期刊
MATERIALS
卷 12, 期 10, 页码 -出版社
MDPI
DOI: 10.3390/ma12101675
关键词
cork; porous structure; air activation; carbon materials; dye adsorbent
类别
资金
- 13th Five-Year National key RD projects [2017YFD0600805]
- Chinese Academy of Forestry Foundation Program [CAFYBB2018ZB001-5]
- National Key Research and Development Program of China [2017YFD0600202]
- Natural Science Foundation of Shandong Province [ZR2017QB005]
Hierarchical porous carbon materials made from cork were fabricated using a facile and green method combined with air activation, without any templates and chemical agents. The influence of air activation on the texture and other surface characteristics of the carbon materials were evaluated by various characterization techniques. Results indicate that air oxidation can effectively improve the surface area and the hierarchical porous structure of carbon materials, as well as increase the number of oxygen-containing functional groups on the carbon surface. The specific surface area and the pore volume of the carbon material activated by air at 450 degrees C (C800-M450) can reach 580 m(2)/g and 0.379 cm(3)/g, respectively. These values are considerably higher than those for the non-activated material (C800, 376 m(2)/g, 0.201 cm(3)/g). The contents of the functional groups (C-O, C=O and O-H) increased with rising activation temperature. After air activation, the adsorption capacity of the carbon materials for methylene blue (MB) and methyl orange (MO) was increased from 7.7 and 6.4 mg/g for C800 to 312.5 and 97.1 mg/g for C800-M450, respectively. The excellent dye removal of the materials suggests that the porous carbon obtained from biomass can be potentially used for wastewater treatment.
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