Enhanced ferromagnetic and photocatalytic properties in Mn or Fe doped p-CuO/n-ZnO nanocomposites

Yakout, S.M.; El-Sayed, A. M.

doi:10.1016/j.apt.2019.08.033

Cited by 33 publications

(5 citation statements)

References 38 publications

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“…As a result, ZnO can only be activated by UV irradiation and the light quantum efficiency is low. In order to prevent the recombination of electron and hole pairs and enhance the photocatalytic performance in the UV region by narrowing the band gap of ZnO semiconductors, much research has been done on functionalizing synthesized ZnO with other materials [17], such as making the nanocomposites with graphene oxide (GO) and reduced graphene oxide (rGO) [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

Lin

Hong

Chen

et al. 2020

Journal of Nanomaterials

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Beneficial from the excellent optical performance of zinc oxide (ZnO) nanocrystals and the absorption properties of graphene oxide (GO), the nanocomposites of ZnO and GO with synergistic photocatalytic effects were prepared by a precipitation method, in which GO is utilized as the catalyst carrier. The prepared composites were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, UV-vis spectroscopy, field emission scanning electron microscopy, and transmission electron microscopy and also performed photocatalytic activity for the nanocomposites. The results show that ZnO is uniformly loaded on the surface of GO assisted by an effective interface coupling. Due to interface coupling between ZnO and GO, electrons can be directly transferred from the valence band of ZnO to GO. The photodegradation efficiency of the composites reaches to 97.6%, and the first-order reaction rate constant of photodegradation is calculated to be 0.04401 min-1. The novel ZnO-GO composites with excellent photocatalytic performance display promising potential applications in the field of photocatalysis and will provide a new platform for building next-generation graphene-based semiconductor composites.

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Section: Introductionmentioning

confidence: 99%

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

Lin

Hong

Chen

et al. 2020

Journal of Nanomaterials

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“… 62 The shift toward a higher angle of the peak related to ZnO crystalline plane was observed for metal-doped ZnO with a smaller cation than Zn 2+ , e.g., Fe- 63,64 or Mn- doped ZnO. 65,66 Fe and Mn were detected in both CD_ht and CD_mw aqueous solutions by ICP-OES analysis. This suggests that the shift of peaks on the XRD patterns of ZnO_ x CD nanocomposites may be caused by Fe or Mn doping.…”

Section: Resultsmentioning

confidence: 90%

ZnO-decorated green-synthesized multi-doped carbon dots from Chlorella pyrenoidosa for sustainable photocatalytic carbamazepine degradation

Fiszka Borzyszkowska,

Sulowska,

Czaja

et al. 2023

RSC Adv.

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“…There are no peaks detected by XRD for Zn metal, Cu metal, or any other compounds which indicates the high purity of formed ZnO-CuO nanocomposites. In addition, there is no observed shift in the corresponding peaks of either ZnO or CuO, which indicates the heterostructure formation of ZnO-CuO and no incorporation [ 49 ].…”

Section: Resultsmentioning

confidence: 99%

Acacia nilotica Pods’ Extract Assisted-Hydrothermal Synthesis and Characterization of ZnO-CuO Nanocomposites

2022

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This work represents a novel combination between Acacia nilotica pods’ extract and the hydrothermal method to prepare nanoparticles of pure zinc oxide and pure copper oxide and nanocomposites of both oxides in different ratios. Five samples were prepared with different ratios of zinc oxide and copper oxide; 100% ZnO (ZC0), 75% ZnO: 25% CuO (ZC25), 50% ZnO: 50% CuO (ZC50), 25% ZnO: 75% CuO (ZC75), and 100% CuO (ZC100). Several techniques have been applied to characterize the prepared powders as FTIR, XRD, SEM, and TEM. The XRD results confirm the formation of the hexagonal wurtzite phase of zinc oxide and the monoclinic tenorite phase of copper oxide. The microscopy results show the formation of a heterostructure of nanocomposites with an average particle size of 13–27 nm.

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Enhanced ferromagnetic and photocatalytic properties in Mn or Fe doped p-CuO/n-ZnO nanocomposites

Cited by 33 publications

References 38 publications

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

Green Synthesis of ZnO-GO Composites for the Photocatalytic Degradation of Methylene Blue

ZnO-decorated green-synthesized multi-doped carbon dots from Chlorella pyrenoidosa for sustainable photocatalytic carbamazepine degradation

Acacia nilotica Pods’ Extract Assisted-Hydrothermal Synthesis and Characterization of ZnO-CuO Nanocomposites

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