scholarly journals Decoration of silver nanoparticles on nitrogen-doped nanoporous carbon derived from zeolitic imidazole framework-8 (ZIF-8) via in situ auto-reduction

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6614-6619
Author(s):  
Vediyappan Veeramani ◽  
Nguyen Van Chi ◽  
Yi-Lin Yang ◽  
Nguyen Thi Hong Huong ◽  
Thuan Van Tran ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Supported Catalyst ◽  
Nanoporous Carbon ◽  
Reducing Agent ◽  
Nitrogen Doped ◽  
Metal Residue

Unremoved metal residue and no utilization of reducing agent could be applied for synthesizing metal-supported catalyst.

scholarly journals Development of antibacterial and UV protective cotton fabrics using plant food waste and alien invasive plant extracts as reducing agents for the in-situ synthesis of silver nanoparticles

Cellulose ◽  
2021 ◽  
Author(s):  
Nina Čuk ◽  
Martin Šala ◽  
Marija Gorjanc
Keyword(s):  
Silver Nanoparticles ◽  
Green Tea ◽  
Food Waste ◽  
Cotton Fabrics ◽  
Reducing Agent ◽  
Plant Food ◽  
Japanese Knotweed ◽  
Tea Leaves ◽  
Green Tea Leaves

Abstract The development of cellulose-based textiles that are functionalised with silver nanoparticles (AgNP), synthesised according to a green approach, and offer protection against ultraviolet (UV) radiation and pathogenic bacteria is very important today. In the present work we demonstrate the environmentally friendly approach to obtain such textile material by AgNP synthesis directly (in-situ) on cotton fabrics, using water extracts of plant food waste (green tea leaves, avocado seed and pomegranate peel) and alien invasive plants (Japanese knotweed rhizome, goldenrod flowers and staghorn sumac fruit) as reducing agents. The extracts were analysed for their total content of phenols and flavonoids and their antioxidant activity. The synthesised AgNP on cotton were round, of different size and amount depending on the reducing agent used. The highest amount of AgNP was found for samples where Japanese knotweed rhizome extract was used as reducing agent and the lowest where extracts of goldenrod flowers and green tea leaves were used. Regardless of the reducing agent used to form AgNP, all cotton samples showed excellent protection against E. coli and S. aureus bacteria and against UV radiation with UV protection factor values above 50. The best results for UV protection even after the twelve repetitive washing cycles were found for the sample functionalized with AgNP synthesised with an extract of the Japanese knotweed rhizome. Due to the presence of AgNP on cotton, the air permeability and thermal conductivity decreased. AgNP had no effect on the change in breaking strength or elongation of fabrics. Graphic abstract

In situ nitrogen-doped nanoporous carbon nanocables as an efficient metal-free catalyst for oxygen reduction reaction

2014 ◽  
Vol 2 (26) ◽  
pp. 10154 ◽  
Author(s):  
Wen-Jie Jiang ◽  
Jin-Song Hu ◽  
Xing Zhang ◽  
Yan Jiang ◽  
Bin-Bin Yu ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Oxygen Reduction ◽  
Nanoporous Carbon ◽  
Reduction Reaction ◽  
Nitrogen Doped ◽  
Metal Free

scholarly journals Nanocomposite egg shell powder with in situ generated silver nanoparticles using inherent collagen as reducing agent

2020 ◽  
Vol 5 (2) ◽  
pp. 101-107 ◽  
Author(s):  
Krittirash Yorseng ◽  
Suchart Siengchin ◽  
Basa Ashok ◽  
Anumakonda Varada Rajulu
Keyword(s):  
Silver Nanoparticles ◽  
Reducing Agent ◽  
Egg Shell ◽  
Shell Powder

In situ solution plasma synthesis of silver nanoparticles supported on nitrogen-doped carbons with enhanced oxygen reduction activity

2019 ◽  
Vol 251 ◽  
pp. 135-139 ◽  
Author(s):  
Gasidit Panomsuwan ◽  
Jidapa Chantaramethakul ◽  
Chayanaphat Chokradjaroen ◽  
Takahiro Ishizaki
Keyword(s):  
Silver Nanoparticles ◽  
Oxygen Reduction ◽  
Plasma Synthesis ◽  
Nitrogen Doped ◽  
Reduction Activity

Study on Effect of Sericin on Size and Shape of Silver Nanoparticles Prepared by a Redox Method

2014 ◽  
Vol 1015 ◽  
pp. 480-483
Author(s):  
Men Wu ◽  
Dong Sheng Wang
Keyword(s):  
Silver Nanoparticles ◽  
Room Temperature ◽  
Reaction System ◽  
Reducing Agent ◽  
Stabilizing Agent ◽  
Multiple Functions ◽  
Silk Sericin ◽  
Size And Shape ◽  
Redox Method

Silk sericin is used as a biotemplate to redox silver nanoparticles in situ at room temperature. Silk sericin provides multiple functions in the whole reaction system, serving as the reducing agent of Ag+, and the dispersing and stabilizing agent of the resulted silver nanoparticles. The effect of the concentration of sericin on size and shape of the reduced silver nanoparticles is studied. UV-vis spectra and TEM are used to detected the characteristic plasmon and the appearance of the obtained silver nanoparticles.

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