Energy band gap tuning of LaNiO3 by Gd, Fe and Co ions doping to enhance solar light absorption for efficient photocatalytic degradation of RhB dye: A mechanistic approach

2021 ◽  
pp. 117581
Author(s):  
Aamir Ghafoor ◽  
Ismat Bibi ◽  
Sadia Ata ◽  
Farzana Majid ◽  
Shagufta Kamal ◽  
...  
2018 ◽  
Vol 7 (4.30) ◽  
pp. 538 ◽  
Author(s):  
Maytham Qabel Hamzah ◽  
Salim Oudah Mezan ◽  
Alaa Nihad Tuama ◽  
Abdullah Hasan Jabbar ◽  
Mohd Arif Agam

Synthetic polymer/TiO2 composite such as Polystyrene/TiO2 has become recent highly research materials due to its potential and significant application in various fields. we can tune the polymer and nanoparticles by different techniques such as change the materials concentration, Exposure of materials to laser radiation, Exposure of materials to laser radiation, especially in tuning the polystyrene/TiO2 composite energy band gap. In this review, several methods of preparation are briefly explored such as pan-milling, precipitation, melt compounding, dip-coating, solution cast, and sol-gel method. Some recent advancement that focuses on the two basic elements: polymer and TiO2 are also included especially discussing on photocatalytic degradation that introduces photon as manipulate parameter to tune the polymer/TiO2 composite energy band gap. Scanning electron microscope (SEM) analysis of various polymer/TiO2 (type n concentration) and Polystyrene/TiO2 (concentration and nanoparticles sizes) are the focus of the discussion before exposure to laser radiation as photodegradation source.   


2020 ◽  
Vol 55 (23) ◽  
pp. 9695-9702
Author(s):  
Anna Krivosheeva ◽  
Victor Shaposhnikov ◽  
Victor Borisenko ◽  
Jean-Louis Lazzari

2013 ◽  
Vol 79 ◽  
pp. 281-284 ◽  
Author(s):  
Qiao Zhongliang ◽  
Tang Xiaohong ◽  
Lee Eng Kian Kenneth ◽  
Lim Peng Huei ◽  
Bo BaoXue

2008 ◽  
Vol 7 (4) ◽  
pp. 422-426 ◽  
Author(s):  
Tang Xiaohong ◽  
Yin Zongyou ◽  
Teng Jinghua ◽  
Du Anyan ◽  
Chin Mee Koy

Mathematics ◽  
2020 ◽  
Vol 8 (9) ◽  
pp. 1512
Author(s):  
Changho Seo ◽  
Seongsoo Cho ◽  
Je Huan Koo
Keyword(s):  
Band Gap ◽  

We investigate why normal electrons in superconductors have no resistance. Under the same conditions, the band gap is reduced to zero as well, but normal electrons at superconducting states are condensed into this virtual energy band gap.


2008 ◽  
Vol 3 ◽  
pp. 97-102 ◽  
Author(s):  
Dinu Patidar ◽  
K.S. Rathore ◽  
N.S. Saxena ◽  
Kananbala Sharma ◽  
T.P. Sharma

The CdS nanoparticles of different sizes are synthesized by a simple chemical method. Here, CdS nanoparticles are grown through the reaction of solution of different concentration of CdCl2 with H2S. X-ray diffraction pattern confirms nano nature of CdS and has been used to determine the size of particle. Optical absorption spectroscopy is used to measure the energy band gap of these nanomaterials by using Tauc relation. Energy band gap ranging between 3.12 eV to 2.47 eV have been obtained for the samples containing the nanoparticles in the range of 2.3 to 6.0 nm size. A correlation between the band gap and size of the nanoparticles is also established.


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