What will happen when microorganisms “meet” photocatalysts and photocatalysis?

Li, Zaiyun; Tang, Rongdi; Ouyang, Kai; Liao, Chanjuan; Fang, Yi; Ding, Chunmei; Yang, Lihua; Su, Long; Gong, Daoxin

doi:10.1039/c9en01318k

Cited by 56 publications

(31 citation statements)

References 174 publications

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“…Almost any organic compounds can be photooxidized on TiO2 surface to CO2 and H2O [2,[5][6][7][8]. Viruses and bacteria can be destroyed over the photocatalytic surface as well [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Danyliuk

Mironyuk

Tatarchuk

et al. 2021

Phys. Chem. Solid St.

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The oxidative degradation of Rhodamine B dye under ultraviolet irradiation was studied. The degradation rate was measured with using of smartphone camera. Photocatalytic degradation of the Rhodamine B dye over the P25-TiO2 catalyst has been found to accelerate substantially in the presence of hydrogen peroxide. The relationship between the photocatalytic degradation rate and H2O2 concentration has been studied. The optimal concentration of H2O2 has been found to in the range of 10-25 mM. The proposed mixture of P25 photocatalyst and H2O2 oxidizer can be used to remove organic pollutions from industrial waste water.

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Section: Introductionmentioning

confidence: 99%

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Danyliuk

Mironyuk

Tatarchuk

et al. 2021

Phys. Chem. Solid St.

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“…2 ) that is harmful to bacteria. ROS attacks the cell membrane, and the coenzyme A on the cell membrane is hurt, resulting in inhibition of respiration dependent on the intact cell membrane, reduction or loss of cellular respiration activity, and eventually cause the control of the bacterial growth [65]. It was observed that the content of Zn in the ceramic coating increased by rising the concentration of ZnO nanoparticles within the electrolyte in Section 3.3.…”

Section: Antibacterial Performancementioning

confidence: 99%

Effect of ZnO nanoparticles addition to PEO coatings on AZ31B Mg alloy: antibacterial effect and corrosion behavior of coatings in Ringer’s physiological solution

Seyfi

Fattah‐alhosseini

Pajohi‐Alamoti

et al. 2021

Journal of Asian Ceramic Societies

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In this paper, the plasma electrolyte oxidation (PEO) technique was applied to modify the AZ31B Mg alloy surface. Effects of various concentrations of ZnO nanoparticles into an electrolyte with nanoparticles of hydroxyapatite (HAp) on the antibacterial and corrosion behavior of coatings were studied. Potentiodynamic polarization tests were done in Ringer's electrolyte to study the coatings corrosion behavior. Results of XRD indicated that the provided PEO films mostly have phases of HAp, MgO, and Mg 3 (PO 4 ) 2 and ZnO. The results indicated that increasing the concentration of ZnO nanoparticles raised the thickness, roughness, and wetting angle and also enhanced the coatings antibacterial activity. The inhibition percentage of bacterial growth for the specimen with the highest concentration of nanoparticles (4 g/L) after 6 h against E. coli and S. aureus was 23.5% and 45.5%, respectively. The concentration of nanoparticles had no major effect on the porosity size of the ceramic coating. Moreover, adding ZnO nanoparticles declined the corrosion current density and raised the corrosion potential with regard to the metal substrate. The formed coating in the solution containing 1 g/ L ZnO nanoparticles had the highest corrosion behavior among all of specimens that led to a 970 multiplication corrosion resistance of AZ31B Mg alloy.

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“…Several studies have been reported on the photocatalytic inactivation of microorganisms. These photocatalyst can be used as good disinfectant against pathogens, which not only destroy them but also can be used sterilization 83–86. Therefore, more work is needed to address these specific requirements concerning various exiting, and challenging applications in bio‐medical science.…”

Section: Challenges and Opportunitiesmentioning

confidence: 99%

Graphene‐based Materials for Fighting Coronavirus Disease 2019: Challenges and Opportunities

et al. 2021

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The coronavirus disease 2019 (COVID‐19) caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2) is considered as serious global threat of this time and greatest challenge for recent days. Several approaches have been carried out in this direction to fight against COVID‐19. Among these, nanotechnology is one of the promising approach to face these challenges in the current situation. Recently, graphene‐based nanomaterials have been explored for COVID‐19 due to its unique physicochemical properties. This mini review provides a recent progress in graphene‐based nanomaterials and its applications for diagnosis, detection, decontamination, and protection against COVID‐19. Further, main challenges and perspective for fundamental design and development of technologies based on graphene‐based materials are discussed and suitable directions to improve these technologies are suggested. This article will provide timely knowledge and future direction about this wonder materials in various biological applications.

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What will happen when microorganisms “meet” photocatalysts and photocatalysis?

Abstract: In recent years, photocatalytic technology has been widely studied as an environmental restoration technology and energy production technology to solve the two crises of energy shortage and environmental pollution.

Cited by 56 publications

References 174 publications

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Optimal H2O2 concentration in advanced oxidation over titanium dioxide photocatalyst

Effect of ZnO nanoparticles addition to PEO coatings on AZ31B Mg alloy: antibacterial effect and corrosion behavior of coatings in Ringer’s physiological solution

Graphene‐based Materials for Fighting Coronavirus Disease 2019: Challenges and Opportunities

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