Highly-efficient degradation of triclosan attributed to peroxymonosulfate activation by heterogeneous catalyst g-C3N4/MnFe2O4

Wang, Jing; Yue, Min; Han, Yu-Ze; Xu, Xin­guang

doi:10.1016/j.cej.2019.123554

Cited by 83 publications

(13 citation statements)

References 63 publications

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“…Therefore, the recovery and recycling of doped g-C 3 N 4 still remain a challenge. The relative position of the valence and conduction bands (with respect to eV versus NHE) of g-C 3 N 4 and various magnetic materials [90][91][92][93][94][95][96][97][98][99][100][101] is displayed in figure 6. Considering the above-mentioned challenges, the magnetic materials, e.g.…”

Section: Magnetic Materials As Potential Visible Light Photocatalystmentioning

confidence: 99%

“…From this perspective, we can conclude that the degree of magnetization plays a vital role in the isolation of catalysts without any significant loss even after successive runs. Table 4 provides information about various combinations of ferrites, and g-C 3 N 4 NCs, which were designed and executed for the purification of aqueous solutions consisting of numerous organic-inorganic contaminants [96,[249][250][251][252][253][254][255][256][257][258][259][260][261][262][263][264][265][266]. These magnetic heterojunctions display exciting properties, such as high SSA, enough magnetism, convenient particle size, effortless recovery and outstanding photocatalytic performance in various AOPs.…”

Section: Ferrites/ G-c 3 N 4 -Based Photocatalystmentioning

confidence: 99%

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Recent advancements of g-C₃N₄-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Das

Chowdhury

2021

Nanotechnology

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Heterogeneous photocatalysis premised on advanced oxidation processes has witnessed a broad application perspective, including water purification and environmental remediation. In particular, the graphitic carbon nitride (g-C3N4), an earth-abundant metal-free conjugated polymer, has acquired extensive application scope and interdisciplinary consideration owing to its outstanding structural and physicochemical properties. However, several issues such as the high recombination rate of the photo-generated electron–hole pairs, smaller specific surface area, and lower electrical conductivity curtail the catalytic efficacy of bulk g-C3N4. Another challenging task is separating the catalyst from the reaction medium, limiting their reusability and practical applications. Therefore, several methodologies are adopted strategically to tackle these issues. Attention is being paid, especially to the magnetic nanocomposites (NCs) based catalysts to enhance efficiency and proficient reusability property. This review summarizes the latest progress related to the design and development of magnetic g-C3N4-based NCs and their utilization in photocatalytic systems. The usefulness of the semiconductor heterojunctions on the catalytic activity, working mechanism, and degradation of pollutants are discussed in detail. The major challenges and prospects of using magnetic g-C3N4-based NCs for photocatalytic applications are highlighted in this report.

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Section: Magnetic Materials As Potential Visible Light Photocatalystmentioning

confidence: 99%

Section: Ferrites/ G-c 3 N 4 -Based Photocatalystmentioning

confidence: 99%

Recent advancements of g-C₃N₄-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Das

Chowdhury

2021

Nanotechnology

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“…These studies utilized the lone paired electrons of the N atom in CN to reduce Co(III) to Co(II), but the activation energy of the intermediate has not been decreased. Some previous studies demonstrated that the metal-CN composite induced SO 4 •– - or 1 O 2 - rather than Co(IV)O-dominated catalysis, , meaning that the conventional support modification was not able to ensure targeted construction of the Co(IV)O-dominated system. It was also found that inert CN was difficult to sustain electron reduction of metals.…”

Section: Introductionmentioning

confidence: 99%

“…•− -or 1 O 2 -rather than Co(IV) O-dominated catalysis, 12,13 meaning that the conventional support modification was not able to ensure targeted construction of the Co(IV)O-dominated system. It was also found that inert CN was difficult to sustain electron reduction of metals.…”

Section: ■ Introductionmentioning

confidence: 99%

Nitrogen Vacancy-Modulated Peroxymonosulfate Nonradical Activation for Organic Contaminant Removal via High-Valent Cobalt-Oxo Species

Jiang

Zhao

Gao

et al. 2022

Environ. Sci. Technol.

