Next Article in Journal
Influence of Silicodactyly in the Preparation of Hybrid Materials
Previous Article in Journal
Liposomal Curcumin is Better than Curcumin to Alleviate Complications in Experimental Diabetic Mellitus
Open AccessArticle

The Removal of Brilliant Green Dye from Aqueous Solution Using Nano Hydroxyapatite/Chitosan Composite as a Sorbent

Department of Chemistry, Collage of Science, King Khalid University, Abha 61413, Saudi Arabia
*
Author to whom correspondence should be addressed.
Molecules 2019, 24(5), 847; https://doi.org/10.3390/molecules24050847
Received: 7 December 2018 / Revised: 21 February 2019 / Accepted: 25 February 2019 / Published: 28 February 2019
(This article belongs to the Section Nanochemistry)
Nanocomposites of natural bone that show some benefits in terms of both composition and microstructure were synthesized by an in situ precipitation method. Hydroxyapatite (Hap) was prepared from cost-effective precursors within chitosan (CS) dissolved in aqueous acetic acid solution. The nanocomposite was synthesized for the removal of brilliant green dye (BG) from a contaminated water solution. The compositional and morphological properties of the nanocomposite were studied by means of FTIR spectroscopy, X-ray diffraction (XRD), SEM, and TEM analysis. Batch experiments were carried out to investigate the effects of pH, contact time, and initial concentration, as well as the adsorbent dosage and zero point charge for the sorbent to determine a suitable medium for the adsorption process. The sorption models using Mories-Weber, Lagrange, and Bangham equations were used to identify the mechanism and reaction order. The isotherm model was carried out using Langmuir, Freundlich, and Dubinin-Radusekevisch-Kanager equations to calculate the adsorption capacity and type of adsorption. Thermodynamic parameters, enthalpy change (∆Ho), entropy change (∆So), and Gibbs free energy (∆Go) were evaluated. All of the results suggest the feasibility of using nanocomposites as a sorbent for brilliant green dye removal. View Full-Text
Keywords: nanoparticles; nanocomposites; chitosan; hydroxyapatite; kinetic and isotherm models; brilliant green dye nanoparticles; nanocomposites; chitosan; hydroxyapatite; kinetic and isotherm models; brilliant green dye
Show Figures

Figure 1

MDPI and ACS Style

Ragab, A.; Ahmed, I.; Bader, D. The Removal of Brilliant Green Dye from Aqueous Solution Using Nano Hydroxyapatite/Chitosan Composite as a Sorbent. Molecules 2019, 24, 847.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop