Lignin-quaternary Adsorbent: Synthesis, Characterization and Application for 2, 4, 6-Trinitrotoluene (TNT) Adsorption
A lignin-quatemary adsorbent was made from lignin after phenolization and then amination. As-prepared adsorbent was characterized by SEM, LR and DMA. Effects of adsorbent dose, initial pH and concentration on 2, 4, 6-Trinitrotoluene (TNT) removals from aqueous solution by adsorption of this adsorbent were comprehensively investigated. IR spectra showed that the product comprises quaternary ammonium groups in the form of ether bond. The mechanical strength of the adsorbent is enhanced by combining of PVA. It was possible to remove 66% of TNT from aqueous solution with 0.1 g of the adsorbent under certain conditions (100 mg/L and 25 ℃). The results indicated that the amount of TNT adsorbed onto the adsorbent increased with increasing initial concentration; however, it decreased with an increase in pH. The adsorption process was determined to be consistent with the Langmuir isotherm.
Lignin-quaternary adsorbent Adsorption capacity 2, 4, 6-Trinitrotoluene
Zhuo Xiurong Luo Xuegang Lin Xiaoyan Xu Changgang
School of Material Science and Engineering, Southwest University of Science and Technology, Mianyang, Sichuan, China
国际会议
10th International Symposium on Eco-Materials Processing and Design(第10届国际生态材料加工与设计研讨会)
西安
英文
117-120
2009-01-13（万方平台首次上网日期，不代表论文的发表时间）