Hollow Fe3O4-Prussian Blue Nanocomposites for Phenol Removal Via Fenton-like Reaction
LI Xiaonan1, LI Jinghua1,2, SHI Weilu1, YANG Xianyuan1, HU Yan2, CAI Kaiyong2
1 School of Medical Technology and Engineering, Henan University of Science and Technology, Luoyang 471000, China 2 Bioengineering College of Chongqing University, Chongqing 400044, China
Abstract: In this study, magnetic hollow iron oxide (Fe3O4) nanoparticles were prepared and coated with Prussian blue nanoshell (Fe3O4-PB) to degrade phenolic pollutants widely present in water by Fenton-like reaction of Fe ion system (Fe2+, Fe3+). Firstly, the physicochemical and nano-enzyme properties of the obtained nanocomposites were characterized, and the Fenton effect was studied in the presence of H2O2. Then, the degradation and removal of phenol and its recycling performance were further investigated. The results showed that Fe3O4-PB could cause color reaction of 3, 3′, 5, 5′-tetramethylbenzidine (TMB) in the presence of H2O2, which indicated that it had effective peroxidase mimics. In addition, compared with natural horseradish peroxidas (HRP), Fe3O4-PB exhibited more stable and efficient peroxidase mimic enzyme perfor-mance within a wider range of pH and temperatures. Meanwhile, Fe3O4-PB nanoparticles could be easily separated and recycled from the reaction system with the assistance external magnet since Fe3O4 core had strong magnetic response performance. The removal efficiency of the Fe3O4-PB was still above 60% after 8 cycles, showing excellent recycling performance.
李晓楠, 李景华, 杨宪园, 胡燕, 蔡开勇. 中空Fe3O4-PB复合纳米粒类Fenton催化降解苯酚[J]. 材料导报, 2020, 34(13): 13017-13021.
LI Xiaonan, LI Jinghua, SHI Weilu, YANG Xianyuan, HU Yan, CAI Kaiyong. Hollow Fe3O4-Prussian Blue Nanocomposites for Phenol Removal Via Fenton-like Reaction. Materials Reports, 2020, 34(13): 13017-13021.
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2020, Vol. 34 
