Adsorption-enhanced photocatalytic waterborne virus inactivation by graphite carbon nitride conjugated with covalent organic frameworks

Zhang, Lu; Xi, Tianhao; Zhu, Dongyang; Shen, Hongchen; Su, Weiheng; Yu, Pingfeng; Lyu, Cong

doi:10.1016/j.cej.2023.144893

Cited by 5 publications

(1 citation statement)

References 58 publications

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“…When examining virus adsorption, the influence of inactivation is typically disregarded due to its occurrence within a relatively short time span of hours [23]. Conversely, when studying virus inactivation, adsorption phenomena are considered inconsequential as virus viability is monitored over the course of several days or months [24]. Hence, acquiring a thorough comprehension of the adsorption behavior exhibited by viruses in groundwater is essential to ensure the preservation of water quality and overall safety.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Li,

Zhang,

et al. 2024

Applied Sciences

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Drinking groundwater contamination by pathogenic viruses represents a serious risk to worldwide public health, particularly for enteric viruses, which exhibit high prevalence and occurrence during outbreaks. Understanding how enteric viruses adsorb in groundwater is essential to protecting human health and ensuring the sustainable use of water resources. The adsorption properties of Coxsackievirus A16 (CA16), a common gastrointestinal virus that spreads through groundwater, were investigated in this work. A typical batch equilibrium approach was used to investigate CA16 adsorption and factors that influence it. In a laboratory recognized nationally as a biosafety level 2 facility, stringent research protocols were followed to guarantee compliance with experimental standards. The variables that were investigated included the size of the sediment particles, the starting concentration of the virus, temperature, pH level, and humic acid content. The findings showed that the CA16 virus was more strongly attracted to finer sediment particles and that its adsorption increased as the size of the sediment particle decreased. Furthermore, it was discovered that higher temperatures improved the CA16 virus’s ability to bind to sediment particles. The pH of the aqueous environment has a significant effect on the effectiveness of virus adsorption; higher effectiveness was seen in acidic environments. Furthermore, it was found that the presence of humic acid decreased the ability of clay to adsorb CA16, suggesting that humic acid has a detrimental influence on clay’s ability to adsorb viruses. The examination of kinetic models demonstrated that, in every scenario examined, the adsorption process of CA16 adhered to the pseudo-second-order kinetics model. Additionally, the Langmuir and Freundlich isotherm models were used to assess the equilibrium data that were collected in this investigation. The outcomes amply proved that the most accurate representation of the adsorption equilibrium was given by the Langmuir isotherm model. The study offered a solid scientific foundation for treating groundwater and creating plans to stop the spread of viruses.

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Section: Introductionmentioning

confidence: 99%

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Li,

Zhang,

et al. 2024

Applied Sciences

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Boosting Efficient Alkaline Hydrogen Evolution Reaction of CoFe‐Layered Double Hydroxides Nanosheets via Co‐Coordination Mechanism of W‐Doping and Oxygen Defect Engineering

Wang,

Wu,

et al. 2024

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While surface defects and heteroatom doping exhibit promising potential in augmenting the electrocatalytic hydrogen evolution reaction (HER), their performance remains unable to rival that of the costly Pt‐based catalysts. Yet, the concurrent modification of catalysts by integrating both approaches stands as a promising strategy to effectively address the aforementioned limitation. In this work, tungsten dopants are introduced into self‐supported CoFe‐layered double hydroxides (LDH) on nickel foam using a hydrothermal method, and oxygen vacancies (Ov) are further introduced through calcination. The analysis results demonstrated that tungsten doping reduces the Ov formation energy of CoFeW‐LDH. The Ov acted as oxophilic sites, facilitating water adsorption and dissociation, and reducing the barrier for cleaving HO─H bonds from 0.64 to 0.14 eV. Additionally, Ov regulated the electronic structure of CoFeW‐LDH to endow optimized hydrogen binding ability on tungsten atoms, thereby accelerating alkaline Volmer and Heyrovsky reaction kinetics. Specifically, the abundance of Ov induced a transition of tungsten from a six‐coordinated to highly active four‐coordinated structure, which becomes the active site for HER. Consequently, an ultra‐low overpotential of 41 mV at 10 mA cm−2, and a low Tafel slope of 35 mV dec−1 are achieved. These findings offer crucial insights for the design of efficient HER electrocatalysts.

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Surface sensitization of graphitic carbon nitride with well-defined, organized Pd(II)-directed multiporphyrin array multilayers as ternary photocatalysts for Cr(VI) reduction in aqueous solution

Ye,

Wang,

Qian

2024

Diamond and Related Materials

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Adsorption-enhanced photocatalytic waterborne virus inactivation by graphite carbon nitride conjugated with covalent organic frameworks

Cited by 5 publications

References 58 publications

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Adsorption of Coxsackievirus in Sediments: Influencing Factors, Kinetics, and Isotherm Modeling

Boosting Efficient Alkaline Hydrogen Evolution Reaction of CoFe‐Layered Double Hydroxides Nanosheets via Co‐Coordination Mechanism of W‐Doping and Oxygen Defect Engineering

Surface sensitization of graphitic carbon nitride with well-defined, organized Pd(II)-directed multiporphyrin array multilayers as ternary photocatalysts for Cr(VI) reduction in aqueous solution

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