Polyol Synthesis of Silver Nanoparticles: Mechanism of Reduction by Alditol Bearing Polysaccharides

2009 ◽  
Vol 10 (2) ◽  
pp. 210-213 ◽  
Author(s):  
Ivan Donati ◽  
Andrea Travan ◽  
Chiara Pelillo ◽  
Tommaso Scarpa ◽  
Anna Coslovi ◽  
...  
Nano Letters ◽  
2004 ◽  
Vol 4 (10) ◽  
pp. 2057-2057 ◽  
Author(s):  
Benjamin Wiley ◽  
Thurston Herricks ◽  
Yugang Sun ◽  
Younan Xia

2016 ◽  
Vol 78 (4) ◽  
pp. 515-524 ◽  
Author(s):  
A. I. Titkov ◽  
E. Yu. Gerasimov ◽  
M. V. Shashkov ◽  
O. A. Logutenko ◽  
N. V. Bulina ◽  
...  

2019 ◽  
Vol 6 (11) ◽  
pp. 115067
Author(s):  
Jill I Tracey ◽  
Seerat Aziz ◽  
Deirdre M O’Carroll

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Canh Minh Thang Nguyen ◽  
Vinh Tien Nguyen

We prepared silver nanoparticles (AgNP) embedded in SiO2 using a green polyol approach by conducting the synthesis at ambient temperature and pH. Glycerol solutions of SiO2 and silver nitrate were stirred overnight at room temperature. UV-vis spectra and TEM images of the reaction dispersion and XRD patterns of the centrifuged solid confirmed formation of AgNP (6 ± 2 nm) were embedded in SiO2. AAS showed that, about 50% of initial silver was deposited on SiO2. The presence of SiO2 enhanced the formation of AgNP and the stability of Ag/SiO2 in glycerol. The reason for these findings was probably the ultrasonic-probe dispersion of SiO2 in glycerol, which caused chemical interactions between glycerol and SiO2. Compared to bare AgNP, the AgNP/SiO2 demonstrated higher catalytic activity toward 4-nitrophenol reduction by NaBH4. The highest apparent rate constant was approximately 1.1 ∗ 10−4 s−1, comparable with Ag/SiO2 catalysts prepared using other methods. This study proposes a greener polyol method to synthesize SiO2-supported AgNP catalyst that does not require heating or regulating pH of the reaction mixture. This nanocomposite can be used in catalytic, antimicrobial, sensing, and other applications that are using AgNP/SiO2 synthesized by conventional methods.


Author(s):  
T O Teplyakova ◽  
D V Popova ◽  
S D Prokoshkin ◽  
A S Konopatsky

Nano Letters ◽  
2004 ◽  
Vol 4 (9) ◽  
pp. 1733-1739 ◽  
Author(s):  
Benjamin Wiley ◽  
Thurston Herricks ◽  
Yugang Sun ◽  
Younan Xia

2020 ◽  
Vol 36 (1) ◽  
pp. 139-143
Author(s):  
Canh Minh Thang Nguyen ◽  
Quoc Khanh Tran ◽  
Vinh Tien Nguyen

MRS Advances ◽  
2018 ◽  
Vol 3 (15-16) ◽  
pp. 861-866
Author(s):  
Faith Bamiduro ◽  
Nicola William ◽  
Nicole Hondow ◽  
Steven Milne ◽  
Andrew Nelson ◽  
...  

AbstractMetallic silver nanoparticles were synthesized using a hydrothermal route for use in high throughput biosensing applications. Particle shape was engineered by varying polyvinyl pyrollidone (PVP) concentration in the precursor mixture, resulting in the emergence of flat triangular shaped nanoparticles with increasing PVP content. The hydrothermal method was found to yield particles with better particle size distribution and longer shelf life relative to polyol synthesis particles.


The catalytic and electro catalytic properties was determined by using size and shape of platinum nanoparticles . To produce well defined and controllable shapes of platinum nanoparticles and improve their performance in terms catalytic activity and selectivity many chemical methods has been developed. Synthesis of colloidal platinum nanoparticles in three different shapes by using polyol synthesis method, Polyvinylpyrrolidone (PVP) as a reducing agent in first method. Ethylene glycol has been used as a solvent and addition of silver ions for enhances the crystal growth. Sodium borohydride has been used as the reducing agent in the second method. Most of the papers silver nanoparticles were synthesized. In this paper we try the potassium chloroplatinate has to be reducing platinum nanoparticles by sodium borohydride. The same methods to be using a silver nitrate is convert to silver nanoparticles by using the same reducing agents


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