Work

Adsorbent materials based on a geopolymer paste for dye removal from aqueous solutions

Year: 2018

Type: article

Abstract: Geopolymers are porous materials that can be used as basic dye adsorbents in wastewater treatment. In this work, a green geopolymer paste synthesized from industrial and agricultural waste materials was employed as an adsorbent to remove the basic dye methylene blue from aqueous solutions. The geopolymer sample was characterized by X-ray fluorescence, scanning electron microscopy, Brunauer Emmet Teller surface area measurements, and particle size techniques. The isotherms of dye adsorption by the geopolymer sample were considered by the Langmuir and Freundlich adsorption models. The removal efficiency increased with increasing geopolymer dosage, contact time and temperature. The Freundlich isotherm exhibited the best fit to the adsorption data.

Source: Arabian Journal of Chemistry

DOI: 10.1016/j.arabjc.2018.08.011

Authors: Ali Maleki, Masita Mohammad, Zeynab Emdadi, Nilofar Asim, Mojtaba Azizi, Javad Safaei

Institutions: Iran University of Science and Technology, National University of Malaysia

Language: English

Topic: Adsorption and biosorption for pollutant removal

Subfield: Water Science and Technology

Field: Environmental Science

Domain: Physical Sciences

SDGs: Clean water and sanitation, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $1,490