Preparation and characterization of chitosan-zeolite composites

• Published in: Journal of Applied Polymer Science
• Main Author: Wan Ngah W.S.; Teong L.C.; Wong C.S.; Hanafiah M.A.K.M.
• Format: Article
• Language: English
• Published: 2012
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84863421746&doi=10.1002%2fapp.36503&partnerID=40&md5=bdd3902058bbf84d9bee2ff196a229b4

Double crosslinked chitosan-zeolite (CZ-2) and noncrosslinked chitosan-zeolite (CZ-0) composites were prepared and characterized by using Fourier transform infrared (FTIR) spectrometer, surface area analyzer, scanning electron microscope coupled with energy dispersive X-ray (SEM-EDX) spectrometer, thermogravimetric analyzer (TGA), X-ray diffraction analyzer (XRD) and carbon, hydrogen, nitrogen (CHN) analyzer. After crosslinking, CZ-2 showed a reduction in surface area and CHN content in comparison to chitosan, zeolite, and CZ-0. Crosslinking resulted in improved stability of CZ-2 in distilled water, acetic acid and NaOH as CZ-2 recorded the lowest percentage of swelling. XRD diffractograms confirmed the formation of composites as there was a marked difference in the peak intensity at 2Î̧ = 19.8°. © 2012 Wiley Periodicals, Inc.