Design and synthesis of magnetic Fe₃O₄@NFC-ImSalophCu nanocatalyst based on cellulose nanofibers as a new and highly efficient, reusable, stable and green catalyst for the synthesis of 1,2,3-triazoles

Abstract

A new and efficient method has been developed for click chemistry reactions using a bifunctional Fe3O4@NFC-ImSalophCu catalyst with part imidazolium under moderate conditions.

Synthesis, characterization and cytotoxicity evaluation of a novel magnetic nanocomposite with iron oxide deposited on cellulose nanofibers with nickel (Fe3O4@NFC@ONSM-Ni)

“…While two peaks at 2q ¼ 16.77 and 20.71 corresponded to the (101) and (002) XRD pattern were conrmed to be related to cellulose. 40 Magnetic properties of different steps of the catalyst preparation were characterized by VSM. The magnetic curves are shown in Fig.…”

“…17,18 Recently, scientists have made a great effort to synthesize and regenerate of environmentallyfriendly nanoparticles by using biocompatible polymers which have unique features such as increasing colloidal stability, avoiding RES absorption of nanoparticles, and providing a surface for ligand composition like peptides 19 Cellulose due to its good biocompatibility, biological degradation, and non-toxicity is considered as one of the most important natural renewable polymers, which can be used as a promising organic material for magnetic nanoparticles. 20 Multi component reactions (MCRs) have become a promising tool for rapid preparation of compound libraries of small molecules. They are a valuable, efficient, time-saving, atomeconomic, and environmentally friendly resource.…”

The anchoring of a Cu(ii)–salophen complex on magnetic mesoporous cellulose nanofibers: green synthesis and an investigation of its catalytic role in tetrazole reactions through a facile one-pot route

“…Catalyst recovery is considered necessary from various perspectives, such as environmental and commercial concerns. 55,56 Therefore, the reusability of the (Fe 3 O 4 @-NFC@NSalophCu)CO 2 H nanocatalyst was studied under the optimized conditions using the tetrazole model reaction. To investigate the stability of the nanocatalyst, aer the rst cycle, (Fe 3 O 4 @NFC@NSalophCu)CO 2 H was separated from the reaction mixture using a permanent magnet, washed with hot ethanol, and dried at 60 C under vacuum.…”

“…NFC was synthesized via a sol-gel method as reported earlier by us [57][58][59]. The Fe 3 O 4 @NFC product (1 g) was sonicated in 15 mL of dry toluene for 30 min, and then (3-aminopropyl) triethoxysilane (APTES, 1.0 mmol) was added slowly to the mixture.…”

Biosynthesis of Organic Nanocomposite Using Pistacia vera L. Hull: An Efficient Antimicrobial Agent

“…e use of nanoparticles as an antimicrobial in medicine is particularly important because their surface-to-volume ratios are high and therefore highly sensitive. Among metallic nanoparticles, copper metal has received considerable attention because of its low cost compared to gold and silver [14][15][16]. It seems that the mechanism of action of antibacterial effect of copper nanoparticles is the release of Cu 2+ from these nanoparticles that due to having a positive charge, they absorb the negative charge of lipoproteins in the bacterial cell wall and enter the cell, damaging its cell wall or causing changes in its enzymatic function and causing holes in the cell wall.…”