title: Micro-nanopores fabricated by high-energy electron beam irradiation: suitable structure for controlling pesticide loss.
abstract: Pesticide sprayed onto crop leaves tends to be washed off by rainwater and discharge into the environment through leaching and runoff, resulting in severe pollution to both soil and water. Here, to control pesticide loss, we developed a loss-control pesticide (LCP) by adding modified natural nanoclay (diatomite) through high-energy electron beam (HEEB) to traditional pesticide. After HEEB treatment, the originally clogged pores in diatomite opened, resulting in plenty of micro-nanopores in diatomite, which are beneficial for the pesticide molecules to access and be adsorbed. This pesticide-diatomite complex tended to be retained by the rough surface of crop leaves, displaying a high adhesion performance onto the leaves, so that the pesticide loss reduced, sufficient pesticide for crops was supplied, and the pollution risk of the pesticide could 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: Yubin
authors.initials: Y
authors.lastname: Xiang
authors.forename: Ning
authors.initials: N
authors.lastname: Wang
authors.forename: Jimei
authors.initials: J
authors.lastname: Song
authors.forename: Dongqing
authors.initials: D
authors.lastname: Cai
authors.forename: Zhengyan
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000268:Adhesiveness; D000327:Adsorption; D010367:Arachis / Q000737:chemistry / Q000648:ultrastructure; D002681:China; D004390:Chlorpyrifos / Q000032:analysis / Q000737:chemistry; D018556:Crops, Agricultural / Q000737:chemistry* / Q000648:ultrastructure; D007692:Diatomaceous Earth / Q000737:chemistry / Q000528:radiation effects*; D004583:Electrons; D004655:Emulsions; D004787:Environmental Pollution / Q000517:prevention & control*; D005514:Food Irradiation; D007306:Insecticides / Q000737:chemistry; D058608:Nanopores / Q000648:ultrastructure; D010575:Pesticides / Q000032:analysis / Q000737:chemistry*; D018515:Plant Leaves / Q000737:chemistry* / Q000648:ultrastructure; D013499:Surface Properties
chemical_list: D004655:Emulsions; D007306:Insecticides; D010575:Pesticides; D007692:Diatomaceous Earth; C033787:diatomite; D004390:Chlorpyrifos