scholarly journals Influence of Nanosized Silicon Oxide on the Luminescent Properties of ZnO Nanoparticles

2016 ◽  
Vol 2016 ◽  
pp. 1-7 ◽  
Author(s):  
Vitaliy Shvalagin ◽  
Galyna Grodziuk ◽  
Olha Sarapulova ◽  
Misha Kurmach ◽  
Vasyl Granchak ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Luminescence Intensity ◽  
Zinc Oxide Nanoparticles ◽  
Food Packaging ◽  
Silicon Oxide ◽  
Luminescent Properties ◽  
Colloidal Synthesis ◽  
Quantum Yields ◽  
Oxide Nanoparticles

For practical use of nanosized zinc oxide as the phosphor its luminescence quantum yields should be maximized. The aim of this work was to enhance luminescent properties of ZnO nanoparticles and obtain high-luminescent ZnO/SiO2composites using simpler approaches to colloidal synthesis. The luminescence intensity of zinc oxide nanoparticles was increased about 3 times by addition of silica nanocrystals to the source solutions during the synthesis of ZnO nanoparticles. Then the quantum yield of luminescence of the obtained ZnO/SiO2composites is more than 30%. Such an impact of silica is suggested to be caused by the distribution of ZnO nanocrystals on the surface of silica, which reduces the probability of separation of photogenerated charges between the zinc oxide nanoparticles of different sizes, and as a consequence, there is a significant increase of the luminescence intensity of ZnO nanoparticles. This way of increasing nano-ZnO luminescence intensity facilitates its use in a variety of devices, including optical ultraviolet and visible screens, luminescent markers, antibacterial coatings, luminescent solar concentrators, luminescent inks for security printing, and food packaging with abilities of informing consumers about the quality and safety of the packaged product.

scholarly journals Retracted Article: ZnO nanoparticles affect intestinal function in anin vitromodel

2018 ◽  
Vol 9 (3) ◽  
pp. 1475-1491 ◽  
Author(s):  
Fabiola Moreno-Olivas ◽  
Elad Tako ◽  
Gretchen J. Mahler
Keyword(s):  
At Risk ◽  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Food Packaging ◽  
Oxide Nanoparticles ◽  
Intestinal Function ◽  
Retracted Article

Zinc oxide nanoparticles (ZnO NP) may be present in food packaging, which would put consumers at risk of NP ingestion.

Microbiote shift in sequencing batch reactors in response to antimicrobial ZnO nanoparticles

RSC Advances ◽  
2016 ◽  
Vol 6 (111) ◽  
pp. 110108-110111 ◽  
Author(s):  
Zhenghui Liu ◽  
Huifang Zhou ◽  
Jiefeng Liu ◽  
Xudong Yin ◽  
Yufeng Mao ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Wastewater Treatment ◽  
Adverse Effects ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Wastewater Treatment Plants ◽  
Oxide Nanoparticles ◽  
Batch Reactors ◽  
Sequencing Batch Reactors ◽  
Zno Nps

Zinc oxide nanoparticles (ZnO NPs) have been monitored in wastewater treatment plants as their potential adverse effects on functional microorganisms have been causing increasing concern.

Raspberry-like morphology of polyvinyl chloride/zinc oxide nanoparticles induced by surface interaction and formation of nanoporous foam

RSC Advances ◽  
2015 ◽  
Vol 5 (46) ◽  
pp. 36845-36857 ◽  
Author(s):  
Tingting Ren ◽  
Jie Wang ◽  
Jinfeng Yuan ◽  
Mingwang Pan ◽  
Gang Liu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Polyvinyl Chloride ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Surface Interaction ◽  
Oxide Nanoparticles ◽  
Nano Coating ◽  
Coating Method

P(VC-co-AAEM)/ZnO nanoparticles are prepared by a nano-coating method, and the morphology of the raspberry-like particles is adjusted by hydrophilicity and NaOH concentration.

