Photocatalysis dramatically influences motion of magnetic microrobots: Application to removal of microplastics and dyes

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F23%3A43927640" target="_blank" >RIV/60461373:22310/23:43927640 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27240/23:10253017 RIV/60461373:22350/23:43927640 RIV/60461373:22810/23:43927640

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0021979723006021" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0021979723006021</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.jcis.2023.04.019" target="_blank" >10.1016/j.jcis.2023.04.019</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Photocatalysis dramatically influences motion of magnetic microrobots: Application to removal of microplastics and dyes

Popis výsledku v původním jazyce

Micromachines gain momentum in the applications for environmental remediation. Magnetic components have been used to functionalize light-responsive micromachines to achieve efficient magnetic microrobots with photodegradation activity for decomposition of environmental pollutants. However, the influence of photocatalyst itself on the trajectory of micromotors in conjunction with magnetic motion was never considered. In this work, light-powered catalysis and transversal rotating magnetic field have been independently and simultaneously applied over Fe3O4@BiVO4 microrobots to investigate the dynamics of their hybrid motion. Light exposure of microrobots results in the production of reactive oxygen species (ROS) which power the microrobots, in addition to magnetic powered motion, and have a strong influence on the magnetic trajectories, resulting in an unexpected alteration of the direction of the motion of the microrobots. We have subsequently applied such magnetic/light powered micromachines for removal of microplastics in cigarette filter residues, one of the major contributors to the microplastic pollution, and dyes via photocatalysis. Such dual orthogonal propulsion modes act independently on the motion of the micromachines; and they also bring additional functionality as photodegradation agents. Hence, the dual magnetic/photocatalytic microrobots shall find a variety of catalytic applications in different fields.

Název v anglickém jazyce

Photocatalysis dramatically influences motion of magnetic microrobots: Application to removal of microplastics and dyes

Popis výsledku anglicky

Micromachines gain momentum in the applications for environmental remediation. Magnetic components have been used to functionalize light-responsive micromachines to achieve efficient magnetic microrobots with photodegradation activity for decomposition of environmental pollutants. However, the influence of photocatalyst itself on the trajectory of micromotors in conjunction with magnetic motion was never considered. In this work, light-powered catalysis and transversal rotating magnetic field have been independently and simultaneously applied over Fe3O4@BiVO4 microrobots to investigate the dynamics of their hybrid motion. Light exposure of microrobots results in the production of reactive oxygen species (ROS) which power the microrobots, in addition to magnetic powered motion, and have a strong influence on the magnetic trajectories, resulting in an unexpected alteration of the direction of the motion of the microrobots. We have subsequently applied such magnetic/light powered micromachines for removal of microplastics in cigarette filter residues, one of the major contributors to the microplastic pollution, and dyes via photocatalysis. Such dual orthogonal propulsion modes act independently on the motion of the micromachines; and they also bring additional functionality as photodegradation agents. Hence, the dual magnetic/photocatalytic microrobots shall find a variety of catalytic applications in different fields.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/NU21-08-00407" target="_blank" >NU21-08-00407: Funkční nanoroboti pro navigovanou kombinovanou nádorovou terapii</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

JOURNAL OF COLLOID AND INTERFACE SCIENCE

ISSN

0021-9797

e-ISSN

1095-7103

Svazek periodika

643

Číslo periodika v rámci svazku

Aug 2023

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

8

Strana od-do

447-454

Kód UT WoS článku

000985274000001

EID výsledku v databázi Scopus

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