Reversible redox behaviour between silver cations and silver metal particles in hydrated Ag-Y zeolites

1993 ◽  
Vol 89 (3) ◽  
pp. 595 ◽  
Author(s):  
Toshihide Baba ◽  
Noboru Akinaka ◽  
Mamoru Nomura ◽  
Yoshio Ono
Keyword(s):  
Metal Particles ◽  
Y Zeolites ◽  
Redox Behaviour ◽  
Reversible Redox ◽  
Silver Metal ◽  
Silver Cations

Various Applications of Silver Nano-Particles by Ultrasonic Eco-Fabrication

2005 ◽  
Vol 486-487 ◽  
pp. 530-533 ◽  
Author(s):  
Yamato Hayashi ◽  
Hirotsugu Takizawa ◽  
Yoshitaka Saijo ◽  
Tohru Sekino ◽  
Katsuaki Suganuma ◽  
...  
Keyword(s):  
Metal Oxides ◽  
Noble Metal ◽  
Room Temperature ◽  
Silver Oxide ◽  
Nano Particles ◽  
Metal Particles ◽  
Noble Metal Oxides ◽  
Alcohol System ◽  
Silver Metal ◽  
Suitable Process

Applications of silver nano-sized metal particles were investigated for a new, ecologically friendly and economical liquid-solid (silver oxide-alcohol) system. Silver metal oxides as starting materials have merits in metal particles fabrication because these materials are decomposed only by heating in air. That is, noble metal oxide does not use thestrong reduction atmosphere. This reduction is ecologically clean because many noble metal oxides are not toxic, and because O2 is evolved during decomposition. We reduced silver metal oxides by ultrasound and fabricated silver nano metal nanoparticles at room temperature, and various applications were investigated. By choosing a suitable process and conditions, it is reasonable to expect that ultrasonic eco-fabrications can be extended to obtain various silver nano-particles containing materials.

Reversible redox behaviour of two electroactive polymethacrylates

1999 ◽  
Vol 42 (5) ◽  
pp. 567-574
Author(s):  
Michael B. Leitner
Keyword(s):  
Redox Behaviour ◽  
Reversible Redox

Adsorption and 129Xe n.m.r. of xenon in silver-exchanged Y zeolites: Application to the location of silver cations

Zeolites ◽  
1992 ◽  
Vol 12 (8) ◽  
pp. 909-915 ◽  
Author(s):  
R. Grosse ◽  
A. Gedeon ◽  
J. Watermann ◽  
J. Fraissard ◽  
B. Boddenberg
Keyword(s):  
Y Zeolites ◽  
Silver Cations

scholarly journals Synthesis of Silver Nanoparticles (NPAg) using Andaliman (Zanthoxylum acanthopodium DC.) Fruit Water Extract and Its Application in Indigosol Blue Photodegradation

2019 ◽  
Vol 22 (5) ◽  
pp. 200-205 ◽  
Author(s):  
Gusti Ayu Dewi Lestari ◽  
Iryanti Eka Suprihatin ◽  
James Sibarani
Keyword(s):  
Particle Size ◽  
Silver Nanoparticles ◽  
Irradiation Time ◽  
Synthesis Method ◽  
Water Extract ◽  
Metal Particles ◽  
Blue Dye ◽  
Particle Size Analyzer ◽  
Optimum Ph ◽  
Silver Metal

Silver nanoparticles (NPAg) are silver metal particles that are less than 100 nm in size. NPAg has several advantages, one of which is as a catalyst in the process of photodegradation. NPAg was obtained by reducing AgNO3 using andaliman fruit water extract (Zanthoxylum acanthopodium DC.). This synthesis method is very effective because it is fast, non-toxic and environmentally friendly technology. This research aims to synthesize optimum NPAg and its application in the photodegradation process of Indigosol Blue in the form of volume, irradiation time, and optimum pH. NPAg synthesis was observed using a UV-VIS spectrophotometer while its size was observed using PSA (Particle Size Analyzer). The results showed the best NPAg synthesized using 1x10-3 M AgNO3 at 60°C with average NPAg size of 9.04 nm. NPAg which is formed is stable for ± 35 days. The optimum condition for the photodegradation process was achieved by using 2 mL NPAg 4 hour irradiation at pH 3. From the results of this study it can be concluded that NPAg can to reduce the concentration of Indigosol Blue dye by up to 94.75%.

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