Sustainable and solar light assisted photocatalytic degradation of MB and MG dyes by Co3O4/g-C3N4 nanocomposite

Pradhan, Debapriya; Mohanty, Lopamudra; Singhal, Rahul; Falletta, Ermelinda; Dash, Suresh Kumar

doi:10.1016/j.inoche.2023.111259

Inorganic Chemistry Communications

2023

DOI: 10.1016/j.inoche.2023.111259

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Sustainable and solar light assisted photocatalytic degradation of MB and MG dyes by Co3O4/g-C3N4 nanocomposite

Debapriya Pradhan,

Lopamudra Mohanty,

Rahul Singhal

et al.

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2024

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Cited by 14 publications

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Gas‐Phase Photocatalytic Coprocessing of CO₂ – H₂O_(v) to Energy Products Promoted by the n,n‐Junction In₂O₃@g‐C₃N₄ under VIS‐Light

Baran,

Aresta,

Comparelli

et al. 2024

ChemSusChem

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Carbon dioxide capture and utilization is a strategic technology for moving away from fossil‐C. The conversion of CO2 into fuels demands energy and hydrogen that cannot be sourced from fossil‐C. Co‐processing of CO2 and water under solar irradiation will have a key role in the long‐term for carbon‐recycling and energy products production. This article discusses the synthesis, characterization and application of the two‐phase composite photocatalyst, In2O3@g‐C3N4, formed by thermal condensation of melamine in the presence of indium(III)nitrate. The composite exhibits a n,n‐heterojunction between two n‐type semiconductors, g‐C3N4 and In2O3, leading to a more efficient charge separation. The composite has a flat band potential enabling it to effectively catalyze the reduction of CO2 in the gas phase to produce CO, CH4 and CH3OH. While the composite's overall photocatalytic efficiency is comparable to that of neat g‐C3N4, its ability to promote multielectron‐transfer and Proton Coupled to Electron Transfer (PCET) suggests that there is a potential for further optimization of its properties. The use of labelled 13CO2 has allowed us to clearly exclude that the reduced species are derived from the photocatalyst decomposition or the degradation of contaminants.

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Gas‐Phase Photocatalytic Coprocessing of CO₂ – H₂O_(v) to Energy Products Promoted by the n,n‐Junction In₂O₃@g‐C₃N₄ under VIS‐Light

Baran,

Aresta,

Comparelli

et al. 2024

ChemSusChem

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Two‐Dimensional Copper‐Based Metal‐Organic Framework for Efficient Removal of Methylene Blue from Wastewater

Li,

Huang,

Guo

et al. 2024

Eur J Inorg Chem

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Metal‐organic frameworks (MOFs) can effectively remove methylene blue (MB) from wastewater due to their abundant adsorption sites and multi‐level pores. In this paper, a copper‐based MOF: {[Cu·(L)·(H2O)]·(DMF)}n (1) (H2L = 2‐hydroxyterephthalic acid; DMF = N,N‐dimethylformamide), was synthesized by hydrothermal synthesis method. X‐ray single crystal diffraction showed that a two‐dimensional structure was formed by the carboxyl group of L2‐ in 1 took μ2‐η1：η1 bridged two adjacent Cu(II). In this two‐dimensional structure, the coordinated water molecules and hydroxyl group on L2‐ were distributed on the surface of 1. Thus, it had abundant adsorption sites. The transmission electron microscopy (TEM) of copper‐based MOF nano adsorbent showed that the particle diameter of the nano adsorbent prepared by a cell fragmentation apparatus was about 50 nm. The performance of the copper‐based MOF nano adsorbent in adsorbing MB indicated that the optimal adsorbent dosage was 0.20 g/L and the solution pH was 6. Under the optimal experimental conditions, its maximum adsorption capacity for MB was 143.3 mg/g, which was superior to most MOFs adsorbents. The adsorption thermodynamic analysis showed that the copper‐based MOF nano adsorbent at 25 ‐ 45 ℃ was an exothermic (△H < 0) , and spontaneous (△G < 0) process.

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Photocatalytic Degradation of 1,2,4-Trichlorobenzene by Co3O4 under Visible Light: Kinetics and Mechanism

He,

Peng,

Ren

et al. 2024

Water Air Soil Pollut

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Sustainable and solar light assisted photocatalytic degradation of MB and MG dyes by Co3O4/g-C3N4 nanocomposite

Cited by 14 publications

References 56 publications

Gas‐Phase Photocatalytic Coprocessing of CO₂ – H₂O_(v) to Energy Products Promoted by the n,n‐Junction In₂O₃@g‐C₃N₄ under VIS‐Light

Gas‐Phase Photocatalytic Coprocessing of CO₂ – H₂O_(v) to Energy Products Promoted by the n,n‐Junction In₂O₃@g‐C₃N₄ under VIS‐Light

Two‐Dimensional Copper‐Based Metal‐Organic Framework for Efficient Removal of Methylene Blue from Wastewater

Photocatalytic Degradation of 1,2,4-Trichlorobenzene by Co3O4 under Visible Light: Kinetics and Mechanism

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Sustainable and solar light assisted photocatalytic degradation of MB and MG dyes by Co3O4/g-C3N4 nanocomposite

Cited by 14 publications

References 56 publications

Gas‐Phase Photocatalytic Coprocessing of CO2 – H2O(v) to Energy Products Promoted by the n,n‐Junction In2O3@g‐C3N4 under VIS‐Light

Gas‐Phase Photocatalytic Coprocessing of CO2 – H2O(v) to Energy Products Promoted by the n,n‐Junction In2O3@g‐C3N4 under VIS‐Light

Two‐Dimensional Copper‐Based Metal‐Organic Framework for Efficient Removal of Methylene Blue from Wastewater

Photocatalytic Degradation of 1,2,4-Trichlorobenzene by Co3O4 under Visible Light: Kinetics and Mechanism

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Product

Resources

About

Gas‐Phase Photocatalytic Coprocessing of CO₂ – H₂O_(v) to Energy Products Promoted by the n,n‐Junction In₂O₃@g‐C₃N₄ under VIS‐Light

Gas‐Phase Photocatalytic Coprocessing of CO₂ – H₂O_(v) to Energy Products Promoted by the n,n‐Junction In₂O₃@g‐C₃N₄ under VIS‐Light