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

*Vu T. Tan -  School of Chemical Engineering, Hanoi University of Science and Technology , 1, Dai Co Viet, Bach Khoa, Hai Ba Trung, 10000, Ha Noi, Viet Nam
La The Vinh -  School of Chemical Engineering, Hanoi University of Science and Technology , 1, Dai Co Viet, Bach Khoa, Hai Ba Trung, 10000, Ha Noi, Viet Nam
Tran Ngoc Khiem -  International 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
Huynh Dang Chinh -  School of Chemical Engineering, 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; Published: 1 Aug 2019; Available online: 30 Apr 2019.
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Abstract

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. Copyright © 2019 BCREC Group. All rights reserved.

 

Keywords
Sacrificial template; ZnCo2O4; photodegradation; methylene blue; ZnO

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