Integration of BiOI nanosheets into bubble-propelled micromotors for efficient water purification

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F21%3A43922171" target="_blank" >RIV/60461373:22310/21:43922171 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2452262721000738" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452262721000738</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.flatc.2021.100294" target="_blank" >10.1016/j.flatc.2021.100294</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Integration of BiOI nanosheets into bubble-propelled micromotors for efficient water purification

Popis výsledku v původním jazyce

Integration of 2D layered materials into micromotors is of great interest for scientists since 2D materials can endow micromotors with new characteristics or enhance their intrinsic properties. In this work, we develop the BiOI-based self-propelled micromotors (i.e., rGO/ZnO/BiOI/Co-Pi/Pt micromotors) with tubular and arc geometric shapes via template-assisted electrochemical deposition method. BiOI, constructed by nanosheets, is a visible-light-excited photocatalyst. The elaborately designed heterostructure is able to promote the charge separation and transport capacity of BiOI. Each micromotor can not only exhibit vigorous stirring-like movement for self-propulsion but also lead to enhanced photocatalytic dynamics for dye degradation. Using Rhodamine 6G as the dye pollutant model, BiOI-based micromotors can degrade 94% of dye molecules within 30 min under visible light illumination while their degradation efficiency is only 5.2% when in dark. The dye degradation mechanism is mainly based on the generation of reactive oxygen species during the photocatalysis process. The synergistic effect among i) &quot;on-the-fly&quot; chemistry, ii) the collective behavior of micromotors and iii) the visible-light-excited BiOI photocatalyst with synthetic nanoflake morphology and well-designed heterojunction make an efficient and active photocatalytic platform for water purification.

Název v anglickém jazyce

Integration of BiOI nanosheets into bubble-propelled micromotors for efficient water purification

Popis výsledku anglicky

Integration of 2D layered materials into micromotors is of great interest for scientists since 2D materials can endow micromotors with new characteristics or enhance their intrinsic properties. In this work, we develop the BiOI-based self-propelled micromotors (i.e., rGO/ZnO/BiOI/Co-Pi/Pt micromotors) with tubular and arc geometric shapes via template-assisted electrochemical deposition method. BiOI, constructed by nanosheets, is a visible-light-excited photocatalyst. The elaborately designed heterostructure is able to promote the charge separation and transport capacity of BiOI. Each micromotor can not only exhibit vigorous stirring-like movement for self-propulsion but also lead to enhanced photocatalytic dynamics for dye degradation. Using Rhodamine 6G as the dye pollutant model, BiOI-based micromotors can degrade 94% of dye molecules within 30 min under visible light illumination while their degradation efficiency is only 5.2% when in dark. The dye degradation mechanism is mainly based on the generation of reactive oxygen species during the photocatalysis process. The synergistic effect among i) &quot;on-the-fly&quot; chemistry, ii) the collective behavior of micromotors and iii) the visible-light-excited BiOI photocatalyst with synthetic nanoflake morphology and well-designed heterojunction make an efficient and active photocatalytic platform for water purification.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

<a href="/cs/project/GA20-20201S" target="_blank" >GA20-20201S: Mikromotory na bázi 2D materiálů pro biomedicinální a environmentální aplikace</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

FlatChem

ISSN

2452-2627

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

November 2021

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

—

Kód UT WoS článku

000710101100003

EID výsledku v databázi Scopus

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