Efficient degradation of ibuprofen by Co/Fe@CNFs catalyst in the presence of peroxymonosulfate and persulfate: Characterization, performance, and mechanism comparison

Zhang, Yang; Yang, Ting-shu; Li, Rui; Cao, Xiaoqiang; Kan, Yujiao; Wei, Bo; Sun, Xiaojie

doi:10.1016/j.jtice.2021.104161

Cited by 17 publications

(7 citation statements)

References 41 publications

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“…At the same time, it can prove that the generated amount of O 2 − and 1 O 2 is small in this degradation system, in particular, 1 O 2 is based on generated by O 2 − . Based on this and combined with existing research, relevant possible reactions as Formulas (4)-( 12) are shown [3,50,51] The formation and degradation mechanism of free radicals is roughly shown in Figure 9 [17]. In general, after absorbing a certain amount of cobalt ions by impregnation, we carbonize the used resin into a black carbon ball.…”

Section: Mechanism Explorationmentioning

confidence: 85%

“…

has a certain degree of inhibition on the reaction system. Combined with relevant studies, it can be explained that the existence of

will inhibit the formation of

, which will reduce the formation rate of

indirectly as shown in the reaction Formulas (5) and (7) [ 3 ]. The influence of

is very obvious, the inhibition rate is as high as 60%, and the final effect is not much better than that of the resin and PMS degradation system, more importantly, the kinetic constants are all around 0.04 min −1 , and the linear correlation coefficient of the first-order kinetic fitting is only 85%.…”

Section: Resultsmentioning

confidence: 99%

“…At the same time, it can prove that the generated amount of

and

is small in this degradation system, in particular,

is based on generated by

. Based on this and combined with existing research, relevant possible reactions as Formulas (4)–(12) are shown [ 3 , 50 , 51 ]:

…”

Section: Resultsmentioning

confidence: 99%

“…A large number of so-called pharmaceutical and personal care product pollutants (PPCPs) have been a class of persistent organic pollutants around the world due to people’s extensive use and its difficult degradation in the water environment, which has become a concern of the global community [ 1 ]. Ibuprofen (IBU) as a typical PPCP, used to treat pain, fever as an anti-inflammatory with the advantages of low toxicity, fine curative effect and few side effects, has become a new generation of non-steroidal anti-inflammatory drugs and is widely used [ 2 , 3 ]. Massive abuse and continuous input of PPCPs make them a false persistence phenomenon in the environment.…”

Section: Introductionmentioning

confidence: 99%

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Efficient Activation of Peroxymonosulfate by Cobalt Supported Used Resin Based Carbon Ball Catalyst for the Degradation of Ibuprofen

Zhou

Zhang

et al. 2022

Materials

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The extensive use of ibuprofen (IBU) and other pharmaceuticals and personal care products (PPCPs) causes them widely to exist in nature and be frequently detected in water bodies. Advanced catalytic oxidation processes (AOPs) are often used as an efficient way to degrade them, and the research on heterogeneous catalysts has become a hot spot in the field of AOPs. Among transitional metal-based catalysts, metal cobalt has been proved to be an effective element in activating peroxymonosulfate (PMS) to produce strong oxidizing components. In this study, the used D001 resin served as the matrix material and through simple impregnation and calcination, cobalt was successfully fixed on the carbon ball in the form of cobalt sulfide. When the catalyst was used to activate persulfate to degrade IBU, it was found that under certain reaction conditions, the degradation rate in one hour could exceed 70%, which was far higher than that of PMS and resin carbon balls alone. Here, we discussed the effects of catalyst loading, PMS concentration, pH value and temperature on IBU degradation. Through quenching experiments, it was found that SO4− and ·OH played a major role in the degradation process. The material has the advantages of simple preparation, low cost and convenient recovery, as well as realizing the purpose of reuse and degrading organic pollutants efficiently.

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Section: Mechanism Explorationmentioning

confidence: 85%

“…

has a certain degree of inhibition on the reaction system. Combined with relevant studies, it can be explained that the existence of

will inhibit the formation of

, which will reduce the formation rate of

indirectly as shown in the reaction Formulas (5) and (7) [ 3 ]. The influence of

Section: Resultsmentioning

confidence: 99%

“…At the same time, it can prove that the generated amount of

and

is small in this degradation system, in particular,

is based on generated by

. Based on this and combined with existing research, relevant possible reactions as Formulas (4)–(12) are shown [ 3 , 50 , 51 ]:

…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Efficient Activation of Peroxymonosulfate by Cobalt Supported Used Resin Based Carbon Ball Catalyst for the Degradation of Ibuprofen

