Visible-light-driven photocatalytic inactivation of bacteriophage f2 by Cu-TiO2 nanofibers in the presence of humic acid

Cheng, Rong; Kang, Myounggon; Shen, Zhi-peng; Shi, Lei; Zheng, Xiang

doi:10.1016/j.jes.2018.09.017

Cited by 21 publications

(10 citation statements)

References 40 publications

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“…However, there are main limitations suffered by TiO 2 photocatalyst, which are lower bandgap, poor capability for carrier charge separation that results in incompetent exploitation of visible light, and low photodegradation performances. Later, coupling TiO 2 photocatalyst with other metals such as manganese (Mn) [ 73 ], palladium [ 74 ], silver oxide (AgO), copper [ 75 , 76 ] and copper oxide [ 67 ] to form heterojunction photocatalyst could further enhance the photocatalytic activities on virus degradation through visible light irradiation.…”

Section: Virus Disinfection Via Photocatalysismentioning

confidence: 99%

“…Therefore, the disinfection of viruses must also consider the presence of NOMs. To further explore this situation, Cheng et al utilised humic acid as NOM representative and Cu–TiO 2 nanofibers as a photocatalyst [ 76 ]. They found that when the concentration of humic acid was increased from 0 to 15 mg/L, the removal efficiency of bacteriophage f2 declined from 5.00- to 1.89-log.…”

Section: Virus Disinfection Via Photocatalysismentioning

confidence: 99%

“…Besides that, the application of electrospun nanofibrous photocatalyst also attracted much attention in virus disinfection in water systems due to their super porosity and high surface area to volume ratio [ 74 , 76 , 99 ]. Nevertheless, electrospun nanofibrous photocatalysts are broadly acknowledged as brittle and fragile, and they can collapse easily due to their large pore size.…”

Section: Challenges and Future Perspectivesmentioning

confidence: 99%

See 2 more Smart Citations

A review on the potential of photocatalysis in combatting SARS-CoV-2 in wastewater

Nasir

Awang

Hubadillah

et al. 2021

Journal of Water Process Engineering

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Section: Virus Disinfection Via Photocatalysismentioning

confidence: 99%

Section: Virus Disinfection Via Photocatalysismentioning

confidence: 99%

Section: Challenges and Future Perspectivesmentioning

confidence: 99%

See 1 more Smart Citation

A review on the potential of photocatalysis in combatting SARS-CoV-2 in wastewater

Nasir

Awang

Hubadillah

et al. 2021

Journal of Water Process Engineering

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“…The enhanced degradation of 4-t-BP in the presence of HA was also observed for the degradation of Bisphenol A [62] and dimethoate [63] by TiO 2 photocatalytic degradation. The positive effect of HA at low concentrations might be ascribed to the photosensitization of HA, which would produce extra electrons, leading to an improvement in the photocatalytic degradation of organic pollutants [62,64,65]. On the other hand, at higher concentrations, HA adsorbed on the surface of the catalyst could compete with 4-t-BP for active sites, resulting in a reduction in degradation efficiency [66,67].…”

Section: Effect Of Ha and Coexisting Ions ( ) On The Degradation Of 4-t-bpmentioning

confidence: 99%

Ti2O3/TiO2-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water

2021

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Colored Ti2O3 and Ti2O3/TiO2 (mTiO) catalysts were prepared by the thermal treatment method. The effects of treatment temperature on the structure, surface area, morphology and optical properties of the as-prepared samples were investigated by XRD, BET, SEM, TEM, Raman and UV–VIS spectroscopies. Phase transformation from Ti2O3 to TiO2 rutile and TiO2 anatase to TiO2 rutile increased with increasing treatment temperatures. The photocatalytic activities of thermally treated Ti2O3 and mTiO were evaluated in the photodegradation of 4-tert-butylphenol (4-t-BP) under solar light irradiation. mTiO heated at 650 °C exhibited the highest photocatalytic activity for the degradation and mineralization of 4-t-BP, being approximately 89.8% and 52.4%, respectively, after 150 min of irradiation. The effects of various water constituents, including anions (CO32−, NO3, Cl and HCO3−) and humic acid (HA), on the photocatalytic activity of mTiO-650 were evaluated. The results showed that the presence of carbonate and nitrate ions inhibited 4-t-BP photodegradation, while chloride and bicarbonate ions enhanced the photodegradation of 4-t-BP. As for HA, its effect on the degradation of 4-t-BP was dependent on the concentration. A low concentration of HA (1 mg/L) promoted the degradation of 4-t-BP from 89.8% to 92.4% by mTiO-650, but higher concentrations of HA (5 mg/L and 10 mg/L) had a negative effect.

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“…The antimicrobial activity of nanoparticles is explained in part by the formation of reactive oxygen formation (ROS). Alternatively electrostatic attraction between metal nanoparticles and microbial cells which disrupt metabolic activities has been detected as well [22].…”

Section: Rapid Inactivation Of Human Coronavirus Occurs On Brassmentioning

confidence: 99%

Preventing the Spread of Coronavirus on Surfaces

Ellison¹

2021

BJSTR

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The evolution of new and reemerging virulent strains of respiratory viruses from animal reservoirs and among the population is a significant threat to human health. Respiratory viruses are responsible for more deaths globally than any other infectious agent. The recently discovered Coronavirus (COVID 19) is responsible for a devastating illness with a high death toll [1]. In the absence of proven therapeutics, most emphasis has to be put on prevention e.g., distancing, decreased public contacts, masks, handwashing with soap and hot water [2]. Immunisations if they reach herd immunity could contribute to contain the illness [3]. However, the major achievement of the immunisation is the prevention of a severe course of the disease and death as even immunised persons might still spread the virus [4].

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Visible-light-driven photocatalytic inactivation of bacteriophage f2 by Cu-TiO2 nanofibers in the presence of humic acid

Cited by 21 publications

References 40 publications

A review on the potential of photocatalysis in combatting SARS-CoV-2 in wastewater

A review on the potential of photocatalysis in combatting SARS-CoV-2 in wastewater

Ti2O3/TiO2-Assisted Solar Photocatalytic Degradation of 4-tert-Butylphenol in Water

Preventing the Spread of Coronavirus on Surfaces

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