg equation was used to explain the diffusion process. The effects of co-ions on sorptions were also investigated. BET surface areas of sorbent particles were 33 m2/g for nano-zirconium oxide and 25 m2/g for nano-thorium oxide. X-ray diffraction and high-resolution transmission electron microscopy data revealed that the size of the sorbent particles was 4.7 and 15.5 nm for nano-thorium dioxide and nano-zirconium dioxide, respectively.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7

Similar content being viewed by others

References

Download references

Acknowledgement

The authors would like to thank the Head of Department of Chemistry, GITAM University, Andhra Pradesh, India, for providing necessary laboratory facilities and UGC MRP Grant (MRP-MAJOR-CHEM-2013-15298) (F. No.: 43-185/2014-(SR)) dated: 13.02.2016 for funding to carry out the present work. The authors are grateful to Banaras Hindu University for XRD characterization, STIC, Cochin University for HR-TEM, SAIF, IIT Bombay for ICP-AES and IIT Kanpur for BET surface area analyser.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to S. S. Dubey.

Additional information

Editorial responsibility: Agnieszka Galuszka.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Dubey, S.S., Grandhi, S. Sorption studies of yttrium(III) ions on surfaces of nano-thorium(IV) oxide and nano-zirconium( IV) oxide. Int. J. Environ. Sci. Technol. 16, 59–70 (2019). https://doi.org/10.1007/s13762-017-1589-3

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13762-017-1589-3

Keywords

Navigation