A facile preparation of ZnFe2O4–CuO-N/B/RGO and ZnFe2O4–CuO–C3N4 ternary heterojunction nanophotocatalyst: characterization, biocompatibility, photo-Fenton-like degradation of MO and magnetic properties
To improve the low photocatalytic efficiency, powerful UV light activation, and facile electron transport of ZnFe 2 O 4 –CuO the combination of different C 3 N 4 and N/B/RGO nanosheets in ZnFe 2 O 4 –CuO–C 3 N 4 and ZnFe 2 O 4 –CuO-N/B/RGO ternary nanoheterojunction fabricated that lead to decrease...
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Published in: | Journal of materials science. Materials in electronics Vol. 32; no. 5; pp. 5457 - 5472 |
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Main Authors: | , , , , , , , , |
Format: | Journal Article |
Language: | English |
Published: |
New York
Springer US
01-03-2021
Springer Nature B.V |
Subjects: | |
Online Access: | Get full text |
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Summary: | To improve the low photocatalytic efficiency, powerful UV light activation, and facile electron transport of ZnFe
2
O
4
–CuO the combination of different C
3
N
4
and N/B/RGO nanosheets in ZnFe
2
O
4
–CuO–C
3
N
4
and ZnFe
2
O
4
–CuO-N/B/RGO ternary nanoheterojunction fabricated that lead to decrease recombination of electron/hole pairs and high photocatalytic efficiency for degradation of MO organic pollutants. The ZnFe
2
O
4
, ZnFe
2
O
4
-N/B/RGO, CuO-N/B/RGO, ZnFe
2
O
4–
CuO, ZnFe
2
O
4
–CuO-N/RGO, ZnFe
2
O
4
–CuO-B/RGO, ZnFe
2
O
4
–CuO-RGO, ZnFe
2
O
4
–CuO-N/B/RGO and ZnFe
2
O
4
–CuO–C
3
N
4
photocatalysts were fabricated by sol–gel technique using melamine, zinc nitrate, ferric nitrate and copper nitrate hexahydrate as precursors. The prepared ZnFe
2
O
4
–CuO–C
3
N
4
photocatalysts have a narrower bandgap than that of ZnFe
2
O
4
–CuO-N/B/RGO ternary heterojunction, resulting in higher photocatalytic activity for Fenton-type photodecomposition of methyl orange (MO). The activity of the compounds as a photocatalyst can be attributed to an electron transfer process on the surface of the photocatalyst, where the ZnFe
2
O
4
–CuO–C
3
N
4
is a powerful electron donor and electron acceptor for the oxidized MO under ultra-violet (UV) light irradiation. ZnFe
2
O
4
–CuO–C
3
N
4
ternary heterojunction photocatalyst show a red shift (lowest bandgap) in absorption and excellent photocatalytic degradation of MO. The particle sizes of ZnFe
2
O
4
and CuO nanoparticles (NPs) were in the ranges of ~ 650–750 and ~ 50–150 nm, respectively. The CuO and ZnFe
2
O
4
samples were displayed spherical and cubic morphology in FESEM images, respectively. Among the as-prepared nanostructures ZnFe
2
O
4
–CuO–C
3
N
4
show the highest photocatalytic activity and eliminate 95.84% (80 min) of methyl orange under UV light irradiation. |
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ISSN: | 0957-4522 1573-482X |
DOI: | 10.1007/s10854-021-05268-z |