Doped ZnO nanoparticles impregnated on Kaolinite (Clay): A reusable nanocomposite for photocatalytic disinfection of multidrug resistant Enterobacter sp. under visible light

Misra, Ananyo Jyoti; Das, Swapan K; Rahman, A.P. Habeeb; Das, Bhaskar; Jayabalan, R.; Behera, Susanta Kumar; Suar, Mrutyunjay; Tamhankar, Ashok J.; Mishra, Amrita; Lundborg, Cecilia Stålsby; Tripathy, Suraj K.

doi:10.1016/j.jcis.2018.07.020

Cited by 57 publications

(22 citation statements)

References 56 publications

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“…Vibration at 826 and 876 cm −1 were attributed to the stretching vibrations of metal-oxygen chemical bands, ν(Al,Fe–OH), of iron bearing kaolinite (Frost and Mendelovici, 2006). The stretching and bending vibrations of the (-OH) groups were widely used to study catalytic and adsorption properties of the kaolinite clay minerals (Djomgoue and Njopwouo, 2013; Misra et al., 2018). Presence of organic matter was also observed in the clay material even after several washings with a 10% HCl solution.…”

Section: Resultsmentioning

confidence: 99%

Characterization of the firing behaviour of an illite-kaolinite clay mineral and its potential use as membrane support

Elgamouz

Tijani

Shehadi

et al. 2019

Heliyon

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The commercial value of any clay depends on its physical and chemical properties, these could help in tuning the characteristics of ceramic membrane supports required at extreme filtration conditions. The characteristics of two clay minerals named SA and CH were studied at various firing temperatures. The composition in oxides of both raw materials consisted of quartz (44.40 ± 0.60 to 46.98 ± 0.57 m%), alumina (13.16 ± 0.56 to 19.64 ± 0.48 m%), iron oxide (4.85 ± 0.46 to 6.37 ± 0.70 m %), and relatively smaller amounts of alkaline-earth oxides (3.34 ± 0.43 to 5.98 ± 0.33 m% calcium oxide and 1.98 ± 0.18 to 5.87 ± 0.34 m% for magnesium oxide). XRD of the investigated samples indicated the presence of kaolinite and illite as pure clay fractions in the clay mineral. SEM showed that the clay minerals were constituted from fine poorly crystalline particles with particles’ size more than 5 μm. The specific surface areas of the clay minerals were found to vary between 94.5 ± 6.3 to 138.6 ± 4.2 m 2 /g using methylene blue stain test, indicating that, the clay minerals fall within chlorite, illite, and kaolinite categories. The porosity of the clay supports made from both clays were found to be maximal with values of 23.45% ± 0.66 and 21.61% ± 0.60 for SA and CH clay materials respectively at 700°C. These values were a direct result of capillary movements of water in the specimen pores that were opened to the outside leading to the highest number macropores and mesopores in the specimen.

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Section: Resultsmentioning

confidence: 99%

Characterization of the firing behaviour of an illite-kaolinite clay mineral and its potential use as membrane support

Elgamouz

Tijani

Shehadi

et al. 2019

Heliyon

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“…The peak at 35.06° 2θ corresponds to anatase TiO 2 and the peak at 42.06° 2θ is due to the incorporation of nickel in the nickel doped nanocomposites [25]. Diffraction peak at 63.04° 2θ attributed to presence of zinc in the zinc modified clay nanocomposite [26]. The distortion in structural arrangement due to the acid activation leads to amorphous clay material in which small amount of crystallite structures are evident from the XRD pattern in both the synthesized nanocomposites [18].…”

Section: Xrd Analysismentioning

confidence: 98%

Ni and Zn modified acid activated montmorillonite clay for effective removal of carbol fuchsin dye from aqueous solution

Shinde

2020

SN Appl. Sci.

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The present work aims to investigate efficiency of zinc and nickel modified acid activated montmorillonite clay to remove carbol fuchsin dye from aqueous solution. The synthesized nanocomposites were characterized by TEM, SEM-EDAX, XRD, FT-IR and UV-Vis techniques. The adsorption of dye increased with increase in pH obeying pseudo-second-order rate kinetics and rapidly degraded (94%) alkaline dye solution in 90 min confirmed by LC-MS analysis. Zinc modified clay had slight edge due to high adsorption capacity and 3.24 eV band gap energy. Scavenger study confirmed participation of O 2 −• in degradation mechanism and reusability experiments confirmed stability of nanocomposites for multiple cycle.

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“…Ananyo et al prepared immobilized ZnO nanoparticle photocatalyst on kaolinite substrate, which realized complete disinfection of multidrug resistant Enterobacter sp. within 120 min by visible-light-aided photocatalytic disinfection process, exhibiting bactericidal efficiency superior to conventional catalysts such as TiO 2 and ZnO (Ref 45 ).…”

Section: Typical Photocatalytic Disinfection Materialsmentioning

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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Doped ZnO nanoparticles impregnated on Kaolinite (Clay): A reusable nanocomposite for photocatalytic disinfection of multidrug resistant Enterobacter sp. under visible light

Cited by 57 publications

References 56 publications

Characterization of the firing behaviour of an illite-kaolinite clay mineral and its potential use as membrane support

Characterization of the firing behaviour of an illite-kaolinite clay mineral and its potential use as membrane support

Ni and Zn modified acid activated montmorillonite clay for effective removal of carbol fuchsin dye from aqueous solution

Thermal-Sprayed Photocatalytic Coatings for Biocidal Applications: A Review

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