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From Zn-Al layered double hydroxide to ZnO nanostructure:Gradually etching by sodium hydroxide |
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| Authors: | Gang Qiang Wana Dong Xiang Lia Chun Fang Lia Jie Xua Wan Guo Houb a State |
| Affiliation: | State 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 ; Key Laboratory of Colloid and Interface Chemistry of Ministry of Education, Shandong University, Jinan 250100, China |
| Abstract: | Zn-Al layered double hydroxide (LDH) was used as precursor to produce ZnO nanostructures through dissolution of aluminum hydroxide in caustic soda. The Zn-Al LDH could transform into different nanostructures of ZnO on LDH nanosheets and even pure ZnO nanorods under various NaOH concentration. The formed ZnO nanorods vertically aligned on both LDH sides. UV-vis diverse reflectance spectra show that the obtained ZnO nanorods have a band gap of approximately 3.05 eV. Such ZnO/LDH nanostructures might be used as photocatalyst in the organic pollutant decomposition. |
| Keywords: | Layered double hydroxide (LDH) ZnO Nanostructure |
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