Effect of aluminum doping on the structural and luminescent properties of ZnO nanoparticles synthesized by wet chemical method

2011 ◽  
Vol 43 (6) ◽  
pp. 1166-1170 ◽  
Author(s):  
R. Saravana Kumar ◽  
R. Sathyamoorthy ◽  
P. Sudhagar ◽  
P. Matheswaran ◽  
C.P. Hrudhya ◽  
...  
Keyword(s):  
Zno Nanoparticles ◽  
Chemical Method ◽  
Luminescent Properties ◽  
Wet Chemical Method ◽  
Aluminum Doping ◽  
Wet Chemical

scholarly journals Structural, optical and photocatalytic properties of flower-like ZnO nanostructures prepared by a facile wet chemical method

2013 ◽  
Vol 4 ◽  
pp. 763-770 ◽  
Author(s):  
Sini Kuriakose ◽  
Neha Bhardwaj ◽  
Jaspal Singh ◽  
Biswarup Satpati ◽  
Satyabrata Mohapatra
Keyword(s):  
Electron Microscopy ◽  
Surface Layer ◽  
Zno Nanoparticles ◽  
Chemical Method ◽  
Photocatalytic Properties ◽  
Oriented Attachment ◽  
Blue Dye ◽  
Zno Nanostructures ◽  
Wet Chemical Method ◽  
Wet Chemical

Flower-like ZnO nanostructures were synthesized by a facile wet chemical method. Structural, optical and photocatalytic properties of these nanostructures have been studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), photoluminescence (PL) and UV–vis absorption spectroscopy. SEM and TEM studies revealed flower-like structures consisting of nanosheets, formed due to oriented attachment of ZnO nanoparticles. Flower-like ZnO structures showed enhanced photocatalytic activity towards sun-light driven photodegradation of methylene blue dye (MB) as compared to ZnO nanoparticles. XRD, UV–vis absorption, PL, FTIR and TEM studies revealed the formation of Zn(OH)2 surface layer on ZnO nanostructures upon ageing. We demonstrate that the formation of a passivating Zn(OH)2 surface layer on the ZnO nanostructures upon ageing deteriorates their efficiency to photocatalytically degrade of MB.

Using X-Ray Diffraction and Scanning Electron Microscope to Study Zinc Oxide Nanoparticles Prepared by Wet Chemical Method

2013 ◽  
Vol 685 ◽  
pp. 119-122 ◽  
Author(s):  
Tahseen H. Mubarak ◽  
Karim H. Hassan ◽  
Zena Mohammed Ali Abbas
Keyword(s):  
Zinc Oxide ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Zno Nanoparticles ◽  
Chemical Method ◽  
X Ray Diffraction ◽  
Wet Chemical Method ◽  
X Ray ◽  
Wet Chemical ◽  
Scanning Electron

The application of nanoparticles in the processes of making commercial products has increased in recent years due to their unique physical and chemical properties. Materials whose crystallites, particle sizes are smaller than 100 nm are commonly named nanocrystalline, nanostructured, nanosized materials. There are many methods used for the preparation of nanomaterials. We use is a method which is easy if compared to other methods with the chemicals required for these methods are available and cheap. Nano zinc oxide has been prepared by wet chemical method from zinc nitrate and using sodium bicarbonate as precipitation agent. The resulting nanopowders were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM).The particle size measurement using XRD Scherer’s formula calculations confirms that the crystallite size of the ZnO nanoparticles range from 41 to 67 nm and depending on calcinations temperature. SEM micrographs reveals less number of pores with smaller lump size in addition to clearly showing the micro structural homogeneity and remarkably dense mode of packing of grains of ZnO nanoparticles with minimum porosity.

Synthesis and Thermal Conductivity of ZnO Nanofluids

2013 ◽  
Vol 734-737 ◽  
pp. 2415-2419
Author(s):  
Wei Jiang ◽  
Jing Wen Su ◽  
Can Ying Zhang ◽  
Da Xiong Wu ◽  
Hai Tao Zhu
Keyword(s):  
Thermal Conductivity ◽  
Zno Nanoparticles ◽  
Chemical Method ◽  
Particle Loading ◽  
Wet Chemical Method ◽  
Synthesis Parameters ◽  
Wet Chemical ◽  
Zno Nanofluids ◽  
Water Ratio ◽  
Thermal Conductivities

In this article, a wet chemical method was developed to prepare stable ZnO nanofluids. The influences of synthesis parameters, such as EG/water ratio, timing and quantity of NaOH addition, were studied. The thermal conductivity of the ZnO nanofluids was investigated. The results showed that synthesis parameters had significant impacts on the dispersibility and size of ZnO nanoparticles. The thermal conductivities of ZnO nanofluids increased with the increase of particle loading. The enhancement was 11% for 1.1vol% ZnO nanofluid. The effective thermal conductivities of the ZnO nanofluids can not be predicted by the present models.

Impact of LiTi2(PO4)3 coating on the electrochemical performance of Li1.2Ni0.13Mn0.54Co0.13O2 using a wet chemical method

Ionics ◽  
2021 ◽  
Vol 27 (4) ◽  
pp. 1465-1475
Author(s):  
Ning Zhang ◽  
Ying Li ◽  
Yadan Luo ◽  
Zhen Yang ◽  
Jiayao Lu
Keyword(s):  
Electrochemical Performance ◽  
Chemical Method ◽  
Wet Chemical Method ◽  
Wet Chemical
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