Synthesis of g-C3N4 Decorated with ZIF-8 and CuFe2O4 as a Highly Efficient and Magnetically Separable Photocatalyst for Degradation of Tetracycline

Kumar, Anjan and Hussein, Ali M. and Altalbawy, Farag M.A. and Kaur, Mandeep and Kaur, Harpreet and Salah Jalal, Sarah and Hassan Zain Al-Abdeen, Salah and Muzammil, Khursheed and Alhadrawi, Merwa (2024) Synthesis of g-C3N4 Decorated with ZIF-8 and CuFe2O4 as a Highly Efficient and Magnetically Separable Photocatalyst for Degradation of Tetracycline. Arabian Journal of Chemistry, 17 (9). p. 105912. ISSN 18785352

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Abstract

In this study, for the first time a magnetically recoverable zeolitic imidazolate framework-8 (ZIF-8) / graphite
carbon nitride (g-C3N4)/ cooper ferrite (CuFe2O4) nanocomposite was prepared through a fast and simple wet
impregnation procedure. The magnetic behavior of the ZIF-8/g-C3N4/CuFe2O4 heterostructure was used for the
easy recovery of the nanocomposite by an external magnet. After studying the structural, crystallinity, magnetic,
and photophysical properties of the as-syntesized sample, its application was investigated for the enhanced
photodegradation of tetracycline under visible light illumination. The band gap energies for ZIF-8, g-C3N4, and
CuFe2O4 were obtained 5.1 eV, 2.8 eV, and 1.3 eV, respectively. After combination of ZIF-8, g-C3N4, and
CuFe2O4, the band gap energy was obtained to 2.4 eV, which indicate the improvement of photocatalytic activity
of ZIF-8/g-C3N4/CuFe2O4 nanocomposite. Among the as-synthesized photocatalyst samples, the ZIF-8/g-C3N4/
CuFe2O4 showed an excellent photocatalytic activity (99.15 %) for degradation of tetracycline within 65 min
irradiation of visible light, solution pH of 5 and photocatalyst dosage of 0.75 g/L. The rate constant of the ZIF-8/
g-C3N4/CuFe2O4 is almost 13.1, 9.9, and 15.6 times higher than that of ZIF-8, g-C3N4, and CuFe2O4, respectively.
The ZIF-8/g-C3N4/CuFe2O4 heterojunction showed the effective degradation activity for four consecutive cycles,
which exhibited its excellent reusability and stability. Moreover, the free radical quenching tests confirmed that
holes, and hydroxyl radicals were the main reaction species for degradation of tetracycline. Altogether the
preparation of novel ZIF-8/g-C3N4/CuFe2O4 provides an promise avenue for the development of high potential
magtenticaly photocatalytic systems for sustainable tetracycline production with remarkable efficiencies.

Item Type: Article
Uncontrolled Keywords: Photocatalyst , ZIF-8/g-C3N4/CuFe2O4 nanocomposite , Tetracycline , Wastewater treatment
Subjects: G Geography. Anthropology. Recreation > GE Environmental Sciences
Q Science > Q Science (General)
T Technology > T Technology (General)
Divisions: Department of Biomedical Science > Research papers
Depositing User: ePrints Depositor
Date Deposited: 20 Nov 2024 10:19
Last Modified: 20 Nov 2024 10:19
URI: https://eprints.cihanuniversity.edu.iq/id/eprint/2793

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