期刊
SCIENCE OF THE TOTAL ENVIRONMENT
卷 607, 期 -, 页码 1391-1399出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.scitotenv.2017.07.020
关键词
Nitrogen-functionalized; Wheat straw; Atrazine; Adsorption; Carbon sheets
资金
- National Nature Science Fund for Distinguished Young Scholars [41625002]
- MOA Modern Agricultural Talents Support Project
- National Nature Science Fund for Young Scholars [31600413]
- China Postdoctoral Science Foundation [2017T100222, 2015M581417]
- Heilongjiang Postdoctoral Fund [LB-TZ1603, LBH-Z15012]
- Young Talents Project of Northeast Agricultural University [16QC34]
N-doped porous carbon sheets (NPCS) resulted from wheat straws are fabricated through using molten salts via the carbonization-functionalization progress, which show unique hierarchical structure, large pore volume and high surface area with affluent micropores. Results indicate that there exist many hierarchical pores consisting of the single carbon sheet with ultrathin nature, owing to the template role of molten salt mixtures at high temperature. Such superior structure can bring about desired performance of adsorption capacity of 82.8 mg/g and quick adsorption rate of 1.43 L/(g h) with an initial concentration of 35 mg/L at 25 degrees C. Langmuir and Freundlich models are adopted to interpret the adsorption behavior of atrazine and modified Freundlich and intraparticle diffusion (IPD) models are employed to characterize the dynamics of adsorption. Furthermore, nitrogen-functionalization biochars via molten salt synthesis should be further developed as a one-pot methodology to produce N-doped carbons, opening up a feasible approach for resource utilization of crop straws and other biomass wastes. (C) 2017 Elsevier B.V. All rights reserved.
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