期刊
CHEMICAL ENGINEERING JOURNAL
卷 192, 期 -, 页码 8-12出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2012.03.071
关键词
Hypercrosslinked resin; Micro-mesopore; Adsorption; VOCs
资金
- National Natural Science Foundation of China [51078180]
- Program for New Century Excellent Talents in University [NCET-11-0230]
- Qing Lan Project of Jiangsu Province
- Fundamental Research Funds for the Central Universities [1116021105]
- Program for Changjiang Scholars innovative Research Team in the University
The novel hypercrosslinked polymeric adsorbents with well-developed microporous and mesoporous structures were synthesized through suspension polymerization and post-crosslinking process. Characterization of the samples was determined by N-2 adsorption-desorption isotherms. SEM images, and fractal dimensions. The results show that the synthesized samples can possess a high BET surface area (similar to 1300 m(2)/g) with large micropore and mesopore volumes (0.28 mL/g and 1.25 mL/g, respectively). The adsorption/desorption behavior of n-hexane on the newly synthesized adsorbents was evaluated and compared with commercial hypercrosslinked polymeric adsorbent (NDA-150). At low relative pressure (p/p(0) = 0.04), the newly synthesized adsorbents exhibited similar adsorption capacities to NDA-150, however, they had higher adsorption capacities than NDA-150 at high relative pressure (p/p(0) = 0.8). Moreover, n-hexane can be desorbed more efficiently from the newly synthesized adsorbents than NDA-150. (C) 2012 Elsevier B.V. All rights reserved.
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