生物炭具有比表面积高、表面官能团丰富、结构稳定、低成本及原料来源于可再生生 物质等特性, 被广泛应用于环境修复领域. 然而, 现有研究多集中于生物炭的理化性质与功能, 而有关生物炭释出物的研究较少. 本工作详细分析了生物炭释出物的正负面效应, 罗列了减少 生物炭可溶性释出物的方法, 并例举了低释出生物炭的现有应用. 本工作为后续低释出生物炭 的制备、改良与应用提供了可借鉴的方法与思路.

Biochar has been widely used in environmental remediation due to its high specific surface area, rich surface functional groups, stable structure, low cost, and its derivation from regenerable biomass. However, most existing studies focus on the physicochemical properties and functions of biochar, with few examining biochar releases. This paper analyzes the positive and negative effects of biochar releases in detail, lists methods to reduce soluble releases of biochar, and presents existing applications of low-release biochar. It provides useful methods and ideas for the preparation, modification, and application of low-release biochar in the future.