文献类型：期刊文献

英文题名：A comparison of biochars from lignin, cellulose and wood as the sorbent to an aromatic pollutant

作者：Li, Jianfa[1];Li, Yimin[1];Wu, Yunlu[1];Zheng, Mengying[1]

机构：[1]Shaoxing Univ, Coll Chem & Chem Engn, Shaoxing 312000, Zhejiang, Peoples R China

年份：2014

卷号：280

起止页码：450

外文期刊名：JOURNAL OF HAZARDOUS MATERIALS

收录：SCI-EXPANDED(收录号：WOS:000344428700052)、、EI(收录号：20144300126765)、Scopus(收录号：2-s2.0-84907982679)、WOS

基金：This work was supported by the National Natural Science Foundation of China (41271475) and Research Project for Public Welfare of Shaoxing City, China (2012B70084).

语种：英文

外文关键词：Biochar; Lignin; Sorption; Nitrobenzene; Desorption

外文摘要：Biochars' performance as the sorbent to pollutants is dependent on their compositions and surface characteristics, which are then related to the feedstock used for biochar preparation. The objective of this work is to probe the feedstock's influence on biochar's sorption property through a comparative study on biochars from lignin, cellulose and wood prepared at 400 degrees C and 600 degrees C, respectively. Elemental and spectral analyses demonstrated that the wood biochar had a composition and carbonization degree close to the cellulose biochar but much different from the lignin biochar prepared at the same temperature, suggesting that lignin is not dominant to properties of plant-derived biochars. The lignin biochar showed a sorption capacity comparable to both cellulose and wood biochars as the sorbent to nitrobenzene, with a higher partition contribution to the total sorption due to the lower carbonization of lignin. In general, the lignin biochar is a good candidate of sorbent to aromatic pollutants, and is advantageous over the other two species with its efficient carbon utilization. (C) 2014 Elsevier B.V. All rights reserved.