scholarly journals pH-Independent Production of Hydroxyl Radical from Atomic H*-Mediated Electrocatalytic H2O2 Reduction: A Green Fenton Process without Byproducts

2020 ◽  
Vol 54 (22) ◽  
pp. 14725-14731
Author(s):  
Huabin Zeng ◽  
Gong Zhang ◽  
Qinghua Ji ◽  
Huijuan Liu ◽  
Xin Hua ◽  
...  
Keyword(s):  
Hydroxyl Radical ◽  
Fenton Process ◽  
H2o2 Reduction

Degradation of imidacloprid insecticide in a binary mixture with propylene glycol by conventional fenton process

2017 ◽  
Vol 20 (2) ◽  
Author(s):  
Mark Daniel G. de Luna ◽  
Joseph D Retumban ◽  
Sergi Garcia-Segura ◽  
Ming-Chun Lu
Keyword(s):  
Binary Mixture ◽  
Hydroxyl Radical ◽  
Propylene Glycol ◽  
Fenton Process

AbstractImidacloprid is one of the most widely used insecticides in agriculture. The fate of this highly recalcitrant pollutant and its by-product of incomplete degradation in water is of great concern due to the hazardous effects usually associated to pesticides. In the present manuscript, imidacloprid degradation by hydroxyl radical produced

Stability of iron chelates during photo-Fenton process: The role of pH, hydroxyl radical attack and temperature

2020 ◽  
Vol 36 ◽  
pp. 101320 ◽  
Author(s):  
Ungwanen J. Ahile ◽  
Raymond A. Wuana ◽  
Adams U. Itodo ◽  
Rufus Sha’Ato ◽  
Renato F. Dantas
Keyword(s):  
Hydroxyl Radical ◽  
Fenton Process ◽  
Iron Chelates ◽  
Radical Attack

Hydroxyl radical yields in the Fenton process under various pH, ligand concentrations and hydrogen peroxide/Fe(II) ratios

Chemosphere ◽  
2017 ◽  
Vol 182 ◽  
pp. 738-744 ◽  
Author(s):  
Alexandra Fischbacher ◽  
Clemens von Sonntag ◽  
Torsten C. Schmidt
Keyword(s):  
Hydrogen Peroxide ◽  
Hydroxyl Radical ◽  
Fenton Process

Hydroxyl radical generation in the photo-Fenton process: Effects of carboxylic acids on iron redox cycling

2015 ◽  
Vol 277 ◽  
pp. 229-241 ◽  
Author(s):  
Yusuke Baba ◽  
Tomonori Yatagai ◽  
Takuma Harada ◽  
Yoshinori Kawase
Keyword(s):  
Hydroxyl Radical ◽  
Carboxylic Acids ◽  
Redox Cycling ◽  
Fenton Process ◽  
Process Effects ◽  
Radical Generation ◽  
Iron Redox

Remediation of Water Contaminated with Pesticides by Indirect Electrochemical Oxidation Process Electro-Fenton

2008 ◽  
Vol 11 (2) ◽  
Author(s):  
Aida Kesraoui Abdessalem ◽  
Nihal Oturan ◽  
Nizar Bellakhal ◽  
Mohamed Dachraoui ◽  
Mehmet A. Oturan
Keyword(s):  
Aqueous Solutions ◽  
Hydroxyl Radical ◽  
Electrochemical Oxidation ◽  
Acidic Medium ◽  
Advanced Oxidation Process ◽  
Oxidation Process ◽  
Advanced Oxidation ◽  
Fenton Process ◽  
Carbon Felt ◽  
Platinum Anode

AbstractThe mineralization of pesticides chlortoluron, carbofuran and bentazone aqueous solutions in acidic medium of pH 3 was studied by electro-Fenton process using a carbon felt cathode and a platinum anode. This advanced oxidation process allows the formation of hydroxyl radical (

Inhibition of BPA degradation by serum as a hydroxyl radical scavenger and an Fe trapping agent in Fenton process

Chemosphere ◽  
2004 ◽  
Vol 57 (4) ◽  
pp. 241-252 ◽  
Author(s):  
Junko Sajiki ◽  
Toshiki Masumizu
Keyword(s):  
Hydroxyl Radical ◽  
Radical Scavenger ◽  
Fenton Process ◽  
Hydroxyl Radical Scavenger ◽  
Trapping Agent

Effect of pH on Fenton process using estimation of hydroxyl radical with salicylic acid as trapping reagent

2008 ◽  
Vol 58 (4) ◽  
pp. 873-879 ◽  
Author(s):  
Chen-Yu Chang ◽  
Yung-Hsu Hsieh ◽  
Kai-Yuan Cheng ◽  
Ling-Ling Hsieh ◽  
Ta-Chih Cheng ◽  
...  
Keyword(s):  
Salicylic Acid ◽  
Hydroxyl Radical ◽  
Ph Value ◽  
Formation Rate ◽  
Fenton Process ◽  
Reaction Products ◽  
Reaction Conditions ◽  
Ph Values ◽  
The Difference ◽  
The Relationship

This study estimates the yield of hydroxyl radical using salicylic acid as the trapping reagent and investigates the relationship between hydroxyl radical and pH value. The formation and variation of hydroxyl radical under different pH values were evaluated using reaction products, 2,3-DHBA, 2,5-DHBA, and catechol. The formation rate of hydroxyl radical was dependent on the ratio of ferrous ion to hydrogen peroxide and pH values. The difference between various pH values was explored. The kinetics and mechanisms of hydroxyl radical reactions were established in the Fenton process. Experimental results showed that the best reaction conditions were 8.5 mM H2O2, 1.25 mM Fe2 + , Fe2 + /H2O2=0.147 at pH 3 and the formation rate constant of hydroxyl radical was 1.12 × 1011 M−1 s−1.

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