Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, People's Republic of China.
ACS Appl Mater Interfaces. 2013 Sep 25;5(18):9212-6. doi: 10.1021/am402864r. Epub 2013 Sep 16.
Pesticide sprayed onto plant leaves tends to discharge into the environment through rainwater washing, leaching, and volatilization, resulting in severe pollution to soil, water, and air. Here, to control pesticide loss, we developed a loss-control pesticide (LCP) by adding straw ash-based biochar and biosilica (BCS) to traditional pesticide. BCS possesses a porous micro/nano structure and thus can adsorb a large amount of pesticide molecules to form pesticide-BCS complexes that tend to be retained by the rough surface of plant leaves, displaying a high adhesion performance on the leaves; therefore, the pesticide loss decreases, sufficient pesticide for the plant is supplied, and the pollution risk of the pesticide can be substantially lowered.
喷洒在植物叶片上的农药往往会通过雨水冲刷、淋溶和挥发而排放到环境中，从而对土壤、水和空气造成严重污染。在这里，为了控制农药损失，我们通过在传统农药中添加秸秆灰基生物炭和生物硅（BCS）来开发一种损失控制农药（LCP）。BCS 具有多孔的微/纳结构，因此可以吸附大量的农药分子，形成农药-BCS 复合物，这些复合物往往会被植物叶片的粗糙表面保留，在叶片上表现出很高的附着力；因此，农药损失减少，植物得到了充足的农药供应，农药的污染风险也大大降低。
