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FABRICATION AND CHARACTERISATION OF CHITOSAN/COCONUT FIBER COMPOSITE MEMBRANES FOR ELIMINATING CU2+ AND PB2+ FROM AQUEOUS SOLUTIONS
Author(s) -
Thi-Cam-Trang TRUONG,
Ha Manh Bui,
Dang-Khoa NGUYEN,
Takaomi Kobayashi
Publication year - 2019
Publication title -
architecture civil engineering environment
Language(s) - English
Resource type - Journals
eISSN - 2720-6947
pISSN - 1899-0142
DOI - 10.21307/acee-2019-016
Subject(s) - glutaraldehyde , chitosan , aqueous solution , fiber , membrane , composite number , nuclear chemistry , metal ions in aqueous solution , chemistry , metal , hollow fiber membrane , materials science , copper , chemical engineering , chromatography , composite material , organic chemistry , biochemistry , engineering
Coconut fiber was chemically modified by NaOCl/NaOH, and then was composited through a cross-linking reaction with glutaraldehyde. The chitosan/coconut fiber (CTS/CF) composite membranes were prepared at various ratios of coconut fiber (CF) and then tested to determine their ability to eliminate aqueous heavy metals. The results showed that CTS/CF composite membranes having CF ratio of 80 wt% exhibited good mechanical strength as 89.8 MPa. In the elimination experiment of heavy metal ions, the CTS/CF 20/80 also showed that the removal capacity of Cu (II) and Pb (II) were over 90%.

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