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One‐step preparation of Fe 2 O 3 /reduced graphene oxide aerogel as heterogeneous Fenton‐like catalyst for enhanced photo‐degradation of organic dyes
Author(s) -
Feng Yan,
Yao Tongjie,
Yang Yang,
Zheng Furen,
Chen Peng,
Wu Jie,
Xin Baifu
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.201801840
Subject(s) - aerogel , degradation (telecommunications) , graphene , rhodamine b , materials science , chemical engineering , catalysis , oxide , adsorption , nanoparticle , reusability , hydrothermal circulation , nanotechnology , chemistry , organic chemistry , photocatalysis , metallurgy , telecommunications , software , computer science , engineering , programming language
In this paper, Fe 2 O 3 /reduced graphene oxide (rGO) aerogel with a three‐dimensional hierarchical porous structure was prepared by hydrothermal method in one‐step, where Fe 2 O 3 nanoparticles (NPs) were uniformly anchored on two sides of rGO nanosheets. In aerogel, rGO support not only dispersed Fe 2 O 3 NPs, but also increased adsorption ability, improved mass diffusion and accelerated electron transfer; namely, synergistic effect was generated by combining rGO and Fe 2 O 3 together. As expected, in photo‐Fenton degradation of rhodamine B, Fe 2 O 3 /rGO aerogel displayed higher degradation ability than referenced samples. A series of influence factors on degradation efficiencies were investigated. Based on inhibitor tests and controlled experiments, a possible degradation mechanism was proposed. Besides satisfied degradation ability, the aerogel also displayed superior stability and reusability. After 5 recycling runs, both chemical composition and degradation efficiency were well maintained.