TITLE:
Fabrication and Characterization of CTS/Coconut Composite Membranes Crosslinked with Glutaraldehyde for Elimination of Heavy Metal in Aqueous Solution
AUTHORS:
Truong Thi Cam Trang, Nguyen Quang Huy, Takaomi Kobayashi
KEYWORDS:
Crab Shell, Membrane Technology, Chitosan, Coconut Fiber, Heavy Metal
JOURNAL NAME:
Journal of Agricultural Chemistry and Environment,
Vol.8 No.2,
April
4,
2019
ABSTRACT: Chitosan/coconut (CTS/coconut) composite membranes were successfully prepared by the cross-linking reaction with glutaraldehyde
and they were applied in eliminating heavy metals from aqueous solutions. The
cross-linked membranes were obtained at the ratios of 1/1, 1/1.5 and 1/2 and
the coconut fiber was chemically treated by NaOCl/NaOH. The best ratio of
CTS/coconut fiber is found to be 1/1.5 which has a relatively high stability with the degree of swelling (DS) and solvent content (SC) of membrane to be 13.33% and 69.88%, respectively.
The results also indicate that the CTS membranes showed preferential separation
of heavy metals for blend CTS/coconut membranes.