Research Article, J Nanomater Mol Nanotechnol Vol: 3 Issue: 4
Hierarchical ZnO Nanostructures Derived from Zn-Al Layered Double Hydroxides and their Photocatalytic Activity
| Gangqiang Wan1, Yaojun Zhang1, Dongxiang Li1*, Xin Qian1, Jie Xu1 and Wanguo Hou2* | |
| 1State Key Laboratory Base of Eco-chemical Engineering, Lab of Colloids and Functional Nanostructures, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, China | |
| 2Key Laboratory of Colloid and Interface Chemistry (Ministry of Education),Shandong University, Jinan 250100, China | |
| Corresponding authors : Prof. Dr. Dongxiang Li College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Zhengzhou Road No. 53, Qingdao 266042, China Tel: +86 532 84023654 E-mail: lidx@iccas.ac.cn Prof. Dr. Wanguo Hou Key Laboratory of Colloid and Interface Chemistry (Ministry of Education), Shandong University, Jinan 250100, China E-mail: wghou@sdu.edu.cn |
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| Received: August 14, 2014 Accepted: October 13, 2014 Published: October 18, 2014 | |
| Citation: Wan G, Zhang Y, Li D, Qian X, Xu J, et al. (2014) Hierarchical ZnO Nanostructures Derived from Zn-Al Layered Double Hydroxides and their Photocatalytic Activity. J Nanomater Mol Nanotechnol 3:4. doi:10.4172/2324-8777.1000152 |
Abstract
Hierarchical ZnO Nanostructures Derived from Zn-Al Layered Double Hydroxides and their Photocatalytic Activity
In this work, Zn-Al layered double hydroxide (LDH) nanocrystals were used as a single precursor to fabricate ZnO/Zn-Al LDH nanocomposite based on the dissolution of aluminium hydroxide in NaOH. The newly formed ZnO nanorods vertically align on two sides of thinned LDH nanosheet to form “sandwich-like” nanostructure. The following calcination of these ZnO/Zn-Al LDH nanostructures at moderate temperature provided ZnO-Al2O3 mixed metal oxide nanocomposites. Both of ZnO/Zn-Al LDH and ZnO-Al2O3 samples were investigated as photocatalysts and showed selective activity for the photolysis of different dyes under low-Watt UV irradiation. Such photocatalytic mixed metal hydroxide/oxide nanocomposites should facilitate the decontamination of industrial wastewater and be helpful to environmental remediation.
