Graphitic carbon nitride (g-C3N4)-based photocatalysts for water disinfection and microbial control: A review

Zhang, Chi; Li, Yang; Shuai, Danmeng; Shen, Yun; Xiong, Wei; Wang, Linqiong

doi:10.1016/j.chemosphere.2018.09.137

Cited by 347 publications

(123 citation statements)

References 97 publications

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“…In the last two decades, ever-growing efforts have been made for the development of photocatalytic disinfection applications. Two categories of photocatalysts have been developed for inactivation of microbial species: the metal oxides like photocatalysts, including TiO 2 (Ref 13 ), zinc oxide (ZnO) (Ref 14 ), tungsten oxide (WO 3 ) (Ref 15 ), and the nonmetal catalysts, such as graphitic carbon nitride (g-C 3 N 4 ) (Ref 16 ), C 60 (Ref 17 ), and so on. With the advance of analytical methods for pathogens detection and increasing public health concern, there is a pressing need to evaluate the performance of photocatalysis as an eco-friendly, cost-effective, and sustainable strategy for the disinfection of air, water, and solid surface and also the future opportunities for industrial use.…”

Section: Introductionmentioning

confidence: 99%

Thermal-Sprayed Photocatalytic Coatings for Biocidal Applications: A Review

et al. 2020

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There have been ever-growing demands for disinfection of water and air in recent years. Efficient, eco-friendly, and cost-effective methods of disinfection for pathogens are vital to the health of human beings. The photocatalysis route has attracted worldwide attention due to its highly efficient oxidative capabilities and sustainable recycling, which can be used to realize the disinfection purposes without secondary pollution. Though many studies have comprehensively reviewed the work about photocatalytic disinfection, including design and fabrication of photocatalytic coatings, inactivation mechanisms, or practical applications, systematic reviews about the disinfection photocatalysis coatings from fabrication to effort for practical use are still rare. Among different ways of fabricating photocatalytic materials, thermal spray is a versatile surface coating technique and competitive in constructing large-scale functional coatings, which is a most promising way for the future environmental purification, biomedical and life health applications. In this review, we briefly introduced various photocatalytic materials and corresponding inactivation mechanisms for virus, bacteria and fungus. We summarized the thermal-sprayed photocatalysts and their antimicrobial performances. Finally, we discussed the future perspectives of the photocatalytic disinfection coatings for potential applications. This review would shed light on the development and implementation of sustainable disinfection strategies that is applicable for extensive use for controlling pathogens in the near future.

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Section: Introductionmentioning

confidence: 99%

Thermal-Sprayed Photocatalytic Coatings for Biocidal Applications: A Review

et al. 2020

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“…Recently, graphitic carbon nitride (g‐C 3 N 4 ), an organic semiconductor has been reported as a potential photocatalyst in environmental and energy purposes . It has various interesting properties, including its easy and economical production from nitrogen rich compounds, excellent thermal and chemical stability, and visible‐light absorption (up to 460 nm) . On the other hand, there are still a number of shortcomings related with g‐C 3 N 4 that limited its efficient photocatalytic activities.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal Synthesis of g‐C₃N₄/NiFe₂O₄ Nanocomposite and Its Enhanced Photocatalytic Activity

Gebreslassie

Bharali

Chandra

et al. 2019

Applied Organom Chemis

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Herein, for the first time, a direct Z-scheme g-C 3 N 4 /NiFe 2 O 4 nanocomposite photocatalyst was prepared using facile one-pot hydrothermal method and characterized using XRD, FT-IR, DRS, PL, SEM, EDS, TEM, HRTEM, XPS, BET and VSM characterized techniques. The result reveals that the NiFe 2 O 4 nanoparticles are loaded on the g-C 3 N 4 sheets successfully. The photocatalytic activities of the as-prepared photocatalysts were evaluated for the degradation of methyl orange (MO) under visible light irradiation. It was shown that the photocatalytic activity of the g-C 3 N 4 /NiFe 2 O 4 nanocomposite is about 4.4 and 3 times higher than those of the pristine NiFe 2 O 4 and g-C 3 N 4 respectively. The enhanced photocatalytic activity could be ascribed to the formation of g-C 3 N 4 /NiFe 2 O 4 direct Z-scheme photocatalyst, which results in efficient space separation of photogenerated charge carriers. More importantly, the as-prepared Z-scheme photocatalyst can be recoverable easily from the solution by an external magnetic field and it shows almost the same activity for three consecutive cycles. Considering the simplicity of preparation method, this work will provide new insights into the design of high-performance magnetic Z-scheme photocatalysts for organic contaminate removal.

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“…Titanates (BaTiO3, SrTiO3 or La2Ti2O7) [42][43][44] Tungstates (Bi2WO6 or ZnWO4) [45,46] Metalates [AxByOz] (such as BiVO4) [47,48] Non-metal semiconductors g-C3N4, graphene [49][50][51] Multicomponent materials Bi2S3/Bi2O3/Bi2O2CO3 Bi2O2CO3/Bi2O4 [52][53][54] BiVO4/Bi2O2CO3 g-C3N4-heterojunctions [50] Graphene-heterojunctions [55] Simultaneously, during this last two decades, another type of materials has received special attention photocatalysis, regarding the broad range of possibilities that the interaction between metal clusters and organic linkers may present. This is the case of metal organic frameworks (MOFs), whose crystalline structure provides a robust and well-defined network and also a high development of the surface area [56].…”

Section: Metal Sulfidesmentioning

confidence: 99%

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

et al. 2019

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This review analyzes the preparation and characterization of metal organic frameworks (MOFs) and their application as photocatalysts for water purification. The study begins by highlighting the problem of water scarcity and the different solutions for purification, including photocatalysis with semiconductors, such as MOFs. It also describes the different methodologies that can be used for the synthesis of MOFs, paying attention to the purification and activation steps. The characterization of MOFs and the different approaches that can be followed to learn the photocatalytic processes are also detailed. Finally, the work reviews literature focused on the degradation of contaminants from water using MOF-based photocatalysts under light irradiation.

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Graphitic carbon nitride (g-C3N4)-based photocatalysts for water disinfection and microbial control: A review

Cited by 347 publications

References 97 publications

Thermal-Sprayed Photocatalytic Coatings for Biocidal Applications: A Review

Thermal-Sprayed Photocatalytic Coatings for Biocidal Applications: A Review

Hydrothermal Synthesis of g‐C₃N₄/NiFe₂O₄ Nanocomposite and Its Enhanced Photocatalytic Activity

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

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Graphitic carbon nitride (g-C3N4)-based photocatalysts for water disinfection and microbial control: A review

Cited by 347 publications

References 97 publications

Thermal-Sprayed Photocatalytic Coatings for Biocidal Applications: A Review

Thermal-Sprayed Photocatalytic Coatings for Biocidal Applications: A Review

Hydrothermal Synthesis of g‐C3N4/NiFe2O4 Nanocomposite and Its Enhanced Photocatalytic Activity

A Review on the Synthesis and Characterization of Metal Organic Frameworks for Photocatalytic Water Purification

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Hydrothermal Synthesis of g‐C₃N₄/NiFe₂O₄ Nanocomposite and Its Enhanced Photocatalytic Activity