176

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Rapid generation of high-valent cobalt-oxo species (Co(IV)O) for the removal of organic contaminants has been challenging because of the low conversion efficiency of Co(III)/Co(II) and the high activation energy barrier of the Co(II)-oxidant complex. Herein, we introduced nitrogen (N) vacancies into graphite carbon nitride imbedded with cobalt carbonate (CCH/CN−V n ) in a peroxymonosulfate (PMS)/visible light system to break the limitations of a conventional twoelectron transfer path. These N vacancies enhanced the electron distribution of the Co 3d orbital and lowered the energy barrier to cleave the O−O bond of PMS in the Co(II)-PMS complex, achieving the modulation of major active species from 1 O 2 to Co(IV)O. The developed synergistic system that exhibited adsorption and oxidation showed remarkable selectivity and contaminant removal performance in inorganic (Cl − , NO 3 − , HCO 3 − , and HPO 4 − ) organic (HA) and even practical aqueous matrices (tap water and secondary effluent). This study provides a novel mechanistic perspective to modulate the nonradical path for refractory contaminant treatment via defect engineering.

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“…Solar-to-hydrogen conversion is recognized as an ideal approach for alleviating the energy and environmental problems caused by the growing scarcity of fossil fuels. − The development of highly active photocatalytic materials is crucial for efficient performance of photocatalytic hydrogen evolution reaction (HER). However, pure semiconductors always undergo fast electron–hole pair recombination, which leads to poor photocatalytic activity. − Developing efficient tactics to enhance the mobility of photoinduced carriers to improve the HER performance is still the focus of current research.…”

Section: Introductionmentioning

confidence: 99%

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

Sun

Dong

et al. 2023

ACS Sustainable Chem. Eng.

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Phase engineering and interface regulation are effective tactics to improve photocatalytic performance. Combining these two effects in one photocatalytic heterostructure is challenging but has yet to be achieved. In this paper, a 0D/2D photocatalytic heterostructure targeting efficient visible-light-driven H2 generation was constructed via a facile in situ hydrothermal approach, where 2D MoSe2 nanosheets with rich 1T-phase were tightly grown on the surface of 0D TiO2 nanoparticles. The synergy of the maximized cocatalytic effect of 1T-rich MoSe2 via phase engineering and the optimized contact interface with suitable interfacial barrier between the 1T-rich MoSe2 and TiO2 can accelerate the charge carrier separation to promote photocatalysis efficiency. Consequently, the H2 yield from pure water of the optimal TiO2/1T-rich MoSe2 hybrid was 17.0 mmol g–1, which was 77.6- and 20.0-times higher than that of pure TiO2 or a physical mixture of TiO2 and 1T-rich MoSe2, respectively. The H2 yield from seawater of the optimal TiO2/1T-rich MoSe2 also can reach 1.05 mmol g–1 h–1. This study proclaims the considerable synergistic effect of phase engineering and interface regulation in a photocatalytic system and provides a valuable thread for the construction of an efficient photocatalysts.

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Highly-efficient degradation of triclosan attributed to peroxymonosulfate activation by heterogeneous catalyst g-C3N4/MnFe2O4

Cited by 83 publications

References 63 publications

Recent advancements of g-C₃N₄-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Recent advancements of g-C₃N₄-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Nitrogen Vacancy-Modulated Peroxymonosulfate Nonradical Activation for Organic Contaminant Removal via High-Valent Cobalt-Oxo Species

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution

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Highly-efficient degradation of triclosan attributed to peroxymonosulfate activation by heterogeneous catalyst g-C3N4/MnFe2O4

Cited by 83 publications

References 63 publications

Recent advancements of g-C3N4-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Recent advancements of g-C3N4-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Nitrogen Vacancy-Modulated Peroxymonosulfate Nonradical Activation for Organic Contaminant Removal via High-Valent Cobalt-Oxo Species

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO2/1T-Rich MoSe2 Heterostructures for Efficient Photocatalytic Hydrogen Evolution

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Product

Resources

About

Recent advancements of g-C₃N₄-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Recent advancements of g-C₃N₄-based magnetic photocatalysts towards the degradation of organic pollutants: a review

Unravelling the Synergy between Phase Engineering and Interface Regulation in TiO₂/1T-Rich MoSe₂ Heterostructures for Efficient Photocatalytic Hydrogen Evolution