Visible-light-driven inactivation of Escherichia coli K-12 using an Ag/AgCl–activated carbon composite photocatalyst

McEvoy, Joanne Gamage; Bilodeau, Didier A.; Cui, Wenquan; Zhang, Zisheng

doi:10.1016/j.jphotochem.2013.04.026

Cited by 36 publications

(3 citation statements)

References 55 publications

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“…For the photocatalytic degradation of organics in water, the time course can be described as the decrease in the concentration of the organic with an increase in the irradiation time. For photocatalytic inactivation, the survival ratio as a function of irradiation time may be applied . Time is certainly important and it directly exhibits the reaction rate.…”

Section: Evaluation Of Photocatalytic Activitymentioning

confidence: 99%

Recent advances in computational photocatalysis: A review

Meng¹,

Yun²,

Zhang³

2019

Can J Chem Eng

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Photocatalysis has been extensively developed in recent years. Along with the development of computational software and hardware technology, the idea of designing a novel material (such as photocatalytic materials) starting from computation/modelling methods is growing increasingly popular. The combination of computational methods and material design is known as material simulation. The most difficult task in material simulation is to solve the Schr€ odinger equation. Aiming to overcome this problem, a large variety of approaches have been implemented and a fundamental package has been developed, namely DFT. Based on the simulated results, the most of typical parameters in photocatalysis such as band gap, optical property, recombination of photogenerated charge carriers, as well as adsorption and its mechanism can be investigated and estimated. Moreover, other computation methods relevant to photocatalysis were also herein introduced, primarily including irradiation modelling (using RTE) in a photoreactor, mass transfer, photocatalytic reaction kinetics, and the evaluation of photocatalytic activity. Computation methods applied to photocatalysis using various fundamental and equations are reviewed with an emphasis on materials simulation using DFT.

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Section: Evaluation Of Photocatalytic Activitymentioning

confidence: 99%

Recent advances in computational photocatalysis: A review

Meng¹,

Yun²,

Zhang³

2019

Can J Chem Eng

Self Cite

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“…Trinh et al [13] determined that nano-Ag had a favorable sterilization effect on the activities of E. coli and Staphylococcus aureus. McEvoy et al [14] observed that when using a Ag@/AgCl/activated carbon composite photocatalyst under visible light irradiation, the photocatalyst was found to inactivate 97% of bacteria under irradiation for 60 min in a 5 g/L slurry. The mechanism of photocatalysis-induced cell death was thought to be attributable to attack of radical species causing damage to the cell wall, and was probed by indirect observations of changes to cell membrane According to Rodríguez-Cabo et al [17], prepared nanocatalyst by a dissolution/reprecipitation method starting from the bulk powder and the ionic liquid trihexyl(tetradecyl)phosphonium chloride, [P6 6 6 14] Cl, without addition of other solvents.…”

Section: Introductionmentioning

confidence: 99%

In situ precipitation 3D printing of highly ordered silver cluster–silver chloride photocatalysts

Chen¹,

Huang²,

Lee³

et al. 2023

Int J Adv Manuf Technol

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In this study, a silver atomic cluster(Ag@)/silver chloride photocatalyst structure with high porosity and a highly ordered interconnected three-dimensional (3D) porous network was prepared through a novel insitu-precipitation 3D printing technique. Photocatalytic dye degradation and the sterilization of Escherichia coli under irradiation with visible light and ultraviolet light revealed that the photocatalyst structure had a strong degradation effect on the aqueous solutions of Orange II azo dye and methylene blue dye (both containing hydrogen peroxide) and that the kinetic properties were consistent with those of a pseudo-rst-order kinetics. E. coli was sterilized within a short period, and the kinetics followed those of pseudo-rst-order and hyperbolic kinetics. After ve repetitions of dye degradation, the degradation rates of the Orange II azo and methylene blue dyes were maintained at approximately 89.8% and 88.2%, respectively, which indicated that the prepared photocatalyst structure had high durability and reliability.

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“…Ag/AgX shows better activity and selectivity toward certain applications. Thus, Ag/AgX as a nanocomposite has been extensively researched in recent years [ 8 , 54 , 62 – 68 ].…”

Section: Introductionmentioning

confidence: 99%

Silver Halide-Based Nanomaterials in Biomedical Applications and Biosensing Diagnostics

Zhang

2022

Nanoscale Res Lett

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In recent years, silver halide (AgX, X = Cl, Br, I)-based photocatalytic materials have received increasing research attention owing to their excellent visible-light-driven photocatalytic performance for applications in organic pollutant degradation, HER, OER, and biomedical engineering. Ag as a noble metal has a surface plasma effect and can form Schottky junctions with AgX, which significantly promotes electron transport and increases photocatalytic efficiency. Therefore, Ag/AgX can reduce the recombination rate of electrons and holes more than pure AgX, leading to using AgX as a photocatalytic material in biomedical applications. The use of AgX-based materials in photocatalytic fields can be classified into three categories: AgX (Ag/AgX), AgX composites, and supported AgX materials. In this review, we introduce recent developments made in biomedical applications and biosensing diagnostics of AgX (Ag/AgX) photocatalytic materials. In addition, this review also discusses the photocatalytic mechanism and applications of AgX (Ag/AgX) and supported AgX materials.

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Visible-light-driven inactivation of Escherichia coli K-12 using an Ag/AgCl–activated carbon composite photocatalyst

Cited by 36 publications

References 55 publications

Recent advances in computational photocatalysis: A review

Recent advances in computational photocatalysis: A review

In situ precipitation 3D printing of highly ordered silver cluster–silver chloride photocatalysts

Silver Halide-Based Nanomaterials in Biomedical Applications and Biosensing Diagnostics

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