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Highly Ordered Mesoporous Fe 3 O 4 @Carbon Embedded Composite: High Catalytic Activity, Wide pH Range and Stability for Heterogeneous Electro‐Fenton
Author(s) -
Wang Yanbin,
Zhao Hongying,
Zhao Guohua
Publication year - 2016
Publication title -
electroanalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.574
H-Index - 128
eISSN - 1521-4109
pISSN - 1040-0397
DOI - 10.1002/elan.201500488
Subject(s) - catalysis , composite number , aerogel , cathode , mesoporous material , dimethyl phthalate , chemical engineering , materials science , degradation (telecommunications) , carbon fibers , nanoparticle , inorganic chemistry , chemistry , nanotechnology , composite material , organic chemistry , phthalate , telecommunications , computer science , engineering
Highly ordered mesoporous Fe 3 O 4 @carbon embedded composite was prepared and grafted onto monolithic carbon aerogel to form a composite cathode (Fe 3 O 4 @OMC/CA). The Fe 3 O 4 @OMC/CA was used as heterogeneous electro‐Fenton cathode for the degradation of dimethyl phthalate (DMP). 95 % removal and 65 % mineralization of DMP was achieved within 120 min. Highly dispersed Fe 3 O 4 nanoparticles increased the number of catalytic active sites, and the OMC layer provided accessible pathway to the catalytic active sites and reduced the resistance of mass transport. The main oxidants were ⋅OH and the surface‐controlled heterogeneous catalysis was the critical step. The composite cathode remained electrocatalytic activity after five consecutive runs.