The Preparation and Characterization of Fe-ZnO Nanoparticles Immobilized onto Fiberglass Cloth

2020 ◽  
Vol 402 ◽  
pp. 115-124
Author(s):  
Muktarida Omar ◽  
Muhammad Adlim ◽  
Ilham Maulana ◽  
Suhendrayatna Suhendrayatna ◽  
Ismail Ismail
Keyword(s):  
Photocatalytic Decomposition ◽  
Precipitation Method ◽  
Precipitation Process ◽  
Tem Analysis ◽  
Characterization Methods ◽  
Zno Particles ◽  
Doped Zno ◽  
Co Precipitation ◽  
Fiberglass Cloth

Lousy odor is severe pollution in natural rubber processing industries and the air pollution treatment by using photocatalytic decomposition method has not much known. This study aims to explore the photocatalyst preparation and characterization of Fe doped ZnO immobilized on fiberglass cloth. Fe doped ZnO was prepared both with and without co-precipitation agent of NaOH. Both methods confirmed the metal existence and gave crystallite catalyst particles with mean diameters of 50 nm according to XRD characterization methods. SEM-EDS analysis showed Fe-ZnO particles prepared without co-precipitation were less aggregated particles than those made with the other method. EDS data identified the elemental composition of Zn, Fe, and O, and the fiberglass cloth composition, including Si and Mg. In the co-preparation method, sodium was always existed along with Fe and ZnO. DR-UV analysis showed the bandgap of Fe-ZnO was 3.20 and 3.22 eV without and with co-precipitation methods, respectively. TEM analysis of the catalyst slurry shows all particles were agglomerated in both preparations. Spherical-like particles existed non-precipitation method, and a spherical- and rod particle shapes were detected in co-precipitation preparation. The non-co-precipitation process was a preparable step in immobilization of the Fe-ZnO particles onto fiberglass cloth

scholarly journals Using Co-Precipitation Method Determining Synthesis and Characterization of Fe Doped Zinc Oxide Nanoparticles

2019 ◽  
Vol 8 (9S3) ◽  
pp. 705-707
Keyword(s):  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Room Temperature ◽  
Chemical Precipitation ◽  
Zinc Nitrate ◽  
Precipitation Method ◽  
Ferric Nitrate ◽  
Doped Zno ◽  
Co Precipitation

In through concoction co-precipitation strategy using ferric nitrate, zinc nitrate and sodium hydroxide in fluid arrangements, orchestrate and portrayal of Fe doped ZnO nanoparticles were prepared in the present work. X-beam diffraction has confirmed the growth of Fe doped ZnO from the precursor. This result has revealed that nanoparticles have integrated excellent crystalline forces in nature. SEM investigations show that ZnO nanoparticles have been doped by the round and minimally agglomerated Fe. Room temperature powerless ferromagnetism, distinctive in the appealing characteristics of Fe doped ZnO powderKeywords in relation to room temperature: zinc oxide, SEM, chemical precipitation, XRD, VSM

Characterization of Al2(WO4)3 Synthesized by Co-Precipitation Method

2014 ◽  
Vol 798-799 ◽  
pp. 85-89 ◽  
Author(s):  
E.S.G. Junior ◽  
P.M . Jardim
Keyword(s):  
Precipitation Method ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Tem Analysis ◽  
X Ray ◽  
Transmission Electron ◽  
Different Temperatures ◽  
Co Precipitation ◽  
Alpha Alumina

Al2(WO4)3was synthesized by co-precipitation using Na2WO4and Al (NO3)3as precursors. After drying the precipitate, it was calcined at different temperatures between 500°C and 800°C. The crystallization and degradation temperatures of the samples were evaluated by means of Differential Scanning Calorimetry (DSC), Thermogravimetry (TG) and X-Ray Diffraction (XRD). It was observed that the crystallization starts at around 600°C, however Transmission Electron Microscopy (TEM) analysis showed that at this temperature the sample is partially amorphous. The degradation of the material starts at around 1200°C and at 1400°C the tungsten oxide has almost completely evaporated and the material is transformed mainly in alpha-alumina.

scholarly journals Synthesis and Characterization of Photoluminescent Ce(III) and Ce(IV) Substituted Hydroxyapatite Nanomaterials by Co-Precipitation Method: Cytotoxicity and Biocompatibility Evaluation

Nanomaterials ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 1911
Author(s):  
Andrei Viorel Paduraru ◽  
Adina Magdalena Musuc ◽  
Ovidiu Cristian Oprea ◽  
Roxana Trusca ◽  
Florin Iordache ◽  
...  
Keyword(s):  
Biological Properties ◽  
Fluorescence Properties ◽  
Precipitation Method ◽  
Synthesis And Characterization ◽  
Tem Analysis ◽  
Xrd Diffraction ◽  
Vis Spectroscopy ◽  
Ftir Spectrometry ◽  
Co Precipitation

Improved compounds of Ce(III) and Ce(IV)-doped hydroxyapatite (Ca10-xCex(PO4)6(OH)2) with different concentrations such as x = 0.5, 1, 2.5, 5, and 10%, obtained by the simple co-precipitation method were synthesized. The cerium (3+) and cerium (4+)-doped hydroxyapatite were evaluated for biocompatibility and fluorescence properties. It was found that the cerium-HAp powders were non-toxic, even at higher level of concentration. The synthesized powders were further characterized by FTIR spectrometry, UV-Vis spectroscopy, XRD diffraction, SEM and TEM analysis. Therefore, the present study proves that the developed cerium (3+) and cerium (4+)-doped hydroxyapatite, respectively can be widely used as luminescent labeling materials, with improved biological properties.

