Nitrogen containing functional groups of biochar: An overview.,Bioresource Technology

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Nitrogen containing functional groups of biochar: An overview.
Bioresource Technology ( IF 9.7 ) Pub Date : 2019-10-17 , DOI: 10.1016/j.biortech.2019.122286
Lijian Leng ₁ , Siyu Xu ₁ , Renfeng Liu ₁ , Ting Yu ₁ , Ximeng Zhuo ₁ , Songqi Leng ₁ , Qin Xiong ₁ , Huajun Huang ₂

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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.

中文翻译：

含氮生物炭官能团：概述。

生物炭是通过在缺氧或无氧的环境中对生物质进行热处理（例如热解）而产生的碳质材料。生物炭的含氮官能团具有广泛的应用，例如污染物的吸附，催化和能量存储。迄今为止，已经开发了许多方法并用于增强含氮生物炭的功能，以促进其应用和商业化。但是，关于与含氮官能团有关的生物炭技术的发展尚无专门的评论。本文旨在对生物炭的N-官能团的分离，分析，形成，工程和应用进行综述。影响因素对生物炭N官能团的影响，包括生物质原料，热解参数（例如，温度）和其他处理方法（例如N掺杂）进行了详细讨论，以揭示N官能团的形成机理和性能。还提出了有关生物炭N-官能团的分析和工程的未来前瞻性研究方向。

更新日期：2019-10-19

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