Dependence of photocatalytic activity of ZnxCd1-xS quantum dot composition
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F15%3A00456215" target="_blank" >RIV/68378271:_____/15:00456215 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1016/S1872-2067(14)60269-2" target="_blank" >http://dx.doi.org/10.1016/S1872-2067(14)60269-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/S1872-2067(14)60269-2" target="_blank" >10.1016/S1872-2067(14)60269-2</a>
Alternative languages
Result language
angličtina
Original language name
Dependence of photocatalytic activity of ZnxCd1-xS quantum dot composition
Original language description
Aqueous colloidal dispersions containing ZnxCd1-xS quantum dots (QDs) of different x compositions were prepared by precipitating zinc and cadmium acetates with sodium sulphide, in the presence of acetyltrimethylammonium bromide stabilizer. The QD size decreased with increasing Zn content. The photocatalytic activity of the ZnxCd1-xS QDs was studied by the decomposition of methylene blue under UV irradiation, at a maximum intensity at 365 nm (3.4 eV). Three different photocatalytic activity regions wereobserved, which depended on the Zn content. The quantum levels of the QDs could be excited by incident irradiation, and influenced the resulting photocatalytic activity. Maximum photocatalytic activity was achieved at x = 0.6, where the QD transition energy was equal to the irradiation photon energy. The photocatalytic efficiency of the QDs depended on their surface area and arrangement of quantum levels, because of the quantum size effect.
Czech name
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Czech description
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Classification
Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chinese Journal of Catalysis
ISSN
0253-9837
e-ISSN
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Volume of the periodical
36
Issue of the periodical within the volume
3
Country of publishing house
CN - CHINA
Number of pages
8
Pages from-to
328-335
UT code for WoS article
000351029200010
EID of the result in the Scopus database
2-s2.0-84925841093