Biotemplated synthesis of nanostructured ZnO with enhanced visible light photocatalytic activity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F70883521%3A28110%2F18%3A63521498" target="_blank" >RIV/70883521:28110/18:63521498 - isvavai.cz</a>

Alternative codes found

RIV/70883521:28610/18:63521498

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Biotemplated synthesis of nanostructured ZnO with enhanced visible light photocatalytic activity

Original language description

Cotton wool was used as a biotemplate for the synthesis of nanostructured ZnO with enhanced visible light photocatalytic activity. Zn(II+) complexes were introduced into the structure of cotton fibers via evaporation of ammonia solution containing dissolved ZnO powder. Thermal decomposition of Zn(II+) impregnated biotemplate at 500 °C, 600 °C and 700 °C provides yellowish ZnO fine powder which retains the morphology of cotton wool fibers. The photocatalytic activities of both starting and biotemplated ZnO powders were evaluated from the time dependency of degradation of Methyl Violet 2B under the UV (λ~ 365 nm) and visible light (λ~ 400 nm and λ~ 425 nm) irradiation. Measurements were carried out online in UV-Vis spectrometer using a homemade cuvette holder housing equipped with an LED diode The degradation rate constant for biotemplated ZnO under visible light irradiation was 8 times higher than that of the starting ZnO. The significantly enhanced photocatalytic activity of biotemplated ZnO under visible light irradiation can be attributed to the intimate contact of the ZnO crystalline phase with residual carbonaceous species

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

21001 - Nano-materials (production and properties)

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

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

Article name in the collection

NANOCON 2017 Conference Proceedings

ISBN

978-80-87294-81-9

ISSN

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e-ISSN

neuvedeno

Number of pages

6

Pages from-to

321-326

Publisher name

Tanger Ltd.

Place of publication

Ostrava

Event location

Brno

Event date

Oct 18, 2017

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000452823300053