Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton Catalysts
The heterogeneous photo-Fenton type system has huge fame in the field of wastewater treatment due to its reusability and appreciable photoactivity within a wide pH range. This research investigates the synthesis and characterization of iron(II) doped copper ferrite (Cu<sup>II</sup><su...
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| Format: | Article |
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MDPI AG
2020-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/5/921 |
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| author | Asfandyar Khan Zsolt Valicsek Ottó Horváth |
| author_facet | Asfandyar Khan Zsolt Valicsek Ottó Horváth |
| author_sort | Asfandyar Khan |
| collection | DOAJ |
| description | The heterogeneous photo-Fenton type system has huge fame in the field of wastewater treatment due to its reusability and appreciable photoactivity within a wide pH range. This research investigates the synthesis and characterization of iron(II) doped copper ferrite (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub> nanoparticles (NPs) and their photocatalytic applications for the degradation of methylene blue (MB) as a model dye. The NPs were prepared via simple co-precipitation technique and calcination. The NPs were characterized by using Raman spectroscopy, X-ray diffractometry (XRD), scanning electron microscopy (SEM), and diffuse reflectance spectroscopy (DRS). SEM reveals the structural change from the spherical-like particles into needle-like fine particles as the consequence of the increasing ratio of copper(II) in the ferrites, accompanied by the decrease of the optical band-gap energies from 2.02 to 1.25 eV. The three major determinants of heterogeneous photo-Fenton system, namely NPs concentration, hydrogen peroxide concentration and pH, on the photocatalytic degradation of MB were studied. The reusability of NPs was found to be continuously increasing during 4 cycles. It was concluded that iron(II) doped copper ferrites, due to their favorable band-gap energies and peculiar structures, exhibit a strong potential for photocatalytic-degradation of dyes, for example, MB. |
| first_indexed | 2024-03-10T19:56:05Z |
| format | Article |
| id | doaj.art-081d6f6f601b48bab2b405cb3e70a505 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T19:56:05Z |
| publishDate | 2020-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-081d6f6f601b48bab2b405cb3e70a5052023-11-19T23:56:38ZengMDPI AGNanomaterials2079-49912020-05-0110592110.3390/nano10050921Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton CatalystsAsfandyar Khan0Zsolt Valicsek1Ottó Horváth2Department of General and Inorganic Chemistry, Faculty of Engineering, University of Pannonia, Egyetem utca 10, H-8200 Veszprém, HungaryDepartment of General and Inorganic Chemistry, Faculty of Engineering, University of Pannonia, Egyetem utca 10, H-8200 Veszprém, HungaryDepartment of General and Inorganic Chemistry, Faculty of Engineering, University of Pannonia, Egyetem utca 10, H-8200 Veszprém, HungaryThe heterogeneous photo-Fenton type system has huge fame in the field of wastewater treatment due to its reusability and appreciable photoactivity within a wide pH range. This research investigates the synthesis and characterization of iron(II) doped copper ferrite (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub> nanoparticles (NPs) and their photocatalytic applications for the degradation of methylene blue (MB) as a model dye. The NPs were prepared via simple co-precipitation technique and calcination. The NPs were characterized by using Raman spectroscopy, X-ray diffractometry (XRD), scanning electron microscopy (SEM), and diffuse reflectance spectroscopy (DRS). SEM reveals the structural change from the spherical-like particles into needle-like fine particles as the consequence of the increasing ratio of copper(II) in the ferrites, accompanied by the decrease of the optical band-gap energies from 2.02 to 1.25 eV. The three major determinants of heterogeneous photo-Fenton system, namely NPs concentration, hydrogen peroxide concentration and pH, on the photocatalytic degradation of MB were studied. The reusability of NPs was found to be continuously increasing during 4 cycles. It was concluded that iron(II) doped copper ferrites, due to their favorable band-gap energies and peculiar structures, exhibit a strong potential for photocatalytic-degradation of dyes, for example, MB.https://www.mdpi.com/2079-4991/10/5/921heterogeneous photo-Fenton type systemiron(II) doped copper ferritephotocatalytic-degradationmethylene blue (MB) |
| spellingShingle | Asfandyar Khan Zsolt Valicsek Ottó Horváth Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton Catalysts Nanomaterials heterogeneous photo-Fenton type system iron(II) doped copper ferrite photocatalytic-degradation methylene blue (MB) |
| title | Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton Catalysts |
| title_full | Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton Catalysts |
| title_fullStr | Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton Catalysts |
| title_full_unstemmed | Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton Catalysts |
| title_short | Synthesis, Characterization and Application of Iron(II) Doped Copper Ferrites (Cu<sup>II</sup><sub>(x)</sub>Fe<sup>II</sup><sub>(1-x)</sub>Fe<sup>III</sup><sub>2</sub>O<sub>4</sub>) as Novel Heterogeneous Photo-Fenton Catalysts |
| title_sort | synthesis characterization and application of iron ii doped copper ferrites cu sup ii sup sub x sub fe sup ii sup sub 1 x sub fe sup iii sup sub 2 sub o sub 4 sub as novel heterogeneous photo fenton catalysts |
| topic | heterogeneous photo-Fenton type system iron(II) doped copper ferrite photocatalytic-degradation methylene blue (MB) |
| url | https://www.mdpi.com/2079-4991/10/5/921 |
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