期刊
CERAMICS INTERNATIONAL
卷 42, 期 1, 页码 518-526出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ceramint.2015.08.140
关键词
D. ZnO; Nanostructures; Electrospinning; Photocatalysis
资金
- National Basic Research Program of China (973 Program) [2013CB632401]
- program for Taishan Scholars
- National Natural Science Foundation of China [51202090, 51302106, 51402123, 51402124]
One-dimensional ZnO nanostructures with various morphologies including nanotubes, nanobelts, solid fibers, nanochains, and porous nanotubes were created through adjusting the parameters in single-spinneret electrospinning and calcination processes. The evolution of morphology depended strongly on the viscosity of precursor solutions and calcination process. Namely, the nanotube was fabricated via a two-step calcination process while the nanochain and solid fiber were created using a one-step calcination process. The nanotubes consisted of small ZnO nanoparticles. Furthermore, the nanobelt was fabricated when much more zinc precursor was added to increase the viscosity of the precursor solution. A possible mechanism based on Kirkendall effect and the decomposition of polyvinyl pyrrolidone was proposed to explain the formation of ZnO nanotubes and other one-dimensional structures. The photocatalytic activity of these ZnO samples for the degradation of Rhodamine B under ultraviolet light was investigated, and nanobelts showed the best degradation efficiency. Besides, the deposition of Au nanoparticle on ZnO nanobelts can further enhance the photocatalytic performance due to the formation of ohmic contact. (C) 2015 Elsevier Ltd and Techna Group S.r.l. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据