scholarly journals Sonochemical green reduction to prepare Ag nanoparticles decorated graphene sheets for catalytic performance and antibacterial application

2017 ◽  
Vol 39 ◽  
pp. 577-588 ◽  
Author(s):  
Sayan Ganguly ◽  
Poushali Das ◽  
Madhuparna Bose ◽  
Tushar Kanti Das ◽  
Subhadip Mondal ◽  
...  
RSC Advances ◽  
2015 ◽  
Vol 5 (86) ◽  
pp. 69955-69961 ◽  
Author(s):  
Xiaolong Zhao ◽  
Na Yan

A facile one-pot route was developed to obtain organic nanoparticles for fabrication of microporous POFs which can be utilized to entrap Ag nanoparticles and show excellent catalytic performance for organic dyes such as methylene blue in water.


Nanoscale ◽  
2016 ◽  
Vol 8 (11) ◽  
pp. 5959-5967 ◽  
Author(s):  
Jianwei Zheng ◽  
Xinping Duan ◽  
Haiqiang Lin ◽  
Zhengqiang Gu ◽  
Huihuang Fang ◽  
...  

Carbon nanotubes induce confinement of Ag nanoparticles which show superior catalytic performance for hydrogenation of dimethyl oxalate.


2011 ◽  
Vol 6 (5-6) ◽  
pp. 323-329 ◽  
Author(s):  
B. G. Ershov ◽  
A. V. Anan’ev ◽  
E. V. Abkhalimov ◽  
D. I. Kochubei ◽  
V. V. Kriventsov ◽  
...  

2016 ◽  
Vol 9 (1) ◽  
pp. 20-26 ◽  
Author(s):  
Javad Safari ◽  
Azade Enayati Najafabadi ◽  
Zohre Zarnegar ◽  
Shabnam Farkhonde Masoule

2016 ◽  
Vol 7 (1) ◽  
pp. 228-233 ◽  
Author(s):  
Liyu Chen ◽  
Binbin Huang ◽  
Xuan Qiu ◽  
Xi Wang ◽  
Rafael Luque ◽  
...  

Core–shell Pd@Ag nanoparticles are formed within the pores of MOFs via a seed mediated growth strategy with activated hydrogen atoms as the reducing agent, leading to a family of bimetallic core–shell MOF nanomaterials with excelling catalytic performance in room temperature reactions.


Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1533
Author(s):  
Abdallah Amedlous ◽  
Mohammed Majdoub ◽  
Zakaria Anfar ◽  
Elhassan Amaterz

Herein, we report the design of a cost-effective catalyst with excellent recyclability, simple recuperation and facile recovery, and the examination between the reaction cycles via the development of self-supporting g-C3N4 nanosheets/Ag NPs polyester fabric (PES) using a simple, facile and efficient approach. PES fabrics were coated via a sono-coating method with carbon nitride nanosheets (GCNN) along with an in situ setting of Ag nanoparticles on PES coated GCNN surface producing PES-GCNN/Ag0. The elaborated textile-based materials were fully characterized using FTIR, 13C NMR, XRD, TGA, SEM, EDX, etc. Catalytic performance of the designed “Dip-Catalyst” demonstrated that the as-prepared PES-GCCN/Ag0 has effectively catalyzed the hydrogenation of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP) in the presence of NaBH4. The 3 × 3 cm2 PES-GCNN/Ag0 showed the best catalytic activity, displaying an apparent rate constant (Kapp) equal to 0.43 min−1 and more than 10 reusability cycles, suggesting that the prepared catalyst-based PES fabric can be a strong nominee for sustainable chemical catalysis. Moreover, the coated fabrics exhibited appreciable antibacterial capacity against Staphylococcus epidermidis (S. epidermidis) and Escherichia coli (E. coli). The present study opens up new opportunities for the future design of a low cost and large-scale process of functional fabrics.


2021 ◽  
Author(s):  
Sahar Taheri ◽  
Majid M Heravi ◽  
Pourya Mohammadi

Abstract Green synthesis of a noble metal such as Ag nanoparticles is an enormously developed research area. In this study, biochar/Fe3O4-Ag magnetic nanocatalyst was produced via a green path by using Celery stalk as a carbon-based substrate, and Celery leaf extract as reducing and stabilizing agents to construct Ag nanoparticles. The synthesized nanocatalyst was determined using various techniques, such as UV-Vis, FT-IR spectroscopy, XRD (X-ray diffraction), SEM/EDX spectroscopy (scanning electron microscopy/energy-dispersive X-ray), TEM (transmission electron microscopy), and VSM (vibrating sample magnetometer). To survey the catalytic action of the biochar/Fe3O4-Ag nanocatalyst, it was used in the reduction reaction of disparate nitroaromatics, aldehydes, and ketones. This catalyst has demonstrated premier characteristics in terms of the amount, reusability, recoverability, activity, and structural integrity of the catalyst during the reaction. In addition, biochar/Fe3O4-Ag could be detached magnetically and recycled multiple times without significantly reducing its catalytic performance.


RSC Advances ◽  
2021 ◽  
Vol 11 (60) ◽  
pp. 37708-37712
Author(s):  
Wenyan Li ◽  
Xinying Lin ◽  
Jing Long ◽  
Bo Zheng ◽  
Zhaorui Pan ◽  
...  

Mesoporous core–shell structure Ag@SiO2 nanospheres are constructed to prevent Ag nanoparticles from aggregation during the hydrogenation reaction.


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