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From Starch to Magnetic Porous Fe 2 O 3 @C: A Promising Peroxidase‐Mimicking Heterogeneous Biocatalyst for Degradation of Organic Dye
Author(s) -
Su Linjing,
Xiong Yuhao,
Wu Mei,
Duan Zhenhua,
Zhang Zhi,
Xie Wei,
Zhu Dongjian,
Luo Yanghe,
He Xingcun
Publication year - 2018
Publication title -
starch ‐ stärke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.62
H-Index - 82
eISSN - 1521-379X
pISSN - 0038-9056
DOI - 10.1002/star.201700221
Subject(s) - hydrogen peroxide , degradation (telecommunications) , methylene blue , catalysis , chemical engineering , materials science , carbon fibers , porosity , starch , guaiacol , chemistry , nuclear chemistry , inorganic chemistry , composite number , organic chemistry , photocatalysis , composite material , telecommunications , computer science , engineering
Researchers remain attracted to the development of more efficient and cost‐effective materials for the degradation of organic dyes in wastewater. Ultra‐small (sub‐5 nm) Fe 2 O 3 nanocrystals embedding magnetic porous carbon, referred to as Fe 2 O 3 @C, in which starch is used as a carbon source, is demonstrated, and is synthesized by a facile microwave‐enhanced high‐temperature ionothermal method within 4 min. The Fe 2 O 3 @C obtained is used as a peroxidase‐mimicking catalyst in heterogeneous Fenton‐like reactions to degrade organic dyes (i.e., methylene blue) with aid from the green oxidant, hydrogen peroxide. Because of its unique structure and high specific surface area, Fe 2 O 3 @C displays enhanced treatment properties in the degradation of methylene blue. Moreover, Fe 2 O 3 @C demonstrates stability and resistance to a broad range of pH, recyclability, and convenient separation. This promising peroxidase‐mimicking composite material may have potential applications in degradation of organic pollutants in the environmental cleaning field.