Photodegradation of nalidixic acid assisted by TiO2 nanorods/Ag nanoparticles based catalyst

Petronella, Francesca; Diomede, Sabrina; Fanizza, Elisabetta; Mascolo, G.; Sibillano, Teresa; Agostiano, Angela; Curri, M. Lucia; Comparelli, Roberto

doi:10.1016/j.chemosphere.2013.01.107

Cited by 42 publications

(28 citation statements)

References 34 publications

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“…The product is then exposed to light with appropriate intensity, resulting in the deposition of metal NPs on the semiconductor. The most important parameter in this method is the intensity of the light, since the average particle size decreases as the intensity of light increases [39,40,[74][75][76].…”

Section: Noble Metal Based Multifunctional Nanosized Heterostructuresmentioning

confidence: 99%

“…In addition, two crucial processes are known to define the overall catalytic efficiency, namely the competition between the recombination and the trapping of the charge carriers, followed by the one between the recombination of the trapped carriers and the interfacial charge transfer. Accordingly, improved charge separation and inhibition of charge carrier recombination are essential for enhancing the overall quantum efficiency of interfacial charge transfer [39][40][41][42][43].…”

Section: Synthesis Of Photoactive Nanocrystals and Nanoparticlesmentioning

confidence: 99%

“…Nanocomposite based on TiO 2 nanostructures modified with Au or Ag NPs have been found effective in removing dyes and organic pollutants (pharmaceuticals, endocrine disruptors, personal care products) [35,39].…”

Section: Water Treatmentmentioning

confidence: 99%

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Nanocomposite materials for photocatalytic degradation of pollutants

et al. 2017

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Section: Noble Metal Based Multifunctional Nanosized Heterostructuresmentioning

confidence: 99%

Section: Synthesis Of Photoactive Nanocrystals and Nanoparticlesmentioning

confidence: 99%

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Nanocomposite materials for photocatalytic degradation of pollutants

et al. 2017

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“…The change in temperature is dramatic all over the world, the disease-causing germs threat humankind seriously, and consequently, various antibacterial materials, such as zeolite-based [1,2] and phosphate-based [3,4] compositions, ZnO nanoparticles [5,6], TiO 2 nanoparticles [7-9], Ag nanoparticles [10-13], and core-shell silica-metal nanocompositions [14-16] are developed by researchers. Generally, the core-shell silica-silver nanocomposition is the most promising item among antibacterial materials due to its unique physical and chemical properties [17,18].…”

Section: Introductionmentioning

confidence: 99%

Studies on the annealing and antibacterial properties of the silver-embedded aluminum/silica nanospheres

Pan

Chien

et al. 2014

Nanoscale Res Lett

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Substantial silver-embedded aluminum/silica nanospheres with uniform diameter and morphology were successfully synthesized by sol-gel technique. After various annealing temperatures, the surface mechanisms of each sample were analyzed using scanning electron microscope, transmission electron microscope, and X-ray photoelectron spectroscopy. The chemical durability examinations and antibacterial tests of each sample were also carried out for the confirmation of its practical usage. Based on the result of the above analyses, the silver-embedded aluminum/silica nanospheres are eligible for fabricating antibacterial utensils.

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“…Yang et al [15] prepared hybrid Ag-TiO 2 core-shell nanoparticles by a chemical method which enhanced their photocatalytic activity in comparison with commercial TiO 2 and Ag-doped TiO 2 nanocomposite structures. Petronella et al [16] prepared a composite of TiO 2 nanorods and Ag nanoparticles and succeeded in achieving the degradation of antibiotic nalidixic acid and a recalcitrant pollutant. Su et al [17] combined the electrospinning technique with a solvo-thermal process to generate Ag/TiO 2 nanoheterostructures (Ag nanocrystals/ TiO 2 nanofibre mats based) and showed an improvement in the properties of the particle's nanostructure.…”

Section: Introductionmentioning

confidence: 99%

The characteristics of novel bimodal Ag–TiO2 nanoparticles generated by hybrid laser-ultrasonic technique

Hamad

Liu

et al. 2016

Appl. Phys. A

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Silver-titania (Ag-TiO 2 ) nanoparticles with smaller Ag nanoparticles attached to larger TiO 2 nanoparticles were generated by hybrid ultrasonic vibration and picosecond laser ablation of Ag and Ti bulk targets in deionised water, for the first time. The laser has a wavelength of 1064 nm and a pulse duration of 10 ps. It was observed that without the ultrasonic vibration, Ag and TiO 2 nanoparticles did not combine, thus the role of ultrasonic vibration is essential. In addition, colloidal TiO 2 and Ag nanoparticles were generated separately for comparison under the same laser beam characteristics and process conditions. The absorption spectra of colloidal Ag-TiO 2 cluster nanoparticles were examined by UV-Vis spectroscopy, and size distribution was characterised using transmission electron microscopy. The morphology and composition of Ag-TiO 2 nanoparticles were examined using scanning transmission electron microscopy in highangle annular dark field, and energy-dispersive X-ray spectroscopy. The crystalline structures were investigated by X-ray diffraction. The size of larger TiO 2 particles was in the range 30-150 nm, and the smaller-sized Ag nanoparticles attached to the TiO 2 was mainly in the range of 10-15 nm. The yield is more than 50 % with the remaining nanoparticles in the form of uncombined Ag and TiO 2 . The nanoparticles generated had strong antibacterial effects as tested against E. coli. A discussion is given on the role of ultrasonic vibration in the formation of Ag-TiO 2 hybrid nanoparticles by picosecond laser ablation.

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Photodegradation of nalidixic acid assisted by TiO2 nanorods/Ag nanoparticles based catalyst

Cited by 42 publications

References 34 publications

Nanocomposite materials for photocatalytic degradation of pollutants

Nanocomposite materials for photocatalytic degradation of pollutants

Studies on the annealing and antibacterial properties of the silver-embedded aluminum/silica nanospheres

The characteristics of novel bimodal Ag–TiO2 nanoparticles generated by hybrid laser-ultrasonic technique

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