Removing of Anionic Dye from Aqueous Solutions by Adsorption Using of Multiwalled Carbon Nanotubes and Poly (Acrylonitrile-styrene) Impregnated with Activated Carbon

This paper presents an estimation of the adsorptive potential multiwalled carbon nanotubes (MWCNTs) and modified poly (acrylonitrile-co-styrene) with activated for uptake reactive red 35 (RR35) dye from aqueous solution by a batch system. MWCNT adsorbent was synthesized encapsulation via in situ polymerization. The copolymer material (acrylonitrile-styrene) P (AN-co-ST) prepared ratio 2:1 V/V precipitation polymerization process. composites’ properties were characterized FTIR, SEM, Raman, mean particle size (PSA), XRD analysis. PSA copolymeric determined to be 450.5 994 nm MWCNTs P(AN-co-St)/AC, respectively. Moreover, influences different factors, example pH (2–10), adsorbents dosage (0.005–0.04 g), contact time (5–120 min), initial concentration (10–50 mg L?1), temperature (25–55 °C). optimum values 2 4 pH, 10 L?1 RR35 dye, 0.04 g at early time. Furthermore, adsorption isotherm studied using Langmuir, Freundlich, Tempkin, Halsey models. Maximum capacity qmax MWCNTS (AN-co-St)/AC 256.41 30.30 g?1, investigational kinetic study appropriated well pseudo second-order model correlation coefficient around 0.99. Thermodynamic displayed that removal is exothermic, spontaneous physisorption efficiency reduced 54–55% after four cycles reuse 120 min.