Nowadays, agricultural contamination is becoming more and more serious due to the rapid growth of agricultural industry, which discharged antibiotics, pesticides or toxic metals into farmlands. A large number of researchers have applied biochar-based functional materials to the treatment of agricultural wastewater contamination. Meanwhile, biochar has also proved to be a very promising and effective technology in water purification field due to its various beneficial properties (e.g., cost effective, high specific surface area, and surface reactive groups). The focus of this review is to highlight the fabrication methods and application of biochar-based functional materials with the removal of different agricultural contaminants, and discuss the underlying mechanisms. However, the application of biochar-based functional materials is currently under its infancy, with the main hindrance is identified as the gap between laboratory scale and field application, immaturity of engineered biochar production technologies, and lack of quality standards. In order to fill these knowledge gaps, more efforts should be made to pay for the relevant research in future studies.

如今，由于农业的快速发展，农业污染正变得越来越严重，农业向农田排放了抗生素，杀虫剂或有毒金属。大量研究人员已将基于生物炭的功能材料应用于农业废水污染的处理。同时，由于生物炭的各种有益特性（例如，具有成本效益，高比表面积和表面反应性基团），生物炭在水净化领域也被证明是非常有前途和有效的技术。这篇综述的重点是着重介绍生物炭基功能材料的制造方法和应用，以及去除不同农业污染物的方法，并讨论其潜在机理。然而，目前，基于生物炭的功能材料的应用尚处于起步阶段，主要障碍是实验室规模和现场应用之间的差距，工程化生物炭生产技术的不成熟以及缺乏质量标准。为了填补这些知识空白，应在未来的研究中付出更多的努力来支付相关的研究费用。