Surfactant-modified montmorillonite as a nanosized adsorbent for removal of an insecticide: Kinetic and isotherm studies

Aydin Hassani, Alireza Khataee*, Semra Karaca, Mehdi Shirzad-Siboni

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

43 Citations (Scopus)

Abstract

Surfactant-modified montmorillonites (MMT) were prepared using trimethyloctylammonium bromide (TMOAB) and employed as a nanosized adsorbent to remove diazinon from aqueous solutions. The prepared adsorbent was characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy-dispersive X-ray (EDX). The dependence of removal efficiency on initial diazinon concentration, amount of adsorbent, pH of the solution and ionic strength was investigated. The affinity sequence for ion adsorption on TMOAB/MMT was in the order: without anion> sodium carbonate> sodium bicarbonate> sodium sulphate> sodium chloride. The adsorption kinetic and isotherm were best fit by a pseudo-second-order kinetic and Langmuir isotherm models, respectively.

Original languageEnglish
Pages (from-to)3125-3135
Number of pages11
JournalEnvironmental Technology (United Kingdom)
Volume36
Issue number24
DOIs
Publication statusPublished - 17 Dec 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Taylor & Francis.

Keywords

  • adsorption
  • diazinon
  • modified clay
  • montmorillonite
  • nanoclay

Fingerprint

Dive into the research topics of 'Surfactant-modified montmorillonite as a nanosized adsorbent for removal of an insecticide: Kinetic and isotherm studies'. Together they form a unique fingerprint.

Cite this