Stability and reusability are important characteristics of advanced catalysts for wastewater treatment. In this work, for the first time, sulfate radicals (SO4∙-) with a high oxidative potential (Eo = 2.5-3.1 V) were successfully activated from persulfate by a Fe78Si9B13 metallic glass. This alloy exhibited a superior surface stability and reusability while activating persulfate as indicated by...

Potassium monopersulfate has been decomposed in aqueous solution in the presence of Co(II). The process has been simulated by means of a mechanism based on elementary reactions. Rate constants have been taken from literature reports or, alternatively, assimilated to analogous reactions occurring in Fenton ́s chemistry. Several operating conditions have been successfully applied. Keywords—Monoper...

S-2 (3-aminopropylamino)ethylphosphorothioate ameliorates hearing losses due to ototoxic doses of kanamycin sulfate in the guinea pig when administered one hour before the antibiotic. Since this radioprotectant is believed to operate as a free-radical scavenger, kanamycin ototoxicity may involve free radicals.

This mini review summarizes the recent advances that have been conducted toward electrochemical degradation of organic pollutants in aquatic solution on diamond anodes. In particular, first section focuses generation mechanisms reactive species comprising hydroxyl radicals (•OH), sulfate (SO4·−, S2O82−), and active chlorine (Cl2, ClO− etc.) Meanwhile, second is devoted to produce novel efficien...

The free radical scavenging and/or generating activity of dopamine-4-O-sulfate was examined and compared with that of dopamine. In humans, dopamine mostly exists in two isomeric forms of sulfate ester conjugates as metabolites; i.e., dopamine-3-O-sulfate and dopamine-4-O-sulfate in the circulation. Dopamine is generally believed to be oxidized by molecular oxygen or another reactive oxygen spec...

In recent years, advanced oxidation process (AOPs) based on sulfate radical (SO4??) and singlet oxygen (1O2) has attracted a lot of attention because its characteristics rapid reaction, efficient treatment, safety stability, easy operation. SO4?? 1O2 mainly comes from the activation reaction peroxymonosulfate (PMS) or persulfate (PS), which represent reactions involving radicals non-radicals, r...

Abstract The chemical degradation of sulfate by activated Oxyone has the advantages high capacity, wide pH range and convenient transportation storage, making it one most attractive advanced oxidation processes (AOPs). Besides, Co is metal capable activating Oxone to produce sulfate. Therefore, critical develop Co-based catalyst, an effective recyclable heterogeneous for degrade tetracycline. I...

Hypochlorous acid and its conjugate base, hypochlorite ions, produced under inflammatory conditions, may produce chloramides of glycosaminoglycans, these being significant components of the extracellular matrix (ECM). This may occur through the binding of myeloperoxidase directly to the glycosaminoglycans. The N-Cl group in the chloramides is a potential selective target for both reducing and o...