scholarly journals In‐situ synthesis of silver nanoparticles on porous silicon nanostructure through galvanic displacement reaction and its application in construction of glucose screen printed sensor

2018 ◽  
Vol 13 (10) ◽  
pp. 1431-1436
Author(s):  
Farzad Allahnouri ◽  
Khalil Farhadi ◽  
Habibollah Eskandari ◽  
Rahim Molaei ◽  
Mehdi Mokhtari Abarghoui ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Porous Silicon ◽  
In Situ Synthesis ◽  
Displacement Reaction ◽  
Galvanic Displacement ◽  
Silicon Nanostructure ◽  
Galvanic Displacement Reaction ◽  
Porous Silicon Nanostructure ◽  
Screen Printed

Rapid and selective colorimetric sensing of Au3+ ions based on galvanic displacement of silver nanoparticles

2019 ◽  
Vol 43 (47) ◽  
pp. 18741-18746 ◽  
Author(s):  
Sengan Megarajan ◽  
Ravi Kanth Kamlekar ◽  
P. Suresh Kumar ◽  
Veerappan Anbazhagan
Keyword(s):  
Silver Nanoparticles ◽  
Displacement Reaction ◽  
Galvanic Displacement ◽  
Colorimetric Sensing ◽  
Galvanic Displacement Reaction

Au3+ decolorizes AgNPs through a galvanic displacement reaction.

A New Method of Finishing of Cotton Fabric by in Situ Synthesis of Silver Nanoparticles

2014 ◽  
Vol 53 (11) ◽  
pp. 4147-4155 ◽  
Author(s):  
Anna Bacciarelli-Ulacha ◽  
Edward Rybicki ◽  
Edyta Matyjas-Zgondek ◽  
Aleksandra Pawlaczyk ◽  
Malgorzata I. Szynkowska
Keyword(s):  
Silver Nanoparticles ◽  
Cotton Fabric ◽  
In Situ Synthesis ◽  
New Method

A green in situ synthesis of silver nanoparticles on cotton fabrics using Aloe vera leaf extraction for durable ultraviolet protection and antibacterial activity

2016 ◽  
Vol 87 (19) ◽  
pp. 2407-2419 ◽  
Author(s):  
Qingqing Zhou ◽  
Jingchun Lv ◽  
Yu Ren ◽  
Jiayi Chen ◽  
Dawei Gao ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Aloe Vera ◽  
Cotton Fabrics ◽  
In Situ Synthesis ◽  
Uv Protection ◽  
X Ray ◽  
Jcpds File ◽  
Laundering Durability

This study presented a simple and environmentally friendly method of in situ synthesis of silver nanoparticles (AgNPs) on cotton fabrics for durable ultraviolet (UV) protection and antibacterial activity using Aloe vera leaf extraction (AVE) as a reducing and stabilizing agent. Cotton fabrics were pretreated in water, and then immersed in AgNO3 and AVE, respectively. Cotton fabrics were characterized by small angle X-ray diffraction (XRD), scanning electron microscopy (SEM), thermogravimetric analysis, UV protection, antibacterial activity, and laundering durability. Comparing with the smooth surface of the control cotton fabric, SEM and energy dispersive X-ray spectrometry (EDX) results showed that there were a considerable number of Ag2O and AgNPs loading on the surface of the pretreated and Ag loaded cotton fabrics. The XRD pattern indicated, respectively, the existence of Ag2O and AgNPs, the structures of which were similar to JCPDS File No.65-3289 and JCPDS File No. 01-071-4613 on the pretreated and Ag loaded cotton fabrics. The pretreated and Ag loaded cotton fabrics showed excellent UV protection, antibacterial activity, and laundering durability, especially the Ag loaded cotton fabric, of which the UV protection factor value and transmission of UVA were 148 and 1.11%, respectively, after 20 washing cycles, and the clear zone width was more than 4 mm against E. coli or S. aureus. AgNPs facilitated the improvement of the thermal property of the cotton fabrics. Thus this facile in situ reduction of AgNPs with AVE may bring a promising and green strategy to produce functional textiles.

Formation mechanism of plasmonic silver nanohexagonal particles made by galvanic displacement reaction

RSC Advances ◽  
2016 ◽  
Vol 6 (37) ◽  
pp. 31454-31461 ◽  
Author(s):  
Y. S. Yamamoto ◽  
Y. Fujime ◽  
N. Takahashi ◽  
S. Nakanishi ◽  
T. Itoh
Keyword(s):  
Formation Mechanism ◽  
Depth Profile ◽  
Profile Analysis ◽  
Displacement Reaction ◽  
Galvanic Displacement ◽  
Depth Profile Analysis ◽  
Galvanic Displacement Reaction ◽  
Xps Depth Profile

Multi-element XPS depth profile analysis made clear that Ag nanoscale hexagonal columns formed by newly-discovered galvanic displacement reaction are covered with Cu compounds which prevent Ag columns from fusion, resulting in stable hotspots.

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