Photocatalytic activities of ZnO nanoparticles synthesized by wet chemical techniques

2006 ◽  
Author(s):  
Ruh Ullah ◽  
Joydeep Dutta
Keyword(s):  
Zno Nanoparticles ◽  
Photocatalytic Activities ◽  
Wet Chemical ◽  
Chemical Techniques

Band gap engineering and enhanced photoluminescence of Mg doped ZnO nanoparticles synthesized by wet chemical route

2015 ◽  
Vol 161 ◽  
pp. 275-280 ◽  
Author(s):  
Mohd. Arshad ◽  
Mohd. Meenhaz Ansari ◽  
Arham S. Ahmed ◽  
Pushpendra Tripathi ◽  
S.S.Z. Ashraf ◽  
...  
Keyword(s):  
Band Gap ◽  
Zno Nanoparticles ◽  
Chemical Route ◽  
Band Gap Engineering ◽  
Enhanced Photoluminescence ◽  
Wet Chemical ◽  
Wet Chemical Route ◽  
Doped Zno ◽  
Mg Doped

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.

Study of ZnO Nanoparticles-Decorated TiO2 {001} Facets Heterostructures and their Photocatalytic Activity

2019 ◽  
Vol 298 ◽  
pp. 175-180
Author(s):  
Ke Yue Wu ◽  
Jing Biao Cui
Keyword(s):  
Photocatalytic Activity ◽  
Hydrothermal Method ◽  
Zno Nanoparticles ◽  
Growth Temperature ◽  
Charge Recombination ◽  
Simple Hydrothermal Method ◽  
Size And Shape ◽  
Zno Nanocrystals ◽  
Photocatalytic Activities

ZnO decorated-TiO2 nanosheets with exposed {001} facets were achieved by a simple hydrothermal method. The size and shape of ZnO nanoparticles were controlled by tuning the growth temperature. SEM, HRTEM, and SAED measurements confirmed the formation of {001} TiO2 nanosheets with the decoration of ZnO nanoparticles. The ZnO/TiO2 {001} facets heterostructures show an improved efficient in photocatalytic activities due to the decreased charge recombination with the presence of ZnO nanocrystals.

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