Conference Paper: Ordered mesoporous carbon as an efficient and reversible adsorbent for the adsorption of fullerenes
| Title | Ordered mesoporous carbon as an efficient and reversible adsorbent for the adsorption of fullerenes |
|---|---|
| Authors | Wang, H1 Lam, FLY1 Hu, X1 Ng, KM1 |
| Keywords | Adsorption Desorption Fullerenes C 60 And C 70 Mesoporous Carbon |
| Issue Date | 2008 |
| Citation | Aiche Annual Meeting, Conference Proceedings, 2008 [How to Cite?] |
| Abstract | An ordered mesoporous carbon, CMK-3, was synthesized using mesoporous siliceous material, SBA-15, as the template. The CMK-3 was characterized and used for the adsorption of fullerenes, C 60 and C 70. It was found that the adsorption capacity of CMK-3 is four times higher than that of activated carbon (AC), while the other two adsorbents being investigated, alumina and silica gel, have little adsorption capacity for fullerenes. A detailed study was undertaken to determine the adsorption equilibrium isotherms of C 60 and C 70 on CMK-3 for both single and binary systems. The reversibility of fullerene adsorption on CMK-3 was also studied. It was found that nearly 24 % adsorbed C 60 and 8 % adsorbed C 70 can be desorbed from CMK-3 within 10 minutes at 25 □ when a volume of 200 ml pure toluene is used to desorb 25 mg of pre-saturated adsorbent in a batch desorption process. The effects of time, volume of toluene, and temperature on the desorption of fullerenes from CMK-3 were examined. It was shown that the volume of toluene and the temperature are two important factors for fullerenes, especially for C 70, to be desorbed from CMK-3. Increasing the volume and the temperature will help C 70 to be desorbed from CMK-3. The above results indicate that CMK-3 is an efficient and reversible adsorbent for the separation of fullerenes by adsorption. |
| References | References in Scopus |
| dc.contributor.author | Wang, H |
|---|---|
| dc.contributor.author | Lam, FLY |
| dc.contributor.author | Hu, X |
| dc.contributor.author | Ng, KM |
| dc.date.accessioned | 2012-10-08T03:35:14Z |
| dc.date.available | 2012-10-08T03:35:14Z |
| dc.date.issued | 2008 |
| dc.description.abstract | An ordered mesoporous carbon, CMK-3, was synthesized using mesoporous siliceous material, SBA-15, as the template. The CMK-3 was characterized and used for the adsorption of fullerenes, C 60 and C 70. It was found that the adsorption capacity of CMK-3 is four times higher than that of activated carbon (AC), while the other two adsorbents being investigated, alumina and silica gel, have little adsorption capacity for fullerenes. A detailed study was undertaken to determine the adsorption equilibrium isotherms of C 60 and C 70 on CMK-3 for both single and binary systems. The reversibility of fullerene adsorption on CMK-3 was also studied. It was found that nearly 24 % adsorbed C 60 and 8 % adsorbed C 70 can be desorbed from CMK-3 within 10 minutes at 25 □ when a volume of 200 ml pure toluene is used to desorb 25 mg of pre-saturated adsorbent in a batch desorption process. The effects of time, volume of toluene, and temperature on the desorption of fullerenes from CMK-3 were examined. It was shown that the volume of toluene and the temperature are two important factors for fullerenes, especially for C 70, to be desorbed from CMK-3. Increasing the volume and the temperature will help C 70 to be desorbed from CMK-3. The above results indicate that CMK-3 is an efficient and reversible adsorbent for the separation of fullerenes by adsorption. |
| dc.description.nature | Link_to_subscribed_fulltext |
| dc.identifier.citation | Aiche Annual Meeting, Conference Proceedings, 2008 [How to Cite?] |
| dc.identifier.scopus | eid_2-s2.0-79952304612 |
| dc.identifier.uri | http://hdl.handle.net/10722/168868 |
| dc.language | eng |
| dc.relation.ispartof | AIChE Annual Meeting, Conference Proceedings |
| dc.relation.references | References in Scopus |
| dc.subject | Adsorption |
| dc.subject | Desorption |
| dc.subject | Fullerenes C 60 And C 70 |
| dc.subject | Mesoporous Carbon |
| dc.title | Ordered mesoporous carbon as an efficient and reversible adsorbent for the adsorption of fullerenes |
| dc.type | Conference_Paper |
Author Affiliations
- Hong Kong University of Science and Technology