Abstract

Mehdi Vadi and Azim Lorestani

The purpose of this research was to study the adsorption behavior of diethyl and dimethyl malonate esters on the single-walled carbon nanotubes (SWCNTs), by Uv-Vis lambda 45 spectrophotometer. In this work we used five concentrations of esters (100-150-200-250-300 µgml-1). In all experiments the condition such as adsorbate, contact time, temperature (295 ⁰ K) and pH of sample were constant. The experimental results obtained at the temperature 295⁰K with equilibrated adsorption were studied and were represented by the Langmuir, Freundlich and Temkin isotherm models. The experimental data showed that Freundlich isotherm has the best compatibility.

Adsorption; Diethyl malonate ester; Dimethyl malonate ester; Carbon nanotubes

[ View HTML Full Text]