Trapping and detecting nanoplastics by MXene-derived oxide microrobots

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F22%3A43924097" target="_blank" >RIV/60461373:22310/22:43924097 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216305:26620/22:PU145161

Výsledek na webu

<a href="https://www.nature.com/articles/s41467-022-31161-2" target="_blank" >https://www.nature.com/articles/s41467-022-31161-2</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41467-022-31161-2" target="_blank" >10.1038/s41467-022-31161-2</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Trapping and detecting nanoplastics by MXene-derived oxide microrobots

Popis výsledku v původním jazyce

Nanoplastic water pollution represents an increasing concern. Here, photogravitactic MXene-derived microrobots are programmed to trap nanoplastics in the layered structure and magnetically transfer them to low-cost electrodes for further detection. Nanoplastic pollution, the final product of plastic waste fragmentation in the environment, represents an increasing concern for the scientific community due to the easier diffusion and higher hazard associated with their small sizes. Therefore, there is a pressing demand for effective strategies to quantify and remove nanoplastics in wastewater. This work presents the &quot;on-the-fly&quot; capture of nanoplastics in the three-dimensional (3D) space by multifunctional MXene-derived oxide microrobots and their further detection. A thermal annealing process is used to convert Ti3C2Tx MXene into photocatalytic multi-layered TiO2, followed by the deposition of a Pt layer and the decoration with magnetic gamma-Fe2O3 nanoparticles. The MXene-derived gamma-Fe2O3/Pt/TiO2 microrobots show negative photogravitaxis, resulting in a powerful fuel-free motion with six degrees of freedom under light irradiation. Owing to the unique combination of self-propulsion and programmable Zeta potential, the microrobots can quickly attract and trap nanoplastics on their surface, including the slits between multi-layer stacks, allowing their magnetic collection. Utilized as self-motile preconcentration platforms, they enable nanoplastics&apos; electrochemical detection using low-cost and portable electrodes. This proof-of-concept study paves the way toward the &quot;on-site&quot; screening of nanoplastics in water and its successive remediation.

Název v anglickém jazyce

Trapping and detecting nanoplastics by MXene-derived oxide microrobots

Popis výsledku anglicky

Nanoplastic water pollution represents an increasing concern. Here, photogravitactic MXene-derived microrobots are programmed to trap nanoplastics in the layered structure and magnetically transfer them to low-cost electrodes for further detection. Nanoplastic pollution, the final product of plastic waste fragmentation in the environment, represents an increasing concern for the scientific community due to the easier diffusion and higher hazard associated with their small sizes. Therefore, there is a pressing demand for effective strategies to quantify and remove nanoplastics in wastewater. This work presents the &quot;on-the-fly&quot; capture of nanoplastics in the three-dimensional (3D) space by multifunctional MXene-derived oxide microrobots and their further detection. A thermal annealing process is used to convert Ti3C2Tx MXene into photocatalytic multi-layered TiO2, followed by the deposition of a Pt layer and the decoration with magnetic gamma-Fe2O3 nanoparticles. The MXene-derived gamma-Fe2O3/Pt/TiO2 microrobots show negative photogravitaxis, resulting in a powerful fuel-free motion with six degrees of freedom under light irradiation. Owing to the unique combination of self-propulsion and programmable Zeta potential, the microrobots can quickly attract and trap nanoplastics on their surface, including the slits between multi-layer stacks, allowing their magnetic collection. Utilized as self-motile preconcentration platforms, they enable nanoplastics&apos; electrochemical detection using low-cost and portable electrodes. This proof-of-concept study paves the way toward the &quot;on-site&quot; screening of nanoplastics in water and its successive remediation.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/LM2018110" target="_blank" >LM2018110: Výzkumná infrastruktura CzechNanoLab</a><br>

Návaznosti

O - Projekt operacniho programu

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Nature Communications

ISSN

2041-1723

e-ISSN

—

Svazek periodika

13

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

14

Strana od-do

nestrankovano

Kód UT WoS článku

000814810600017

EID výsledku v databázi Scopus

2-s2.0-85132582595