Fluorescence Properties of Tb-Doped ZnO Porous Network Thin Film Grown on Monocrystalline Silicon Substrate

2018 ◽  
Vol 934 ◽  
pp. 3-7
Author(s):  
Leonid A. Butusov ◽  
Galina K. Chudinova ◽  
Margarita V. Kochneva ◽  
Vladimir V. Kurilkin ◽  
Tatyana F. Sheshko ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Significant Contribution ◽  
Nanostructured Material ◽  
Optical Biosensors ◽  
Porous Network ◽  
Green Phosphor ◽  
Fluorescent Response ◽  
Doped Zno ◽  
New Perspective

This research presents a new perspective on optical biosensors based on zinc oxide nanoparticles. The widely known and successfully applied nanostructured material is modified by the dopant - the green phosphor Terbium, which embedded in the structure of zinc oxide and makes a significant contribution to the fluorescent response of the material in both the UV and visible spectral regions. The effect of various dopant concentrations on the fluorescence of nanostructures was studied; the nanostructures were examined by SEM.

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.

scholarly journals Synthesis of N-doped ZnO nanoparticles with cabbage morphology as a catalyst for the efficient photocatalytic degradation of methylene blue under UV and visible light

RSC Advances ◽  
2019 ◽  
Vol 9 (13) ◽  
pp. 7509-7535 ◽  
Author(s):  
Eswaran Prabakaran ◽  
Kriveshini Pillay
Keyword(s):  
Methylene Blue ◽  
Zinc Oxide ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Zinc Acetate Dihydrate ◽  
Oxide Nanoparticles ◽  
Acetate Dihydrate ◽  
Hydrazine Monohydrate ◽  
Nitrogen Doped ◽  
Doped Zno

In this study, the synthesis of nitrogen-doped zinc oxide nanoparticles with a cabbage like morphology (N-ZnONCBs) by a hydrothermal method using zinc acetate dihydrate as a precursor and hydrazine monohydrate as a nitrogen source is reported.

Synthesis and Characterization of Onion Mediated Silver Doped Zinc Oxide Nanoparticles

2018 ◽  
pp. 111-120 ◽  
Author(s):  
N. Tensingh Baliah ◽  
Muthulakshmi P. ◽  
S. Lega Priyatharsini
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Good Alternative ◽  
Oxide Nanoparticles ◽  
Zno Nps ◽  
X Ray ◽  
Synthesis Of Nanoparticles ◽  
Onion Extract ◽  
Operation Conditions ◽  
Doped Zno

Green synthesis of nanoparticles has attracted considerable attention in recent years. In this regard, plants extracts and natural resources such as microorganisms and enzymes have been found to be good alternative reagents in nanoparticles synthesis. Utilizing green substances has several advantages including low energy consumption and moderate operation conditions without using any toxic chemicals. An attempt was made to synthesis and characterizes the silver doped zinc oxide nanoparticles (Ag doped ZnO NPs) by using onion extract. The synthesized Ag doped ZnO NPs were characterized by Scanning Electron Microscopy (SEM), Energy Dispersive X-ray Spectroscopy Analysis (EDAX), Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction (XRD) and Zeta potential analyses. These characterizations revealed that doped nanoparticles are differed in their structural properties. The onion extract was used as reducing agent as well as stabilizer. The phytochemicals found in the onion extract were responsible for the formation of Ag doped ZnO NPs.

Synthesis of samarium-doped zinc oxide nanoparticles with improved photocatalytic performance and recyclability under visible light irradiation

2018 ◽  
Vol 42 (3) ◽  
pp. 2295-2305 ◽  
Author(s):  
Mohd Faraz ◽  
Faria K. Naqvi ◽  
Mohammad Shakir ◽  
Neeraj Khare
Keyword(s):  
Zinc Oxide ◽  
Visible Light ◽  
Visible Light Irradiation ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Photocatalytic Performance ◽  
Oxide Nanoparticles ◽  
Gel Combustion ◽  
Combustion Route ◽  
Doped Zno

Samarium-doped ZnO nanoparticles (1%, 3%, and 5%) were synthesized by a gel-combustion route and their application as an efficient photocatalyst for the degradation of Malachite green (MG) dye is demonstrated.

scholarly journals EFFECT OF CE3+ METAL IONS ON THE ANTIBACTERIAL AND ANTICANCER ACTIVITY OF ZINC OXIDE NANOPARTICLES PREPARED BY COPRECIPITATION METHOD

2017 ◽  
Vol 10 (3) ◽  
pp. 388 ◽  
Author(s):  
Theivarasu C ◽  
Indumathi Thangavelu
Keyword(s):  
Zinc Oxide ◽  
Anticancer Activity ◽  
Zinc Oxide Nanoparticles ◽  
Human Lung ◽  
Human Lung Cancer ◽  
Oxide Nanoparticles ◽  
Lung Cancer Cell ◽  
Zno Nps ◽  
Doped Zno ◽  
Antibacterial And Anticancer Activity

