Papers

Journal of Ultra Scientist of Physical Sciences - B
Voulume: 30
Issue: 3
Article No. 1
The Soft Separation Axioms Semi- D2 in Soft Topological Spaces and in Soft Bi-Topological Spaces
ARIF MEHMOOD KHATTAK
Riphah International University Islamabad Math department (Pakistan)
FAHAD JAMAL
Qurtuba University of Science and Information Technology Peshawar Math Department (Pakistan)
ISHFAQ AHMED
Qurtuba University of Science and Information Technology Peshawar Math Department (Pakistan)
Abstract :

In this article the concept of Soft semi W-D2 structure in soft topological spaces is introduced in different ways. There are many topological structures in soft topology but soft semi W-D2 topological structure is interesting and more practical because it is obtained from the mixture of two structures.

Keyword : Soft Topology Soft set, soft semi open set, soft semi closed set
Paper Download Count : 596
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Article No. 2
Photocatalytic degradation of methylene blue dye under visible light and influence of H2O2 using hydrothermally synthesized ZnO nanorod array
HARISH. PUNAMCHAND SURYAWANSHI
1Nanomaterial Research Laboratory R. C. Patel Arts, Comm. & Science College, Shirpur, (India)
DILIP. RAMSING. PATIL
1Nanomaterial Research Laboratory R. C. Patel Arts, Comm. & Science College, Shirpur, (India)
Abstract :

The photocatalytic degradation of organic waste using semiconductor photocatalyst under visible light has now received a great interest. The vertically aligned ZnO nanorod array (ZnO NRA) was grown on FTO substrate using hydrothermal method and its photocatalytic activity was also studied. The crystalline structure, morphology and optical properties of as synthesized ZnO NRA were studied by x-ray diffraction (XRD), field emission gun scanning electron microscope (FE-SEM), UV-Visible spectrophotometer and photoluminescence spectroscopy. The addition of small amount of hydrogen peroxide in dye solution inhibits the recombination of electrons and holes on the surface of ZnO nanorod; it also enhance the degradation rate. The average diameter and length of ZnO nanorods are 180 nm and 1.2 μm respectively. The photocatalytic dye degradation rate of ZnO NRA was increased with visible light in the presence of hydrogen peroxide. It was found the degradation efficiency of synthesized ZnO NRA was achieved up to 75% in 3 hour duration in the presence of hydrogen peroxide and visible light.

Keyword : ZnO nanorod array, oxygen vacancy, Visible photocatalyst
Paper Download Count : 552
View Count : 495
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