Format

Send to

Choose Destination
See comment in PubMed Commons below
J Colloid Interface Sci. 2009 Feb 1;330(1):60-6. doi: 10.1016/j.jcis.2008.10.022. Epub 2008 Oct 17.

Nitrogen modified carbide-derived carbons as adsorbents of hydrogen sulfide.

Author information

1
Department of Chemistry, The City College of New York, 160 Convent Ave, New York, NY 100031, USA.

Abstract

Carbide-derived carbons produced from titanium carbide at temperatures from 600 degrees C to 1000 degrees C and exhibiting different porosities were treated with urea in order to introduce nitrogen containing species to their surface. Adsorption of hydrogen sulfide in the dynamic conditions in the presence of moisture was studied on initial and modified samples. The samples, before and after exposure to hydrogen sulfide, were characterized using adsorption of nitrogen, potentiometric titration, elemental analysis, and thermal analysis. The results showed that the introduction of nitrogen significantly enhances the performance of carbons in the process of hydrogen sulfide removal. The amount adsorbed and the degree of oxidation depended on the porosity. On the samples with very small pores, the adsorption was limited, probably owing to the sterical hindrances. With an increase in the size and volume of micropores, in which water and hydrogen sulfide can be accommodated, the efficiency of H(2)S removal by CDC increased.

PMID:
18990401
DOI:
10.1016/j.jcis.2008.10.022

LinkOut - more resources

Full Text Sources

Other Literature Sources

PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Support Center