Zinc Oxide Nanoparticles for Food Packaging Applications

2016 ◽  
pp. 425-431 ◽  
Author(s):  
P.J.P. Espitia ◽  
C.G. Otoni ◽  
N.F.F. Soares
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Food Packaging ◽  
Oxide Nanoparticles

Synthesis and Antimicrobial Properties of Zinc Oxide Nanoparticles

2020 ◽  
Vol 20 (10) ◽  
pp. 5977-5996 ◽  
Author(s):  
Saee Gharpure ◽  
Balaprasad Ankamwar
Keyword(s):  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Metal Oxide Nanoparticles ◽  
Antibacterial Properties ◽  
Antimicrobial Properties ◽  
Physical Contact ◽  
Oxide Nanoparticles ◽  
Synthesis Methods ◽  
Promising Alternative

With increase in incidence of multidrug resistant pathogens, there is a demand to adapt newer approaches in order to combat these diseases as traditional therapy is insufficient for their treatment. Use of nanotechnology provides a promising alternative as antimicrobial agents as against traditional antibiotics. Metal oxides have been exploited for a long times for their antimicrobial properties. Zinc oxide nanoparticles (ZnO NPs) are preferred over other metal oxide nanoparticles because of their bio-compatible nature and excellent antibacterial potentials. The basic mechanism of bactericidal nature of ZnO nanoparticles includes physical contact between ZnO nanoparticles and the bacterial cell wall, generation of reactive oxygen species (ROS) as well as free radicals and release of Zn2+ ions. This review focuses on different synthesis methods of ZnO nanoparticles, various analytical techniques frequently used for testing antibacterial properties, mechanism explaining antibacterial nature of ZnO nanoparticles as well as different factors affecting the antibacterial properties.

Synthesis of Zinc Oxide Nanoparticles Coated with Silicon Oxide

2020 ◽  
Vol 492 (1) ◽  
pp. 69-72
Author(s):  
V. V. Butova ◽  
V. A. Polyakov ◽  
E. A. Erofeeva ◽  
Zhengyou Li ◽  
M. A. Soldatov ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Silicon Oxide ◽  
Oxide Nanoparticles

Nonvolatile ternary resistive switching memory devices based on the polymer composites containing zinc oxide nanoparticles

2018 ◽  
Vol 20 (8) ◽  
pp. 5771-5779 ◽  
Author(s):  
Yanmei Sun ◽  
Dianzhong Wen ◽  
Xuduo Bai
Keyword(s):  
Zinc Oxide ◽  
Polymer Blends ◽  
Polymer Composites ◽  
Resistive Switching ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
Memory Devices ◽  
Resistive Switching Memory ◽  
Switching Memory

Nonvolatile ternary memory devices were fabricated from the composites polymer blends containing zinc oxide (ZnO) nanoparticles.

scholarly journals Phytosynthetic Ag doped ZnO nanoparticles: Semiconducting green remediators

2018 ◽  
Vol 16 (1) ◽  
pp. 556-570 ◽  
Author(s):  
Khuram Shahzad Ahmad ◽  
Shaan Bibi Jaffri
Keyword(s):  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Organic Dyes ◽  
Zinc Acetate Dihydrate ◽  
Polluted Water ◽  
Oxide Nanoparticles ◽  
Pseudo First Order Reaction ◽  
One Pot ◽  
Doped Zno

AbstractHighly stable semiconducting silver doped zinc oxide nanoparticles have been synthesized via facile, biomimetic and sustainable route, through utilization of Zinc acetate dihydrate (C4H6O4Zn · 2H2O) as host, Silver nitrate (AgNO3) as dopant and phytochemicals of angiospermic medicinal plant Prunus cerasifera as the reducing agents. Synthesis of Ag doped ZnO nanoparticles was done in a one pot synthetic mode by varying the amount of dopant from 0.2 – 2.0%. Synthesized photocatalyst nanoparticles were analyzed via UV-vis, FTIR, XRD and SEM. Commendable alleviation in the direct band gap i.e. 2.81 eV was achieved as a result of doping. Silver doped zinc oxide nanoparticles size ranged between 72.11 – 100 nm with rough surface morphology and higher polydispersity degree. The XRD patterns revealed the hexagonal wurtzite geometry of crystals with an average crystallite size of 2.99 nm. Persistent organic dyes Methyl Orange, Safranin O and Rhodamine B were sustainably photodegraded in direct solar irradiance with remarkable degradation percentages up to 81.76, 74.11 and 85.52% in limited time with pseudo first order reaction kinetics (R2 =0.99, 0.99 and 0.97). Furthermore, efficient inhibition against nine microbes of biomedical and agriculturally significance was achieved. Synthesized nanoparticles are potential green remediators of polluted water and perilous pathogens.

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