JOURNAL BROWSE
Search
Advanced SearchSearch Tips
Characterization of Black Carbon Collected from Candle Light and Automobile Exhaust Pipe
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Characterization of Black Carbon Collected from Candle Light and Automobile Exhaust Pipe
Cho, Seo-Rin; Cho, Han-Gook;
  PDF(new window)
 Abstract
Black carbon contributes to global warming and melting of polar ice as well as causing respiratory diseases. However, it is also an inexpensive, easily available carbon nano material for elementary chemistry experiments. In this study, black carbon samples collected from candle light and automobile exhaust pipes have been investigated to examine their compositions and surface characteristics. The observed broad G and D bands and amorphous band in their Raman spectra as well as the high intensity of the D (defect) band reveal that black carbon is principally made of amorphous graphite. The black carbon deposits in automobile exhaust pipes are apparently more amorphous, probably due to the shorter time allowed for formation of the carbonaceous matter. An exceptionally large water contact angle () is observed on black carbon, confirming its superhydrophobicity. The surface roughness evidently plays an important role for the contact angle much larger than that of crystalline graphite (). According to the Sassie-Baxter equation, less than 1% the area actually in contact with the water drop.
 Keywords
Black carbon;Raman;Contact angle;Graphite;Hydrophobicity;
 Language
English
 Cited by
 References
1.
Bond, T. C.; et al. J. Geophys. Res.: Atmospheres 2013, 118, 1-173

2.
Heo, J.-Y.; Cho, C.-H.; Jeon, H.-S.; Cheong, B.-S.; Cho, H.-G. Spectrochim. Acta A 2011, 83, 425-431. crossref(new window)

3.
Hendra, P. J. Spectrochim. Acta A 1995, 51, 2205-2208. crossref(new window)

4.
Cho, S.-R.; Cho H.-G. J. Korean Chem. Soc. 2013, 57, 432-438. crossref(new window)

5.
Saffaripour, M.; Kholghy, M.; Zhang, Q.; Dworkin, S. B.; Thomson, M. J. P. Combust. Inst. 2013, 34, 1057-1065. crossref(new window)

6.
(a) Young, T. Philos. Trans. R. Soc. London 1805, 95, 65. crossref(new window)

7.
(b) Zielecka M. Polimery 2004, 49, 327-332.

8.
(c) Tadmor, R. Langmuir 2004, 20, 7659-7664. crossref(new window)

9.
Lim, H. S. KIC News 2012, 15, 11-22.

10.
Wang, S.; Zhang, Y.; Abidi, N.; Cabrales, L. Langmuir 2009, 25, 11078-11081. crossref(new window)

11.
Campbell, D. J.; Andrews, M. J.; Stevenson, K. J. J. Chem. Edu. 2012, 89, 1280-1287. crossref(new window)