Abstract
Millimeter-long few-walled carbon nanotube (FWNT) forests were grown by a water-assisted chemical vapor deposition method. In only 10 min, the forests grew to over 1.2 mm in height, with a growth yield around 2.76±0.30 mg/cm2. Transmission electron microscopy observation and Raman analysis showed high crystallinity of the nanotubes. A carbon purity better than 98.8 wt% was further determined by thermogravimetric analysis measurement. The FWNT forests were evaluated as an adsorbent for oil sorption and exhibited reasonable oil sorption capacity of 35 g/g. It is inferred that the oil sorption for CNT forests does not depend on their surface area.
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Acknowledgement
We gratefully acknowledge support from NSFC (50973063, 50901086, and 51072118), the 973 Program (2010CB234609), the Shanghai Rising Star Program (10QA1405000), the Shanghai Shuguang Project (09SG46), the Science Foundation for the Excellent Youth Scholars of Shanghai Municipal Education Commission (slg10032), the Qianjiang Project of Zhejiang Province (2010R10047), the Shanghai Pujiang Program (11PJ1407200), and SRF for ROCS, SEM.
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Zhao, B., Zhang, L., Liang, Y. et al. Efficient growth of millimeter-long few-walled carbon nanotube forests and their oil sorption. Appl. Phys. A 108, 351–355 (2012). https://doi.org/10.1007/s00339-012-6884-8
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DOI: https://doi.org/10.1007/s00339-012-6884-8