ABSTRACTObjective: This study was undertaken to know about the antibacterial and anticancer activity of synthesized zinc oxide (ZnO) nanoparticles (NPs).Methods: The ZnO NPs and different concentration of Ce3+ (0.05M, 0.10M, and 0.15M)-doped ZnO NPs were synthesized by coprecipitation method.The synthesized nanoparticles were analyzed by X-ray diffraction (XRD) and HRSEM. The antibacterial studies were performed against a set ofbacterial strains as Gram-positive bacteria (Streptococcus aureus and Streptococcus pneumonia) and Gram-negative (Escherichia coli, Pseudomonasaeruginosa, Proteus vulgaris, Klebsiella pneumonia, and Shigella dysenteriae) bacteria. The cytotoxic effect of ZnO and Ce-doped ZnO was analyzed incultured (A549) human lung cancer cell line.Result: The XRD studies showed the wurtzite structure of nanoparticles. HRSEM analysis showed the spherical shape of ZnO and Ce-doped ZnO. TheZn0.85Ce0.15O NPs possessed more antibacterial effect as compared to the other ZnO and Ce-doped ZnO NPs. The Zn0.90Ce0.10O NPs created the highestcytotoxicity activity. With respect to cell death, as low a concentration of 68±0.05 μg/ml of Zn0.90Ce0.10O NPs was good enough to cause loss of viabilityof 50% of the cell as compared to ZnO and Zn1-xCexO (x=0.05 and 0.15) NPs.Conclusion: Results from this work concluded that Zn0.85Ce0.15O and Zn0.90Ce0.10O NPs possess antibacterial and anticancer activity, respectively.Keywords: Zinc oxide nanoparticles, Coprecipitation method, Antibacterial activity and anticancer activity, Human lung cancer cell line.

scholarly journals Hazardous o-toluidine mineralization by photocatalytic bismuth doped ZnO slurries

2015 ◽  
Vol 51 (52) ◽  
pp. 10459-10462 ◽  
Author(s):  
G. Cappelletti ◽  
V. Pifferi ◽  
S. Mostoni ◽  
L. Falciola ◽  
C. Di Bari ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Zinc Oxide Nanoparticles ◽  
Aqueous Media ◽  
Solar Irradiation ◽  
Oxide Nanoparticles ◽  
Doped Zno

Photocatalytic mineralization of o-toluidine in aqueous media under UV/solar irradiation was achieved by bare and bismuth doped zinc oxide nanoparticles.

Aluminum-doped zinc oxide nanoparticles with tunable near-infrared absorption/reflectance by a simple solvothermal process

RSC Advances ◽  
2014 ◽  
Vol 4 (81) ◽  
pp. 42758-42763 ◽  
Author(s):  
Haifeng Zhou ◽  
Hua Wang ◽  
Kang Zheng ◽  
Zhen Gu ◽  
Zhaofeng Wu ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Infrared Absorption ◽  
Zno Nanoparticles ◽  
Zinc Oxide Nanoparticles ◽  
Near Infrared ◽  
Oxide Nanoparticles ◽  
Solvothermal Process ◽  
Nir Absorption ◽  
Aluminum Doped Zinc Oxide ◽  
Doped Zno

Aluminum-doped ZnO nanoparticles with tunable NIR absorption.

scholarly journals Study of structural, optical and magnetic properties of cobalt doped ZnO nanorods

RSC Advances ◽  
2017 ◽  
Vol 7 (80) ◽  
pp. 50527-50536 ◽  
Author(s):  
Anupama Chanda ◽  
Shipra Gupta ◽  
M. Vasundhara ◽  
Shalik R. Joshi ◽  
Geeta R. Mutta ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Magnetic Properties ◽  
Zinc Oxide Nanoparticles ◽  
Chemical Method ◽  
Zno Nanorods ◽  
Oxide Nanoparticles ◽  
Simple Chemical ◽  
Optical And Magnetic Properties ◽  
Doped Zno

Cobalt doped zinc oxide nanoparticles (NPs) and nanorods (NRs) were synthesized by a simple chemical method.

Optical Characteristics of Zinc Oxide Nanoparticles with Surface Modification Using Polyethylene Glycol

2014 ◽  
Vol 29 (10) ◽  
pp. 1039
Author(s):  
TAN Man-Lin ◽  
WANG Yan-Tao ◽  
ZHANG Wei-Li ◽  
FU Dong-Ju ◽  
LI Dong-Shuang ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Surface Modification ◽  
Polyethylene Glycol ◽  
Zinc Oxide Nanoparticles ◽  
Optical Characteristics ◽  
Oxide Nanoparticles

A comparative study of the antibacterial activity of Quercus robur (Ethanolic extract) and Zinc oxide nanoparticles on Salmonella (In vitro)

2018 ◽  
Vol 9 (SPL1) ◽  
Author(s):  
Hams H. H. Alfattli ◽  
Ghufran Zuhair Jiber ◽  
Ghaidaa Gatea Abbass
Keyword(s):  
Zinc Oxide ◽  
Antibacterial Activity ◽  
Zinc Oxide Nanoparticles ◽  
Quercus Robur ◽  
Ethanolic Extract ◽  
Inhibitory Effect ◽  
Significant Inhibition ◽  
Oxide Nanoparticles ◽  
Inhibition Zones

This study which designed to evaluate the inhibitory effect of Ethanolic extract of (Quercusrobur) and Zinc oxide nanoparticles on the growth of one genus of enterobacteriacae (Salmonella). In vitro. For this purpose graduate concentrates for plant extract (50, 100, 200, 400 )mg/ml which prepared and compared with Zinc oxide nanoparticles of different concentration (2, 1, 0.5, 0.25) μg/ml,and examined. The result showed that the studied medicinal plant has antibacterial activity against this bacteria which used. The result showed that the plant has good activity in decrease the growth of this bacteria. The results of the study also showed that the nano-ZnO has very effective antibacterial action against the studied bacteria which was Salmonella,nanoparticles concentrations lead to increasing in the inhibition zones of tested bacterial growth. We also study the effect of three antibiotics Lomefloxacin (LOM), Ciprofloxacin (SIP) and Rifampin (RA) and the result showed,in a comparison within the tested bacteria,Salmonella had a significant inhibition increase in Lomefloxacin ; the ciprofloxacin showed effect on tested bacteria. However,Rifampin does not show any effect on tested bacteria.

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