Surface modified ZnO nano structures: Electrochemical studies for energy applications and removal of emerging organic pollutant dye by photo induced hetero-catalysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11140%2F23%3A10469064" target="_blank" >RIV/00216208:11140/23:10469064 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21220/23:00372291
Result on the web
<a href="https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8DC_Jm_ybN" target="_blank" >https://verso.is.cuni.cz/pub/verso.fpl?fname=obd_publikace_handle&handle=8DC_Jm_ybN</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.inoche.2023.111276" target="_blank" >10.1016/j.inoche.2023.111276</a>
Alternative languages
Result language
angličtina
Original language name
Surface modified ZnO nano structures: Electrochemical studies for energy applications and removal of emerging organic pollutant dye by photo induced hetero-catalysis
Original language description
Surface modified Cu-ZnO nanostructures with different ratios of Cu (0.0 %, 2.5 %, 5.0 %, 7.5 % and 10.0 %) have been fabricated using a simplified sol gel auto combustion method (SGAC). The utilization of aqueous methanolic solution (50:50 ratio) as the reaction medium, with zinc chloride, ZnCl2, serving as a precursor to modified Cu-ZnO nanostructures and ZnO nanostructures (NSs) in particular, was a novel aspect of this study. XRD, FTIR, SEM, EDX, and UV-Visible spectrum analyses were carried out for the analysis of products. The prepared materials were used to study the electrochemical and photocatalytic properties. By introducing Cu metal on the surface of ZnO, the electrical conductivity was increased, and this attribute was investigated using energy band gap calculations and CV analysis. The energy band gap of fabricated nanostructures found to be decreased from 3.36 to 3.20 eV. The Cu modified ZnO based electrode showed the enhanced relative electron transport and increased peak current which made it to be more efficient in electrochemical applications. Degradation study of Tartrazine azo dye (organic) was carried out to examine the photo-induced catalytic activities of prepared materials under solar radiations, UV-light and darkness. The photocatalytic activity was revealed to be optimum up to 86.12 % when exposed to solar radiations and also with increasing Cu concentration up to 10.0 % on the ZnO surface. When compared to pure ZnO, all synthesized Cu modified ZnO NSs exhibited increased peak current, enhanced relative electron transport and optimized photo-induced catalytic degradation of organic pollutant dye. It was revealed that products manufactured using the SGAC technique had higher quality and produced better results for the intended applications than those previously reported.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10403 - Physical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Inorganic Chemistry Communications
ISSN
1387-7003
e-ISSN
1879-0259
Volume of the periodical
157
Issue of the periodical within the volume
November 2023
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
16
Pages from-to
111276
UT code for WoS article
001070623300001
EID of the result in the Scopus database
2-s2.0-85169043640