Nitrogen-containing carbon hollow nanocube-confined cobalt nanoparticle as a magnetic and efficient catalyst for activating monopersulfate to degrade a UV filter in water

Tuan, Duong Dinh; Kwon, Eilhann E.; Phattarapattamawong, Songkeart; Bui, Xuan‐Thanh; Khiem, Ta Cong; Lisak, Grzegorz; Wang, Haitao; Lin, Kun‐Yi Andrew

doi:10.1016/j.jece.2021.106989

Cited by 17 publications

(7 citation statements)

References 70 publications

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“…The fraction of Co 2+ seemed smaller in the spent FCCM, whereas the fraction of Cu + also became relatively low in the spent FCCM. These variations were consistent with the reported mechanism of Oxone activation, in which metal species mediate Oxone activation through the transformation of valences of metal species as follows [51,52]:…”

Section: Reusability Of the Fccm And The Activation Mechanism Of The ...supporting

confidence: 91%

Modulating Direct Growth of Copper Cobaltite Nanostructure on Copper Mesh as a Hierarchical Catalyst of Oxone Activation for Efficient Elimination of Azo Toxicant

et al. 2022

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As cobalt (Co) has been the most useful element for activating Oxone to generate SO4•−, this study aims to develop a hierarchical catalyst with nanoscale functionality and macroscale convenience by decorating nanoscale Co-based oxides on macroscale supports. Specifically, a facile protocol is proposed by utilizing Cu mesh itself as a Cu source for fabricating CuCo2O4 on Cu mesh. By changing the dosages of the Co precursor and carbamide, various nanostructures of CuCo2O4 grown on a Cu mesh can be afforded, including nanoscale needles, flowers, and sheets. Even though the Cu mesh itself can be also transformed to a Cu-Oxide mesh, the growth of CuCo2O4 on the Cu mesh significantly improves its physical, chemical, and electrochemical properties, making these CuCo2O4@Cu meshes much more superior catalysts for activating Oxone to degrade the Azo toxicant, Acid Red 27. More interestingly, the flower-like CuCo2O4@Cu mesh exhibits a higher specific surface area and more superior electrochemical performance, enabling the flower-like CuCo2O4@Cu mesh to show the highest catalytic activity for Oxone activation to degrade Acid Red 27. The flower-like CuCo2O4@Cu mesh also exhibits a much lower Ea of Acid Red 27 degradation than the reported catalysts. These results demonstrate that CuCo2O4@Cu meshes are advantageous heterogeneous catalysts for Oxone activation, and especially, the flower-like CuCo2O4@Cu mesh appears as the most effective CuCo2O4@Cu mesh to eliminate the toxic Acid Red 27.

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Section: Reusability Of the Fccm And The Activation Mechanism Of The ...supporting

confidence: 91%

Modulating Direct Growth of Copper Cobaltite Nanostructure on Copper Mesh as a Hierarchical Catalyst of Oxone Activation for Efficient Elimination of Azo Toxicant

et al. 2022

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“…S6† shows the O 1s XPS spectrum of H-Co@NC, in which two peaks were observed at 529.8 eV and 531.6 eV, ascribed to the C–O and metal–O bonds, respectively. 31…”

Section: Resultsmentioning

confidence: 99%

“…49 Moreover, abundant H + in an acidic medium may also scavenge SO 4 ˙ − and ˙OH via the following equations (eqn (4) and (5)), hence decreasing CIP degradation efficiency. 31,50 H + + ˙OH + e − → H 2 OH + + SO 4 ˙ − + e − → HSO 4 − …”

Section: Resultsmentioning

confidence: 99%

“…S6 † shows the O 1s XPS spectrum of H-Co@NC, in which two peaks were observed at 529.8 eV and 531.6 eV, ascribed to the C-O and metal-O bonds, respectively. 31 On the other hand, since H-Co@NC contains Co 0 , making it a magnetically-responsive material, it was interesting to further explore its magnetization. As illustrated in Fig.…”

Section: Environmental Science: Water Research and Technology Papermentioning

confidence: 99%

“…[25][26][27][28][29][30] Owing to its easy separation, heterogeneous catalysts have been favorably employed for Oxone activation, in which cobalt-based catalysts have been confirmed as the most efficacious materials for activating Oxone in water. 20,31 Nevertheless, the ongoing exploration of exceptionally advantageous cobaltic materials is still necessitated to optimize Co-based heterogeneous catalysts for Oxone activation in degradation of CIP.…”

Section: Introductionmentioning

confidence: 99%

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Emerging investigator series: enhancing the degradation of ciprofloxacin in water using Oxone activated by urchin-like cubic and hollow-structured cobalt@N-doped carbon prepared by etching-engineering: a comparative study with mechanistic and eco-toxic assessments

Duong

Park

Wen

et al. 2023

Environ. Sci.: Water Res. Technol.

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A Co@C Catalyst Derived from a Cobalt‐Based Metal Organic Framework with Enhanced Activation of Peroxymonosulfate for Degradation of Organic Pollutants

Xiang,

Pan,

Han

et al. 2023

ChemistrySelect

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Cobalt‐based catalysts are widely used as efficient activator for the activation of peroxymonosulfate (PMS). A new carbon enclosed magnetic metal cobalt (Co@C) catalyst was successfully synthesized by high‐temperature pyrolysis of cobalt‐based metal‐organic framework. The prepared Co@C catalyst demonstrated remarkable catalytic activity for the degradation of contaminants (99.9 % for tetracycline (TC) degradation within 10 min). The TC degradation efficiency could still sustain more than 99 % after three cycles. Moreover, the Co@C/PMS system exhibited great universality for the rapid removal of other dyes such as methyl orange (MO) and methylene blue (MB). The zero‐valent cobalt was engaged in the activation of the PMS and reacted with O2 to form Co2+, to make sure that there was enough Co2+ to activate PMS to generate Co3+. Simultaneously, the produced Co3+ ions extracted electrons out of , driving a Co0/Co2+/Co3+ circulation to keep the high efficiency for rapid degradation of TC. In summary, this work offers a novel strategy to develop an effective magnetic heterogeneous catalyst to activate PMS for the elimination of difficult to degrade contaminants.

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Nitrogen-containing carbon hollow nanocube-confined cobalt nanoparticle as a magnetic and efficient catalyst for activating monopersulfate to degrade a UV filter in water

Cited by 17 publications

References 70 publications

Modulating Direct Growth of Copper Cobaltite Nanostructure on Copper Mesh as a Hierarchical Catalyst of Oxone Activation for Efficient Elimination of Azo Toxicant

Modulating Direct Growth of Copper Cobaltite Nanostructure on Copper Mesh as a Hierarchical Catalyst of Oxone Activation for Efficient Elimination of Azo Toxicant

Emerging investigator series: enhancing the degradation of ciprofloxacin in water using Oxone activated by urchin-like cubic and hollow-structured cobalt@N-doped carbon prepared by etching-engineering: a comparative study with mechanistic and eco-toxic assessments

A Co@C Catalyst Derived from a Cobalt‐Based Metal Organic Framework with Enhanced Activation of Peroxymonosulfate for Degradation of Organic Pollutants

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