Adsorption of Pb(II) ion from aqueous solution onto Chitosan/silica/polyethylene glycol (Ch/Si/P) composites membrane

11th Joint Conference on Chemistry in Conjunction with the 4th Regional Biomaterials Scientific Meeting

材料科学;化学;生物科学

Mahatmanti, F.W.^1 ; Rengga, W.D.P.^2 ; Kusumastuti, E.^1 ; Nuryono^3

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Negeri Semarang, 50229, Indonesia^1

Department of Chemical Engineering, Faculty of Engineering, Universitas Negeri Semarang, 50229, Indonesia^2

Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Gadjah Mada, Sekip Utara, Yogyakarta

55281, Indonesia^3

关键词: Adsorption capacities;    Adsorption kinetics;    Adsorption of pb;    Batch adsorption experiments;    Fourier transform infra red (FTIR) spectroscopy;    Pseudo second order;    Selective adsorbents;    Selective factors;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/172/1/012019/pdf
DOI  :  10.1088/1757-899X/172/1/012019

来源: IOP

【 摘 要 】

In this research, chitosan/silica/polyethylene glycol (Ch/Si/P) composites membrane was studied for selective adsorbent of Pb(II) from aqueous solution. This study started by preparation of Ch/Si/P composites membrane. The structure and surface morphology of Ch/Si/P composites membrane was characterized by X-ray diffraction (XRD), Fourier Transform Infra Red (FTIR) spectroscopy, and Scanning Electron Microscopy (SEM). Batch adsorption experiments were conducted with various contact time and Pb(II) concentrations to evaluate the adsorption kinetics and thermodynamics. Results show that adsorption fitted to Langmuir model and followed a kinetic model of pseudo-second-order. The adsorption capacity of Pb(II) onto the Ch/Si/P composites membrane is 0.16 mmol/g. The relative selective factor (αf) value of Pb(II)/Rhodamine B is 2.38. This means that Pb(II) can be determined even in the presence of Rhodamine B interference.