Journal
POLIMEROS-CIENCIA E TECNOLOGIA
Volume 27, Issue 1, Pages 16-26Publisher
ASSOC BRASIL POLIMEROS
DOI: 10.1590/0104-1428.2386
Keywords
adsorption; remazol; rice hull
Categories
Funding
- FAPEMA
- CNPq
- CAPES
Ask authors/readers for more resources
The release of industrial effluents into the environment causes widespread contamination of aquatic systems. Adsorption is seen as one of the most promising treatment processes, and lignocellulosic materials have gained prominence as adsorbents. This study investigates the potential of rice hulls, either in natura or treated with nitric acid, as adsorbents for removal of the dye. The adsorbents were characterized by infrared spectroscopy, solid state C-13-NMR, thermogravimetric analysis, and pH at point of zero charge. The dye adsorption experiments were carried out in batch mode, using different experimental conditions. The kinetic adsorption data could be fitted using the model of Elovich. The Freundlich model provided the best fit to the isothermal data. The thermodynamic parameters confirmed the spontaneity of the adsorption process. These adsorbents offer an alternative for dye removal, with advantages including biomass availability and low cost.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available