| A Facile Synthetic Approach for Cu(OH)2-Cu2O
Heterostructure: A Stable Catalyst for Pollutant
Degradation |
Revathi Kottappara,a Shajesh Palantavidab and Baiju Kizhakkekilikoodayil Vijayana, *
Pages : 118-126
DOI : 10.1080/0371750X.2021.1904289 |
| Abstract |
| In the present study, we report the development of morphologically different copper
and Cu(OH)2-Cu2O nanostructures by a single step chemical reduction method using
ascorbic acid as environmental friendly reducing agent. Morphology and
crystallographic patterns of the synthesized samples were analyzed using X-ray
diffraction and scanning electron microscopy. Determination of catalytic performance
of both copper and Cu(OH)2-Cu2O nanostructure towards hydrogenation reduction of
para nitrophenol and para nitroaniline using sodium borohydride as the reducing agent
suggested that Cu(OH)2-Cu2O nanostructure is comparatively efficient in hydrogenating
the nitro aromatic compounds. The improved hydrogenation capacity was suggested
to be due to the formation of an in-situ composite of Cu2O-Cu during the time of reduction
reaction. Analysis on the degradation capacity of developed samples for methyl orange
degradation using sodium borohydride as the reducing agent indicated significantly
high reduction rate for Cu(OH)2-Cu2O nanostructure with a rate constant value of
0.819 min–1, which is higher than many of the previously reported values.
[Keywords: Copper, Cuprous oxide, Nitroaniline, Nitrophenol, Catalysis] |
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