Issue 34, 2018, Issue in Progress

The three-dimensional ordered macroporous structure of the Pt/TiO2–ZrO2 composite enhanced its photocatalytic performance for the photodegradation and photolysis of water

Abstract

Using polystyrene (PS) spheres as a template, three-dimensional ordered macroporous Pt/TiO2–ZrO2 (3DOM Pt/TiO2–ZrO2) composites were prepared by vacuum impregnation combined with photoreduction. The crystal structure, composition, morphology, optical absorption, and surface physicochemical properties of the as-synthetized samples were characterized by X-ray diffraction (XRD), UV-visible diffuse reflectance spectroscopy (UV-vis/DRS), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and N2 adsorption–desorption analyses. The results showed that the 3DOM Pt/TiO2–ZrO2 composites were mainly composed of anatase TiO2 and tetragonal ZrO2 crystal phases, in which Pt mainly existed as a single species. In addition, the as-synthesized composites had open, three-dimensionally ordered macroporous structures that could enhance their multi-mode photocatalytic degradation performance under UV, visible light, simulated solar light, and microwave-assisted irradiation. Moreover, the 3DOM Pt/TiO2–ZrO2 composites exhibited the best photocatalytic water splitting performance as compared to other systems.

Graphical abstract: The three-dimensional ordered macroporous structure of the Pt/TiO2–ZrO2 composite enhanced its photocatalytic performance for the photodegradation and photolysis of water

Article information

Article type
Paper
Submitted
01 Feb 2018
Accepted
03 May 2018
First published
23 May 2018
This article is Open Access
Creative Commons BY license

RSC Adv., 2018,8, 18870-18879

The three-dimensional ordered macroporous structure of the Pt/TiO2–ZrO2 composite enhanced its photocatalytic performance for the photodegradation and photolysis of water

M. An, L. Li, Y. Tian, H. Yu and Q. Zhou, RSC Adv., 2018, 8, 18870 DOI: 10.1039/C8RA00998H

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