Nanočástice stříbra - příprava a depozice na textilii
Title Alternative:Nanoparticles of silver - preparation and deposition onto a textile
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Date
2008-01-01
Authors
Journal Title
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Publisher
Technická Univerzita v Liberci
Abstract
Cílem této diplomové práce je příprava nanočástic stříbra, a to metodou fotochemickou a elektrochemickou. Dále optimalizace metodiky pro nanášení produktu na textilii. Vzniklé nanočástice z obou metod byly charakterizovány na laserovém analyzátoru velikostí částic a jejich velkosti porovnány. Nanočástice byly aplikovány z vodného prostředí na textilie. Porovnáno bylo chování jednotlivých typů vláken, a také byl sledován vliv předúpravy plazmou či změny pH na sorpci nanočástic stříbra. Na těchto, standardním postupem připravených, vzorcích byla testována změna barevnosti. Dále byla u standardních vzorků provedena analýza množství stříbra ve vláknech a vzorky byly snímkovány rastrovacím elektronovým mikroskopem (REM).
The objective of this thesis is preparation of silver nanoparticles by means of photochemical and electrochemical method. Furthermore optimization of methodology for applying of the product onto a textile. Created nanoparticles in both methods were characterised on laser analyser for particle sizes and their dimensions were compared. Nanoparticles were applied from water environment onto textiles. The behaviour of individual fibres was compared and also an influence of plazma treatment or pH sorption changes of nanoparticles of silver were examined. The colour changes were tested on these samples which were prepared by standard technique. Also analysis of silver quantity on fibres was carried out on standard samples which were screened by scanning electron microscope (REM).
The objective of this thesis is preparation of silver nanoparticles by means of photochemical and electrochemical method. Furthermore optimization of methodology for applying of the product onto a textile. Created nanoparticles in both methods were characterised on laser analyser for particle sizes and their dimensions were compared. Nanoparticles were applied from water environment onto textiles. The behaviour of individual fibres was compared and also an influence of plazma treatment or pH sorption changes of nanoparticles of silver were examined. The colour changes were tested on these samples which were prepared by standard technique. Also analysis of silver quantity on fibres was carried out on standard samples which were screened by scanning electron microscope (REM).
Description
katedra: KTC; přílohy: CD ROM; rozsah: 82
Subject(s)
nanočástice, stříbro, fotochemie, elektrochemie, nanoparticles, silver, photochemistry, electrochemistry