Synthesis of Zno Nanoparticles by Thermal Decomposition of Basic Zinc Carbonate

2013 ◽  
Vol 58 (2) ◽  
pp. 489-491 ◽  
Author(s):  
B. Hutera ◽  
A. Kmita ◽  
E. Olejnik ◽  
T. Tokarski
Keyword(s):  
Thermal Decomposition ◽  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Xrd Analysis ◽  
Scanning Microscopy ◽  
Zinc Carbonate

The paper presents a method for obtaining nanoparticles of ZnO by thermal decomposition of the Zn-containing compounds. The experiment was based on the thermal decomposition of basic zinc carbonate to zinc oxide (with a content of 58-61 wt.%). Basic zinc carbonate was analysed by derivatography and then annealed at a selected temperature (about 600ºC) for about 1 h. Products of thermal decomposition of the compound were studied by XRD analysis and SEM scanning microscopy.

scholarly journals Zinc oxide nanoparticles prepared by thermal decomposition of zinc benzenepolycarboxylato precursors: Photoluminescent, photocatalytic and antimicrobial properties

2020 ◽  
Vol 85 (11) ◽  
pp. 1475-1488
Author(s):  
Lidija Radovanovic ◽  
Jelena Zdravkovic ◽  
Bojana Simovic ◽  
Zeljko Radovanovic ◽  
Katarina Mihajlovski ◽  
...  
Keyword(s):  
Thermal Decomposition ◽  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Diffuse Reflectance Spectroscopy ◽  
Antimicrobial Properties ◽  
Average Crystallite Size ◽  
Hexagonal Wurtzite Structure ◽  
Inhibitory Effect ◽  
Reactive Orange 16 ◽  
Air Atmosphere

Zinc oxide (ZnO) nanoparticles were obtained by thermal decomposition of one-dimensional zinc?benzenepolycarboxylato complexes as single- -source precursors at 450 ?C in an air atmosphere. The mechanism and kinetics of thermal degradation of zinc?benzenepolycarboxylato complexes were analyzed under non-isothermal conditions in an air atmosphere. The results of X-ray powder diffraction and field emission scanning electron microscopy revealed hexagonal wurtzite structure of ZnO with an average crystallite size in the range of 39?47 nm and similar morphology. The band gap and the specific surface area of ZnO nanoparticles were determined using UV?Vis diffuse reflectance spectroscopy and the Brunauer, Emmett and Teller method, respectively. The photoluminescent, photocatalytic and antimicrobial properties of the ZnO nanoparticles were also examined. The best photocatalytic activity in the degradation of C. I. Reactive Orange 16 dye was observed for the ZnO powder where the crystallites form the smallest agglomerates. All ZnO nanoparticles showed excellent inhibitory effect against Gram-positive bacterium Staphylococcus aureus and Gram-negative bacterium Escherichia coli.

Preparation of ZnO Powder from Clinker Digestion Solution of Zinc Oxide Ore

2014 ◽  
Vol 1004-1005 ◽  
pp. 665-669
Author(s):  
Hong Mei Shao ◽  
Xiao Yi Shen ◽  
Zhi Meng Wang ◽  
Yu Chun Zhai
Keyword(s):  
Thermal Decomposition ◽  
Zinc Oxide ◽  
Reaction Temperature ◽  
Narrow Range ◽  
Hexagonal Structure ◽  
Spherical Particles ◽  
Zinc Carbonate ◽  
Digestion Solution ◽  
Zno Powders ◽  
Zno Powder

The ZnO powder was successfully obtained by calcining the basic zinc carbonate, which was synthesized from clinker digestion solution of zinc oxide ore using analytical Na2CO3. The factors of mol ratio of Na2CO3to ZnSO4and reaction temperature were discussed at stirring intensity 400 rpm. Both the obtained basic zinc carbonate and ZnO powders were characterized using XRD, EDS and SEM. The thermal decomposition of basic zinc carbonate was also investigated below 600°C. The results show that the ZnO powder was wurzite hexagonal structure and the well-crystallized ZnO powder was uniformly spherical particles and distributed in a narrow range.

