PL429839A1 - Method of preparing titanium dioxide modified with silver nanoparticles using natural plant extracts - Google Patents

Method of preparing titanium dioxide modified with silver nanoparticles using natural plant extracts

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Publication number
PL429839A1
PL429839A1 PL429839A PL42983919A PL429839A1 PL 429839 A1 PL429839 A1 PL 429839A1 PL 429839 A PL429839 A PL 429839A PL 42983919 A PL42983919 A PL 42983919A PL 429839 A1 PL429839 A1 PL 429839A1
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PL
Poland
Prior art keywords
silver
titanium dioxide
modified
plant extract
plant extracts
Prior art date
Application number
PL429839A
Other languages
Polish (pl)
Other versions
PL241040B1 (en
Inventor
Maja Rejek
Joanna Grzechulska-Damszel
Antoni Waldemar Morawski
Original Assignee
Zachodniopomorski Uniwersytet Technologiczny W Szczecinie
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by Zachodniopomorski Uniwersytet Technologiczny W Szczecinie filed Critical Zachodniopomorski Uniwersytet Technologiczny W Szczecinie
Priority to PL429839A priority Critical patent/PL241040B1/en
Publication of PL429839A1 publication Critical patent/PL429839A1/en
Publication of PL241040B1 publication Critical patent/PL241040B1/en

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  • Catalysts (AREA)

Abstract

Przedmiotem zgłoszenia jest sposób wytwarzania ditlenku tytanu modyfikowanego nanocząstkami srebra z wykorzystaniem naturalnych ekstraktów roślinnych, według wynalazku, który charakteryzuje się tym, że do roztworu AgNO3, jako reduktor jonów srebra do srebra, dodaje się wodny ekstrakt roślinny i wkrapla tetraizopropanolan tytanu (TTIP) w stosunku odpowiednio 350:50:30, a następnie intensywnie miesza przez 24 godziny. Powstałą zawiesinę wiruje się kilkukrotnie w 4°C z przemywaniem wodą destylowaną. Uzyskany osad suszy się w temperaturze pokojowej. Uzyskuje się ditlenek tytanu modyfikowany srebrem w formie proszku. Prekursorem ditlenku tytanu jest tetraizopropanolan tytanu (TTIP) a prekursorem jonów srebra azotan srebra (AgNO3). Stosuje się wodny ekstrakt roślinny otrzymany z liści świeżej i/lub wysuszonej koniczyny polnej. Wodny ekstrakt roślinny utrzymuje się w stanie wrzenia przez 10 minut. Proces wytwarzania ditlenku tytanu modyfikowanego srebrem prowadzi się przy ciągłym mieszaniu, w temperaturze pokojowej i przy ciśnieniu atmosferycznym.The subject of the application is a method for the production of titanium dioxide modified with silver nanoparticles using natural plant extracts, according to the invention, which is characterized in that an aqueous plant extract is added to the AgNO3 solution as a reducer of silver ions to silver and titanium tetraisopropoxide (TTIP) is added dropwise in the ratio suitably 350: 50: 30, and then vigorously mix for 24 hours. The resulting suspension is centrifuged several times at 4 ° C, washing with distilled water. The resulting precipitate is dried at room temperature. The obtained titanium dioxide is modified with silver in the form of a powder. The titanium dioxide precursor is titanium tetraisopropoxide (TTIP) and the silver ion precursor is silver nitrate (AgNO3). An aqueous plant extract obtained from the leaves of fresh and / or dried field clover is used. The aqueous plant extract is boiled for 10 minutes. The process of producing silver-modified titanium dioxide is carried out under constant stirring, at room temperature and atmospheric pressure.

PL429839A 2019-05-09 2019-05-09 Method of preparing titanium dioxide modified with silver nanoparticles using natural plant extracts PL241040B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL429839A PL241040B1 (en) 2019-05-09 2019-05-09 Method of preparing titanium dioxide modified with silver nanoparticles using natural plant extracts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL429839A PL241040B1 (en) 2019-05-09 2019-05-09 Method of preparing titanium dioxide modified with silver nanoparticles using natural plant extracts

Publications (2)

Publication Number Publication Date
PL429839A1 true PL429839A1 (en) 2020-11-16
PL241040B1 PL241040B1 (en) 2022-07-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
PL429839A PL241040B1 (en) 2019-05-09 2019-05-09 Method of preparing titanium dioxide modified with silver nanoparticles using natural plant extracts

Country Status (1)

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PL (1) PL241040B1 (en)

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Publication number Publication date
PL241040B1 (en) 2022-07-25

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