The global usage of pesticides has increased by more than 1.5 times over the last three decades. As a consequence, waters are increasingly contaminated by pesticides and their degradation products. For example, organochlorine pesticides are considered most hazardous due to their long half-lives in the environment, up to 5–15 years, and because they bioaccumulate. This is a major health issue requiring advanced methods for water cleaning such as adsorption with activated carbon, yet actual methods are limited by the cost, poor recyclability and disposal of current adsorbents. Here, we review pesticide adsorbents made of materials. Biochars derived from plant materials show maximal adsorption capacities up to around 900 mg/g due to high carbon content in the range of 38 to 80%. Strategies for field applications and post-treatment of spent adsorbents are discussed.

在过去的三十年中，全球农药使用量增长了1.5倍以上。结果，水越来越多地被农药及其降解产物污染。例如，由于有机氯农药在环境中的最长半衰期（长达5至15年）并且具有生物蓄积性，因此被认为是最危险的。这是一个主要的健康问题，需要先进的水清洗方法，例如用活性炭吸附，但是实际方法受到成本，可循环性差和当前吸附剂处置的限制。在这里，我们回顾由材料制成的农药吸附剂。由于高碳含量在38％至80％的范围内，源自植物材料的生物炭显示出最大吸附能力，最高可达900 mg / g。