2022
DOI: 10.1039/d1ew00731a
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Insights into the relationship of reactive oxygen species and anions in persulfate-based advanced oxidation processes for saline organic wastewater treatment

Abstract: Over the last two decades, persulfate-based advanced oxidation processes have attracted considerable attention because of their high efficiency and great versatility in the degradation of organic pollutants. The various radical...

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Cited by 23 publications
(16 citation statements)
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“…E q (cOH/H 2 O) ¼ 2.73 V) capable of mineralization of various organic pollutants. [14][15][16] As biochar is readily available from waste biomass, its application in remediation of contaminated environments is advantageous over other elaborately synthesized materials in view of cost and sustainability. [17][18][19] However, the practical application of biochar-activated systems is limited by the low yield of ROS.…”
Section: Introductionmentioning
confidence: 99%
“…E q (cOH/H 2 O) ¼ 2.73 V) capable of mineralization of various organic pollutants. [14][15][16] As biochar is readily available from waste biomass, its application in remediation of contaminated environments is advantageous over other elaborately synthesized materials in view of cost and sustainability. [17][18][19] However, the practical application of biochar-activated systems is limited by the low yield of ROS.…”
Section: Introductionmentioning
confidence: 99%
“…This observation could be attributed to the increase of the initial solution pH from 7 to 11.7 after the addition of 25 mM CO 3 2– , which was unfavorable for paracetamol degradation (discussed in the following section). Meanwhile, the consumption of • O 2 – by reacting with CO 3 2– anions to generate • CO 3 – that contained weak oxidation potential also reduced the paracetamol degradation efficiency . It is worth pointing out that more than 85% of paracetamol could still be removed by COF-TD1 in 120 min with visible-light irradiation even in the presence of CO 3 2– anions.…”
Section: Resultsmentioning
confidence: 98%
“…Meanwhile, the consumption of • O 2 − by reacting with CO 3 2− anions to generate • CO 3 − that contained weak oxidation potential also reduced the paracetamol degradation efficiency. 63 It is worth pointing out that more than 85% of paracetamol could still be removed by COF-TD1 in 120 min with visible-light irradiation even in the presence of CO 3 2− anions. Clearly, the copresence of anions did not obviously affect the degradation of paracetamol by COF-TD1.…”
Section: Effects Of Water Chemistry and Degradation Performance In Re...mentioning
confidence: 94%
“…Radical and nonradical oxidation in PS-based AOPs have received growing attention in the environmental sciences and chemistry literature, as evidenced by the exponentially increasing number of publications with a doubling time of 2.3 years (Figure a). , A brief overview of key milestones in the development of PS-based AOPs is included in this figure (Figure c). Previous reviews addressed six aspects of this process, including degradation of a range of contaminants, , PS activation mechanisms, , comparison with other AOPs, , identification of reaction pathways, , determination of reactive species, , and quantum chemistry calculations , (Figure b). Unlike previous reviews, we offer a critical comparison of radical and nonradical oxidation pathways regarding degradation kinetics, water matrix interference, selectivity toward contaminants, temperature, pH, byproduct formation, and energy requirements.…”
Section: Comparison Of Radical and Nonradical Oxidation Processesmentioning
confidence: 99%