Visible-light-driven photocatalytic inactivation of MS2 by metal-free g-C3N4: Virucidal performance and mechanism

Li, Yang; Zhang, Chi; Shuai, Danmeng; Naraginti, Saraschandra; Wang, Dawei; Zhang, Wenlong

doi:10.1016/j.watres.2016.10.009

Cited by 158 publications

(79 citation statements)

References 50 publications

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“…More importantly, this mechanism can also be applied in the defence of viruses. Exhaustive viral death (Figure F,G) can be obtained from the breakage of RNA instead of surface proteins (Figure H) . In conclusion, improvements in disinfection activity based on this mechanism can be achieved by enlarging the specific surface area, minimizing the layer thickness, depositing uniformly distributed cocatalysts onto photocatalysts and inhibiting the recombination of e − /h + pairs.…”

Section: Synthesis Of Antimicrobic Nanomaterialsmentioning

confidence: 90%

Recent Advances in the Disinfection of Water Using Nanoscale Antimicrobial Materials

Miao

Teng

Wang

et al. 2018

Adv Materials Technologies

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The microbial contamination of water is highlighted as a global problem that threatens human life. Specifically, the lack of clean and safe water has resulted in a high number of deaths annually and thus poses a great challenge to humans. The traditional water purification methods typically consume high amounts of energy, exhibit low disinfection efficiency, and result in the production of toxic by‐products. Therefore, the development of methods for efficient water disinfection is of great significance. Nanomaterials have shown promising prospects in water disinfection due to their unique properties. Recent progress in the use of nanomaterials for water disinfection is summarized herein. The recently developed methods for the synthesis of antibacterial nanomaterials, including metallic nanoparticles, nanosized carbide and nitrides, are depicted, and the structures, morphologies, instincts, and performances of the nanomaterials in bactericidal tests are discussed. In addition, the antibacterial mechanisms and the dominant elements influencing the antimicrobial activities of the nanomaterials are reviewed in detail. Although recent years have shown remarkable progress in water disinfection using nanomaterials, the development of disinfection agents with improved nanoeffects and performance, low toxicity, increased cost efficiency, and easier operation remains urgent.

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Section: Synthesis Of Antimicrobic Nanomaterialsmentioning

confidence: 90%

Recent Advances in the Disinfection of Water Using Nanoscale Antimicrobial Materials

Miao

Teng

Wang

et al. 2018

Adv Materials Technologies

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“…To overcome the defects of pristine g‐C 3 N 4 , researchers mostly apply the method of introducing heterojunctions . With promising prospects, g‐C 3 N 4 inactivate not only bacteria, but also viruses, such as MS2 . Further investigations should be focused on the development of more efficient synthetic methods.…”

Section: D Antimicrobial Nanomaterialsmentioning

confidence: 99%

“…[110] With promising prospects, g-C 3 N 4 inactivate not only bacteria, but also viruses, such as MS2. [111] Further investigations should be focusedo nt he development of more efficient synthetic methods.…”

Section: Nitride-based Antibacterial Nanomaterialsmentioning

confidence: 99%

Recent Progress in Two‐Dimensional Antimicrobial Nanomaterials

Miao

Teng

Wang

et al. 2018

Chemistry A European J

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Nowadays, microorganisms, including bacteria and viruses, are regarded as new environmental pollutants and pose serious threats to public health. Yet, traditional disinfection approaches for bacteria and viruses are generally ineffective. Furthermore, they exhibit the disadvantages of high-energy consumption, environmental pollution, high cost, and toxic byproduct generation. In this respect, nanomaterials display promising antimicrobial capabilities due to their unique properties and provide solutions to the abovementioned issues. Herein, recent progress in the development of 2D nanomaterials displaying antimicrobial capabilities is highlighted. The structures, morphologies, and performances of essential metal, graphene, and nitride-based 2D antibacterial nanomaterials are summarized in detail. In addition, possible antimicrobial mechanisms and the relationship between structure and antimicrobial efficiency are elaborated.

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“…attributed the high disinfection performance to the low charge transfer resistance and short migration distance in the single layer . For viruses that are more resistant than bacteria, the activity and reusability of g‐C 3 N 4 were not inferior to commonly used visible‐response photocatalysts . Since the CB of g‐C 3 N 4 is negative enough, RSs generated by oxygen reduction on the CB, accompanied by h + in VB, collectively contribute to bacteria decomposition.…”

Section: Graphitic Carbon Nitride (G‐c3n4)‐based Photocatalysts For Wmentioning

confidence: 99%

“…74 For viruses that are more resistant than bacteria, the activity and reusability of g-C 3 N 4 were not inferior to commonly used visible-response photocatalysts. 75 Since the CB of g-C 3 N 4 is negative enough, RSs generated by oxygen reduction on the CB, accompanied by h + in VB, 76 collectively contribute to bacteria decomposition. In addition, the enlarged surface area due to the porous structure and sheet-like morphology enables enhanced disinfection properties of g-C 3 N 4 .…”

Section: Graphitic Carbon Nitride (G-c 3 N 4 )-Based Photocatalysts Fmentioning

confidence: 99%

Two‐dimensional nanomaterials for photocatalytic water disinfection: recent progress and future challenges

Liu

Zeng

et al. 2018

J of Chemical Tech & Biotech

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Photocatalysis has received ever‐growing attention as a promising alternative to traditional water treatment technologies for waterborne biohazard inactivation. Due to unique optical, electronic, physicochemical properties and feasibility of functional architecture assembly, two‐dimensional (2D) nanomaterials have become important in developing novel photocatalysts. This review summarizes the recent progress in configuring nanostructures with 2D materials as building blocks for photocatalytic water disinfection. In this review, five categories of 2D nanomaterials, that is, graphene, graphitic carbon nitride, 2D metal oxides and metallates, metal oxyhalides and transition metal dichalcogenides, for photocatalytic pathogen inactivation are introduced. First, the synthesis process, nanostructure engineering and disinfection performance of 2D‐based photocatalysts are reviewed in categories. In the following section, the bacteria destruction mechanism based on the generation and roles of reactive species (RSs) is presented. Moreover, the effects of the chemical characteristics of the water matrix on photocatalytic bactericidal performance are discussed. Finally, the challenges regarding the development and application of 2D‐based photocatalysts for highly efficient water sterilization are highlighted. © 2018 Society of Chemical Industry

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Visible-light-driven photocatalytic inactivation of MS2 by metal-free g-C3N4: Virucidal performance and mechanism

Cited by 158 publications

References 50 publications

Recent Advances in the Disinfection of Water Using Nanoscale Antimicrobial Materials

Recent Advances in the Disinfection of Water Using Nanoscale Antimicrobial Materials

Recent Progress in Two‐Dimensional Antimicrobial Nanomaterials

Two‐dimensional nanomaterials for photocatalytic water disinfection: recent progress and future challenges

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