Photoactive and non-hazardous kaolin/ZnO composites prepared by calcination of sodium zinc carbonate

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27360%2F17%3A86100516" target="_blank" >RIV/61989100:27360/17:86100516 - isvavai.cz</a>
Alternative codes found
RIV/44555601:13440/17:43892829 RIV/61989100:27640/17:86100516 RIV/61989100:27740/17:86100516
Result on the web
<a href="http://www.sciencedirect.com/science/article/pii/S0169131717301667" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0169131717301667</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.clay.2017.04.003" target="_blank" >10.1016/j.clay.2017.04.003</a>

Result language
angličtina
Original language name
Photoactive and non-hazardous kaolin/ZnO composites prepared by calcination of sodium zinc carbonate
Original language description
The photocatalytic activity of kaolin/ZnO composites prepared by calcination was investigated. The proposed synthesis procedure comprises the reaction of ZnCl2 with Na2CO3 in water dispersion of kaolin KKAF. Precursor sodium zinc carbonate Na2Zn3(CO3)4∙3H2O is formed and after its thermal decomposition the nanostructured ZnO is formed. Using this procedure the kaolin/ZnO composites containing ~ 6 and ~ 39 mass% of ZnO were prepared. X-ray fluorescence was used for determination of the ZnO yield. Phase composition of composites thermally treated at 100 – 600°C was studied using X-ray diffraction method. UV-VIS diffuse reflectance spectroscopy was used to determine the band gap energy of prepared composites and their photocatalytic activity was tested by discoloration of Acid Orange 7 in aqueous solution. Composite containing ~ 39 mass% of ZnO and calcined at 600°C exhibits the highest photocatalytic activity. Leaching tests proved that the composites can be considered non-hazardous.
Czech name
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Czech description
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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
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
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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