PL415546A1 - Method for obtaining stable suspensions of silver nanoparticles with positive surface charge - Google Patents
Method for obtaining stable suspensions of silver nanoparticles with positive surface chargeInfo
- Publication number
- PL415546A1 PL415546A1 PL415546A PL41554615A PL415546A1 PL 415546 A1 PL415546 A1 PL 415546A1 PL 415546 A PL415546 A PL 415546A PL 41554615 A PL41554615 A PL 41554615A PL 415546 A1 PL415546 A1 PL 415546A1
- Authority
- PL
- Poland
- Prior art keywords
- silver
- aminothioethanol
- surface charge
- reducing agent
- positive surface
- Prior art date
Links
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
Abstract
Przedmiotem zgłoszenia jest sposób uzyskiwania stabilnych suspensji nanocząstek srebra o dodatnim ładunku powierzchniowym na drodze redukcji chemicznej, z użyciem nieorganicznego czynnika redukującego, rozpuszczalnych w wodzie soli srebra jako źródła jonów srebra, a zwłaszcza azotanu(V) srebra lub octanu srebra oraz 2-aminotioetanolu jako stabilizatora. Sposób ten charakteryzuje się tym, że jony srebra, wprowadzone do wodnego środowiska reakcji w postaci azotanu(V) srebra lub octanu srebra, kompleksuje się 2-aminotioetanolem, wprowadzonym do środowiska reakcji w postaci chlorowodorku, po czym dokonuje się redukcji chemicznej skompleksowanych jonów srebra, stosując jako reduktor fosfinian(I) sodu w stężeniu molowym od 0,5 mM do 40 mM, przy czym roztwór reduktora wprowadza się do zakwaszonego roztworu kompleksów jonów srebra z 2-aminotioetanolem, zachowując pH mieszaniny reakcyjnej w przedziale od 2 do 4.The subject of the application is a method for obtaining stable suspensions of silver nanoparticles with a positive surface charge by chemical reduction, using an inorganic reducing agent, water-soluble silver salts as a source of silver ions, in particular silver nitrate (V) or silver acetate and 2-aminothioethanol as a stabilizer . This method is characterized by the fact that silver ions, introduced into the aqueous reaction environment in the form of silver nitrate or silver acetate, are complexed with 2-aminothioethanol, introduced into the reaction environment in the form of the hydrochloride, followed by chemical reduction of the complexed silver ions, using sodium phosphinate (I) as a reducing agent in a molar concentration from 0.5 mM to 40 mM, the reducing agent solution being introduced into the acidified solution of silver ion complexes with 2-aminothioethanol, maintaining the pH of the reaction mixture in the range from 2 to 4.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL415546A PL235834B1 (en) | 2015-12-28 | 2015-12-28 | Method for obtaining stable suspensions of silver nanoparticles with positive surface charge |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL415546A PL235834B1 (en) | 2015-12-28 | 2015-12-28 | Method for obtaining stable suspensions of silver nanoparticles with positive surface charge |
Publications (2)
Publication Number | Publication Date |
---|---|
PL415546A1 true PL415546A1 (en) | 2017-07-03 |
PL235834B1 PL235834B1 (en) | 2020-11-02 |
Family
ID=59201348
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PL415546A PL235834B1 (en) | 2015-12-28 | 2015-12-28 | Method for obtaining stable suspensions of silver nanoparticles with positive surface charge |
Country Status (1)
Country | Link |
---|---|
PL (1) | PL235834B1 (en) |
-
2015
- 2015-12-28 PL PL415546A patent/PL235834B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
PL235834B1 (en) | 2020-11-02 |
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