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| rdf:type
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| Description
| - Byl studován proces delaminace/exfoliace Mg-vermikulitu (Letovice, ČR), s částicemi pod 5 μm, po úpravě peroxodisíranem draselným a provedeno srovnání s používanou metodou úpravy peroxidem vodíku. Záznamy rtg práškové difrakce ukazují, že úprava Mg-vermikulitu roztoky peroxodisíranu o různé molární koncentraci při teplotě 60 °C po dobu 2 h způsobily snížení relativní intenzity bazální 001 difrakce na 15 %, 9 % a 4 %, ve srovnání s intenzitou 001 diffrakce původního Mg-vermikulitu (100 %). Oproti tomu, Irel. 001 difrakce Mg-vermikulitu po úpravě 30 % a 50 % roztokem peroxidu vodíku se snížila pouze na Irel. = 36 % a 32 %. Mikroskopie atomárních sil a skenovací elektronová mikroskopie potvrdily vliv peroxodisíranu na strukturní degradaci související s vyšším stupněm delaminace/exfoliace částic a jejich rozpad na nanočástice. (cs)
- Delamination/exfoliation process of the Mg-vermiculite (Letovice, CZE), particles with size less than 5 μm, was studied after potassium persulfate treatment and compared with known method of hydrogen peroxide treatment. X-ray powder diffraction patterns showed that treatment of Mg-vermiculite with different molar concentration of persulfate at the temperature 60 °C for 2 h. caused reduction of relative intensity of the basal 001 diffraction to the 15 %, 9 % and 4 %, respectively, compared to intensity of 001 diffraction of untreated Mg-vermiculite (100 %). On the other hand Irel. of the 001 diffraction of Mg-vermiculite after treatment with 30 % and 50 % hydrogen peroxide decreased only to Irel. = 36 % and 32 %, respectively. Atomic Force Microscopy and Scanning Electron Microscopy verified effect of the treatment on structure degradation connected with higher degree of delamination/exfoliation of the particles and their cracking into nano-sized particles.
- Delamination/exfoliation process of the Mg-vermiculite (Letovice, CZE), particles with size less than 5 μm, was studied after potassium persulfate treatment and compared with known method of hydrogen peroxide treatment. X-ray powder diffraction patterns showed that treatment of Mg-vermiculite with different molar concentration of persulfate at the temperature 60 °C for 2 h. caused reduction of relative intensity of the basal 001 diffraction to the 15 %, 9 % and 4 %, respectively, compared to intensity of 001 diffraction of untreated Mg-vermiculite (100 %). On the other hand Irel. of the 001 diffraction of Mg-vermiculite after treatment with 30 % and 50 % hydrogen peroxide decreased only to Irel. = 36 % and 32 %, respectively. Atomic Force Microscopy and Scanning Electron Microscopy verified effect of the treatment on structure degradation connected with higher degree of delamination/exfoliation of the particles and their cracking into nano-sized particles. (en)
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| Title
| - Preparation of Mg-vermiculite nanoparticles using potassium persulfate
- Preparation of Mg-vermiculite nanoparticles using potassium persulfate (en)
- Preparation of Mg-vermiculite nanoparticles using potassium persulfate (cs)
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| skos:prefLabel
| - Preparation of Mg-vermiculite nanoparticles using potassium persulfate
- Preparation of Mg-vermiculite nanoparticles using potassium persulfate (en)
- Preparation of Mg-vermiculite nanoparticles using potassium persulfate (cs)
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| skos:notation
| - RIV/61989100:27640/06:00014372!RIV07-GA0-27640___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA205/05/2548), Z(MSM6198910016)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
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| http://linked.open...ai/riv/idVysledku
| - RIV/61989100:27640/06:00014372
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Mg-vermiculite; exfoliation; potassium persulfate; hydrogen peroxide; X-ray diffraction; atomic force microscopy (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Journal of Nanoscience and Nanotechnology
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...v/svazekPeriodika
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| http://linked.open...iv/tvurceVysledku
| - Kratošová, Gabriela
- Matějka, Vlastimil
- Valášková, Marta
- Šupová, Monika
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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