Electrochemical degradation of methyl orange on Pt–Bi/C nanostructured electrode by a square-wave potential method

2013 ◽  
Vol 92 ◽  
pp. 93-101 ◽  
Author(s):  
Shu-Hong Li ◽  
Yue Zhao ◽  
Jian Chu ◽  
Wen-Wei Li ◽  
Han-Qing Yu ◽  
...  
CrystEngComm ◽  
2021 ◽  
Vol 23 (38) ◽  
pp. 6655-6660
Author(s):  
Chi Xiao ◽  
Na Tian ◽  
Wei-Ze Li ◽  
Xi-Ming Qu ◽  
Jia-Huan Du ◽  
...  

Shape transformation between high-index faceted Pt nanocrystals and low-index faceted ones have been achieved by an electrochemical square-wave potential method.


2016 ◽  
Vol 149 ◽  
pp. 31-36 ◽  
Author(s):  
Hayat Abdulla Yusuf ◽  
Zainab Mohammed Redha ◽  
Sara J. Baldock ◽  
Peter R. Fielden ◽  
Nick.J. Goddard

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 2697
Author(s):  
Jiajie Xing ◽  
Min Song ◽  
Mengyao Yang ◽  
Xu Tan ◽  
Fenglin Li ◽  
...  

In this paper, granular copper films (GCFs) were prepared through electrodeposition in CuSO4 solution containing triethanolamine, and the films were used as electro-Fenton-like cathodes for degradation of methyl orange (MO). The effects of triethanolamine concentration, pH value, current intensity and temperature on the morphology of the films, as well as the MO decolorization ratio (DR), were investigated in detail. Results show that when the concentration of triethanolamine is 0.2 wt%, the prepared GCF exhibits the best performance. Under room temperature and neutral conditions, no external O2 or catalyst, MO is completely decolorized after 240 min. Compared with the commonly used carbon cathode, the GCF cathode can increase the MO decolorization rate by approximately 70.9%. The kinetics of the electrochemical degradation reaction is also discussed.


RSC Advances ◽  
2018 ◽  
Vol 8 (35) ◽  
pp. 19776-19785 ◽  
Author(s):  
Shan Sun ◽  
Peng Diao ◽  
Cuiyun Feng ◽  
Eleonora-Mihaela Ungureanu ◽  
Yi Tang ◽  
...  

A novel NF/β-Ni(OH)2 catalyst for energy efficient electrochemical degradation of methyl orange was fabricated via a facile hydrothermal method.


2020 ◽  
Vol 16 ◽  
Author(s):  
Nimisha Jadon ◽  
Gulzar Ahmad Bhat ◽  
Manoharmayum Vishwanath Sharma ◽  
Harendra Kumar Sharma

Background: The study focuses on the synthesis of chitosan/ Fe2O3 nanocomposite, its characterization and application in methyl orange dye degradation. Methods: The synthesized chitosan/ Fe2O3 nanocomposite was characterized with Powder X-Ray Diffraction, Fourier Transformation Infrared Spectroscopy (FTIR), Transmission Electron Microscopy (TEM) and UV-Vis Spectroscopy. Results: The characterization showed that the Fe2O3nanoparticles were embedded in the polymer matrix of chitosan. The size of the Fe2O3nanoparticles were less than 10nm and the crystallite size was 1.22 nm.The synthesized chitosan/ Fe2O3nanocomposite was tested for methyl orange degradation using different parameters such as effect of contact time, effect of dose, effect of concentration and effect of pH for the degradation of methyl orange dye in aqueous solution.The Fruendlich, Langmuir and Temkin isotherm studies were also conducted for adsoption of methyl orange on Chitosan/ Fe2O3nanocomposite. Conclusion: The study indicated that the synthesized chitosan/Fe2O3 nanocomposite had the potential of degrading methyl orange dye up to 75.04% under the set condition in this experiment which indicate that Chitosan/ Fe2O3 nanocomposite is a viable option that can be used for the degradation of methyl orange dye.


2019 ◽  
Vol 95 ◽  
pp. 105933
Author(s):  
Guohui Wang ◽  
Ruiqi Huang ◽  
Annan Zhou ◽  
Qinghong Xu

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