Bamboo-like N-doped carbon nanotube–confined cobalt as an efficient and robust catalyst for activating monopersulfate to degrade bisphenol A

Nguyen, Ha Trang; Lee, Jechan; Kwon, Eilhann E.; Lisak, Grzegorz; Bui, Xuan‐Thanh; Ghanbari, Farshid; Lin, Kun‐Yi Andrew

doi:10.1016/j.chemosphere.2021.130569

Cited by 51 publications

(14 citation statements)

References 80 publications

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“…Nevertheless, once HOCO and MPS were simultaneously added, notable patterns were particularly detected, which was attributed to DMPO-OH and DMPO-SO 4 adducts [44,45]. This further proves the generation of SO 4…”

Section: Identi Cation Of Ros Involved In Ars Degradationmentioning

confidence: 67%

Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S

Khiem

Tuan

Kwon

et al. 2022

Sustain Environ Res

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Azorubin S (ARS) represents one of the most common and frequently-utilized toxic azo dyes produced from industrial activities. While various conventional treatment techniques could not effectively eliminate ARS from water, heterogeneous metal-based catalyst coupled with monopersulfate (MPS) is a highly-efficient process for eliminating ARS, in which tricobalt tetroxide (Co3O4) has been attracted increasing attention as a preeminent MPS activator due to its outstanding physicochemical properties. However, the nanoscale Co3O4 particles usually pose a limitation of serious agglomeration in the aqueous environment, thus lowering their efficiency. Thus, developing an easy-synthesized and exceptionally efficient Co3O4-based catalyst is crucially paramount. Therefore, in this work, a special hollow-structured oval-like cobalt oxide (abbreviated as HOCO) was successfully constructed using Co-metal organic framework as a precursor, which was then utilized for catalyzing activation of MPS to degrade ARS. This as-obtained HOCO exhibited distinct physicochemical characteristics from commercially-available Co3O4, which subsequently resulted in superior activities for MPS activation in ARS degradation. Specifically, 100% of ARS could be degraded in 30 min with a corresponding reaction kinetic of 0.22 min− 1 by HOCO + MPS system. SO4•– radicals were validated to be primary reactive species for ARS degradation while the degradation pathway of ARS was also elucidated. This study further provides insightful information about the development of novel hollow-structured Co3O4-based catalyst for catalyzing activation of MPS to remove toxic dyes from water.

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Section: Identi Cation Of Ros Involved In Ars Degradationmentioning

confidence: 67%

Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S

Khiem

Tuan

Kwon

et al. 2022

Sustain Environ Res

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“…Activation of PDS and PMS using a homogeneous method generates a large amount of insoluble sludge that requires subsequent tertiary treatment. In comparison, heterogeneous activation of persulfates, using different transition metal based catalysts, i.e., oxides, 52 doped carbon nitrides, 53 doped graphene derivatives, 54 metal organic frameworks, 55 MXene, 56 and doped naturally occurring materials, 57,58 is an efficient alternative with excellent potential towards mineralization of aqueous solution of organic contaminants. Bismuth sulfide (Bi 2 S 3 ) is a typical hierarchically arranged layered photocatalyst [59][60][61] which can be grown on a porous MIL-100(Fe) support to generate MIL-BS binary composites.…”

Section: Introductionmentioning

confidence: 99%

Photocatalytic degradation of rhodamine-B by visible light assisted peroxymonosulfate activation using the Z-scheme MIL-100(Fe)/Bi₂S₃ composite: a combined experimental and theoretical approach

Roy

Poddar²,

Singh

et al. 2022

New J. Chem.

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“…Recently, nitrogen-doped carbon-coated metal catalysts, metal–organic framework (MOF)-derived catalysts, and single-atom transition-metal catalysts (SA-M) have shown good catalytic activity. − Among them, SA-M showed the highest atomic utilization efficiency. For SA-Fe, FeN 4 sites were identified as active sites during the process of peroxymonosulfate (PMS) activation. , But FeN 4 was unfavorable for the adsorption of intermediate products due to the high electronegativity of the plane-symmetric N atoms around the Fe atom .…”

Section: Introductionmentioning

confidence: 99%

Iron-Based Dual Active Site-Mediated Peroxymonosulfate Activation for the Degradation of Emerging Organic Pollutants

Wang

2021

Environ. Sci. Technol.

126

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It is still a challenge to synthesize highly efficient and stable catalysts for the Fenton-like reaction. In this study, we constructed an integrated catalyst with highly dispersed iron-based dual active sites, in which Fe2N and single-atom Fe (SA-Fe) were embedded into nitrogen- and oxygen-co-doped graphitic carbon (Fe-N-O-GC-350). Extended X-ray absorption fine structure (EXAFS) confirmed the coordination structure of iron, and line combination fitting (LCF) demonstrated the coexistence of Fe2N and SA-Fe with percentages of 75 and 25%, respectively. Iron-based dual active sites endowed Fe-N-O-GC-350 with superior catalytic activity to activate peroxymonosulfate (PMS) as evidenced by the fast degradation rate of sulfamethoxazole (SMX) (0.24 min–1) in the presence of 0.4 mM PMS and 0.1 g/L Fe-N-O-GC-350. Unlike the reported singlet oxygen and high-valent iron oxo-mediated degradation induced by the SA-Fe catalyst, both surface-bound reactive species and singlet oxygen contributed to SMX degradation, while surface-bound reactive species dominated. Density functional theory (DFT) simulation indicated that Fe2N and SA-Fe enhanced the adsorption of PMS, which played a key role in PMS activation. The Fe-N-O-GC-350/PMS system had resistance to the interference of common inorganic anions and high oxidation capacity to recalcitrant organic contaminants. This study elucidated the important role of Fe2N in PMS activation and provide a clue to design rationally catalysts with iron-based dual active sites to activate PMS for the degradation of emerging organic pollutants.

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Bamboo-like N-doped carbon nanotube–confined cobalt as an efficient and robust catalyst for activating monopersulfate to degrade bisphenol A

Cited by 51 publications

References 80 publications

Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S

Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S

Photocatalytic degradation of rhodamine-B by visible light assisted peroxymonosulfate activation using the Z-scheme MIL-100(Fe)/Bi₂S₃ composite: a combined experimental and theoretical approach

Iron-Based Dual Active Site-Mediated Peroxymonosulfate Activation for the Degradation of Emerging Organic Pollutants

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Bamboo-like N-doped carbon nanotube–confined cobalt as an efficient and robust catalyst for activating monopersulfate to degrade bisphenol A

Cited by 51 publications

References 80 publications

Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S

Hollow and oval-configured ultrafine Co3O4 as a highly-efficient activator of monopersulfate for catalytic elimination of Azorubin S

Photocatalytic degradation of rhodamine-B by visible light assisted peroxymonosulfate activation using the Z-scheme MIL-100(Fe)/Bi2S3 composite: a combined experimental and theoretical approach

Iron-Based Dual Active Site-Mediated Peroxymonosulfate Activation for the Degradation of Emerging Organic Pollutants

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Photocatalytic degradation of rhodamine-B by visible light assisted peroxymonosulfate activation using the Z-scheme MIL-100(Fe)/Bi₂S₃ composite: a combined experimental and theoretical approach