title: Controlling pesticide loss by natural porous micro/nano composites: straw ash-based biochar and biosilica.
abstract: 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.
authors.affiliation: Key Laboratory of Ion Beam Bioengineering, Hefei Institutes of Physical Science, Chinese Academy of Sciences , Hefei 230031, People's Republic of China.
authors.forename: Dongqing
authors.initials: D
authors.lastname: Cai
authors.forename: Longhai
authors.initials: L
authors.lastname: Wang
authors.forename: Guilong
authors.initials: G
authors.lastname: Zhang
authors.forename: Xin
authors.initials: X
authors.lastname: Zhang
authors.forename: Zhengyan
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000327:Adsorption; D002606:Charcoal / Q000737:chemistry*; D004390:Chlorpyrifos / Q000737:chemistry; D053761:Nanocomposites / Q000737:chemistry*; D010575:Pesticides / Q000737:chemistry*; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D013696:Temperature
chemical_list: D010575:Pesticides; C540010:biochar; D002606:Charcoal; D012822:Silicon Dioxide; D004390:Chlorpyrifos