Novel perovskite-based composites, La1−xNdxFeO3@activated carbon, as efficient catalysts for the degradation of organic pollutants by heterogeneous electro-Fenton reactions

Perovskites, which have excellent electrocatalytic properties, are promising for use in heterogeneous catalysis. However, the design and development of green and effective electrocatalysts for environmental water treatment remains an arduous challenge. To overcome such difficulties, we present a fac...

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Bibliographic Details
Published in:RSC advances 2018-01, Vol.8 (27), p.14775-14786
Main Authors: Wang, Qijun, Zhou, Shu, Song, Xiao, Wei, Feifei, Zhao, Xuezhu, Jun’e Qu, Wang, Hairen
Format: Article
Language:English
Subjects:
Activated carbon
Anodizing
Catalysis
Catalysts
Chemistry
Composite materials
Degradation
Dyes
Electrocatalysts
Oxidation
Perovskites
Pollutants
Sol-gel processes
Sustainable development
Wastewater treatment
Water treatment
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Summary:Perovskites, which have excellent electrocatalytic properties, are promising for use in heterogeneous catalysis. However, the design and development of green and effective electrocatalysts for environmental water treatment remains an arduous challenge. To overcome such difficulties, we present a facile sol–gel method for the design and preparation of a series of perovskite-activated carbon (AC) composites (La1−xNdxFeO3@AC) for the degradation of methyl orange (MO) by heterogeneous electro-Fenton reactions. Furthermore, the as-made La0.6Nd0.4FeO3@AC composite anode had the strongest oxidation ability and stability, with MO wastewater and COD removal rates reaching 99.81% and 96.66% within 10 minutes, respectively. As far as we know, the La1−xNdxFeO3@AC composites can be regarded as a series of the most effective catalysts for the degradation of MO to date.
ISSN:2046-2069
DOI:10.1039/c8ra00244d