Enhanced photocatalytic inactivation of Escherichia coli by a novel Z-scheme g-C 3 N 4 /m-Bi 2 O 4 hybrid photocatalyst under visible light: The role of reactive oxygen species

Xia, Dehua; Wang, Wanjun; Yin, Ran; Jiang, Zhifeng; An, Taicheng; Li, Guiying; Zhao, Huijun; Wong, Po Keung

doi:10.1016/j.apcatb.2017.05.035

Cited by 220 publications

(92 citation statements)

References 43 publications

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“…Based on the principle that the key to photoinactivationo f bacteria is the effective separation of photogenerated electron-hole pairs, as eries of materials, such as GO, [189] AgNPs, [190][191][192][193] AgBr NPs, [194] ZnO, [191] Bi 2 O 4 , [195] and TiO 2 , [196,197] have been combined with g-C 3 N 4 to form nanocomposites. Sun and co-workers introduced GO to g-C 3 N 4 ,w hich not only boosted light absorption but also benefitted the photogenerated electron-hole separation, and led to an increasei nv isible-light-induced bacterial eradication.…”

Section: Graphitic Carbon Nitride(g-c 3 N 4 )mentioning

confidence: 99%

Two‐Dimensional Materials for Antimicrobial Applications: Graphene Materials and Beyond

Sun

2018

Chemistry An Asian Journal

117

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Since the "birth" of graphene in 2004, two-dimensional (2D) materials have attracted unprecedented research interest from scientists and have stimulated numerous applications in various fields, such as electronic/optical devices, energy storage, catalysis, sensors, and biomedicine. In this review, we summarize recent advances in the antimicrobial applications of 2D materials, such as graphene materials (GMs), layered double hydroxides (LDHs), transition-metal dichalcogenides (TMDs), graphitic carbon nitride (g-C N ), MXenes, black phosphorus (BP), and their derivatives. This review also correlates the unique physicochemical properties of 2D materials with their antimicrobial activities. Finally, some current challenges and future perspectives in this field are also presented.

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Section: Graphitic Carbon Nitride(g-c 3 N 4 )mentioning

confidence: 99%

Two‐Dimensional Materials for Antimicrobial Applications: Graphene Materials and Beyond

Sun

2018

Chemistry An Asian Journal

117

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“…prepared a monoclinic‐Bi 2 O 4 (m‐Bi 2 O 4 )‐g‐C 3 N 4 heterostructure that followed the Z‐scheme photocatalytic mechanism to inactivate E. coli in visible light (Fig. (a) and (b)) . According to the scenario of the Z‐scheme transportation route: the electrons enriched in CB of g‐C 3 N 4 (−1.28 eV) retained reducibility that was strong enough to directly generate H 2 O 2 via O 2 reduction (E 0 O 2 /H 2 O 2 –1.18 eV vs NHE).…”

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

confidence: 82%

“…(a) TEM image of m‐Bi 2 O 4 ‐g‐C 3 N 4 ; (b) Z‐scheme electron transfer model for m‐Bi 2 O 4 ‐g‐C 3 N 4 ; (c) photocatalytic inactivation of E. coli by m‐Bi 2 O4, m‐Bi 2 O 4 ‐g‐C 3 N 4 and g‐C 3 N 4 ; copyright (2017) Elsevier.…”

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

confidence: 99%

“…Xia et al . reported a direct generation pathway of H 2 O 2 from O 2 in a Z‐scheme photocatalytic system, which was much faster than the stepwise generation route . In that case, the CB of photocatalysts should be no less negative than the standard potential of −1.18 eV.…”

Section: Generation and Roles Of Rssmentioning

confidence: 99%

“…Table summarizes the dominant species generated by typical 2D structure nanomaterials in photocatalytic sterilization. As mentioned, disinfection modes vary over different light sources, band structures and charge transfer routes . Thus, the irradiation conditions and charge transfer pathways are also presented in the table.…”

Section: Generation and Roles Of Rssmentioning

confidence: 99%

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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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Photocatalytic Valorization of Plastic Waste over Zinc Oxide Encapsulated in a Metal–Organic Framework

Qin

Dou

Zhou

et al. 2023

Adv Funct Materials

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The conversion of waste plastic into high‐value‐added chemicals is regarded as a promising approach for relieving global plastic pollution and contributing to the circular economy. Herein, a partial calcination strategy is developed to fabricate a zinc oxide/UiO66‐NH2 (ZnO/UiO66‐NH2) heterojunction, in which ZnO is encapsulated in porous UiO66‐NH2 for the photocatalytic valorization of plastic. This strategy preserves the framework structure of UiO66‐NH2, thus enabling the formation of ZnO with ultra‐small size distributed inside the skeleton. The synergistic effect of the obtained ZnO/UiO66‐NH2 heterojunction facilitates providing an efficient channel for carrier/mass transfer and guarantees structural stability. As a result, ZnO/UiO66‐NH2 exhibits high activity for converting polylactic acid (PLA) and polyvinyl chloride (PVC) into acetic acid, coupled with H2 production. This work provides a feasible strategy for rationally designing heterojunction photocatalysts, as well as an insight into understanding the process of photocatalytic valorization of plastic.

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Enhanced photocatalytic inactivation of Escherichia coli by a novel Z-scheme g-C 3 N 4 /m-Bi 2 O 4 hybrid photocatalyst under visible light: The role of reactive oxygen species

Cited by 220 publications

References 43 publications

Two‐Dimensional Materials for Antimicrobial Applications: Graphene Materials and Beyond

Two‐Dimensional Materials for Antimicrobial Applications: Graphene Materials and Beyond

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

Photocatalytic Valorization of Plastic Waste over Zinc Oxide Encapsulated in a Metal–Organic Framework

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