Biogenic silicon dioxide nanoparticles processed from natural sources

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dc.contributor.authorAdach, Kinga
dc.contributor.authorKroisová, Dora
dc.contributor.authorFijalkowski, Mateusz
dc.date.accessioned2020-05-25T07:22:41Z
dc.date.available2020-05-25T07:22:41Z
dc.date.issued2020-04
dc.description.abstractThe main purpose of this study is to obtain the biogenic silica nanoparticles from selected types of plants and thorough characterization. Plants create SiO2 nanoparticles while growing from the colloidal solution of orthosilicic acid contained in the soil. Together with acid, they absorb additional ions that are essential for their growth, which was found using SEM and EDX analysis. The organic part of the plants was removed using a two-step method. Firstly, the plants were purified in 10% HCl in order to remove undesirable ions. Next, the optimal degradation temperatures were determined according to TGA results that varies between 500-650 degrees C. After the above-mentioned processes silica was studied using ICP-OES, FTIR, TEM, and N-2 adsorption. The nanoparticles obtained from the investigated kinds of plants showed an amorphous structure, differed in size (from 8 to 20 nm) and are not purely symmetrical in any of the investigated samples. Estimated content of SiO2 nanoparticles was in the range 11.5-25.3% depending on the sample. The specific surface area was measured using the BET method.cs
dc.format.extent10 strancs
dc.identifier.doi10.1080/02726351.2020.1758857
dc.identifier.urihttps://dspace.tul.cz/handle/15240/154877
dc.identifier.urihttps://www.tandfonline.com/doi/full/10.1080/02726351.2020.1758857
dc.language.isocscs
dc.publisherTAYLOR & FRANCIS INC, 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA
dc.relation.ispartofPARTICULATE SCIENCE AND TECHNOLOGY
dc.subjectBiogeniccs
dc.subjectsilicon dioxidecs
dc.subjectsilica nanoparticlescs
dc.subjectnanopowderscs
dc.subjectnatural sourcescs
dc.titleBiogenic silicon dioxide nanoparticles processed from natural sourcescs
local.identifier.publikace7607
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