Multifunctional Applications of Graphene-Doped PMMA Nanocomposite Membranes for Environmental Photocatalytic

Graphene (GNP)-filled polymethyl methacrylate (PMMA) nanocomposites (NCs) were prepared using a facile casting method. Nanocomposites were fully identified through X-ray diffraction and scanning electron microscopy which confirms some interactions between PMMA and GNP layers lead to a reduction in n...

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Bibliographic Details
Published in:Journal of inorganic and organometallic polymers and materials 2020-07, Vol.30 (7), p.2708-2719
Main Authors: Hussien, Mai S. A., Mohammed, M. I., Yahia, I. S.
Format: Article
Language:English
Subjects:
Amoxicillin
Catalytic activity
Chemistry
Chemistry and Materials Science
Conduction bands
Electrical resistivity
Graphene
Inorganic Chemistry
Nanocomposites
Organic Chemistry
Photocatalysis
Photodegradation
Polymer Sciences
Polymethyl methacrylate
Valence band
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Summary:Graphene (GNP)-filled polymethyl methacrylate (PMMA) nanocomposites (NCs) were prepared using a facile casting method. Nanocomposites were fully identified through X-ray diffraction and scanning electron microscopy which confirms some interactions between PMMA and GNP layers lead to a reduction in nanocomposite crystallinity. In this work, the impact of graphene on the optical, electrical characteristics and photocatalytic activity of PMMA polymeric matrix. The rapid increase in absorbance values was observed in the UV-region was linked to the optical transitions of GNP electrons from the valence band to the conduction band. Both the bandgaps ( E g d and E g ind ) have been reduced with graphene addition. The calculated Urbach’s Band tail has been increased with GNP content. With the enhanced frequency and GNP contents, the AC electrical conductivity tends to rise. A 1.665 wt% GNP/PMMA exhibits the most effective activity in amoxicillin photodegradation under visible radiation at 30 min due to decrease electron–hole recombination. The kinetics of the photodegradation process was investigated. The GNP/PMMA nanocomposites are a promising candidate in electronic, optoelectrical and environmental applications.
ISSN:1574-1443
1574-1451
DOI:10.1007/s10904-019-01433-4