Highly efficient photocatalytic degradation of levofloxacin by novel S-scheme heterojunction Co3O4/Bi2MoO6@g-C3N4 hollow microspheres: performance, degradation pathway and mechanism

Wei, Hainan; Meng, Fanming; Yu, Wenqing; Li, Jialong; Zhang, Han

doi:10.1016/j.seppur.2023.123940

Cited by 31 publications

(5 citation statements)

References 62 publications

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“…For instance, Pham et al con structed S-scheme heterojunction α-Fe2O3/g-C3N4 nanocomposites that could efficiently degrade cephalexin and amoxicillin under visible light [154]. Meanwhile, Wei et al re ported for the first time an S-scheme heterojunction Co3O4/Bi2MoO6@g-C3N4 hollow mi crosphere that effectively promoted the separation of photogenerated electrons and holes due to the formation of internal electric field, and had a degradation rate of levofloxacin (LVFX) up to 95.21% under visible light irradiation [155]. In addition, it is worth noting In summary, the construction of a Z-scheme heterojunction is considered to be an effective modification method, which can improve the photocatalytic activity.…”

Section: Constructed Heterojunctionsmentioning

confidence: 99%

Photocatalytic Self-Fenton System of g-C3N4-Based for Degradation of Emerging Contaminants: A Review of Advances and Prospects

Chen

Yan

et al. 2023

Molecules

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The discharge of emerging pollutants in the industrial process poses a severe threat to the ecological environment and human health. Photocatalytic self-Fenton technology combines the advantages of photocatalysis and Fenton oxidation technology through the in situ generation of hydrogen peroxide (H2O2) and interaction with iron (Fe) ions to generate a large number of strong reactive oxygen species (ROS) to effectively degrade pollutants in the environment. Graphite carbon nitride (g-C3N4) is considered as the most potential photocatalytic oxygen reduction reaction (ORR) photocatalyst for H2O2 production due to its excellent chemical/thermal stability, unique electronic structure, easy manufacturing, and moderate band gap (2.70 eV). Hence, in this review, we briefly introduce the advantages of the photocatalytic self-Fenton and its degradation mechanisms. In addition, the modification strategy of the g-C3N4-based photocatalytic self-Fenton system and related applications in environmental remediation are fully discussed and summarized in detail. Finally, the prospects and challenges of the g-C3N4-based photocatalytic self-Fenton system are discussed. We believe that this review can promote the construction of novel and efficient photocatalytic self-Fenton systems as well as further application in environmental remediation and other research fields.

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Section: Constructed Heterojunctionsmentioning

confidence: 99%

Photocatalytic Self-Fenton System of g-C3N4-Based for Degradation of Emerging Contaminants: A Review of Advances and Prospects

Chen

Yan

et al. 2023

Molecules

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“…3c). 37 The O1s XPS spectra presented three component peaks with B.E of 530.0, 531.2, and 533.1 eV, which can be attributed to Bi-O, Mo-O, and surface hydroxyl radicals (O-H) of the Bi 2 MoO 6 component (Fig. S1, ESI †).…”

Section: Characterization Of the Bi 2 Moo 6 /Pcn Nanocompositesmentioning

confidence: 99%

Photocatalytic reduction of mono, di, and tri-nitrophenols over a Bi₂MoO₆/carbon nitride heterojunction

Cho,

Mon,

Vidyasagar

et al. 2023

New J. Chem.

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“…Hydroxyl radicals can also be produced through reactions with sulfate radicals and hydroxyl groups/water. Meanwhile, the photogenerated electrons can easily transfer to metal active species with the assistance of a carbon layer, while superoxide can also be generated through the reaction between the electrons and absorbed oxygen on the surface of the catalyst [13]. Then, the formation process of singlet 1 O 2 can be reasonably speculated that the reaction between Cu and In species with PMS could generate SO 5 − , and singlet oxygen ( 1 O 2 ) can be produced due to the reaction with water.…”

Section: Identification Of Reactive Species and Mechanism In The Processmentioning

confidence: 99%

“…Levofloxacin (LVF) is one of the most widely used antibiotics for disease control in medical applications [12]. However, residual LVF (usually trace concentrations) can be digested by animals and plants, leading to the contamination of soil, the water matrix, and seafood [13,14]. Hence, it is crucial to find environmentally friendly strategies to eradicate these residues from aqueous water matrices.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Degradation of Levofloxacin through Visible-Light-Driven Peroxymonosulfate Activation over CuInS2/g-C3N4 Heterojunctions

Zhong,

Ji,

et al. 2023

Nanomaterials

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In this work, the heterojunctions of CuInS2 embedded in the g-C3N4 materials (xCuInS2/g-C3N4, abbreviated as xCIS/GCN) was successfully prepared for peroxymonosulfate (PMS) activation under visible light. The catalysts are characterized by different techniques, such as XRD, FTIR, SEM, TEM, and UV-vis. The unique heterojunction composites can suppress the recombination of photogenerated pairs. The catalytic results showed that the 3CIS/GCN exhibited excellent catalytic levofloxacin (LVF) degradation efficiency, while more than 98.9% of LVF was removed in 60 min over a wide pH range. SO4•−, O2•−, OH•, and 1O2 were verified as the main reactive species for LVF degradation via the quenching experiments and electron paramagnetic resonance technology (EPR). The synergetic effect of xCIS/GCN, PMS, and visible light irradiation was discussed. The possible LVF degradation pathway was proposed through byproducts analysis (LC-MS). Moreover, the 3CIS/GCN/vis-PMS system has very low metal leaching. Owing to xCIS/GCN having good properties for PMS activation, it has potential applications for LVF or other hazardous pollutants degradation.

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Highly efficient photocatalytic degradation of levofloxacin by novel S-scheme heterojunction Co3O4/Bi2MoO6@g-C3N4 hollow microspheres: performance, degradation pathway and mechanism

Cited by 31 publications

References 62 publications

Photocatalytic Self-Fenton System of g-C3N4-Based for Degradation of Emerging Contaminants: A Review of Advances and Prospects

Photocatalytic Self-Fenton System of g-C3N4-Based for Degradation of Emerging Contaminants: A Review of Advances and Prospects

Photocatalytic reduction of mono, di, and tri-nitrophenols over a Bi₂MoO₆/carbon nitride heterojunction

Enhanced Degradation of Levofloxacin through Visible-Light-Driven Peroxymonosulfate Activation over CuInS2/g-C3N4 Heterojunctions

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Highly efficient photocatalytic degradation of levofloxacin by novel S-scheme heterojunction Co3O4/Bi2MoO6@g-C3N4 hollow microspheres: performance, degradation pathway and mechanism

Cited by 31 publications

References 62 publications

Photocatalytic Self-Fenton System of g-C3N4-Based for Degradation of Emerging Contaminants: A Review of Advances and Prospects

Photocatalytic Self-Fenton System of g-C3N4-Based for Degradation of Emerging Contaminants: A Review of Advances and Prospects

Photocatalytic reduction of mono, di, and tri-nitrophenols over a Bi2MoO6/carbon nitride heterojunction

Enhanced Degradation of Levofloxacin through Visible-Light-Driven Peroxymonosulfate Activation over CuInS2/g-C3N4 Heterojunctions

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Photocatalytic reduction of mono, di, and tri-nitrophenols over a Bi₂MoO₆/carbon nitride heterojunction