Evaluating the X-ray-Shielding Performance of Graphene-Oxide-Coated Nanocomposite Fabric

Türkaslan, Süha; Uğur, Şule S.; Türkaslan, Banu Esencan; Fantuzzi, Nicholas

doi:10.3390/ma15041441

Cited by 22 publications

(10 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To make an aqueous dispersion, a ligand-free procedure was conducted . Although the ensuing aqueous dispersion appeared turbid, the colloid was substantially stable as evidenced by the zeta potential measurement (ζ ∼ 40 mV) . Further addition of PVA resulted in a more stable dispersion (ζ ∼ 50 mV) due to the chelating effect from hydroxyl groups on the polymer chains.…”

Section: Resultsmentioning

confidence: 99%

Flexible and Transparent Ceramic Nanocomposite for Laboratory X-ray Imaging of Micrometer Resolution

et al. 2022

View full text Add to dashboard Cite

Transparent nanocomposites have attracted considerable attention in many areas including X-ray imaging, wearable electronics, and volumetric display. However, both the transparency and the flexibility were largely jeopardized by the loading content of functional nanoparticles (NPs), posing a major challenge to material engineering. Herein, an ultra-highloading-ceramic nanocomposite film was fabricated by a bladecoating technique. The film exhibited a high transparency over ∼89% in the whole visible region even with a fluoride-ceramic content up to ∼83 wt %. Based on a real-time investigation on the formation process of the film, the refractive-index difference between the nanoparticles and matrix was identified as the dominating factor to transparency. The transmittance spectra based on Rayleigh scattering theory were simulated to screen both nanoparticle radius and loading content, leading to the discovery of a transparency zone for film making. As a proof-ofconcept experiment, the transparent film was used as an X-ray scintillation screen, which exhibited a comparable light yield to that of LYSO owing to the mitigated self-absorption effect. The homemade imager demonstrated a spatial resolution of 122 lp/mm, representing a record resolution of 4.1 μm for laboratory X-ray photography. Our work not only provided an experimental procedure to make high-loading functional films but also demonstrated a theoretical model to guide the search for gradients of transparent composites.

show abstract

Section: Resultsmentioning

confidence: 99%

Flexible and Transparent Ceramic Nanocomposite for Laboratory X-ray Imaging of Micrometer Resolution

et al. 2022

View full text Add to dashboard Cite

show abstract

“…GO was prepared by modifying the Hummers technique [18]. Graphite powder (1.0 g) and concentrated H2SO4 (24 ml) were poured into an ice bath and agitated at 200 rpm by using a Hotplate Magnetic Stirrer (Labtech LMS-1003/Korea), followed by the gradual addition of KMnO4 (3.0 g) to keep a temperature below 10°C.…”

Section: Synthesis Of Nano Graphene Oxid Gomentioning

confidence: 99%

“…The X-ray diffraction XRD analysis was the most important test which is performed to establish the existence of GO and to learn about its crystalline properties, where the effective production of the GO at the peak 2θ range of 10-12 degrees [18] The GO exhibited a very significant peak at 2θ = 10.92° as shown in Fig. 1 A.…”

Section: Characterizationmentioning

confidence: 99%

Mathematical Modeling and Kinetics of Removing Metal Ions from Industrial Wastewater

Jawad

Naife

2022

IJCPE

View full text Add to dashboard Cite

The study's objective is to produce Nano Graphene Oxide (GO) before using it for batch adsorption to remove heavy metals (Cadmium Cd+2, Nickel Ni+2, and Vanadium V+5) ions from industrial wastewater. The temperature effect (20-50) °C and initial concentration effect (100-800) mg L-1 on the adsorption process were studied. A simulation aqueous solution of the ions was used to identify the adsorption isotherms, and after the experimental data was collected, the sorption process was studied kinetically and thermodynamically. The Langmuir, Freundlich, and Temkin isotherm models were used to fit the data. The results showed that Cd, Ni, and V ions on the GO adsorbing surface matched the Langmuir model with correlation coefficients (R2) of 0.999. Kinetic models studied showed that a pseudo-second-order model was followed and thermodynamically, the process was exothermic due to ∆H negative, the reduction in randomness because of negative ∆S. additionally, spontaneous adsorption of metal ions was ∆G negative values influenced.

show abstract

“…It can be seen that non-planar textile fabrics are studied widely with the LbL technique because the surface, size and shape of the material to be coated are not limiting factors. In recent years, researchers have used the LbL method to impart many properties, such as dyeability [24], antifouling [25], X-ray shielding, electromagnetic shielding and electrical conductivity [26], antimicrobial [27], flame retardancy [28], UV protection [29], water and oil repellency and self-cleaning, strength [30], to fabrics containing natural and synthetic fibers. Regarding the dyeing processes of textiles with LbL, a few papers have been published.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Dyeing and Finishing of Cotton Fabrics with Layer-by-Layer Technique

Uğur

2023

Coatings

View full text Add to dashboard Cite

Large amounts of water, synthetic dyestuffs and chemicals are used in the wet processes of textile finishing, and at the end of these processes, liquors containing chemical substances create a waste load. For this reason, it is of great importance to develop new wet-finishing processes that use less water, dyestuffs and chemicals. For this purpose, the layer-by-layer deposition method (LbL) was used in this research as an environmentally friendly, sustainable method that can be used in wet-finishing processes to minimize chemical, water and energy consumption. The dyeing and functional finishing of cotton fabrics were carried out in one process by the LbL method. Cotton fabrics were pre-treated with a commercial cationic dye fixation agent and cationic charges were produced on the fabric surfaces. Reactive and direct dyestuff groups were used in the dyeing process of cotton fabrics and fluorocarbon was used in the functional finishing process. Eight and 12 dye/fluorocarbon layered structures were obtained by LbL deposition using a laboratory-type padder. Cotton fabrics were dyed and finished with the same dyes and fluorocarbon via the padding method and both samples were compared. The washing, rubbing and light color fastness properties, color strength and color difference of the dyed samples were tested. Tensile strength, air permeability, SEM graphs, contact angle, water and oil repellency analyses were performed for the treated fabrics.

show abstract

Evaluating the X-ray-Shielding Performance of Graphene-Oxide-Coated Nanocomposite Fabric

Cited by 22 publications

References 41 publications

Flexible and Transparent Ceramic Nanocomposite for Laboratory X-ray Imaging of Micrometer Resolution

Flexible and Transparent Ceramic Nanocomposite for Laboratory X-ray Imaging of Micrometer Resolution

Mathematical Modeling and Kinetics of Removing Metal Ions from Industrial Wastewater

Sustainable Dyeing and Finishing of Cotton Fabrics with Layer-by-Layer Technique

Contact Info

Product

Resources

About