Next Article in Journal
Influence of Carbyne Content on the Mechanical Performance of Nanothick Amorphous Carbon Coatings
Previous Article in Journal
Plasma Enabled Fe2O3/Fe3O4 Nano-aggregates Anchored on Nitrogen-doped Graphene as Anode for Sodium-Ion Batteries
Open AccessArticle

Biogenic-Mediated Synthesis of Mesoporous Cu2O/CuO Nano-Architectures of Superior Catalytic Reductive towards Nitroaromatics

1
Chemistry Department, College of Science, Jouf University, P.O. Box 2014, Sakaka 42421, Saudi Arabia
2
Chemistry Department, Faculty of Science, Fayoum University, Fayoum 63514, Egypt
3
Department of Chemistry, Faculty of Science, Suez University, Suez 43511, Egypt
*
Authors to whom correspondence should be addressed.
Nanomaterials 2020, 10(4), 781; https://doi.org/10.3390/nano10040781
Received: 31 March 2020 / Revised: 15 April 2020 / Accepted: 16 April 2020 / Published: 18 April 2020
(This article belongs to the Section Energy and Catalysis)
Cu2O/CuO nano-architectures were prepared by biogenic-mediated synthesis using pomegranate seeds extract as the reducing/stabilizing mediator during an aqueous solution combustion process of the Cu2+ precursor. The fabricated Cu2O/CuO nanocomposite were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), field emission scanning electron microscopy (FESEM) and nitrogen sorption. Nitrobenzene (NB) was applied a probe to test the catalytic activities of the fabricated Cu2O/CuO nanocomposite. The results indicated that pomegranate seeds extract (PSE) manifest Cu2O/CuO NPs of tiny particle size, larger pore volume and greater surface area compared to the bulky CuO synthesized in the absence of PSE. The surface area and total pore volume of Cu2O/CuO NPs were 20.1 m2 g−1 and 0.0362 cm3 g−1, respectively. The FESEM image shows the formation of broccoli-like architecture. The fabricated Cu2O/CuO nanocomposite possesses surprising activity towards the reduction of nitro compounds in the presence of NaBH4 into amino compounds with high conversion (94%). The reduction process was performed in water as a green solvent. Over four consecutive cycles the resulting nanocomposite also exhibits outstanding stability. In addition, the resulting Cu2O/CuO nanocomposite suggested herein may encourage scientists to start preparing more cost-effective catalysts for marketing instead of complicated catalysts. View Full-Text
Keywords: biogenic synthesis; pomegranate seeds extract; Cu2O/CuO nanoparticles; aniline; nitrobenzene reduction biogenic synthesis; pomegranate seeds extract; Cu2O/CuO nanoparticles; aniline; nitrobenzene reduction
Show Figures

Graphical abstract

MDPI and ACS Style

Alhumaimess, M.S.; Essawy, A.A.; Kamel, M.M.; Alsohaimi, I.H.; Hassan, H.M.A. Biogenic-Mediated Synthesis of Mesoporous Cu2O/CuO Nano-Architectures of Superior Catalytic Reductive towards Nitroaromatics. Nanomaterials 2020, 10, 781.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop