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Controlled Engineering Nano-sized FeOOH@ZnO Hetero-Structures on Reduced Graphene Oxide for Lithium ion Storage and Photo-Fenton Reaction

Abstract

In this work, a nano-sized goethite and zinc oxide hetero-structure (FeOOH@ZnO) dispersed on reduced graphene oxide (RGO) sheets to construct a ternary composite (FeOOH@ZnO/RGO) is first synthesized by a stepped graphene oxide (GO) deoxygenation process. Ferrous ion (Fe2+) and metal Zn were employed as reducing agents, which were transformed to corresponding FeOOH and ZnO nanoparticles to form a hetero-structure in the reaction. Particularly, the size of the nanoparticles can be controlled by limiting the growth kinetics in this work. As a result, porous RGO architecture is constructed with well-dispersed hetero-structured nanoparticles constituted by FeOOH and ZnO nano-crystals encapsulated. The FeOOH@ZnO/RGO composite exhibits unique lithium ion storage properties as anode for lithium ion batteries. And compared with the binary FeOOH/RGO and ZnO/RGO composites, the ternary FeOOH@ZnO/RGO composite shows the best battery performance as anode for lithium ion batteries and the best photo-Fenton degradation activity toward methylene blue (MB) degradation under simulated sunlight irradiation. The preparation route for FeOOH@ZnO/RGO composite is straightforward, effective and has great potential to be scaled-up.

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Article information


Submitted
04 Feb 2020
Accepted
18 Mar 2020
First published
19 Mar 2020

CrystEngComm, 2020, Accepted Manuscript
Article type
Paper

Controlled Engineering Nano-sized FeOOH@ZnO Hetero-Structures on Reduced Graphene Oxide for Lithium ion Storage and Photo-Fenton Reaction

B. Xu, X. Dai, Q. Tan, Y. Wei, G. Liu and G. Wu, CrystEngComm, 2020, Accepted Manuscript , DOI: 10.1039/D0CE00171F

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