Tamarix gallica leaf extract mediated novel route for green synthesis of CuO nanoparticles and their application for N-arylation of nitrogen-containing heterocycles under ligand-free conditions

RSC Advances ◽  
2015 ◽  
Vol 5 (51) ◽  
pp. 40628-40635 ◽  
Author(s):  
Mahmoud Nasrollahzadeh ◽  
S. Mohammad Sajadi ◽  
Mehdi Maham

We report the green synthesis of CuO nanoparticles (CuO NPs) using Tamarix gallica leaf extract and their catalytic activity for N-arylation of nitrogen-containing heterocycles with aryl halides under ligand-free conditions.

2021 ◽  
Vol 20 (2) ◽  
pp. 1-6
Author(s):  
Fatma A. Shtewi ◽  
Wedad M. Al-Adiwish ◽  
Hamid A. Alqamoudy ◽  
Awatif A. Tarroush

Copper oxide nanoparticles are essential technology materials that are utilized as catalysts in the chemical industry, as well as in photonic and electronic devices and medical applications. Due to their applications in advanced technologies, we have concentrated on the production of CuO nanoparticles using enhanced, cost-effective, and environmentally friendly synthetic techniques. In this paper, we have presented a green synthesis technique to successfully synthesis copper oxide nanoparticles (CuO NPs) utilizing copper (II) sulfate pentahydrate (CuSO4.5H2O) as precursor salt and Mentha Piperita leaf extract as a reducing and stabilizing agent during the synthesis process. The precursor salt solution and reducing agent were mixed in a 1:1 volume ratio at 50 °C. The CuO NPs synthesized were confirmed by the characteristics Surface Plasmon Resonance (SPR) peak in the UV-visible region. Also, the optical direct band gap energy of the CuO NPs determined from the Tauc plot was 3.26 eV. The FTIR spectrum analysis confirmed existence of functional groups of polyphenols from Mentha piperita L. leaf extract, which are responsible for the reduction of Cu2+ ions and effective stabilization of CuO NPs. All the peaks observed in the XRD pattern revealed the production of CuO NPs having monoclinic structure with an average crystallite size of 42.51 nm. The surface morphology of the CuO nanoparticles was detected using SEM analysis. Further, the synthesis mechanism of CuO NPs has also been investigated.


Author(s):  
Hang Xu ◽  
Sho Yamaguchi ◽  
Takato Mitsudome ◽  
Tomoo Mizugaki

Copper nitride (Cu3N) was used as a heterogeneous catalyst for the hydroxylation of aryl halides under ligand-free conditions. The cubic Cu3N nanoparticles showed high catalytic activity, comparable to those of...


2017 ◽  
Vol 184 ◽  
pp. 298-307 ◽  
Author(s):  
Mahboobe Maryami ◽  
Mahmoud Nasrollahzadeh ◽  
Ebrahim mehdipour ◽  
S. Mohammad Sajadi

2015 ◽  
Vol 38 (3) ◽  
pp. 231-234 ◽  
Author(s):  
Pradip K. Gogoi ◽  
Tahshina Begum ◽  
Bitupon Borthakur ◽  
Gitashree Das ◽  
Utpal Bora ◽  
...  

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