Zhou

Zhang

et al. 2022

Materials

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show abstract

“…Our results are similar to those reported by Zhang et al, 2022, who evaluated a carbon-nanofiber-supported bimetallic catalyst (Co/Fe) for the treatment of ibuprofen. Their catalyst was used to activate PMS and PDS, finding that PMS is activated more efficiently than PDS [76]. Also, Xu et al, 2020, prepared and tested a nitrogen-doped biochar for the activation of H 2 O 2 , PDS, and PMS to degrade bisphenol A, reporting that the H 2 O 2 was not activated by the biochar, and the removal rate by PMS activation was higher than using PDS [77].…”

Section: Sonocarbocatalysis Processmentioning

confidence: 99%

Improvement of the Carbocatalytic Degradation of Pharmaceuticals in Water by the Use of Ultrasound Waves

Quimbaya-Ñañez,

Serna-Galvis,

Silva-Agredo

et al. 2023

Water

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A carbonaceous material obtained from wood wastes (SW-Mn) was initially used for the removal of pharmaceuticals in water by a carbocatalytic system. The SW-Mn material adsorbed only 41% of the diclofenac (DCF) and 3% of the valsartan (VAL). Interestingly, SW-Mn activated peroxymonosulfate (PMS) and presented a significant increase in the removal rate of DCF, surpassing 90%, while VAL achieved a 24% removal rate at 20 min of treatment. The carbonaceous material was not effective in activating peroxydisulfate or hydrogen peroxide. Nevertheless, the addition of ultrasound waves at 40 kHz to the carbocatalytic system (SW-Mn +PMS) significantly enhanced VAL degradation, exhibiting a high synergy index (4.98). The routes of the degradation were determined using scavengers, and XPS and EPR analyses, evidencing the main action of singlet oxygen in both carbocatalytic and sonocarbocatalytic systems. It is important to note that radicals also participated in the sonocarbocatalytic process, albeit with a minor contribution. The reuse of SW-Mn was tested during various cycles, showing up to a 39.2% VAL degradation rate after the third consecutive reuse. Moreover, the sonocarbocatalytic system was applied to a sample of irrigation crop water spiked with VAL. The treatment induced a partial elimination of the pollutant due to some interfering effects of the matrix components.

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Facile synthesis of NaA zeolite supported Co2Fe1 for highly efficient degradation of Acid Orange 7 by activation of peroxymonosulfate

Xu,

Liu,

Zhao

et al. 2023

Environ Sci Pollut Res

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The development of heterogeneous Co-based catalysts with an effective combination mode of Co/Fe and supporter, a facile synthetic method, and a low treatment costs is an important environment challenge for azo dyes degradation by peroxymonosulfate (PMS) activation. In this study, NaA zeolite supported Co x Fe y with various molar ratio of Fe/Si and Co/Fe was synthesized by a facile hydrothermal process, and used to activate PMS for Acid Orange 7 (AO7) degradation. NaA zeolite supported Co 2 Fe 1 with the Fe/Si molar ratio of 1:10 showed superior catalytic performance compared with other NaA zeolite supported Co x Fe y . In a system containing 0.6 g/L catalysts, 4 mM PMS, pH 5 and T = 30℃, 95.8% AO7 and 79.1% COD conversion could be achieved at 20 and 60 min, respectively, and the rst order kinetic rate constant reached 0.14795 min − 1 . Moreover, NaA zeolite supported Co 2 Fe 1 /PMS system exhibited excellent catalytic effect in a wide pH range of 3-9. Temperature had an obvious effect on AO7 degradation, and the activation energy was 31.36 kJ/mol. HCO 3 − demonstrated an obvious depression on AO7 degradation, while Cl − , SO 4 2− and H 2 PO 4 − had a relatively poor impact. Quenching experiments showed that both sulfate radicals (SO 4 •-) and hydroxyl radicals (•OH) were generated in the PMS reaction system, and the (SO 4 •-) was the dominant active radical. During 3 cycles experiments, an acceptable AO7 conversion ratio (91.8%) within 30 min was arrived, suggesting the good stability of NaA zeolite supported Co 2 Fe 1 .

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Efficient degradation of ibuprofen by Co/Fe@CNFs catalyst in the presence of peroxymonosulfate and persulfate: Characterization, performance, and mechanism comparison

Cited by 17 publications

References 41 publications

Efficient Activation of Peroxymonosulfate by Cobalt Supported Used Resin Based Carbon Ball Catalyst for the Degradation of Ibuprofen

Efficient Activation of Peroxymonosulfate by Cobalt Supported Used Resin Based Carbon Ball Catalyst for the Degradation of Ibuprofen

Improvement of the Carbocatalytic Degradation of Pharmaceuticals in Water by the Use of Ultrasound Waves

Facile synthesis of NaA zeolite supported Co2Fe1 for highly efficient degradation of Acid Orange 7 by activation of peroxymonosulfate

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