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Facile Template In-Situ Fabrication of ZnCo2O4 Nanoparticles with Highly Photocatalytic Activities under Visible-Light Irradiation

1School of Chemical Engineering, Hanoi University of Science and Technology, 1, Dai Co Viet, Bach Khoa, Hai Ba Trung, 10000, Ha Noi, Viet Nam

2International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology, 1, Dai Co Viet, Bach Khoa, Hai Ba Trung, 10000, Ha Noi, Viet Nam

Received: 15 Nov 2018; Revised: 15 Feb 2019; Accepted: 15 Feb 2019; Available online: 30 Apr 2019; Published: 1 Aug 2019.
Editor(s): Hadi Nur
Open Access Copyright (c) 2019 by Authors, Published by BCREC Group under

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High specific surface area ZnCo2O4 nanoparticles were prepared via a sacrificial template accelerated hydrolysis by using nanoparticles of ZnO with highly polar properties as a template. The obtained ZnCo2O4 nanoparticles were characterized by the method of scanning electron microscopy (SEM), X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET) surface area measurements, Transmission electron microscopy (TEM), Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS). The obtained nanoparticles were performed as a photocatalyst for the degradation of methylene blue in aqueous solution under visible irradiation. The photocatalytic degradation rate of methylene blue onto the synthesized ZnCo2O4 was higher than that of commercial ZnO and synthesized ZnO template. 

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Keywords: Sacrificial template; ZnCo2O4; photodegradation; methylene blue; ZnO
Funding: Hanoi University of Science and Technology through the project T2017-TT-009

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