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Nanomaterials 2018, 8(9), 687; https://doi.org/10.3390/nano8090687

Preparation and Enhanced Photocatalytic Properties of 3D Nanoarchitectural ZnO Hollow Spheres with Porous Shells

Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, No. 967 Anning East Road, Lanzhou 730070, China
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Received: 7 August 2018 / Revised: 29 August 2018 / Accepted: 30 August 2018 / Published: 4 September 2018
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Abstract

By using ginkgo leaves (GL) as template and Zn(CH3COO)2∙2H2O as Zn source, a series of ZnO samples with special morphology were prepared via a template-assisted two-steps method without adding any other additives. The degradation of the dye MB was used to evaluate the photocatalytic property of the as-prepared samples. The results showed that when a proper amount of the template was used, a 3D nanoarchitectural ZnO hollow sphere with porous sphere shell assembled by well-distributed nanoparticles was obtained and its photocatalytic activity was much higher than that of ZnO nanoparticles. The special morphology of the sample was herein considered to be very helpful for highly efficient adsorption and activation of reactant molecules by multi-times adsorption-desorption-adsorption, efficient absorption of irradiation light by repeated absorption-reflection-absorption, and efficient separation of the photogenerated e-h+ pairs. In addition, the formation of 3D structure of sample ZnO was also discussed. View Full-Text
Keywords: ZnO; Ginkgo leaves; hollow spheres with porous shells; template-assisted two-steps method; photocatalytic property ZnO; Ginkgo leaves; hollow spheres with porous shells; template-assisted two-steps method; photocatalytic property
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Li, L.; Han, L.; Han, Y.; Yang, Z.; Su, B.; Lei, Z. Preparation and Enhanced Photocatalytic Properties of 3D Nanoarchitectural ZnO Hollow Spheres with Porous Shells. Nanomaterials 2018, 8, 687.

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