SYNTHESIS AND CHARACTERIZATION OF Mn SUBSTITUTED ZnO NANOPARTICLES

2013 ◽  
Vol 12 (01) ◽  
pp. 1350004 ◽  
Author(s):  
V. D. MOTE ◽  
S. S. SHAH ◽  
B. N. DOLE ◽  
Y. PURUSHOTHAM
Keyword(s):  
Zno Nanoparticles ◽  
Magnetic Measurements ◽  
Average Diameter ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
Hexagonal Crystal ◽  
Tem Analysis ◽  
Co Precipitation ◽  
Mn Concentration

The aim of the work is to synthesize Mn substituted ZnO nanoparticles by co-precipitation method with chemical formula Zn 1-x Mn x O , where x = 0.00, 0.05, 0.10 and 0.15 and to characterize its structural, morphological and magnetic properties. X-ray diffraction studies confirm the presence of wurtzite (hexagonal) crystal structure for doped samples similar to un doped ZnO , indicating that doped Mn replacing Zn . Lattice parameters and unit cell volume were found to increase with increasing Mn concentration, indicating the homogeneous substitution of Mn2+ for Zn2+ . TEM analysis shows the average diameter of the nanoparticles in the range of 20–50 nm. Room temperature magnetic measurements indicate the existence of ferromagnetism in x = 0.00 and 0.05 nanoparticles and co-existence of ferro, para magnetism in x = 0.10 and 0.15 nanoparticles.

Synthesis and Characterization of Co-Doped ZnO Diluted Magnetic Semiconductor for Spintronics Application

2020 ◽  
Vol 12 (4) ◽  
pp. 524-529
Author(s):  
C. Thirupathi ◽  
S. Nithiyanantham ◽  
M. Sentilkumar ◽  
A. Arivudainambi ◽  
S. Mahalakshmi ◽  
...  
Keyword(s):  
Diluted Magnetic Semiconductor ◽  
Magnetic Semiconductor ◽  
Xrd Analysis ◽  
Precipitation Method ◽  
Ferromagnetic Exchange ◽  
Doped Zno ◽  
Diluted Magnetic ◽  
Co Precipitation ◽  
Co Doped

The diluted magnetic semiconductor (DMS), are promising materials in the ferromagnetic exchange coupling between localized spins. ZnO nanoparticles in pure and cobalt doped with 2%, 4%, 6% and 8% were prepared through co-precipitation method at room temperature. XRD analysis showed the Co doped ZnO crystalizes in a wurzite structure. The particle size decreases with increase in concentration of cobalt. The SEM micrographs shows similar and regular equal in size depends with the increase of Co concentration and formation of spherical super structure and confirmed the Co2+ is completely replaced into the Zn2+ site of ZnO host structure. The size depends with the concentration are evident from EDAX analysis. The remarkable spin performances with increase of Co are confirming the above results.

Exploring the characterization of Ni doped MgO nanoparticles using co-precipitation method

2020 ◽  
Vol 3 (1) ◽  
pp. 30-33
Author(s):  
Muthulakshmi M ◽  
Madhumitha G
Keyword(s):  
Magnesium Oxide ◽  
Analytical Techniques ◽  
Nickel Chloride ◽  
Precipitation Method ◽  
Crystalline Powder ◽  
High Melting Point ◽  
Design Synthesis ◽  
Mgo Nanoparticles ◽  
Co Precipitation

Nanotechnology is a field of applied science focused on design, synthesis and characterization of nanomaterials. The nickel and magnesium have improved their applications in transparent electrodes and nano electronics. In addition, magnesium oxide has moisture resistance and high melting point properties. In the present work has been carried out in the development of green crystalline powder of nickel doped magnesium oxide nanoparticles by Co-precipitation method, from the mixture of nickel chloride and magnesium chloride with KOH as solvent. From the XRD results, crystalline size of the particle can be observed. Spherical structure of Ni doped MgO nanoparticles were indicated by SEM results and powdered composition of samples were obtained from FTIR. EDAX represents the peak composition of the nanoparticle. The above analytical techniques have confirmed that the Ni doped MgO nanoparticles obtained from the mixture of NiCl2 and MgCl2.

Photocatalytic Activity of Fe-Doped ZnO/Montmorillonite Nanocomposite for Degradation of Malachite Green

2015 ◽  
Vol 827 ◽  
pp. 19-24 ◽  
Author(s):  
Nur Afifah ◽  
Nadia Febiana Djaja ◽  
Rosari Saleh
Keyword(s):  
Photocatalytic Activity ◽  
Malachite Green ◽  
Organic Dyes ◽  
Uv Light ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Spin Resonance ◽  
Doped Zno ◽  
Co Precipitation

In this study, the photocatalytic activity of pure Fe- doped ZnO and Fe- doped ZnO/Montmorillonite nanocomposite has been investigated for the degradation of malachite green under UV light irradiation. Both photocatalysts were synthesized using co-precipitation method and characterized by X-ray diffraction, energy dispersive X-ray spectroscopy, Fourier-transform infrared absorption, and electron spin resonance. The results showed that the photocatalytic efficiency is better in the presence of montmorillonite compared to pure Fe- doped ZnO. To detect the possible reactive species involved in degradation of organic dyes control experiments with introducing scavengers into the solution of organic dyes were carried out. It is found that electron plays an important role in the degradation of malachite green.

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