Syntheses of Chitosan Macropore and Aplication as Procion Red Dyes Adsorben

• Published in: Journal of physics. Conference series Vol. 1028; no. 1; pp. 12034 - 12038
• Main Authors: Masykur, Abu, Wibowo, Atmanto Heru, Martini, Tri, Laras, Khofifah Cyntia
• Format: Journal Article
• Language: English
• Published: Bristol IOP Publishing 01.06.2018
• Subjects: Acetic acid; Adsorption; Chitosan; Crosslinking; Dyes; Fourier transforms; Functional groups; Infrared spectroscopy; Photomicrographs; Physics; Procion; Scanning electron microscopy; Surface chemistry
• ISSN: 1742-6588; 1742-6596
• DOI: 10.1088/1742-6596/1028/1/012034

The purpose of this research is to conduct syntheses of chitosan macropore using ephichlorohydrin (ECH) as crosslingker and KCl as porogen. The synthesis process was done through three stages: first, chitosan dissolved in acetic acid and added KCl as porogen; second, crosslinking chitosan using epichlorhydrin and third, washing of chitosan crosslinked by aquadest to release KCl to produce pore. Chitosan and modified chitosan was characterized solubility on acid medium, fungtional groups using fourier transform infra red (FTIR), and photo micrograph using scanning electron microscoppy (SEM). Chitosan dissolved on acetic acid 5% medium, but chitosan-ECH and chitosan macropore insoluble. The FTIR spectrum of chitosan and chitosan modified there are no significant differences because they have same of functional groups. SEM micrograph of chitosan and chitosan-ECH showed smooth surface, but addition KCl as porogen on modified chitosan produced pore in the surface of adsorben. Adsorption experiments were conducted to study the removal of procion red dyes and optimum adsorption conditions were obtained at pH 2. Chitosan, chitosan-ECH and chitosan macropore showed precentage adsorption for procion red respectively were 68.0%, 61.0% and 78.8%. Chitosan modification with crosslinking and porogen addition proved to improve stability and adsorption ability of chitosan.