Sorption characteristics of peat of Brunei Darussalam V: removal of Congo red dye from aqueous solution by peat

Peat collected from Panaga, Brunei Darussalam, shows strong affinity towards the adsorption of Congo red (CR) dye from aqueous solution. The adsorption capacity of Bruneian peat under optimized conditions of shaking time, settling time, and medium pH is determined to be 10.1 mg g−1 at equilibrium. A...

Full description

Saved in:
Bibliographic Details
Published in:Desalination and water treatment 2015-05, Vol.54 (9), p.2592-2600
Main Authors: Zehra, Tasneem, Priyantha, Namal, Lim, Linda B.L., Iqbal, Erum
Format: Article
Language:English
Subjects:
Adsorption
Aqueous solutions
Brunei
Congo red
Dyes
Kinetics
Peat
Settling
Sorption
Surface chemistry
X-ray fluorescence
XRF
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Peat collected from Panaga, Brunei Darussalam, shows strong affinity towards the adsorption of Congo red (CR) dye from aqueous solution. The adsorption capacity of Bruneian peat under optimized conditions of shaking time, settling time, and medium pH is determined to be 10.1 mg g−1 at equilibrium. Adsorption of CR on Bruneian peat follows monolayer adsorption with small contribution to multilayer formation qualifying the validity of the Redlich–Peterson model, which is further supported by error function determination. In addition, changes in peat structure and surface were studied using scanning electron microscopic and X-ray fluorescence techniques. Kinetics studies were in agreement with the pseudo-second-order model and the adsorption reaction proceeds according to intra-particle diffusion.
ISSN:1944-3986
1944-3994
1944-3986
DOI:10.1080/19443994.2014.899929