Work

Adsorption of a textile dye from aqueous solution on natural and modified sawdust

Year: 2020

Type: article

Abstract: ABSTRACT Natural and modified sawdust were used in adsorption of textile dye (acid green 4G) from aqueous solution. Several physicochemical analyses such as Fourier-transform infrared spectroscopy, X-ray diffraction, scanning electron microscopy, Brunauer–Emmett–Teller and pH zpc were performed to characterize the adsorbents. The effects of contact time, adsorbate concentration, and temperature were investigated. The equilibrium time was found to be achieved after 120 min of contact and kinetic data were best described by the pseudo-second-order rate equation. The acid green 4G is better adsorbed by modified sawdust. The adsorption isotherms were described by Langmuir and Freundlich equation and the equilibrium was better fitted by the Freundlich model. The study of thermodynamic parameters reveals that the adsorption of acid green 4G by both adsorbents was endothermic. All the obtained results show that the modified sawdust is more practical to use in purification of water which is contaminated by textile dye than natural sawdust.

Source: Desalination and Water Treatment

DOI: 10.5004/dwt.2020.25861

Authors: Imane Lansari, Blekacem Benguella, Natalia Kruchinina, Alexey Nistratov

Institutions: University of Abou Bekr Belkaïd, D. Mendeleyev University of Chemical Technology of Russia

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Responsible consumption and production, Clean water and sanitation

Open Access status: hybrid

Estimated APC paid: $1,000