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Confinement Fenton-like degradation of perfluorooctanoic acid by a three dimensional metal-free catalyst derived from waste
Zhuang, Yuan; Wang, Xuechun; Zhang, Lili; Kou, Ziwei; Shi, Baoyou
2020-10-15
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
ISSN0926-3373
Volume275Pages:1-8
AbstractA three dimensional (3D) macroscopic modified graphene-based metal-free Fenton-like catalyst (OG) was obtained from biomass wastes in the aim of degrading perfluorooctanoic acid (PFOA). Results showed that the OG could degrade 93.4 % of PFOA in 150 min with a defluorination rate of 38.3 %. Experimental and theoretical studies verified that electron density migration occurred in OG via the C-O-C bridge, promoting electron loss from the C-F bonds in PFOA with an obvious increase in the HOMO of F from 0.95 % to 15.46 %. Due to the confinement effect associated with the 3D graphene assembly, the barrier of OG (1.10 eV) was much smaller than that of the 2D graphene state (1.60 eV), resulting in an increase of in the C-O bond length and in the activity of the C atom to promote H2O2 decomposition. This study implies that 3D graphene derived from biomass waste could serve as a novel metal-free Fenton-like catalyst.
Department中国科学院饮用水科学与技术重点实验室
KeywordMetal free Perfluorooctanoic acid Fenton Graphene
Document Type期刊论文
Identifierhttp://ir.rcees.ac.cn/handle/311016/45258
Collection中国科学院饮用水科学与技术重点实验室
Recommended Citation
GB/T 7714
Zhuang, Yuan,Wang, Xuechun,Zhang, Lili,et al. Confinement Fenton-like degradation of perfluorooctanoic acid by a three dimensional metal-free catalyst derived from waste[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2020,275:1-8.
APA Zhuang, Yuan,Wang, Xuechun,Zhang, Lili,Kou, Ziwei,&Shi, Baoyou.(2020).Confinement Fenton-like degradation of perfluorooctanoic acid by a three dimensional metal-free catalyst derived from waste.APPLIED CATALYSIS B-ENVIRONMENTAL,275,1-8.
MLA Zhuang, Yuan,et al."Confinement Fenton-like degradation of perfluorooctanoic acid by a three dimensional metal-free catalyst derived from waste".APPLIED CATALYSIS B-ENVIRONMENTAL 275(2020):1-8.
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