Adsorption of Thymol Blue and Erythrosine-B on MWCNTs functionalized by N-(3-nitrobenzylidene)-N'-trimethoxysilylpropyl-ethane-1,2-diamine equilibrium, kinetics and thermodynamic study

Abstract

We have accomplished a synthesized of an adsorption material through anchoring N-(3nitro-benzeyliden)-N-trimethoxysilylpropylethan-1,2-diamin onto multi-wall-carbon nanotube. The systems were established via SEM and FT-IR techniques. Then, it was used for removing the ultra-sound-assisted for Thymol Blue (TB) and Erythrosine-B (EB).The pH dependency and initial dyes concentration, sonication time and adsorbent’s dosage for the removing percentage of Thymol Blue and Erythrosine-B which have investigated by CCD or Central-Composite Designing. It was exhibited that the Thymol Blue and Erythrosine-B adsorption follows, while the Langmuir models explain the equilibriums variables.