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 SYNTHESIS AND CHARACTERIZATION OF COPPER OXIDE NANOPARTICLES USING AQUEOUS EXTRACT OF IRANIAN VIOLACEAE FLOWER

2021 ◽  
Vol 15 (3) ◽  
Author(s):  
Ali Davari ◽  
Vahid Hakimzadeh ◽  
Elham Mahdian ◽  
Mostafa Shahidi-Noghabi
Keyword(s):  
Copper Oxide ◽  
Ftir Spectroscopy ◽  
Average Particle Size ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Average Particle ◽  
Stabilizing Agents ◽  
Cuo Nps ◽  
Wide Range ◽  
Uv Visible

In this work, we have synthesized copper oxide nanoparticles using Iranian violaceae flower extract and explored its biological activity. Green synthesis has emerged as a reliable, sustainable and ecofriendly protocol for synthesizing a wide range of nanomaterials and hybrid materials. In this paper, we report the synthesis of Copper oxide nanoparticles by a simple biological route using the extract of Iranian violaceae flower and CuSO4, 5 H2O was used to synthesis the copper oxide Nanoparticles. The synthesized copper oxide nanoparticles were characterized using UV–visible spectroscopy, FTIR spectroscopy, FESEM, EDAX, and XRD techniques. UV –Visible analysis shows a characteristic peak around 266 nm for copper oxide nanoparticles and which is characteristic copper oxide nanoparticles. FTIR spectroscopy was used to characterize various capping and reducing agents present in the plant extract responsible for nanoparticle formation. The surface morphology was characterized using FESEM. The EDAX and XRD pattern suggested that prepared copper oxide nanoparticles were highly pure. The average particle size was calculated as 78.5 nm and α-copper oxide for all diffraction peaks (JCPDS card No. 41-1449) using the XRD technique. Our finding also support the synthesis of CuO NPs from Iranian violaceae flower sources due to relative abundance of plants for the production of reducing and stabilizing agents required for CuO NPs synthesis, potential efficiency of plant biomolecules in enhancing the toxicity effect of CuO NPs against microbes, prevention of environmental pollution due of nontoxic chemicals and degradation effectiveness of CuO NPs synthesized from plant sources. Furthermore, this study provides useful information on the rapid synthesis of CuO NPs with desired properties from plant extracts. Copper oxide NPs can have a good candidate for different applications.

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 Multifunctional CuO Nanoparticles with enhanced photocatalytic dye degradation and antibacterial activity

2021 ◽  
Author(s):  
Kanika Dulta ◽  
Gözde Koşarsoy Ağçeli ◽  
Parveen Chauhan ◽  
Rohit Jasrotia ◽  
Gourav Chandan ◽  
...  
Keyword(s):  
Dye Degradation ◽  
Organic Pollutant ◽  
Average Particle Size ◽  
Ultra Violet ◽  
Xrd Analysis ◽  
Copper Oxide Nanoparticles ◽  
Cuo Nanoparticles ◽  
Average Particle ◽  
X Ray ◽  
Cuo Nps

Abstract Rhizome extract of Bergenia ciliata was used as a bio-functional reducing material for green synthesis of copper oxide nanoparticles (CuO NPs). CuO NPs were characterized using ultra violet–visible spectroscopy (UV–vis), fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), dynamic light scattering (DLS), scanning electron microscopy (SEM) and energy-dispersive X-ray analysis (EDX). XRD analysis revealed the monoclinic phase of synthesized CuO NPs with average particle size of 20 nm. Spherical shaped nanoscale CuO particles were observed by EDX and SEM confirming the Cu and O presence in the synthesized nanoparticles. CuO nanoparticles showed antibacterial effects against all bacteria used in the study. The antioxidant effect was measured and IC50 values for ABTS, DPPH and FRAP assays were found to be 91.2, 72.4 and 109.0 µg/ mL− 1 respectively. Under sunlight, the CuO NPs reported extraordinary photocatalytic activity against methylene blue and methyl red degradation with efficiencies of 92 and 85 percent, respectively. CuO NPs have excellent potential application for the photocatalytic degradation of organic pollutant and in the development of antibacterial materials and for the first-time effect of these nanoparticles were reported.

scholarly journals Adsorption of Congo Red (Acid Red 28) Azodye on Biosynthesized Copper Oxide Nanoparticles

2019 ◽  
Vol 31 (3) ◽  
pp. 707-713 ◽  
Author(s):  
Madiha Batool ◽  
Muhammad Zahid Qureshi ◽  
Farwa Hashmi ◽  
Nida Mehboob ◽  
Walid M. Daoush
Keyword(s):  
Copper Oxide ◽  
Congo Red ◽  
Leaf Extract ◽  
Dye Removal ◽  
Copper Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Average Particle ◽  
Aloe Barbadensis ◽  
Congo Red Dye ◽  
Red Dye

A green synthesis of copper oxide nanoparticles and its removal efficiency of azodye were studied. Biosynthesis of stable copper oxide nanoparticles were preformed using Aloe barbadensis leaf extract as a size and shape-directing agent for preparing of spherical copper oxide nanoparticles by calcination at 400 °C. The leaf extract of Aloe barbadensis was prepared in deionized water. The produced copper particles were calcined at 400 °C to produce copper oxide nanoparticles. The characterization of copper oxide nanoparticles was performed by XRD, SEM, FTIR, UV spectroscopy. The XRD analysis showed that the average particle size was between 5-30 nm. The shape of the copper oxide nanoparticles was spherical and cubic. EDX of the synthesized nanoparticles showed the composition consists of 68 % copper. The UV-visible spectrum analysis confirms an absorption peak at 200-400 nm of the produced CuO nanoparticles. The FTIR analysis of the copper oxide particles indicate the presence of the organometallic Cu-O bond between Cu and O. The obtained copper oxide was used as a removing agent of Congo red dye. The effect of variables like concentration, time, pH, adsorbent dosage were studied. It was observed from the results that the maximum dye removal occurs at pH of 4, the concentration of nanoparticles was 1 mg/L and the maximum time for dye removal was 120 min. The Langmuir isotherm model was calculated to study the adsorption efficiency of the Congo red dye on the produced copper oxide nanoparticles. The kinetics of pseudo second order is followed by adsorption. The calculated sum of square was 0.012 and r2 = 0.98. it was observed that the model fit the best and straight line with r2 value of 0.991 and probability value of 1.6E-5. The nanoparticles remove 70 % of the Congo red dye from its solution. This showed that the copper oxide nanoparticles has efficient capacity of azodye degradation.

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
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