4.5 Article

Production of hydroxyapatite-based adsorbent for the removal of cobalt ions from the aqueous solution

Journal

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
Volume 19, Issue 3, Pages 1397-1404

Publisher

WILEY
DOI: 10.1111/ijac.13958

Keywords

aqueous solution; cobalt ion; hydroxyapatite; isotherm study; magnetic nanocomposite

Funding

  1. Iranian Nanotechnology Initiative Council

Ask authors/readers for more resources

The study aimed to recover and separate cobalt ions from multielement solution using hydroxyapatite (HAp) and HAp/Fe3O4 magnetic nanocomposite as adsorbents. The adsorption efficiency of cobalt ions was higher with the magnetic nanocomposite of HAp. Various isotherm models confirmed the feasibility of the adsorption process.
The aim of the current study was to recover and separate cobalt ions from multielement solution, using hydroxyapatite (HAp) and magnetic nanocomposite of HAp/Fe3O4 as adsorbents. Cobalt ion adsorption process was conducted batchwise within the temperature 25 55 degrees C, exposure duration 5-120 min by applying a dose of 0.25-5 g/L as the adsorbent at pH 2 to 9. Adsorbent characterization was performed using advanced spectroscopic techniques such as Fourier Transform Infrared Spectroscopy, Scanning electron microscopy, and Energy-dispersive X-ray spectroscopy. The maximum ionic adsorption efficiency using HAp was 90.48% against 94.72% in the case of the magnetic nanocomposite of HAp, under optimal conditions. Various isotherm models were used to evaluate the adsorption capacity and equilibrium coefficients for adsorption of the cobalt ions by the prepared adsorbents. The isotherm models data showed that the adsorption process is desirable by the adsorbents and by adding nanoparticles of Fe3O4 the adsorption capacity improves.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.5
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available