Transformation of atrazine, bisphenol A and chlorendic acid by electrochemically produced oxidants using a lead dioxide electrode

2015 ◽  
Vol 1 (6) ◽  
pp. 905-912 ◽  
Author(s):  
N. Hermes ◽  
G. Knupp

A novel microscale ozonation apparatus based on electrocatalytical decomposition of water proved to be effective for treatment of contaminated water.

1989 ◽  
Vol 42 (9) ◽  
pp. 1527 ◽  
Author(s):  
TH Randle ◽  
AT Kuhn

Lead dioxide is a strong oxidizer in sulfuric acid, consequently electrochemical oxidation of solution species at a lead dioxide anode may occur by a two-step, C-E process (chemical oxidation of solution species by PbO2 followed by electrochemical regeneration of the reduced lead dioxide surface). The maximum rate of each step has been determined in sulfuric acid for specified lead dioxide surfaces and compared with the rates observed for the electrochemical oxidation of cerium(III) and manganese(II) on the same electrode surfaces. While the rate of electrochemical oxidation of a partially reduced PbO2 surface may be sufficient to support the observed rates of CeIII and MnII oxidation at the lead dioxide anode, the rate of chemical reaction between PbO2 and the reducing species is not. Hence it is concluded that the lead dioxide electrode functions as a simple, 'inert' electron-transfer agent during the electrochemical oxidation of CellI and MnII in sulfuric acid. In general, it will most probably be the rate of the chemical step which determines the feasibility or otherwise of the C-E mechanism.


2018 ◽  
Vol 17 (5) ◽  
pp. 628-637 ◽  
Author(s):  
Haydar Ali ◽  
Nikhil R. Jana

A gold nanoparticle–graphene based composite has been developed for the degradation of bisphenol A under visible light and to detoxify contaminated water/food/environments.


Author(s):  
Hamza Khallok ◽  
Mohamed Zbair ◽  
Satu Ojala ◽  
Kaisu Ainassaari ◽  
Rachid Brahmi ◽  
...  

2013 ◽  
Vol 785-786 ◽  
pp. 1125-1129
Author(s):  
Xiao Yong Yang ◽  
Pei Xian Zhu ◽  
Yun Sen Si

According to the process of anodic oxygen evolution in sulfate system for zinc electrolysis,Ti-base lead dioxide electrode can be prepared to use in this case.The surface characterization of the electrode was studied by Scanning electron microscopy(SEM) and X-ray diffraction(XRD).The electrode lifetime was tested in 1mol/L H2SO4solution at 60°C,and the electro-catalytic properties was examined by polarization curves.Then these samples was enlarged and simulation test was conducted at Mengzi marriage zinc smelter in Yunnan.The results show that the electro-catalytic properties is better and the electrodes lifetime is longer compared to the traditional lead electrode.Moreover,it has a significant effect in reducing energy consumption, manufacturing cost and improving the production and grade of zinc.


2018 ◽  
Vol 6 (4) ◽  
pp. 4215-4225 ◽  
Author(s):  
Md Ariful Ahsan ◽  
Md Tariqul Islam ◽  
Cesar Hernandez ◽  
Hoejin Kim ◽  
Yirong Lin ◽  
...  

2012 ◽  
Vol 258 (15) ◽  
pp. 5716-5722 ◽  
Author(s):  
Weihua Yang ◽  
Wutao Yang ◽  
Xiaoyan Lin

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