首页|Universal water disinfection by piezoelectret aluminium oxide-based electroporation and generation of reactive oxygen species
Universal water disinfection by piezoelectret aluminium oxide-based electroporation and generation of reactive oxygen species
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NSTL
Elsevier
Diverse water microbes in water sources pose serious challenges to conventional disinfection techniques, leading to high oxidant and energy cost and large formation of disinfection by-products. Herein, a piezoelectret aluminium oxide (PEAO) was engineered for water disinfection. The piezo-catalytic disinfection system with ultrasonication induced strong electric field intensity of 8.1 x 10(7) V/m on PEAO surface, resulting in microbial cell membrane in-situ electroporation followed by penetration of generated reactive oxygen species (ROS, hydroxyl radical, singlet oxygen and hydrogen peroxide). The proposed piezo-catalytic disinfection strategy exhibited universal water disinfection performances among different microbes, similar to 1000-fold more efficient than an equivalent amount of preformed hydrogen peroxide, thus significantly improved the oxidant utilization and disinfection efficiency and potentially decreasing the formation of disinfection by-products. This work clearly demonstrates the application and mechanism of in-situ versatile water disinfection process via piezo-catalytic of PEAO and further applications in other water treatment fields are expected.
Universal water disinfectionPiezo-catalyticElectroporationReactive oxygen speciesAluminium oxideCELL-ENVELOPEINACTIVATIONPERFORMANCEBACTERIANANOPARTICLESDEGRADATIONTEMPERATURERESISTANCENANOWIRESENSOR
NSTL
Elsevier
