Adsorptive removal of cationic dye from aqueous solutions by ZnO/ZnMn2O4 nanocomposite

The ZnO/ZnMn2O4 nanocomposite (ZnMn) was used as adsorbent for the removal of cationic dye Basic Yellow 28 (BY28) from aqueous solutions. The adsorbent was characterized by X-ray diffraction, scanning electron microscope, TEM, Fourier transform infrared ray, BET, particle size distribution and zeta...

Full description

Saved in:
Bibliographic Details
Published in:Separation science and technology 2018-01, Vol.53 (9), p.1295
Main Authors: Konicki, Wojciech, Sibera, Daniel, Narkiewicz, Urszula
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Adsorptivity
Aqueous solutions
Capacity
Cationic dyes
Cations
Data processing
Dye dispersion
Dyes
Fourier transforms
Mathematical models
Nanocomposites
Parameters
Particle size distribution
Removal
Scanning electron microscopy
Size distribution
Solutions
X-ray diffraction
Zeta potential
Zinc oxide
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The ZnO/ZnMn2O4 nanocomposite (ZnMn) was used as adsorbent for the removal of cationic dye Basic Yellow 28 (BY28) from aqueous solutions. The adsorbent was characterized by X-ray diffraction, scanning electron microscope, TEM, Fourier transform infrared ray, BET, particle size distribution and zeta potential measurements. The adsorption parameters, such as temperature, pH and initial dye concentration, were studied. Kinetic adsorption data were analyzed using the pseudo-first-order, pseudo-second-order and intraparticle diffusion kinetic models. The Langmuir and Freundlich isotherm models were applied to fit the equilibrium data. The maximum adsorption capacity of BY28 was 48.8 mg g-1. Various thermodynamic parameters, such as [Delta]G°, [Delta]H° and [Delta]S°, were calculated.
ISSN:0149-6395
1520-5754
DOI:10.1080/01496395.2018.1444054