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Review

Surveying the Synthesis, Optical Properties and Photocatalytic Activity of Cu3N Nanomaterials

Institute of Forestry and Engineering Sciences, Estonian University of Life Sciences, Kreutzwaldi 56/1, 51014 Tartu, Estonia
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Academic Editor: Jun-ho Yum
Nanomaterials 2022, 12(13), 2218; https://doi.org/10.3390/nano12132218
Received: 23 May 2022 / Revised: 20 June 2022 / Accepted: 23 June 2022 / Published: 28 June 2022
(This article belongs to the Special Issue Functional Nanomaterials for Optoelectronics and Photocatalysis)
This review addresses the most recent advances in the synthesis approaches, fundamental properties and photocatalytic activity of Cu3N nanostructures. Herein, the effect of synthesis conditions, such as solvent, temperature, time and precursor on the precipitation of Cu3N and the formation of secondary phases of Cu and Cu2O are surveyed, with emphasis on shape and size control. Furthermore, Cu3N nanostructures possess excellent optical properties, including a narrow bandgap in the range of 0.2 eV–2 eV for visible light absorption. In that regard, understanding the effect of the electronic structure on the bandgap and on the optical properties of Cu3N is therefore of interest. In fact, the density of states in the d-band of Cu has an influence on the band gap of Cu3N. Moreover, the potential of Cu3N nanomaterials for photocatalytic dye-degradation originates from the presence of active sites, i.e., Cu and N vacancies on the surface of the nanoparticles. Plasmonic nanoparticles tend to enhance the efficiency of photocatalytic dye degradation of Cu3N. Nevertheless, combining them with other potent photocatalysts, such as TiO2 and MoS2, augments the efficiency to 99%. Finally, the review concludes with perspectives and future research opportunities for Cu3N-based nanostructures. View Full-Text
Keywords: Cu3N; nanostructures; synthesis; optical properties; photocatalysis Cu3N; nanostructures; synthesis; optical properties; photocatalysis
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MDPI and ACS Style

Paredes, P.; Rauwel, E.; Rauwel, P. Surveying the Synthesis, Optical Properties and Photocatalytic Activity of Cu3N Nanomaterials. Nanomaterials 2022, 12, 2218. https://doi.org/10.3390/nano12132218

AMA Style

Paredes P, Rauwel E, Rauwel P. Surveying the Synthesis, Optical Properties and Photocatalytic Activity of Cu3N Nanomaterials. Nanomaterials. 2022; 12(13):2218. https://doi.org/10.3390/nano12132218

Chicago/Turabian Style

Paredes, Patricio, Erwan Rauwel, and Protima Rauwel. 2022. "Surveying the Synthesis, Optical Properties and Photocatalytic Activity of Cu3N Nanomaterials" Nanomaterials 12, no. 13: 2218. https://doi.org/10.3390/nano12132218

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