Statistical analysis of expanded graphite-decorated cobalt ferrite as adsorbent for removal of Congo Red dye using response surface methodology

In this study, exfoliated graphene-decorated cobalt ferrite was fabricated and used as an adsorbent toward Congo Red dye. The relationship between the adsorption parameters and the dye removal from the aqueous solution was explored using response surface methodology. We found that the removal effici...

Full description

Saved in:
Bibliographic Details
Published in:Materials today : proceedings 2021-01, Vol.38, p.2737-2744
Main Authors: Van Tan, Lam, Thi Hong Tham, Nguyen, Thuan Tran, Van, Thi To Uyen, Dao, Van Thinh, Pham
Format: Article
Language:English
Subjects:
Cobalt ferrite
Congo Red dye
Exfoliated graphene
Response surface methodology
Statistical analysis
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:In this study, exfoliated graphene-decorated cobalt ferrite was fabricated and used as an adsorbent toward Congo Red dye. The relationship between the adsorption parameters and the dye removal from the aqueous solution was explored using response surface methodology. We found that the removal efficiency using the decorated adsorbent far surpassed that obtained using non-decorated ferrite materials. In addition, to achieve maximal removal efficiency against Congo Red dye (87.46%) using the as-synthesized adsorbent, experimental parameters should consist of initial dye concentration of 58.20 mg.L−1, contact time of 189 min and pH of 6.05. ANOVA analysis results indicate that the model is statistically significant because the high R2 and low P-value. Validation experiments further confirm those results.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2020.08.568