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Preparation, characterization, and photocatalytic degradation properties of polyacrylamide/calcium alginate/ T i O 2 composite film
Author(s) -
Wei Shuxin,
Zhang Xinxin,
Zhao Kongyin,
Fu Yifan,
Li Zhihui,
Lin Beibei,
Wei Junfu
Publication year - 2016
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.23295
Subject(s) - materials science , scanning electron microscope , polyacrylamide , aqueous solution , methyl orange , composite number , composite material , photocatalysis , chemical engineering , titanium dioxide , degradation (telecommunications) , nuclear chemistry , polymer chemistry , chemistry , organic chemistry , telecommunications , computer science , engineering , catalysis
Titanium dioxide (TiO 2 ) nanoparticles were dispersed in the sodium alginate and acrylamide aqueous solution to prepare the casting solution. The casting solution was spread on a glass plate by a glass rod enlaced with brass wires to control the thickness of the film. Then polyacrylamide/calcium alginate/TiO 2 (PAM/CA/T) composite film was obtained after UV irradiation and crosslinking by CaCl 2 . The PAM/CA/T film was characterized by scanning electron microscopy and transmission electron microscope. The mechanical properties of the films were tested in wet form and the results showed that PAM/CA/T film had good strength and toughness. PAM/CA/T films did not rupture after swelling in 5.0 wt% NaCl solution and still had good mechanical properties. The PAM/CA/T hydrogel film provided a suitable carrier for TiO 2 in the photocatalytic degradation of dyes and the degradation rate of PAM/CA/T‐30 for methyl orange reached 80.8%. The PAM/CA/T film had good reusability and could degrade dyes in a high concentration of NaCl solution. POLYM. COMPOS. 37:1292–1301, 2016. © 2014 Society of Plastics Engineers