caa a22 4500 463212614 CHVBK 20180405153146.0 cr unu---uuuuu 170326e20071101xx s 000 0 eng 10.1007/s00339-007-4167-6 doi (NATIONALLICENCE)springer-10.1007/s00339-007-4167-6 Fabrication of needle-like ZnO nanorods arrays by a low-temperature seed-layer growth approach in solution [Elektronische Daten] [Haimin Zhang, Xie Quan, Shuo Chen, Huimin Zhao] Uniform, large-scale, and well-aligned needle-like ZnO nanorods with good photoluminescence and photocatalysis properties on Zn substrates, have been successfully fabricated using a simple low-temperature seed-layer growth approach in solution (50°C). The formation of ZnO seed-layer by the anodic oxidation technique (AOT) plays an important role in the subsequent growth of highly oriented ZnO nanorods arrays. Temperature also proved to be a significant factor in the growth of ZnO nanorods and had a great effect on their optical properties. X-ray diffraction (XRD) analysis, selected-area electron diffraction (SAED) pattern and high-resolution TEM (HRTEM) indicated that the needle-like ZnO nanorods were single crystal in nature and that they had grown up preferentially along the [0001] direction. The well-aligned ZnO nanorods arrays on Zn substrates exhibited strong UV emission at around 380nm at room temperature. To investigate their potential as photocatalysts, degradation of pentachlorophenol (PCP) in aqueous solution was carried out using photocatalytic processes, with comparison to direct photolysis. After 1h, the degradation efficiencies of PCP by direct photolysis and photocatalytic processes achieved 57% and 76% under given experimental conditions, respectively. This improved degradation efficiency of PCP illustrates that ZnO nanorods arrays on Zn substrates have good photocatalytic activity. This simple low-temperature seed-layer growth approach in solution resulted in the development of an effective and low-cost fabrication process for high-quality ZnO nanorods arrays with good optical and photocatalytic properties that can be applicable in many fields such as photocatalysis, photovoltaic cells, luminescent sensors, and photoconductive sensors. Springer-Verlag, 2007 Zhang Haimin Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut Quan Xie Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut Chen Shuo Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut Zhao Huimin Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut Applied Physics A Springer-Verlag 89/3(2007-11-01), 673-679 0947-8396 89:3<673 2007 89 339 https://doi.org/10.1007/s00339-007-4167-6 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00339-007-4167-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Haimin Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut NATIONALLICENCE 700 1- Quan Xie Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut NATIONALLICENCE 700 1- Chen Shuo Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut NATIONALLICENCE 700 1- Zhao Huimin Key Laboratory of Industrial Ecology and Environmental Engineering, Ministry of Education, School of Environmental and Biological Science & Technology, Dalian University of Technology, Linggong Road 2, 116024, Dalian, P.R. China aut NATIONALLICENCE 773 0- Applied Physics A Springer-Verlag 89/3(2007-11-01), 673-679 0947-8396 89:3<673 2007 89 339 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer