Removal of congo red azo dye from aqueous solution by ZnO nanoparticles loaded on multiwall carbon nanotubes

2019 ◽  
Vol 106 ◽  
pp. 150-155 ◽  
Author(s):  
Seyed Masoud Seyed Arabi ◽  
Rahman Shakibaei Lalehloo ◽  
Mohamad Reza Talei Bavil Olyai ◽  
Gomaa A.M. Ali ◽  
Hamidreza Sadegh
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Zno Nanoparticles ◽  
Congo Red ◽  
Azo Dye ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon

Flexible Carbon-Based Nanogenerators

2015 ◽  
Vol 1782 ◽  
pp. 1-8
Author(s):  
Ning-Qin Deng ◽  
He Tian ◽  
Qing-Tang Xue ◽  
Zhe Wang ◽  
Hai-Ming Zhao ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Graphene Oxide ◽  
Energy Harvesting ◽  
Zno Nanoparticles ◽  
Output Voltage ◽  
Multiwall Carbon Nanotubes ◽  
The Other ◽  
Peak Voltage ◽  
Energy Depletion ◽  
Multiwall Carbon

ABSTRACTNanogenerators (NGs) have great potential to solve the problems of energy depletion and environmental pollution. Here, two types of flexible nanogenerators (FNGs) based on graphene oxide (GO) and multiwall carbon nanotubes (MW-CNTs) are presented. The peak output voltage and current of GO based FNG reached up to 2 V and 30 nA, respectively, under 15 N force at 1 Hz. Moreover, the output voltage could be improved to 34.4 V when the frequency was increased to 10 Hz. It was also found the output voltage increased from 0.1 V to 2.0 V using a released GO structure. The other FNG was made by MW-CNTs mixed with ZnO nanoparticles (NPs). Its output voltage and power reached up to 7.5 V and 18.75 mW, respectively, which is much larger than that of bare ZnO based FNG. Furthermore, a peak voltage of 30 V could be gained by stamping one’s foot on the FNG. Finally, a modified NG was fabricated using four springs and two flexible layers. As a result, the voltage and power reached up to 9 V and 27mW, respectively. These works may bring out broad applications in energy harvesting.

scholarly journals Application of oxidized multiwall carbon nanotubes as a novel adsorbent for removal of Acid Red 18 dye from aqueous solution

2012 ◽  
Vol 4 (3) ◽  
pp. 335-346 ◽  
Author(s):  
M Shirmardi ◽  
F Khodarahmi ◽  
M Heidari Farsani ◽  
A Naeimabadi ◽  
M Vosughi Niri ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Aqueous Solution ◽  
Multiwall Carbon Nanotubes ◽  
Multiwall Carbon
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