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

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

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.

Original languageEnglish
JournalArabian Journal of Chemistry
DOIs
Publication statusAccepted/In press - 1 Jan 2018

Fingerprint

Geopolymers
Ointments
Adsorbents
Coloring Agents
Dyes
Adsorption
Isotherms
Agricultural wastes
Methylene Blue
Industrial wastes
Wastewater treatment
Porous materials
Fluorescence
Particle size
X rays
Scanning electron microscopy

Keywords

  • Adsorbent
  • Adsorption
  • Aqueous solution
  • Dye removal
  • Geopolymer material

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Adsorbent materials based on a geopolymer paste for dye removal from aqueous solutions. / Maleki, Ali; Emdadi, Zeynab; Azizi, Mojtaba; Mohammad, Masita; Asim, Nilofar; Safaei, Javad.

In: Arabian Journal of Chemistry, 01.01.2018.

Research output: Contribution to journalArticle

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