Issue 62, 2014

Programmed synthesis of Pd@hTiO2 hollow core–shell nanospheres as an efficient and reusable catalyst for the reduction of p-nitrophenol

Abstract

Here, we report a facile synthesis approach to obtain a Pd@hTiO2 hollow mesoporous nanocomposite composed of tiny Pd nanoparticles cores encapsulated within hollow TiO2 mesoporous shells. The core–shell strategy efficiently prevents the aggregation of Pd NPs (Pd nanoparticles) in the high temperature calcination process and the leaching of Pd NPs for the catalytic reaction in a liquid phase. The catalyst was characterized by transmission electron microscopy (TEM), X-ray powder diffraction (XRD), X-ray photoelectron spectroscopy (XPS), N2 adsorption/desorption, elemental analysis and inductively coupled plasma atomic emission spectrometry (ICP-AES). The synthesized catalyst exhibited high catalytic activity in the reduction of p-nitrophenol with NaBH4 aqueous solution at room temperature. Furthermore, Pd@hTiO2 had an excellent recyclability, evidenced by being extensively reused for eight times without any substantial loss of activity.

Graphical abstract: Programmed synthesis of Pd@hTiO2 hollow core–shell nanospheres as an efficient and reusable catalyst for the reduction of p-nitrophenol

Article information

Article type
Paper
Submitted
14 May 2014
Accepted
16 Jul 2014
First published
16 Jul 2014

RSC Adv., 2014,4, 33055-33061

Programmed synthesis of Pd@hTiO2 hollow core–shell nanospheres as an efficient and reusable catalyst for the reduction of p-nitrophenol

X. Zhou, X. Zhu, J. Huang, X. Li, P. Fu, L. Jiao, H. Huo and R. Li, RSC Adv., 2014, 4, 33055 DOI: 10.1039/C4RA04524F

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements