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Journals
Architecture, Civil Engineering, Environment
Volume 12 (2019): Issue 1 (March 2019)
Open Access
FABRICATION AND CHARACTERISATION OF CHITOSAN/COCONUT FIBER COMPOSITE MEMBRANES FOR ELIMINATING CU
2+
AND PB
2+
FROM AQUEOUS SOLUTIONS
Thi-Cam-Trang TRUONG
Thi-Cam-Trang TRUONG
,
Manh-Ha BUI
Manh-Ha BUI
,
Dang-Khoa NGUYEN
Dang-Khoa NGUYEN
and
Takaomi KOBAYASHI
Takaomi KOBAYASHI
| May 20, 2019
Architecture, Civil Engineering, Environment
Volume 12 (2019): Issue 1 (March 2019)
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Article Category:
research-article
Published Online:
May 20, 2019
Page range:
163 - 169
Received:
Oct 08, 2018
Accepted:
Nov 30, 2018
DOI:
https://doi.org/10.21307/acee-2019-016
Keywords
Chitosan
,
Coconut fiber
,
Membrane
,
Heavy metals
© 2019 Thi-Cam-Trang TRUONG; et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Figure 1.
The chemical structure of (a) CTS, (b) Glutaraldehyde and the appearance of the CTS/CF ratio of 20/80 membrane cross-linked with Glutaraldehyde (c)
Scheme 1.
The pervaporation apparatus of the elimination process of the heavy metal ions
Figure 2.
(a) The FT-IR spectra of the CTS, (b) the cross-linked CTS/CF 20/80 membrane, and (c) the CF modified with NaClO/NaOH
Figure 3.
(a) SEM of the CF treated with NaClO/NaOH, (b) the CTS/CF 20/80 membrane surfaces, and (c) the cross-sectional area of the CTS/CF 20/80 membrane
Figure 4.
(a) SD (%) and (b) EWC (%) of the CTS/CF membranes M1: CTS/CF (100/0), M3: CTS/CF (20/80), and M4: CTS/CF (50/50)
Figure 5.
Efficiency of CTS/CF membranes in heavy metal removal, M1: CTS/CF (100/0), M2: CTS/CF (80/20), M3: CTS/CF (20/80), and M4: CTS/CF (50/50)
Figure 6.
(a) Interaction between CTS/CF and glutaraldehyde and (b) the complexing mechanism of CTS/CF membranes with cations
Physical properties of the CTS/CF composite membranes at various ratios of CF
Sample
Ratio CTS:CF
SD (%)
EWC (%)
TS (MPa)
M1
100:0
6.3
41.6
45.6
M2
80:20
7.5
46.0
55.6
M3
20:80
10.1
52.5
89.8
M4
50:50
11.9
51.6
75.2