NDLI: Facile fabrication of CuO/Cu<sub>2</sub>O composites with high catalytic performances

Content Provider	Royal Society of Chemistry (RSC)
Author	Jang, Du-Jeon Choi, Dayeon
Copyright Year	2017
Abstract	The diverse morphologies of CuO/Cu2O composites having good catalytic properties for the reduction of 4-nitrophenol in the presence of NaBH4 have been controlled facilely by adjusting the concentrations of NaOH during the wet etching of Cu2O cubes. The catalytic activity of CuO/Cu2O composites is found to depend highly on their morphologies; in particular, CuO/Cu2O composites prepared at 0.3 M concentration of NaOH(aq) have shown the strongest catalytic performances. Regarding the highest catalytic activity of the composites with cavities surrounded by CuO flakes, the confinement effect is considered to expedite electron transfer from BH4− to the dye molecule enormously by reducing the activation energy largely; the energetically favorable formation of the activated complex at the inner walls of a CuO box lowers the energy barrier substantially. In brief, CuO/Cu2O composites having high catalytic activity have been prepared facilely via a controlled oxidation process of Cu2O cubes, and they may be applied to treat wastewater in an inexpensive way without employing the commonly used noble-metal catalysts.
Starting Page	2964
Ending Page	2972
Page Count	9
File Format	HTM / HTML PDF
ISSN	11440546
Volume Number	41
Issue Number	8
Journal	New Journal of Chemistry
DOI	10.1039/c6nj03949a
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Copper(II) oxide Chemical milling Dye 4-Nitrophenol Activated complex Noble metal Sodium borohydride Wastewater Activation energy
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Catalysis

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