Degradation kinetics and mechanism of oxytetracycline by hydroxyl radical-based advanced oxidation processes

Degradation of Oxytetracycline by the Iron Wire/H2O2 System

“…It is well known that the isopropanol is an effective scavenger for OH [25]. When the different doses of isopropanol were introduced into the iron wire/H 2 O 2 system, the experiment results of degradation of OTC were shown in Figure 7 and Table VI.…”

“…The experimental results are shown in Figure 2 and 5-7), leading to the degradation of OTC was suppressed [25,33,34]. …”

“…The change of Fe 2+ dose indicate that the formation rate of Fe 2+ was not less than its consuming rate in the reaction. The pH value of the reaction solution had barely changed, which suggested that some new H + due to the deprotonation of naphthol ring of OTC may be produced in the degradation of OTC [25]. The new created H + could neutralize OH -produced in the decomposition of H 2 O 2 and supplement depletion of H + due to the corrosion of iron wire (Eqs.…”

“…The several works of degradation of OTC on account of OH oxidation have been reported in the recent years [24,25,26,27,28]. There is certain feasibility for the degradation of OTC by Fe 0 -based Fenton process.…”

A Review on Advanced Oxidation Processes for Effective Water Treatment

“…In general, the realistic aim of any water purification techniques is to render water that is free of toxic matters (organic, inorganic and biological). In this regard, AOPs are characterized as best water treatment/purification processes that involve generation of hydroxyl radical (*Oh) in sufficient quantity to affect water purification at standard temperature and pressure 6 . The significant advantage of AOPs over all existing chemical and biological processes is that they are totally "environmental-friendly" as they neither transfer pollutants from one phase to the other (as in chemical precipitation and adsorption) nor produce massive amounts of hazardous sludge [7][8][9][10] .…”