Simple and tailorable synthesis of silver nanoplates in gram quantities

Mravljak, Rok (avtor), Podgornik, Aleš (avtor)

Due to plasmonic and catalytic properties, silver nanoplates are of significant interest; therefore, their simple preparation in gram quantities is required. Preferably, the method is seedless, consists of few reagents, enables preparation of silver nanoplates with desired optical properties in high concentration, is scalable, and allows their long-term storage. The developed method is based on silver nitrate, sodium borohydride, polyvinylpyrrolidone, and H$_2$O$_2$ as the main reagents, while antifoam A204 is implemented to achieve better product quality on a larger scale. The effect of each component was evaluated and optimized. Solution volumes from 3 to 450 mL and concentrations of silver nanoplates from 0.88 to 4.8 g/L were tested. Their size was tailored from 25 nm to 8 μm simply by H$_2$O$_2$ addition, covering the entire visible plasmon spectra and beyond. They can be dried and spontaneously dispersed after at least one month of storage in the dark without any change in plasmonic properties. Their potential use in modern art was demonstrated by drying silver colloids on different surfaces in the presence of reagents or purified, resulting in a variety of colors but, more importantly, patterns of varying complexity, from simple multi-coffee-rings structures to dendritic forms and complex multilevel Sierpiński triangle fractals.

• Jezik: Angleški jezik
• Ključne besede: silver nanoplates, large-scale, seedless synthesis, high concentration, plasmonic properties, surface patterns, colloids, metal nanoparticles, nanoplates, silver, surface plasmon resonance
• Vrsta gradiva: Članek v reviji
• Tipologija: 1.01 - Izvirni znanstveni članek
• Organizacija: FKKT - Fakulteta za kemijo in kemijsko tehnologijo
• Status publikacije: Objavljeno
• Različica publikacije: Objavljena publikacija
• Leto izida: 2023
• Št. strani: Str. 2760-2772
• Številčenje: Vol. 8, iss. 2
• PID: 20.500.12556/RUL-144324
• UDK: 620.3:546.57
• ISSN pri članku: 2470-1343
• DOI: 10.1021/acsomega.2c07452
• COBISS.SI-ID: 137365251
• Datum objave v RUL: 14.02.2023

Gradivo je del revije

• Naslov: ACS omega
• Skrajšan naslov: ACS omega
• Založnik: American Chemical Society
• ISSN: 2470-1343
• COBISS.SI-ID: 525873945

Licence

• Licenca: CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
• Povezava: http://creativecommons.org/licenses/by/4.0/deed.sl
• Opis: To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.

Sekundarni jezik

• Jezik: Slovenski jezik
• Ključne besede: srebrne nanoploščice, veliko merilo, sinteza brez jeder, visoka koncentracija, plazmonske lastnosti, površinski vzorci

Projekti

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: J7-2603
• Naslov: Učinkovitost bakteriofagov za zdravljenje ekstracelularnih in intracelularnih bakterijskih okužb implantatov

• Financer: ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
• Številka projekta: P1-0153
• Naslov: Raziskave in razvoj analiznih metod in postopkov