生物炭
热解
原材料
斜线和字符
功能群
氮气
化学
废物管理
分馏
生物量(生态学)
化学工程
环境化学
有机化学
农学
生物
工程类
聚合物
作者
Lijian Leng,Siyu Xu,Renfeng Liu,Tao Yu,Ximeng Zhuo,Songqi Leng,Qin Xiong,Huajun Huang
标识
DOI:10.1016/j.biortech.2019.122286
摘要
Biochar is a carbonaceous material produced by thermal treatment, e.g., pyrolysis, of biomass in oxygen-deficient or oxygen-free environment. Nitrogen containing functional groups of biochar have a wide range of applications, such as adsorption of pollutants, catalysis, and energy storage. To date, many methods have been developed and used to strengthen the function of N-containing biochar to promote its application and commercialization. However, there is no review available specifically on the development of biochar technologies concerning nitrogen-containing functional groups. This paper aims to present a review on fractionation, analysis, formation, engineering, and application of N-functional groups of biochar. The effect of influencing factors on biochar N-functional groups, including biomass feedstock, pyrolysis parameters (e.g., temperature), and additional treatment (e.g., N-doping) were discussed in detail to reveal the formation mechanisms and performance of the N-functional groups. Future prospective investigation directions on the analysis and engineering of biochar N-functional groups were also proposed.
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