Built-in electric field mediated peroxymonosulfate activation over biochar supported-Co3O4 catalyst for tetracycline hydrochloride degradation

Xiong, Minghui; Yan, Juntao; Fan, Guozhi; Liu, Yanyu; Chai, Bo; Wang, Chunlei; Song, Guangsen

doi:10.1016/j.cej.2022.136589

Cited by 84 publications

(7 citation statements)

References 71 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This was due to the fact that Cl − could react with ˙OH/SO 4 ˙ − or HSO 5 − to form Cl• with lower activity (eqn (4–9)). 24,25 While for the reaction system containing SO 4 2− , 64.63% of MB was degraded within 40 min and the k was 0.0262 min −1 . The slight restraint of MB degradation by SO 4 2− might be due to the large amount of SO 4 2− in the solution consuming the generated free radicals according to eqn (10).…”

Section: Resultsmentioning

confidence: 97%

See 1 more Smart Citation

Fabrication of a Co₃O₄ monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

et al. 2023

View full text Add to dashboard Cite

show abstract

Section: Resultsmentioning

confidence: 97%

“…This was due to the fact that Cl À could react with OH/SO 4 À or HSO 5 À to form Cl with lower activity (eqn (4-9)). 24,25 While for the reaction system containing SO 4…”

Section: Influence Of Water Matrix On Mb Removalmentioning

confidence: 99%

Fabrication of a Co₃O₄ monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

et al. 2023

View full text Add to dashboard Cite

show abstract

“…However, this situation seems to change in the activation of the nonradical pathway. Xiong et al synthesized a biochar (BC)-wrapped ultrafine Co 3 O 4 composite and calculated that the work functions of BC, Co 3 O 4 , and Co 3 O 4 /BC were 5.45, 5.56, and 5.50 eV, respectively, which confirmed that there was a built-in electric field at the interface of the Co 3 O 4 /BC composite. The aggregation and dissipation of electrons in the CDD diagram explained the electron flow direction (Figure b).…”

Section: Theoretical Calculation Of Pms-aops Involving Cobalt-based H...mentioning

confidence: 99%

Section: Theoretical Calculation Of Pms-aops Involving Cobalt-based H...mentioning

confidence: 99%

Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds

et al. 2023

View full text Add to dashboard Cite

Persulfate based advanced oxidation processes (PS-AOPs) have been regarded as a mainstream degradation technology of organic compounds due to their high efficiency in wastewater treatment. In particular, peroxymonosulfate (PMS) has a unique structure and chemical properties, which can be efficiently activated by Co-based catalysts to produce active species with a high oxidation potential. These active species usually determine the subsequent degradation of organic compounds in an efficient process, while the intrinsic reaction mechanism behind this complex process remains unclear and therefore impedes the continual development in this scientific community. Recently, density functional theory (DFT) calculations have emerged as a powerful means to identify the electronic properties and distinguish energy changes in the PMS activation system. With the assistance of this quantum calculation, increasing investigations have been conducted focusing on explaining the phenomenon that occurred in experiments. However, these calculations mainly contributed in part to the reaction mechanism of PMS activation by Co-based catalysts and sometimes even differ from each other, lacking a comprehensive summary based on DFT calculation results. In this review, we introduce the main uses of DFT in the catalytic activation of PMS, provide recent application of calculation examples of Co-based heterogeneous catalysts with different structures, and then discuss the mechanism of PMS activation in detail. Finally, the research results of the DFT method in this field are summarized, and the future research focus and challenges are put forward, which is conducive to guiding the practical design of Co-based catalysts and further application of PS-AOPs in creating value products.

show abstract

“…This phenomenon was due to the fact that Cl À or HCO 3 À could react with HSO 5 À to produce free radicals with much weaker oxidation capacity. 45,46 Fig. 7 Effect of process parameters on MB degradation: (a) dosage of catalyst, (b) amount of PMS, and (c) coexisting inorganic anions.…”

Section: àmentioning

confidence: 99%

Enhanced catalytic performance of Co₃O₄/Eu₂O₃ with sulfur-modification in activating peroxymonosulfate for removal of methylene blue

Shen,

Wei,

Xia

et al. 2024

New J. Chem.

View full text Add to dashboard Cite

show abstract

Built-in electric field mediated peroxymonosulfate activation over biochar supported-Co3O4 catalyst for tetracycline hydrochloride degradation

Cited by 84 publications

References 71 publications

Fabrication of a Co₃O₄ monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

Fabrication of a Co₃O₄ monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds

Enhanced catalytic performance of Co₃O₄/Eu₂O₃ with sulfur-modification in activating peroxymonosulfate for removal of methylene blue

Contact Info

Product

Resources

About

Built-in electric field mediated peroxymonosulfate activation over biochar supported-Co3O4 catalyst for tetracycline hydrochloride degradation

Cited by 84 publications

References 71 publications

Fabrication of a Co3O4 monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

Fabrication of a Co3O4 monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

Current Mechanism of Peroxymonosulfate Activation by Cobalt-Based Heterogeneous Catalysts in Degrading Organic Compounds

Enhanced catalytic performance of Co3O4/Eu2O3 with sulfur-modification in activating peroxymonosulfate for removal of methylene blue

Contact Info

Product

Resources

About

Fabrication of a Co₃O₄ monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

Fabrication of a Co₃O₄ monolithic membrane catalyst as an efficient PMS activator for the removal of methylene blue

Enhanced catalytic performance of Co₃O₄/Eu₂O₃ with sulfur-modification in activating peroxymonosulfate for removal of methylene blue