Enhanced electron transfer and hydrogen peroxide activation capacity with N, P-codoped carbon encapsulated CeO2 in heterogeneous electro-Fenton process

Chemosphere ◽  
2022 ◽  
Vol 287 ◽  
pp. 132154
Author(s):  
Zhipeng Han ◽  
Zhuang Li ◽  
Yi Li ◽  
Denghui Shang ◽  
Liangbo Xie ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Fenton Process ◽  
Peroxide Activation ◽  
Activation Capacity

CHEMICAL OXIDATION OF TREATED TEXTILE EFFLUENT BY HYDROGEN PEROXIDE AND FENTON PROCESS

2010 ◽  
Vol 9 (3) ◽  
pp. 351-360 ◽  
Author(s):  
Abdelnaser Omran ◽  
Hamidi Abdul Aziz ◽  
Marniyanti Mamat Noor
Keyword(s):  
Hydrogen Peroxide ◽  
Chemical Oxidation ◽  
Textile Effluent ◽  
Fenton Process

scholarly journals RuIII(edta) complexes as molecular redox catalysts in chemical and electrochemical reduction of dioxygen and hydrogen peroxide: inner-sphere versus outer-sphere mechanism

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21359-21366
Author(s):  
Debabrata Chatterjee ◽  
Marta Chrzanowska ◽  
Anna Katafias ◽  
Maria Oszajca ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Electrochemical Reduction ◽  
Molecular Oxygen ◽  
Outer Sphere ◽  
Transfer Processes ◽  
Edta Complexes ◽  
Inner Sphere ◽  
Electron Transfer Processes ◽  
Sphere Mechanism

[RuII(edta)(L)]2–, where edta4– =ethylenediaminetetraacetate; L = pyrazine (pz) and H2O, can reduce molecular oxygen sequentially to hydrogen peroxide and further to water by involving both outer-sphere and inner-sphere electron transfer processes.

scholarly journals RuIII(edta) mediated oxidation of azide in the presence of hydrogen peroxide. Azide versus peroxide activation

2014 ◽  
Vol 43 (8) ◽  
pp. 3087-3094 ◽  
Author(s):  
Debabrata Chatterjee ◽  
Alicja Franke ◽  
Maria Oszajca ◽  
Rudi van Eldik
Keyword(s):  
Hydrogen Peroxide ◽  
Peroxide Activation ◽  
Mediated Oxidation

Degradation of Odontologic X-Ray Film Developing Wastewaters by Photo-Fenton Process

2007 ◽  
Vol 5 (1) ◽  
Author(s):  
Luciana Igarashi-Mafra ◽  
Edmilson César Bortoletto ◽  
Maria Angelica Simões Dornella Barros ◽  
Amanda Cristina Alfredo Contrucci Sorbo ◽  
Naiara Aguiar Galliani ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Total Phenol ◽  
Process Conditions ◽  
Phenol Removal ◽  
Total Phenols ◽  
Fenton Process ◽  
X Ray ◽  
Control Factors ◽  
Fenton Oxidation Process ◽  
Wastewater Samples

Effluents from radiographic X-ray film developing processes feature a high contaminant load (COD about 70000 mg/L and total phenols concentration about 16956 mg/L). Photo-Fenton's are potentially useful oxidation processes for destroying toxic organic compounds in water. In these reactions, hydrogen peroxide is combined with ferrous or ferric iron in the presence of light to generate hydroxyl radicals (·OH). The photo-Fenton process was explored as a photochemical treatment to degrade wastewater from radiographic X-ray film developing processes coming from odontologic clinics. A response surface methodology was applied to optimize the photo-Fenton oxidation process conditions using total phenol removal as the target parameter to be optimized, and the reagent concentrations, as related to the initial concentration of organic matter in the effluent, and time and pH as the control factors to be optimized. The best results in terms of maximal total phenol removal and economic process were achieved when wastewater samples were treated at pH 5 in the presence of hydrogen peroxide and iron in the ratios [total phenols]:[H2O2] 1:3 w/w and [Fe2+]:[H2O2] 1:18 w/w and time 1 h.

Technical–Economic Analysis of Hydrogen Peroxide Activation by a Sacrificial Anode: Comparison of Two Exchange Membranes

2021 ◽  
Author(s):  
Jhonatan J. Hermosillo-Nevárez ◽  
Yaneth A. Bustos-Terrones ◽  
Jesús G. Rangel-Peraza ◽  
María M. Armendáriz-Ontiveros ◽  
Leonel E. Amábilis-Sosa ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Economic Analysis ◽  
Sacrificial Anode ◽  
Peroxide Activation
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