期刊
JOURNAL OF ENVIRONMENTAL SCIENCES
卷 30, 期 -, 页码 65-73出版社
SCIENCE PRESS
DOI: 10.1016/j.jes.2014.10.015
关键词
Volatile organic compounds; Adsorption; Ordered mesoporous carbon; Isosteric heat of adsorption; Knudsen diffusion
资金
- State Key program of National Natural Science Foundation [21337003]
- Strategic Priority Research Program [XDB05050200]
- National High Technology Research and Development Program of China [2012AA063101]
- Special Environmental Protection Foundation for Public Welfare Project [201309073]
- Team Interaction and Cooperation of the Science and Technology Program of the Chinese Academy of Sciences
Ordered mesoporous carbon (OMC) with high specific surface area and large pore volume was synthesized and tested for use as an adsorbent for volatile organic compound (VOC) disposal. Benzene, cyclohexane and hexane were selected as typical adsorbates due to their different molecular sizes and extensive utilization in industrial processes. In spite of their structural differences, high adsorption amounts were achieved for all three adsorbates, as the pore size of OMC is large enough for the access of these VOCs. In addition, the unusual bimodal-like pore size distribution gives the adsorbates a higher diffusion rate compared with conventional adsorbents such as activated carbon and carbon molecular sieve. Kinetic analysis suggests that the adsorption barriers mainly originated from the difficulty of VOC vapor molecules entering the pore channels of adsorbents. Therefore, its superior adsorption ability toward VOCs, together with a high diffusion rate, makes the ordered mesoporous carbon a promising potential adsorbent for VOC disposal. (C) 2015 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据