PREPARATION OF LIGNIN-BASED CARBONACEOUS ADSORBENT
The carbonaceous adsorbent was prepared by cross-linking and activation using phosphoric acid as an activation agent. The influence of activation temperature, impregnation ratio and activation time were studied. With increasing activation temperature, iodine adsorption value went down significantly. On the contrary, methylene blue adsorption value was improved. While the impregnation ratio and activation time were increased, both of them had various degrees of increase. The adsorption capacity of iodine, methylene blue of carbonaceous sorbent, which was prepared under optimum conditions of 400亷 of activation temperature, 4:1 of impregnation ratio and 2 hour of activation time, were 713mg.g, 60mg.g, respectively. It could be concluded that apertures of the sorbent which was made from cross-linked product of lignin in the experiment, were mainly microporous.
lignin adsorbent
Li Zhiping Liu Qianjun Lin Qintie Li Congjian
Faculty of Environmental Science and Engineering,Guangdong University of Technology, Guangzhou,510006, China
国际会议
广州
英文
425-427
2010-11-08（万方平台首次上网日期，不代表论文的发表时间）