Issue 27, 2017, Issue in Progress

Metal/TiO2 hierarchical nanocomposite arrays for the remarkable enhancement of photocatalytic activity

Abstract

Metal/TiO2 hierarchical nanocomposite arrays were assembled by the deposition of aggregated TiO2 nanoparticles on anodic aluminum oxide templates and the subsequent loading of metal nanoparticles by electrochemical deposition. The as-prepared samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, energy dispersive X-ray spectroscopy and ultraviolet-visible spectroscopy. The photocatalytic activities of the as-synthesized catalysts were evaluated for the degradation of organic dyes. Our experimental results demonstrated that the greatly improved photocatalytic efficiency of the metal/TiO2 hierarchical nanocomposite arrays resulted from their high surface area and symmetrical arrangement. As a prospective approach for wastewater purification, our work not only enriches the synthetic methodology for TiO2, but also provides valuable knowledge about nanosized photocatalysts.

Graphical abstract: Metal/TiO2 hierarchical nanocomposite arrays for the remarkable enhancement of photocatalytic activity

Article information

Article type
Paper
Submitted
09 Jan 2017
Accepted
03 Mar 2017
First published
15 Mar 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 16535-16541

Metal/TiO2 hierarchical nanocomposite arrays for the remarkable enhancement of photocatalytic activity

K. Dong, L. Huang, C. Wang, P. Xu, Y. Zhang, C. Feng, T. Chen, Q. Wang and Y. Zhang, RSC Adv., 2017, 7, 16535 DOI: 10.1039/C7RA00312A

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