Biogenic silicon dioxide nanoparticles processed from natural sources

Kód výsledku v IS VaVaI

RIV/46747885:24210/21:00007607 - isvavai.cz

Nalezeny alternativní kódy

RIV/46747885:24620/21:00007607

Výsledek na webu

https://www.tandfonline.com/doi/full/10.1080/02726351.2020.1758857

DOI - Digital Object Identifier

10.1080/02726351.2020.1758857

Jazyk výsledku

angličtina

Název v původním jazyce

Biogenic silicon dioxide nanoparticles processed from natural sources

Popis výsledku v původním jazyce

The 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 500–650o C. After the above-mentioned processes silica was studied using ICP-OES, FTIR, TEM, and N2 adsorption. The nanoparticles obtained from the investigated kinds of plants showed an amorphous structure, iffered 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.

Název v anglickém jazyce

Biogenic silicon dioxide nanoparticles processed from natural sources

Popis výsledku anglicky

The 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 500–650o C. After the above-mentioned processes silica was studied using ICP-OES, FTIR, TEM, and N2 adsorption. The nanoparticles obtained from the investigated kinds of plants showed an amorphous structure, iffered 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20401 - Chemical engineering (plants, products)

Projekt

EF16_019/0000843: Hybridní materiály pro hierarchické struktury

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Particulate Science and Technology

ISSN

0272-6351

e-ISSN

—

Svazek periodika

39

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

481-489

Kód UT WoS článku

000532026900001

EID výsledku v databázi Scopus

2-s2.0-85084251104