Synergetic activation of peroxymonosulfate by Co3O4 modified g-C3N4 for enhanced degradation of diclofenac sodium under visible light irradiation

Shao, Huixin; Zhao, Xu; Wang, Yanbin; Mao, Ran; Qiao, Meng; Zhao, Shen; Zhu, Yongfa

doi:10.1016/j.apcatb.2017.07.016

Cited by 276 publications

(80 citation statements)

References 41 publications

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“…Furthermore, the DMPO‐·OH and DMPO‐SO 4 ∙− signals of the Co 3 O 4 /CNNS‐1100+vis+PMS systems are significantly stronger than that of the Co 3 O 4 /CNNS‐1100+vis system, revealing that ·OH and SO 4 ∙− are involved in the PMS activation . The results also confirmed that more·OH radical species could be generated in Co 3 O 4 /CNNS‐1100+vis+PMS systems, due to the holes in Co 3 O 4 /CNNS were not capable of oxidizing OH − or H 2 O into ∙OH (OH − + h + → ∙OH or H 2 O + h + →∙OH + H + ) .…”

Section: Resultsmentioning

confidence: 99%

“…Recently, several methods have been demonstrated to realize a rational combination of Co 3 O 4 on g‐C 3 N 4 for water treatment. For example, Zhao and co‐workers adopted thermal polycondensation approach to synthesize the Co 3 O 4 ‐g‐C 3 N 4 composites for diclofenac sodium removal in the presence of PMS . Ge and co‐workers synthesized Co 3 O 4 ‐g‐C 3 N 4 heterojunction via a facile mixing‐and‐heating method and used as photocatalyst to degrade methyl orange (MO) .…”

Section: Introductionmentioning

confidence: 90%

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Strongly Coupled g‐C₃N₄ Nanosheets‐Co₃O₄ Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation

Gao

Yang

et al. 2018

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310

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The development of effective approaches for the preparation of 0D quantum dots (QDs)/2D nanosheets (NSs) heterostructures, which have been proven to be favorable for heterogeneous catalysis, is highly desirable but remains a great challenge. Herein, 0D metal oxide nanocrystals-2D ultrathin g-C N nanosheets (Co O /CNNS) heterostructures are synthesized via a facile chemical reaction, followed by annealing in air. Ultrafine Co O QDs (≈2.2-3.2 nm) are uniformly and tightly attached on the surface of g-C N nanosheets. Detailed characterization reveals that the specially designed unique 0D/2D structure is critical to the high photocatalytic performance for the degradation of tetracycline (TC) via peroxymonosulfate (PMS) activation. The optimal catalyst, namely, Co O /CNNS-1100, exhibits excellent performance and ≈98.7% TC can be degraded under visible light irradiation. Moreover, TC degradation is almost completely insusceptible to several real water samples. Meanwhile, other dye pollutants can also be efficiently degraded by the Co O /CNNS-1100/PMS/vis system. The quenching tests display that that the h , ∙OH, O , and SO are responsible for TC removal. The improved photocatalytic performance can be attributed to the synergistic effect of the photocatalytic- and chemical-processes in the PMS activation. This work gives an insight into the development of multifunctional 0D/2D nanocomposites for further potential applications which are not limited to environmental purification.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 90%

Strongly Coupled g‐C₃N₄ Nanosheets‐Co₃O₄ Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation

Gao

Yang

et al. 2018

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310

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“…The LCLC resonant converter with fixed-frequency fixed-duty cycle as a DC transformer is widely used in the second stage of a two-stage converter [16]. There are four resonant elements in the resonant tank: Lr, Cs, Lm and Cp.…”

Section: Testing Of the Planar Transformer In An Lclc Resonant Conmentioning

confidence: 99%

“…Take the LCLC resonant converter as an example [16], the energy to charge or discharge C p is mainly provided by L m . With higher C p , the energy required for the charging or discharging will increase, which will increase the conduction loss.…”

Section: Ieee Transactions On Industrial Electronicsmentioning

confidence: 99%

An Improved Partially Interleaved Transformer Structure for High-Voltage High-Frequency Multiple-Output Applications

Zhao

Ouyang

Duffy

et al. 2019

IEEE Trans. Ind. Electron.

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Abstract-This paper proposes an improved partially interleaved structure for high-voltage (several kV) high-frequency (several hundred kHz) multiple-output applications. The proposed transformer structure is compared with other typical structures with the leakage inductance, AC capacitance, AC resistance and the ratio of AC/DC resistance taken into consideration. The proposed structure features lower leakage inductance, smaller AC capacitance, lower AC resistance and lower ratio of AC-DC resistance, which is suitable for high-frequency high-efficiency applications. A planar transformer with the proposed structure was built and tested in an LCLC resonant converter, where the input voltage is 40 V, output is 4800 V, switching frequency is 500 kHz, the output power is 288 W and the efficiency is 96.8%, which validates the analysis.Index Terms-high-voltage, high-frequency, improved partially interleaved structure, multiple-output, planar transformer

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“…10) with fixedfrequency fixed-duty cycle is widely used in the second stage of a two-stage converter [12,13] . There are four resonant elements in the resonant tank: series resonant inductance (Lr), series resonant capacitance (Cs), parallel resonant inductance (Lm) and parallel resonant capacitance (Cp).…”

Section: B Test Of the Lclc Resonant Convertermentioning

confidence: 99%

An improved partially interleaved transformer structure for high-voltage high-frequency multiple-output applications

Zhao

Ouyang

Anderson

et al. 2017

IECON 2017 - 43rd Annual Conference of the IEEE Industrial Electronics Society

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Abstract-This paper proposes an improved partially interleaved structure for high-voltage (Several kV) highfrequency (Several hundred kHz) multiple output applications. Six structures are compared with the leakage inductance, AC capacitance and the rate of AC/DC resistance taken into consideration. The proposed structure features lower leakage inductance, smaller AC capacitance and lower rate of AC-DC resistance, which is suitable for high-frequency high-efficiency applications. A planar transformer with the proposed structure was built and tested in an LCLC resonant converter, where the input voltage is 40V, output is 4800V, switching frequency 500 kHz and the efficiency is 96.8%, which validates the analysis.

show abstract

Synergetic activation of peroxymonosulfate by Co3O4 modified g-C3N4 for enhanced degradation of diclofenac sodium under visible light irradiation

Cited by 276 publications

References 41 publications

Strongly Coupled g‐C₃N₄ Nanosheets‐Co₃O₄ Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation

Strongly Coupled g‐C₃N₄ Nanosheets‐Co₃O₄ Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation

An Improved Partially Interleaved Transformer Structure for High-Voltage High-Frequency Multiple-Output Applications

An improved partially interleaved transformer structure for high-voltage high-frequency multiple-output applications

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Synergetic activation of peroxymonosulfate by Co3O4 modified g-C3N4 for enhanced degradation of diclofenac sodium under visible light irradiation

Cited by 276 publications

References 41 publications

Strongly Coupled g‐C3N4 Nanosheets‐Co3O4 Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation

Strongly Coupled g‐C3N4 Nanosheets‐Co3O4 Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation

An Improved Partially Interleaved Transformer Structure for High-Voltage High-Frequency Multiple-Output Applications

An improved partially interleaved transformer structure for high-voltage high-frequency multiple-output applications

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Product

Resources

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Strongly Coupled g‐C₃N₄ Nanosheets‐Co₃O₄ Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation

Strongly Coupled g‐C₃N₄ Nanosheets‐Co₃O₄ Quantum Dots as 2D/0D Heterostructure Composite for Peroxymonosulfate Activation