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Transactions of the INDIAN CERAMIC SOCIETY   Vol. 80  2021
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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