Adsorption in Jar-Test system: a study of the physico-chemical interactions of the chitosan biopolymer with the textile dye DO 2GL

Fabrication of 1-octane sulphonic acid modified nanoporous graphene with tuned hydrophilicity for decontamination of industrial wastewater from organic and inorganic contaminants

“…The BPA solution of 0.22 mmol L −1 (50 mg L −1 ) was adsorbed using GOBC of different amounts. 38 After completion of adsorption process the final concentration of BPA was analyzed using UV-Visible spectrophotometer. The concentration of BPA adsorbed per gram of GOBC was calculated using eqn (1).where W is mass of adsorbent (g), V is the volume of the solution (L), C 0 and C e are the initial (before adsorption) and final (after adsorption) concentrations of BPA, respectively (mg L −1 ).…”

“…The BPA solution of 0.22 mmol L −1 (50 mg L −1 ) was adsorbed using GOBC of different amounts. 38 After completion of adsorption process the final concentration of BPA was analyzed using UV-Visible spectrophotometer. The concentration of BPA adsorbed per gram of GOBC was calculated using eqn (1) .…”

“…Here, it is noteworthy that all the adsorption experiments were performed without adjusting pH (at neutral pH) that makes GOBC cost effective as pH adjustment of treatment tank is not required before and after treatment. Carolina Rosai Mendes et al 38 also reported Jar-test adsorption for the removal of industrial dye DO 2GL using chitosan-based biopolymer. The Jar-test adsorption studies showed the adsorption capacity of biopolymer as 24.615 mg g −1 at pH 6.5.…”