Photocatalytic Composite Nanomaterial and Engineering Solution for Inactivation of Airborne Bacteria View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2020-06-06

AUTHORS

Igor Danilenko, Oksana Gorban, Paulo Miguel da Costa Zaragoza de Oliveira Pedro, Joao Viegas, Olesya Shapovalova, Leonid Akhkozov, Tetyana Konstantinova, Svitlana Lyubchyk

ABSTRACT

In this study we propose a new composite material with an enhanced bactericidal action that utilises the complex interactions with bacteria: mechanical interactions of the bacteria with ZnO tetrapod spikes, a photocatalytic process on ZnO nanoparticles, and disinfection by Ag nanoparticles. ZnO and Ag nanoparticles were immobilised on a single-crystalline ZnO tetrapod by the ultrasonic mixing method. The XRD, TEM, SEM and EDS analyses showed the tetrapod-like crystals covered by ZnO and Ag nanoparticles. This complex photocatalytic material, deposited on a grid support, was tested in the UV purifier air system in the AR Diagnostic company. The active microbial monitoring of the indoor air showed a decrease in the concentration of bacteria in the air of the meeting room, with the door open, at 90% for a duration of 30–40 min. A simple variant of the design of an air purifier system, which can be mounted in different types of air channels and compartments, is proposed. More... »

PAGES

772-779

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11244-020-01291-2

DOI

http://dx.doi.org/10.1007/s11244-020-01291-2

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1128276837


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