期刊
JOURNAL OF HAZARDOUS MATERIALS
卷 408, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.jhazmat.2020.124956
关键词
Lignocellulose; Corn straw; Separation; Porous carbon; Adsorption
资金
- Technological innovation platform of straw comprehensive utilization in Jilin province [(2014) C-1]
- Education Department of Jilin Province [JJKH20190906KJ]
- Department of Science and Technology of Jilin Province [20190303057SF]
The disassembly of lignocellulosic biomass into cellulose, hemicellulose, and lignin was found to be an effective strategy for preparing various porous carbon materials with enhanced performances, as demonstrated by the higher adsorption capacities of the designed materials compared to most adsorbents and even graphite oxide.
Lignocellulose is the primary component of many biomasses, including corn straw. Herein, lignocellulose in corn straw was disassembled into the individual polymers, cellulose, hemicellulose, and lignin via a mild and facile method. Subsequently, three porous carbon materials were prepared by carbonization and chemical activation of cellulose (PCCC), hemicellulose (PCHC), and lignin (PCLC). The three materials showed higher specific surface areas (2565.7, 2996.1, and 2590.3 m(2) g(-1)) and higher porosities (1.4261, 1.5876, and 1.2406 cm(3) g(-1)) than that of PCCS, a porous carbon material derived from raw corn straw (1993 m(2) g(-1) and 1.19 cm(3) g(-1)). Of note, PCCC and PCHC exhibited higher adsorption (1025.5 and 950.1 mgg(1)) of brilliant green (BG), than PCCS (876.7 mg g(1)). Besides, the BG adsorption capacities of the designed materials were higher than that of most adsorbents, and 2-2.5 times higher than that of graphite oxide (416.7 mg g(1)). These study results indicate that the disassembly of lignocellulosic biomass into cellulose, hemicellulose, and lignin is an effective strategy for preparing various porous carbon materials with enhanced performances.
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