scholarly journals Photocatalytic and Magnetic Behaviors Observed in BiFeO3Nanofibers by Electrospinning

2013 ◽  
Vol 2013 ◽  
pp. 1-7 ◽  
Author(s):  
Xuehui Zhang ◽  
Haiyang Liu ◽  
Bin Zheng ◽  
Yuanhua Lin ◽  
Deping Liu ◽  
...  

Perovskite-type BiFeO3nanofibers with wave nodes-like morphology were prepared by electrospinning. The nanofibers show a highly enhanced visible-light-active photocatalytic property. The results also showed that the diameter could affect the band gap and photocatalytic performances of nanofibers. Additionally, weak ferromagnetic behaviors can be observed at room temperature, which should be correlated to the size-confinement effect on the magnetic ordering of BiFeO3structure.

2017 ◽  
Vol 5 (38) ◽  
pp. 20298-20303 ◽  
Author(s):  
Hadi Razavi-Khosroshahi ◽  
Kaveh Edalati ◽  
Ji Wu ◽  
Yuki Nakashima ◽  
Makoto Arita ◽  
...  

High-pressure rocksalt ZnO with a band gap of 1.8 eV, which can absorb visible light.


2017 ◽  
Vol 19 (36) ◽  
pp. 24915-24927 ◽  
Author(s):  
A. H. Reshak

The amalgamation of a wide optical band gap photocatalyst with visible-light-active CdO quantum dots (QDs) as sensitizers is one of the most efficient ways to improve photocatalytic performance under visible light irradiation.


2012 ◽  
Vol 23 ◽  
pp. 54-57 ◽  
Author(s):  
Lang Chen ◽  
Shuang-Feng Yin ◽  
Rui Huang ◽  
Yan Zhou ◽  
Sheng-Lian Luo ◽  
...  

Nanomaterials ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 599 ◽  
Author(s):  
Chiara D’Amato ◽  
Rita Giovannetti ◽  
Marco Zannotti ◽  
Elena Rommozzi ◽  
Marco Minicucci ◽  
...  

The effect of surface modification using ascorbic acid as a surface modifier of nano-TiO2 heterogeneous photocatalyst was studied. The preparation of supported photocatalyst was made by a specific paste containing ascorbic acid modified TiO2 nanoparticles used to cover Polypropylene as a support material. The obtained heterogeneous photocatalyst was thoroughly characterized (scanning electron microscope (SEM), RAMAN, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), photoluminescence (PL), and Diffuse Reflectance Spectra (DRS) and successfully applied in the visible light photodegradation of Alizarin Red S in water solutions. In particular, this new supported TiO2 photocatalyst showed a change in the adsorption mechanism of dye with respect to that of only TiO2 due to the surface properties. In addition, an improvement of photocatalytic performances in the visible light photodegration was obtained, showing a strict correlation between efficiency and energy band gap values, evidencing the favorable surface modification of TiO2 nanoparticles.


2016 ◽  
Vol 439 ◽  
pp. 123-129 ◽  
Author(s):  
Yong Li ◽  
Yayang Tian ◽  
Ruofang Zhang ◽  
Longlong Ma ◽  
Chaoxin Zhou ◽  
...  

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