Enhancement Adsorption of Crystal Violet From Wastewater Using Chemically Modified Sugarcane Bagasse by Bentonite and Polyurethane

Document Type : Review Articles


1 Central Laboratory for Environmental Quality Monitoring, National Water Research Center, El-Kanater, Egypt.

2 Menoufia University ,Faculty of Science, Chemistry Department, Shebien ElKoom, Menoufia , Egypt.


The suitability of the sorbent material derived from bagasse (chemically modified with bentonite and polyurethane for adsorption of crystal violet from an aqueous solution was evaluated in a series of batch adsorption experiments). A batch adsorption study was investigated to study the effect of pH, initial dye concentration, adsorption doses, and contact time at different temperatures. The best fit for the adsorption kinetics data is a pseudo-second-order model, while the best description for the adsorption equilibrium data is the Langmuir isotherm. Thermodynamic studies of the adsorption process were performed, and the variables, entropy (ΔSo), enthalpy (ΔHo), free energy (ΔGo), were determined. The endothermic character of the adsorption process was demonstrated by a rising trend in adsorption with increasing temperature.


Main Subjects

Volume 65, Issue 131 - Serial Number 13
Special Issue: Chemistry and Global Challenges (Part A)
December 2022
Pages 489-499
  • Receive Date: 07 March 2022
  • Revise Date: 09 May 2022
  • Accept Date: 11 May 2022