Facile synthesis of zinc carbonate and zinc oxide nanoparticles via direct carbonation and thermal decomposition

2013 ◽  
Vol 39 (1) ◽  
pp. 819-827 ◽  
Author(s):  
Mojtaba Shamsipur ◽  
Seied Mahdi Pourmortazavi ◽  
Seiedeh Somayyeh Hajimirsadeghi ◽  
Mir Mahdi Zahedi ◽  
Mehdi Rahimi-Nasrabadi
Keyword(s):  
Thermal Decomposition ◽  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Facile Synthesis ◽  
Zinc Carbonate

Synthesis and Characterization of Zinc Oxide Nanoparticles via Self-Combustion Technique

2014 ◽  
Vol 493 ◽  
pp. 609-614 ◽  
Author(s):  
Poppy Puspitasari ◽  
Andoko ◽  
Eddy Sutadji
Keyword(s):  
Zinc Oxide ◽  
Ethylene Glycol ◽  
Single Crystal ◽  
Zno Nanoparticles ◽  
Average Diameter ◽  
Xrd Analysis ◽  
Hexagonal Structure ◽  
Raman Shift ◽  
Before And After ◽  
Combustion Technique

Zinc oxide (ZnO) is a unique material which has been used in many researches. However synthesizing nanosize ZnO remains a challenge. This deal with the preparation of ZnO nanoparticles was synthesized by a self-combustion technique. In the self-combustion technique, nanoparticles was obtained by heating the materials until the mixture combusts at 110°C. ZnO nanoparticles were synthesized from Zn (NO3)2.6H2O precursor observed in two different solvent. The first set of experiment involved dissolving Zn (NO3)2.6H2O in nitric acid (HNO3) and adding ZnO, whereas for the second Ethylene Glycol (C2H6O2) was used as the solvent. The material was stirred at 250 r.p.m continuously for 1 month and 3 days. The mixture was then heated up until it combusted at 110°C. Samples were then annealed at 400°C for 1 hour . The ZnO samples were characterized using X-Ray Diffraction (XRD), Raman Spectroscopy, and Field Emission Scanning Electron Microscope (FESEM). The XRD analysis showed major peak at 20-30 of 2 theta scale with [10, [00, and [10 plane of the wurtzite hexagonal structure for both sets of ZnO samples. Samples were observed at raman shift for 138 and 439 cm-1and 141 and 443 cm-1before and after annealing. Synthesized ZnO 1 resulted the morphology of single crystal nanorods with average dimensions of 18 nm wide and 154 nm long. ZnO 2 has obtained the morphology of single crystal nanosphere with average diameter of 30 nm.Keywords:Zinc Oxide, Ethylene Glycol, Self-Combustion Technique

scholarly journals Zinc oxide nanoparticles using plant Lawsonia inermis and their mosquitocidal, antimicrobial, anticancer applications showing moderate side effects

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Pandiyan Amuthavalli ◽  
Jiang-Shiou Hwang ◽  
Hans-Uwe Dahms ◽  
Lan Wang ◽  
Jagannathan Anitha ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Mosquito Control ◽  
Xrd Analysis ◽  
Microbial Pathogens ◽  
Oxide Nanoparticles ◽  
Lawsonia Inermis ◽  
Zno Nps ◽  
Vector Borne Diseases ◽  
Substantial Problem

AbstractMicrobes or parasites spread vector-borne diseases by mosquitoes without being affected themselves. Insecticides used in vector control produce a substantial problem for human health. This study synthesized zinc oxide nanoparticles (ZnO NPs) using Lawsonia inermis L. and were characterized by UV–vis, FT-IR, SEM with EDX, and XRD analysis. Green synthesized ZnO NPs were highly toxic against Anopheles stephensi, whose lethal concentrations values ranged from 5.494 ppm (I instar), 6.801 ppm (II instar), 9.336 ppm (III instar), 10.736 ppm (IV instar), and 12.710 ppm (pupae) in contrast to L. inermis treatment. The predation efficiency of the teleost fish Gambusia affinis and the copepod Mesocyclops aspericornis against A. stephensi was not affected by exposure at sublethal doses of ZnO NPs. The predatory potency for G. affinis was 45 (I) and 25.83% (IV), copepod M. aspericornis was 40.66 (I) and 10.8% (IV) while in an ZnO NPs contaminated environment, the predation by the fish G. affinis was boosted to 71.33 and 34.25%, and predation of the copepod M. aspericornis was 60.35 and 16.75%, respectively. ZnO NPs inhibited the growth of several microbial pathogens including the bacteria (Escherichia coli and Bacillus subtilis) and the fungi (Alternaria alternate and Aspergillus flavus), respectively. ZnO NPs decreased the cell viability of Hep-G2 with IC50 value of 21.63 µg/mL (R2 = 0.942; P < 0.001) while the concentration increased from 1.88 to 30 µg/mL. These outcomes support the use of L. inermis mediated ZnO NPs for mosquito control and drug development.

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