Journal
CARBON
Volume 49, Issue 15, Pages 5132-5141Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.06.097
Keywords
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Funding
- NSFC [50902073, 20774047]
- MOST [2009AA032304, 2011CB932602]
- NSF of Tianjin City [08JCZDJC25300]
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A feasible and scalable CO2-assisted arc discharge method was developed to directly synthesize single-walled carbon nanotubes (SWCNTs) with largely semiconducting species. Not only was electronic-type selectivity achieved on a large scale, with a semiconducting SWCNT (s-SWCNT) content of >90%, but also diameter selectivity was obtained, with a majority having diameters of >1.5 nm. The photo-catalytic water splitting performance of these SWCNTs with different ratios of s-SWCNTs to metallic single-walled carbon nanotubes (m-SWCNTs) was examined. The results show that, compared with m-SWCNTs, s-SWCNTs demonstrate a much better photocatalytic effect when used together with the common photo-catalyst TiO2. (C) 2011 Elsevier Ltd. All rights reserved.
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