Surface modified ZnO nano structures: Electrochemical studies for energy applications and removal of emerging organic pollutant dye by photo induced hetero-catalysis
Identifikátory výsledku
Kód výsledku v 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>
Nalezeny alternativní kódy
RIV/68407700:21220/23:00372291
Výsledek na webu
<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>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Surface modified ZnO nano structures: Electrochemical studies for energy applications and removal of emerging organic pollutant dye by photo induced hetero-catalysis
Popis výsledku v původním jazyce
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.
Název v anglickém jazyce
Surface modified ZnO nano structures: Electrochemical studies for energy applications and removal of emerging organic pollutant dye by photo induced hetero-catalysis
Popis výsledku anglicky
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.
Klasifikace
Druh
J<sub>imp</sub> - Článek v periodiku v databázi Web of Science
CEP obor
—
OECD FORD obor
10403 - Physical chemistry
Návaznosti výsledku
Projekt
—
Návaznosti
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Ostatní
Rok uplatnění
2023
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název periodika
Inorganic Chemistry Communications
ISSN
1387-7003
e-ISSN
1879-0259
Svazek periodika
157
Číslo periodika v rámci svazku
November 2023
Stát vydavatele periodika
NL - Nizozemsko
Počet stran výsledku
16
Strana od-do
111276
Kód UT WoS článku
001070623300001
EID výsledku v databázi Scopus
2-s2.0-85169043640