Preparation of zinc tellurides quantum dots and zinc tellurides/multi-walled carbon nanotubes nanocomposites and photocatalytic activity

2020 ◽  
pp. 1-7
Author(s):  
Leila Fatolahi ◽  
Alireza Feizbakhsh
Keyword(s):  
Carbon Nanotubes ◽  
Quantum Dots ◽  
Photocatalytic Activity ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Synthesis of Multi-Walled Carbon Nanotubes/TiO2 Composite and Its Photocatalytic Activity

2016 ◽  
Vol 16 (3) ◽  
pp. 2646-2651 ◽  
Author(s):  
Hongying Dong ◽  
Caifeng Qu ◽  
Tingting Zhang ◽  
Liwei Zhu ◽  
Wen Ma
Keyword(s):  
Carbon Nanotubes ◽  
Photocatalytic Activity ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

scholarly journals Enhancement photocatalytic activity of spinel oxide (Co, Ni)3O4 by combination with carbon nanotubes

2017 ◽  
Vol 19 (3) ◽  
pp. 61-67 ◽  
Author(s):  
Bashaer J. Kahdum ◽  
Abbas J. Lafta ◽  
Amir M. Johdh
Keyword(s):  
Carbon Nanotubes ◽  
Photocatalytic Activity ◽  
Diffuse Reflectance Spectroscopy ◽  
X Rays ◽  
Spinel Oxide ◽  
Reaction Conditions ◽  
Multiwalled Carbon ◽  
Radiation Sources ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes

Abstract In this study, some types of composites consisting of multi-walled carbon nanotubes (MWCNTs) and spinel oxide (Co, Ni)3O4 were synthesized by simple evaporation method. These composites were characterized by UV–Vis diffuse reflectance spectroscopy, X-rays diffraction(XRD), Scanning electron microscopy (SEM) and specific surface area(SBET). The photocatalytic activity of the prepared composites was investigated by the following removal of Bismarck brown G (BBG) dye from its aqueous solutions. The obtained results showed that using MWCNTs in combination with spinel oxide to produced composites (spinel/MWCNTs) which succeeded in increasing the activity of spinel oxide and exhibited higher photocatalytic activity than spinel oxide alone. Also it was found that, multiwalled carbon nanotubes were successful in increasing the adsorption and improving the activity of photocatalytic degradation of Bismarck brown G dye(BBG). The obtained results showed that spinel/MWCNTs was more active in dye removal in comparison with each of spinel oxide and MWCNTs alone under the same reaction conditions. Also band gap energies for the prepared composites showed lower values in comparison with neat spinel. This point represents a promising observation as these composites can be excited using a lower energy radiation sources.

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