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Stabilized Pony‐Sized‐CuFe 2 O 4 /Carbon Nitride Porous Composites with Boosting Fenton‐like Oxidation Activity
Author(s) -
Lu Kangchao,
Yang Fu,
Lin Wei,
Zhou Shijian,
Xi Tao,
Song Changjian,
Kong Yan
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800843
Subject(s) - catalysis , x ray photoelectron spectroscopy , materials science , porosity , chemical engineering , degradation (telecommunications) , fourier transform infrared spectroscopy , composite material , nuclear chemistry , chemistry , organic chemistry , telecommunications , computer science , engineering
In this study, pony‐sized Copper ferrite (CuFe 2 O 4 ) nanoparticles were directly obtained and synchronously stabilized on nanoporous carbon nitride (MCN) named as CuFe 2 O 4 ‐MCN, which emerges interestingly as a magnetically‐recycling heterogeneous Fenton‐like catalyst. The Fourier Transform Infrared, X‐ray diffraction, N 2 desorption, X‐ray photoelectron spectroscopy and transmission electron microscopy were seriatim used to characterize these synthesized functional catalysts. These present results demonstrated that CuFe 2 O 4 ‐MCN afford appreciable physical textural characteristics including well‐defined porous structure, advisable surface area and pore volume. The interaction between CuFe 2 O 4 and MCN and its induced improved dispersion of CuFe 2 O 4 NPs on MCN could be confirmed through XPS, FT‐IR, and TEM evidences. Impressively, the resulted CuFe 2 O 4 ‐MCN composites exhibited a three times’ catalytic activity (k obs , 0.076 min −1 ) than that (k obs , 0.026 min −1 ) of mechanical mixture CuFe 2 O 4 ‐MCN(M) in 4‐chlorophenol(CP) degradation. CuFe 2 O 4 ‐MCN porous composites was further evaluated in catalysis according to various controlled parameters, including catalyst loading, H 2 O 2 concentration, catalyst dosage and pH of 4‐CP degradation. At last, the catalytic stability of CuFe 2 O 4 ‐MCN composites was investigated via magnetic recycling and reusage in next catalytic test. After three successive experimental runs, the porous structure and catalytic activity of CuFe 2 O 4 ‐MCN catalysts remained constant.