Journal
NANOSCALE RESEARCH LETTERS
Volume 6, Issue -, Pages -Publisher
SPRINGEROPEN
DOI: 10.1186/1556-276X-6-536
Keywords
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Funding
- National Nature Science Foundation of China [50730008, 50902092, 61006002]
- Shanghai Science and Technology [052nm02000, 09JC1407400]
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ZnO nanowires are a promising nanomaterial for applications in the fields of photocatalysis, nano-optoelectronics, and reinforced composite materials. However, the challenge of producing large-scale ZnO nanowires has stunted the development and practical utilization of ZnO nanowires. In this study, a modified carbothermal reduction method for preparing large-scale ZnO nanowires in less than 5 min is reported. The preparation was performed in a quartz tube furnace at atmospheric pressure without using any catalysts. A mixed gas of air and N-2 with a volume ratio of 45: 1 was used as the reactive and carrier gas. About 0.8 g ZnO nanowires was obtained using 1 g ZnO and 1 g graphite powder as source materials. The obtained nanowires exhibited a hexagonal wurtzite crystal structure with an average diameter of about 33 nm. Good photocatalytic activity of the nanowires toward the photodegradation of methylene blue dye under UV irradiation was also demonstrated.
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