CoFe2O4 decorated g-C3N4 nanosheets: New insights into superoxide anion mediated photomineralization of methylene blue

Ehsan, Muhammad Fahad; Fazal, Anam; Satha, Hamid; Arfan, Muhammad; Khan, Ibrahim; Usman, Muhammad; Shafiee, Ali; Ashiq, Muhammad Naeem

doi:10.1016/j.jece.2020.104556

Cited by 39 publications

(8 citation statements)

References 32 publications

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“…From the reported literature, it was found that Ti 3 C 2 and CG possess a specic surface area of 13 m 2 g −1 and 49.79 m 2 g −1 , respectively, which is comparatively lower than that of T-CG. 50,51 The higher surface area of T-CG was benecial for better charge transport during the process and ion adsorption. In addition, the mesoporous structure of the composite is convenient for better ion diffusion and H 2 /O 2 release on the HER and OER.…”

Section: Characterization Studiesmentioning

confidence: 99%

CoFe₂O₄/g-C₃N₄ intercalated Ti₃C₂ MXene for efficient electrocatalytic hydrogen evolution reaction

Mathew

Madhushree

Devi

2023

Sustainable Energy Fuels

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Section: Characterization Studiesmentioning

confidence: 99%

CoFe₂O₄/g-C₃N₄ intercalated Ti₃C₂ MXene for efficient electrocatalytic hydrogen evolution reaction

Mathew

Madhushree

Devi

2023

Sustainable Energy Fuels

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“…The size of environmental pollutants ranges from sub-nanometer (metals) to several nanometers (dyes) and even up to micrometer (bio-pollutants such as bacteria, etc.) [93,94]. Therefore, careful consideration should be given to designing COFs for specific purification applications.…”

Section: Pore Structurementioning

confidence: 99%

Structural Characteristics and Environmental Applications of Covalent Organic Frameworks

et al. 2021

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Covalent organic frameworks (COFs) are emerging crystalline polymeric materials with highly ordered intrinsic and uniform pores. Their synthesis involves reticular chemistry, which offers the freedom of choosing building precursors from a large bank with distinct geometries and functionalities. The pore sizes of COFs, as well as their geometry and functionalities, can be pre-designed, giving them an immense opportunity in various fields. In this mini-review, we will focus on the use of COFs in the removal of environmentally hazardous metal ions and chemicals through adsorption and separation. The review will introduce basic aspects of COFs and their advantages over other purification materials. Various fabrication strategies of COFs will be introduced in relation to the separation field. Finally, the challenges of COFs and their future perspectives in this field will be briefly outlined.

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“…Conventional heterojunctions, in which electrons are separated from holes by charge transfer, often have low redox potentials because active sites with high redox potentials are not retained [ 29 ]. In contrast, Z-scheme heterojunctions are depleted because of internal interactions between the materials, which result in the complexation of a specific fraction of electrons and holes, thus preserving the active sites with the highest redox potentials [ 30 , 31 ]. Zhang et al used mixing and programmed heating to synthesise Z-scheme KBiO 3 /g-C 3 N 4 heterojunction photocatalysts, which exhibited considerably improved photooxidative activity for the degradation of crystalline violet and phenol.…”

Section: Introductionmentioning

confidence: 99%

Synergistic Effects of Magnetic Z-Scheme g-C3N4/CoFe2O4 Nanofibres with Controllable Morphology on Photocatalytic Activity

Chen

Yang

et al. 2023

Nanomaterials

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The rational design of interfacial contacts plays a decisive role in improving interfacial carrier transfer and separation in heterojunction photocatalysts. In Z-scheme photocatalysts, the recombination of photogenerated electron–hole pairs is prevented so that the redox capacity is maintained. Here, one-dimensional graphitic carbon nitride (g-C3N4)/CoFe2O4 fibres were synthesised as a new type of magnetic Z-scheme visible-light photocatalyst. Compared with pure g-C3N4 and CoFe2O4, the prepared composite photocatalysts showed considerably improved performance for the photooxidative degradation of tetracycline and methylene blue. In particular, the photodegradation efficiency of the g-C3N4/CoFe2O4 fibres for methylene blue was approximately two and seven times those of g-C3N4 and CoFe2O4, respectively. The formation mechanism of the Z-scheme heterojunctions in the g-C3N4/CoFe2O4 fibres was investigated using photocurrent spectroscopy and electrochemical impedance spectroscopy. We proposed that one of the reasons for the improved photodegradation performance is that the charge transport path in one-dimensional materials enables efficient photoelectron and hole transfer. Furthermore, the internal electric field of the prepared Z-scheme photocatalyst enhanced visible-light absorption, which provided a barrier for photoelectron–hole pair recombination.

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CoFe2O4 decorated g-C3N4 nanosheets: New insights into superoxide anion mediated photomineralization of methylene blue

Cited by 39 publications

References 32 publications

CoFe₂O₄/g-C₃N₄ intercalated Ti₃C₂ MXene for efficient electrocatalytic hydrogen evolution reaction

CoFe₂O₄/g-C₃N₄ intercalated Ti₃C₂ MXene for efficient electrocatalytic hydrogen evolution reaction

Structural Characteristics and Environmental Applications of Covalent Organic Frameworks

Synergistic Effects of Magnetic Z-Scheme g-C3N4/CoFe2O4 Nanofibres with Controllable Morphology on Photocatalytic Activity

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CoFe2O4 decorated g-C3N4 nanosheets: New insights into superoxide anion mediated photomineralization of methylene blue

Cited by 39 publications

References 32 publications

CoFe2O4/g-C3N4 intercalated Ti3C2 MXene for efficient electrocatalytic hydrogen evolution reaction

CoFe2O4/g-C3N4 intercalated Ti3C2 MXene for efficient electrocatalytic hydrogen evolution reaction

Structural Characteristics and Environmental Applications of Covalent Organic Frameworks

Synergistic Effects of Magnetic Z-Scheme g-C3N4/CoFe2O4 Nanofibres with Controllable Morphology on Photocatalytic Activity

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CoFe₂O₄/g-C₃N₄ intercalated Ti₃C₂ MXene for efficient electrocatalytic hydrogen evolution reaction

CoFe₂O₄/g-C₃N₄ intercalated Ti₃C₂ MXene for efficient electrocatalytic hydrogen evolution reaction