Adsorption Behaviour of Hazardous Dye (Methyl Orange) on Cellulose-Acetate Polyurethane Sheets. Issue 1 (May 2020)

• Record Type: Journal Article
• Authors: Iqhrammullah, M; Marlina, ; Nur, S
• Is Part Of: IOP conference series. Volume 845:Issue 1(2020)
• Publication Date: 2020-05
• Subjects: Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/845/1/012035
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract: Cellulose Acetate-Polyurethane (CA-PU) copolymer has been successfully prepared by a simple blending method and examined for its adsorption capacity against Methyl Orange (MO). Functional group characterization using Fourier Transform-Infrared (FTIR) confirms the urethane linkage formation as well as the presence of several essential functional groups (such as; O-H, C=O, and aromatic ring). Surface morphology changes are also observed using Scanning Electron Microscopy (SEM), where a smoother and porous structure is obtained in CA-PU. The adsorption isotherm is examined with Langmuir, Freundlich, Halsey, and Harkin-Jura models. MO adsorption on CA-PU sheets fits Freundlich isotherm (R 2 = 0.9722) with KF = 279.45 mg/g. Kinetics studies of the adsorption with pseudo first-order and pseudo second-order plots exhibit that chemisorption is the adsorption limiting-rate.