Modelling and Optimization of Indigo Carmine Adsorption onto P(NIPAM-co-AN)/Clay Composite Using Response Surface Methodology

In the present work, a new polymeric adsorbent; Poly(NIPAM-co-AN)/clay composite was prepared via in-situ polymerization. The copolymerization of N-isopropylacrylamide, acrylonitrile and calculated clay (about 5% w/w) were carried out at 65°C in presence 10 mL 1,4-dioxane using AIBN as an initiator. Characterization P(NIPAM-co-AN)/clay determined by FT-IR techniques. NIPAM-AN/clay has been used novel adsorbent to remove indigo carmine dye from synthetic effluents. Three important process parameters i.e., initial IC concentration (5-30 mg/L), dosage (0.01-0.08 g) contact time (10–180 min) modeled optimized get best response removal Central Composite Design assembled with Response Surface Methodology. amount solution measured UV-visible spectrophotometer wavelength 650 nm. Based on ANOVA statistical value, adsorption onto is highly significant, very low probability value (p