Format

Send to

Choose Destination
See comment in PubMed Commons below
Bioresour Technol. 2013 Sep;144:485-91. doi: 10.1016/j.biortech.2013.06.108. Epub 2013 Jul 4.

Effective removal of Congo red dye from aqueous solution using modified xanthan gum/silica hybrid nanocomposite as adsorbent.

Author information

1
Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian School of Mines, Dhanbad, India.

Abstract

The aim of this work is to study the feasibility of XG-g-PAM/SiO2 nanocomposite towards its potential application as high performance adsorbent for removal of Congo red (CR) dye from aqueous solution. The surface area, average pore size and total pore volume of the developed nanocomposite has been determined. The efficiency of CR dye adsorption depends on various factors like pH, temperature of the solution, equilibrium time of adsorption, agitation speed, initial concentration of dye and adsorbent dosage. It has been observed that the nanocomposite is having excellent CR dye adsorption capacity (Q0=209.205 mg g(-1)), which is considerably high. The dye adsorption process is controlled by pseudo-second order and intraparticle diffusion kinetic models. The adsorption equilibrium data correlates well with Langmuir isotherm. Desorption study indicates the efficient regeneration ability of the dye loaded nanocomposite.

KEYWORDS:

Adsorption; Congo red dye; Isotherm; Kinetics; Nanocomposite

PMID:
23896441
DOI:
10.1016/j.biortech.2013.06.108
[Indexed for MEDLINE]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center