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Methylene blue adsorption of chitosan/ nano‐TiO 2 films prepared by 3D printing method
Author(s) -
Dung Hoang Tran,
Chinh Nguyen Thuy,
Lu Le Trong,
Hoang Thai
Publication year - 2021
Publication title -
vietnam journal of chemistry
Language(s) - English
Resource type - Journals
eISSN - 2572-8288
pISSN - 0866-7144
DOI - 10.1002/vjch.202000171
Subject(s) - methylene blue , chitosan , adsorption , nano , chemical engineering , materials science , chemistry , nanotechnology , nuclear chemistry , organic chemistry , composite material , photocatalysis , catalysis , engineering
This paper presents the preparation of chitosan/nano‐TiO 2 films with different contents of nano‐TiO 2 by 3D printing technology. The ink solution for printing was prepared by dissolution of chitosan in 1 % acetic acid before dispersing nano‐TiO 2 in the chitosan solution by ultrasonic method. The investigated nano‐TiO 2 contents were of 3 and 5 wt.% in comparison with chitosan weight. The obtained chitosan/nano‐TiO 2 films were characterized by infrared spectroscopy (IR), field emission scanning electron microscopy (FESEM), and ultraviolet‐visible spectroscopy (UV‐Vis) methods. Besides, the water adsorption ability and moisture content in these films were also evaluated. The chitosan/nano‐TiO 2 films were used for adsorption of methylene blue in aqueous. The research results confirmed that the chitosan/nano‐TiO 2 films are promising adsorbents for removal of coloring matter.