E-beam irradiation-induced synthesis of hydroxyethyl cellulose/(Cu 2 O-rGO)/BiVO 4 -based nanocomposite for photocatalytic remediation of wastewater under visible light

Using E-beam irradiation as an eco-friendly technique for initiation and crosslinking, a series of Hydroxyethyl Cellulose-poly vinyl alcohol copolymer hydrogels were synthesized as templates for cuprous oxide (Cu O), reduced graphene oxide (rGO) and bismuth vanadate (BiVO ) nanoparticles to be used...

Full description

Saved in:
Bibliographic Details
Published inInternational journal of biological macromolecules Vol. 258; no. Pt 1; p. 128681
Main Authors Mohamed, Asmaa M, Abdelwahab, S M, Elsawy, Naeem M, Ahmed, Nehad A, Raafat, Amany I
Format Journal Article
LanguageEnglish
Published Netherlands 01.02.2024
Subjects
Cellulose
Graphite
Light
Nanocomposites - chemistry
Wastewater
Photocatalysis
CuO@rGO
Nanocomposite
E-beam irradiation
BiVO
Online AccessGet full text

Cover

More Information
Summary:Using E-beam irradiation as an eco-friendly technique for initiation and crosslinking, a series of Hydroxyethyl Cellulose-poly vinyl alcohol copolymer hydrogels were synthesized as templates for cuprous oxide (Cu O), reduced graphene oxide (rGO) and bismuth vanadate (BiVO ) nanoparticles to be used as nanocomposites photocatalysts for methylene blue (MB) dye decolorization using visible light. Preparation conditions were optimized to ensure the construction of a good network architecture and therefore the highest gelation degree. For the preparation of (Cu O@rGO)/BiVO nanocomposites, a series of rGO was decorated by Cu O using the precipitation method, followed by mixing with BiVO which was synthesized hydrothermally. (EDX), (XRD), (TEM), and (SEM) were used for nanoparticle characterization. The thermal characteristics of the fabricated nanocomposites were evaluated using thermal gravimetric analysis. The presence of rGO enhanced the decolorization efficiency of MB about 20 % higher than that of (HEC-PVA)/Cu O which achieves only (59 %) decolorization efficiency. After the addition of BiVO NPs, the decolorization efficiency increased to reach 90 % after 150 min at pH 11 using a 10 ppm MB solution. The developed (HEC-PVA)/(Cu O@rGO)/BiVO photocatalyst exhibits efficient reusability for 5 cycles. Treated dyed water shows a germination index (GI) of 82 % suggesting its suitability for irrigation of playgrounds and gardens.
ISSN:1879-0003