Citation: WANG Yuan-You, ZHOU Guo-Qiang, ZHANG Long, LIU Tian-Qing. Synthesis and Photocatalytic Characterization of Porous Cu-Doped ZnO Nanorods[J]. Acta Physico-Chimica Sinica, ;2016, 32(11): 2785-2793. doi: 10.3866/PKU.WHXB201608304 shu

Synthesis and Photocatalytic Characterization of Porous Cu-Doped ZnO Nanorods

1.
Jiangsu Key Laboratory of Environmental Material and Environmental Engineering, School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, Jiangsu Province, P. R. China;
2.
Department of Chemical Engineering, Yangzhou Polytechnic Institute, Yangzhou 225127, Jiangsu Province, P. R. China

Received Date: 27 June 2016
Revised Date: 30 August 2016

Fund Project: The project was supported by the National Natural Science Foundation of China (21505118), Natural Science Foundation of Jiangsu Province, China (BK2150438), Jiangsu Key Laboratory of Environmental Material and Environmental Engineering, China (K13065), Priority Academic Program Development of Jiangsu Higher Education Institutions, Senior Visiting Scholar Program of Jiangsu Higher Vocational College, China (2015FX089), and Qing Lan Project of Jiangsu Province, China.

A two-step method was developed for the selective synthesis of porous ZnO nanorods (undoped and Cu doped):first, Zn[C₆H₄(COO)₂]·H₂O and Cu doped Zn[C₆H₄(COO)₂]·H₂O nanorods were synthesized via the hydrothermal reaction of Zn(NO₃)₂·6H₂O, NaOH, KHC₈H₄O₄, and Cu(NO₃)₂·3H₂O at 120℃ for 6 h; second, porous undoped and doped ZnO nanorods were obtained by thermal decomposition of the precursors in air at 500℃ for 2 h, respectively. The porous ZnO nanorods were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet-visible (UV-Vis) spectroscopy. The photocatalytic degradation of rhodamine B (RhB) aqueous solution shows that the porous Cu-doped ZnO nanorods have the highest photodegradation performance with visible light and acetaldehyde (CH₃CHO) gas degradation. These results are because of the special interface structures of the catalysts and fast separation of its photogenerated charge carriers. These favorable photocatalytic properties of the doped microstructures demonstrate their potential for degradation of wastewater and aldehydes.
- Semiconductor,
- Cu-doped ZnO,
- Nanorod,
- Photocatalysis
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