In situ synthesis and modification of cotton fibers with bismuthoxychloride and titanium dioxide nanoparticles for photocatalytic applications

Ferreira, V.; Goddard, Alex; Monteiro, Olinda C.

doi:10.1016/j.jphotochem.2018.02.032

Cited by 18 publications

(8 citation statements)

References 76 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For interpretation of the results, the strains were classified as susceptible, intermediate, or resistant with respect to the evaluated nanoparticles, measuring the inhibition halo (CLSI, 2015). The results are displayed in Table 3 [44][45][46][47][48]. In this experiment, nanoparticles of TiFe 2 O 4 prepared at 532 nm showed better anti-bacterial results, exhibiting an inhibition ring 30 mm in diameter in samples deposited in polyethylene substrates when they was illuminated with UV light at 330 nm.…”

Section: Application As Antibacterial Surfacesmentioning

confidence: 97%

Colloidal Metal Oxide Nanoparticles Prepared by Laser Ablation Technique and Their Antibacterial Test

Duque

Madrigal

Riascos

et al. 2019

Colloids and Interfaces

View full text Add to dashboard Cite

In this article we report the production of metal oxide (TiFe2O4, ZnFe2O4) nanoparticles by pulsed laser ablation technique in a liquid environment. We used nanosecond Nd: YAG laser systems working at 532 nm and 1064 nm of wavelength and the energy of the laser beam was kept constant at 80 mJ. Absorbance spectra, surface plasmon resonance, optical band-gap, and nanoparticle morphology were investigated using ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Changing the wavelength of the laser for growth, nanoparticles showed shift between the absorbance and surface plasmon resonance peaks in their UV-Vis spectra, which implies that the optical properties of the colloid nanoparticles depend on laser parameters. This was confirmed with the variation of the band gap energy. Furthermore, redshift for the absorbance peak was observed for samples as-grown at 532 nm around 150 nm as a function of time preparation. Conversely, for the samples as-grown at 1064 nm there was no shift in the absorbance spectra, which could be due to agglomeration and formation of larger particles. The characterization results showed appropriate plasmonic photo-catalysts properties of the particles, hence the photoactivation of the nanoparticles was examined on antibacterial effect using colonies of Staphylococcus aureus and Escherichia coli.

show abstract

Section: Application As Antibacterial Surfacesmentioning

confidence: 97%

Colloidal Metal Oxide Nanoparticles Prepared by Laser Ablation Technique and Their Antibacterial Test

Duque

Madrigal

Riascos

et al. 2019

Colloids and Interfaces

View full text Add to dashboard Cite

show abstract

“…Subsequently, all samples were exposed to UV radiation at 330 nm, for a time of 2 hours; comparing the antibacterial activity in the absence of light the NPs show enhancement of antibacterial activity when them were illuminated with UV light, which indicated the photo activation of their plasma oscillation at surface of the NP such that it interacts strongly with the bacteria preventing its spread. For the interpretation of the results, the strains were classified as susceptible, intermediate or resistant with respect to the evaluated nanoparticles, measuring the inhibition halo (CLSI, 2015) this results are deposited in table 4 [44][45][46][47][48]. In this experiments nanoparticles of TiFe2O4 prepared at 532 nm shown the better anti-bacterial results exhibiting an inhibitions ring of the 30 mm of diameter in samples deposited in polyethylene substrates when this was illuminated with UV light at 330 nm.…”

Section: Application As Antibacterial Surfacesmentioning

confidence: 99%

Colloidal Metal Oxide<sub> </sub>Nanoparticles Prepared by Laser Ablation Technique and Their Antibacterial Test

Duque¹,

Moreno²,

Avila³

et al. 2019

Preprint

View full text Add to dashboard Cite

We report the production of metal oxide (TiFe2O4, ZnFe2O4) nanoparticles by pulsed laser ablation technique in liquid environment. We used nano second Nd: YAG   laser systems working at 532 nm and 1064 nm of wavelength, the energy of the laser beam was kept constant at 80 mJ. Absorbance spectra, surface plasmon resonance, optical band-gap and nanoparticle morphology were investigated using ultraviolet-visible (UV-Vis) spectroscopy, Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). Changing the wavelength of the laser for growth, nanoparticles shown shift between the absorbance and surface plasmon resonance peaks in their UV-Vis spectra, this implies that the optical properties of the colloid nanoparticles depends on laser parameters, this was confirmed with the variation of the band gap energy. Furthermore, red shift for the absorbance peak was observed for samples as-growth at 532 nm around the 150 nm as function of time preparation. Whereas, for the samples as-growth at 1064 nm there is no shift in the absorbance spectra, this can be due to agglomeration and formation of larger particles. The characterization results shown appropriate plasmonic photo-catalysts properties of the particles, hence the photo activation of the nanoparticles was examined on antibacterial effect using colonies of Staphylococcus Aureus and Escherichia coli.

show abstract

“…In coating technologies, various organic and inorganic compounds can be produced as particles in the nano-size range and can be directly utilised. Examples that have been used include polyacetylene, polypyrrole, polyaniline [5] , Au [6] , Ag [7] , Pd [8] , Cu [9] , Si [10] , CuO [11] , ZnO [12] , carbon nanotube (CNT) [13] , [14] , TiO 2 [15] , [16] , chitosan [17] , MXenes [18] and graphene oxide (GO) [19] nanoparticles. Textiles modified with these nanomaterials have potential applications in wound healing [23] , [24] , air purification [25] , drug delivery [24] , cosmetics, renewable energy generation and electronic applications such as fabrication of on-body diodes, transistors and circuitry [7] .…”

Section: Introductionmentioning

confidence: 99%

Applications of nanotechnology in smart textile industry: A critical review

Shah

Pirzada

Price

et al. 2022

Journal of Advanced Research

161

View full text Add to dashboard Cite

In situ synthesis and modification of cotton fibers with bismuthoxychloride and titanium dioxide nanoparticles for photocatalytic applications

Cited by 18 publications

References 76 publications

Colloidal Metal Oxide Nanoparticles Prepared by Laser Ablation Technique and Their Antibacterial Test

Colloidal Metal Oxide Nanoparticles Prepared by Laser Ablation Technique and Their Antibacterial Test

Colloidal Metal Oxide<sub> </sub>Nanoparticles Prepared by Laser Ablation Technique and Their Antibacterial Test

Applications of nanotechnology in smart textile industry: A critical review

Contact Info

Product

Resources

About