Preparation of nitrogen-doped biochar and its environmental applications

被引：0

作者：

Ju M. ^{[1
]}

Yan L. ^{[1
]}

Jian L. ^{[1
]}

Jiang S. ^{[1
]}

Rao P. ^{[1
]}

Li G. ^{[1
]}

机构：

[1] School of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai

来源：

Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 10期

关键词：

adsorption; biochar; degradation; N-doped;

D O I：

10.16085/j.issn.1000-6613.2021-2498

中图分类号：

学科分类号：

摘要：

Biomass-derived biochar was widely used in environmental fields due to its low cost and environmental friendliness, and had a stimulative effect on achieving carbon peak and neutrality. Due to the doping of N, metal-free N-doped biochar possessed surface alkalinity and multi-adsorption sites, and the performance of pollutants removal was greatly improved. However, little attention had been paid to the green synthesis of N-doped biochar and the doping mechanism. Therefore, this paper summarized the domestic and international production of N-doped biochar and their environmental applications. The methods and N-containing functional groups were articulated. The groups included pyridinic N, pyrrolic N, and graphitic N. Their contents and types were influenced by the pyrolysis process of the N source. N doping mechanism, which was determined by the intermediates of N source decomposition, surface functional groups, and activator in the doping process, was explained. In addition, this paper discussed the environmental applications of N-doped biochar and their reaction mechanism. Based on these, we proposed the research direction of N-doped biochar to provide references for practical applications. © 2022 Chemical Industry Press. All rights reserved.

引用

页码：5588 / 5598

页数：10

共 86 条

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