One-Pot Ultrafast Microwave-Assisted Synthesis of Copper and Copper Oxide Nanoparticles

2018 ◽  
Vol 18 (06) ◽  
pp. 1850034 ◽  
Author(s):  
Lionel Veiga ◽  
Octavio Garate ◽  
Paulina Lloret ◽  
Carlos Moina ◽  
Gabriel Ybarra
Keyword(s):  
Copper Oxide ◽  
Copper Nanoparticles ◽  
Cuprous Oxide ◽  
Copper Oxide Nanoparticles ◽  
Heating Time ◽  
Microwave Assisted Synthesis ◽  
Oxide Nanoparticles ◽  
One Pot ◽  
Rapid Preparation ◽  
Short Heating

A method of synthesis is presented for the rapid preparation of copper, copper oxide and mixed copper oxide-copper nanoparticles employing a conventional home microwave oven. The nanoparticles were characterized by SEM, XRD and UV-visible spectroscopy. The size and the composition of the nanoparticles were controlled by the heating time. Cuprous oxide nanoparticles were obtained at short heating times and copper nanoparticles at longer times, while mixed cuprous oxide-copper nanoparticles where obtained in an in between window of time.

Production of Antimicrobial Textiles by Using Copper Oxide Nanoparticles

2018 ◽  
Vol 9 (08) ◽  
pp. 20195-20202 ◽  
Author(s):  
Redwanul Hasan
Keyword(s):  
Antibacterial Activity ◽  
Copper Oxide ◽  
Copper Nanoparticles ◽  
Disease Transmission ◽  
Copper Oxide Nanoparticles ◽  
Sem Analysis ◽  
Woven Fabric ◽  
Noble Metal Nanoparticles ◽  
Oxide Nanoparticles ◽  
Antimicrobial Textiles

The application of nanoscale materials and structures, usually ranging from 1 to 100 nanometers (nm), is an emerging area of nanoscience and nanotechnology. Synthesis of noble metal nanoparticles for applications such as catalysis, electronics, textiles, environmental protection, and biotechnology is an area of constant interest. Recently, an awareness of general sanitation, contact disease transmission, and personal protection has led to the development of antimicrobial textiles. The development of antimicrobial cotton fabrics using Copper oxide nanoparticles has been investigated in this present work. The Copper nanoparticles were prepared by wet chemical method and were directly applied on to the 100% cotton woven fabric using pad-dry-cure method. The antibacterial activity of the finished fabrics was assessed qualitatively by agar diffusion and parallel streak method, quantitatively by percentage reduction test. The topographical analysis of the treated fabric and untreated fabric were studied and compared. The results show that the finished fabric demonstrated significant antibacterial activity against S. aureus in both qualitative and quantitative tests. The SEM analysis revealed the embedding of Copper nanoparticles in treated fabrics. The wash durability study of the treated fabric was also carried out and found to withstand up to 25 wash cycles.

scholarly journals Comparison of Biodistribution and Biocompatibility of Gelatin-Coated Copper Nanoparticles and Naked Copper Oxide Nanoparticles

2012 ◽  
Vol 10 ◽  
pp. 33-37 ◽  
Author(s):  
Shigeaki Abe ◽  
Nobuki Iwadera ◽  
Takashi Narushima ◽  
Yoshiki Uchida ◽  
Motohiro Uo ◽  
...  
Keyword(s):  
Copper Oxide ◽  
Copper Nanoparticles ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles

scholarly journals Studies on Adsorption of Congo red (Acid Red 28) Azodye by Nano Copperoxide

2018 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Copper Oxide ◽  
Copper Nanoparticles ◽  
Azo Dye ◽  
Dye Degradation ◽  
Uv Spectroscopy ◽  
Line Graph ◽  
Average Particle Size ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Average Particle

In this study, stable copper nanoparticles were synthesized by using Aloe barbadensis leaf extracts. The present study tracing of an object is a green synthesis of copper nanoparticles by the interaction of leaf extract and copper salt and its azo dye (congored) degradation efficiency. The characterization of copper oxide nanoparticles were performed by XRD, SEM, FTIR, UV spectroscopy. The XRD analysis showed that average particle size was between 5-30nm by scherrer equation. The shape of the copper nanoparticles was spherical and cubic. The EDX of synthesized nanoparticles confirmed copper content 68%. UV spectrophotometer analysis confirms peak of the copper nanoparticles between 200-400nm. The effect of variables like concentration, time, PH, adsorbent dosage also examined in this present study on % degradation of dye. It was noted that maximum dye removal occured at PH= 4, maximum concentration of adsorbent 1mg/l, maximum time for dye degradation 120 mint. The nanoparticles removed 70% of congored dye from solution at optimum condition of reaction parameters.The kinetics of pseudo second order is followed by adsorption process.The calculated sum of square .012 and r2 =.980 were analyzed. Langmuir isotherm model fit best and straight line graph drawned with r2 value .991 and probability 1.6E-5. This showed that copper oxide nanoparticles have efficient capacity of azo dye degradation.

scholarly journals Congo Red Azo Dye Removal and Study of Its Kinetics by Aloe Vera Mediated Copper Oxide Nanoparticles

2019 ◽  
Vol 19 (3) ◽  
pp. 626 ◽  
Author(s):  
Madiha Batool ◽  
Muhammad Zahid Qureshi ◽  
Farwa Hashmi ◽  
Nida Mehboob ◽  
Abdul Salam Shah
Keyword(s):  
Copper Oxide ◽  
Copper Nanoparticles ◽  
Congo Red ◽  
Dye Removal ◽  
Aloe Vera ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Time Interval ◽  
Efficient Removal ◽  
Environment Friendly

Nanotechnology is generating interest of researchers toward cost-free and environment-friendly biosynthesis of nanoparticles. In this research, biosynthesis of stable copper nanoparticles has been done by using aloe vera leaves extract which has been prepared in de-ionized water. The aim of this study is the tracing of an object by green synthesis of copper oxide nanoparticles with the interaction of leaves extract and copper salt and its dye removal efficiency. The results have confirmed the efficient removal of Congo red (CR) dye using copper oxide nanoparticles. Furthermore, we have examined the effect of variables like concentration, time, pH, and adsorbent dosage. We have observed maximum 1.1 mg/g dye removal at 10 min time interval, pH 2, and 5 mg/g nanoparticles. The shape of the copper nanoparticles was spherical, and their range of grain was 80–120 nm. The EDX of synthesized nanoparticles showed copper 38% and 65% oxygen. UV spectrophotometer analysis confirms peak of the copper nanoparticles between 200–600 nm.

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