Sonochemical Synthesis, Characterization and Sonocatalytic Performance of Terbium-Doped CdS Nanoparticles

Hanifehpour, Younes; Hamnabard, Nazanin; Mirtamizdoust, Babak; Joo, Sang Woo

doi:10.1007/s10904-016-0352-4

Cited by 29 publications

(4 citation statements)

References 38 publications

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“…As known to all, • OH radicals play significant role in Fenton systems, but • O 2 – radicals have been demonstrated to emerge in US system, which is ascribed to the sonoluminescence phenomenon caused by ultrasonic cavitation effect [17] , [45] , [46] . Sonoluminescence is light emission due to chemiluminescence from reactive species produced during the collapse of cavitation bubbles, it has a wide range of wavelengths including ultraviolet and visible light, which could stimulate either ultraviolet or visible light-induced semiconductors to behave as photocatalysts to produce electron-hole (e - -h + ) pairs [18] , [47] , [48] , [49] . According to the already reported literatures, MIL-88B is visible light responsive due to the existence of extensive oxo-iron (Fe–O) clusters [34] , [50] , [51] , [52] , which makes it reasonable to be stimulated by sonoluminescence.…”

Section: Resultsmentioning

confidence: 99%

Insights into the novel application of Fe-MOFs in ultrasound-assisted heterogeneous Fenton system: Efficiency, kinetics and mechanism

Geng

Chen

et al. 2021

Ultrasonics Sonochemistry

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Section: Resultsmentioning

confidence: 99%

Insights into the novel application of Fe-MOFs in ultrasound-assisted heterogeneous Fenton system: Efficiency, kinetics and mechanism

Geng

Chen

et al. 2021

Ultrasonics Sonochemistry

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“…Alternatively, the shorter chains in the NCP have better mobility; consequently allow molecules to be reoriented forming ordered segment. This is similar to the cage effect that includes the free radical re-combination prior to taking part in reactions that encourage crosslinking [32,33]. Through crosslinking, the chains can be joined end to end; the increase of the polymeric chain length add also to the shift of Tm toward higher temperatures [23].…”

Section: Differential Thermal Analysis (Dta)mentioning

confidence: 80%

Effect of gamma radiation on the structure and thermal properties of polyaniline-cobalt/polycarbonate nanocomposite

Samy

Hassan

El-Feky

et al. 2020

Al-Azhar Bulletin of Science

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The induced alterations in the structure and thermal properties of polyaniline-cobalt/polycarbonate, PANI-Co/PC, nanocomposite (NCP) owing to  irradiation have been investigated. The chemical composition and morphology of the prepared NCP samples were studied using scanning electron microscopy and energy dispersive spectrometry technique. Additionally, X-ray diffraction (XRD), FTIR spectroscopy, thermogravimetric analysis (TGA) and differential thermal analysis (DTA) were performed to investigate the resulted effect of  radiation. The  radiation with doses 50-350 kGy leads to the prevalence of intermolecular crosslinking which enhances the disordered phase and increases the bonds between the hydrogen of the PANI amine groups and carbonyl groups of PC. This is reflected in a rise in the degradation temperature values from 400 to 475 o C indicating an improvement in the thermostability of the NCP samples. Additionally, the melting temperature increased from 350 to 361 o C indicating a more compact structure of the NCP samples.

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“…cules and form ordered segments. This resembles the cage effect that contains the free radical recombination before sharing in interactions that motivate crosslinking [39,40]. Consequently, the observed difference between the variation of degradation temperatures and the melting temperature of the dose is due to the fact that Tm identifies the crystalline regions of the polymeric NC films.…”

Section: Absorption Coefficient Investigationmentioning

confidence: 97%

Structural, Thermal, and Optical Studies of Gamma Irradiated Polyvinyl Alcohol-, Lignosulfonate-, and Palladium Nanocomposite Film

et al. 2022

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Nanocomposite (NC) films of polyvinyl alcohol (PVA), lignosulfonate (Lg), and nanosized palladium (Pd) were synthesized by ex-situ casting method. Samples from the synthesized PVA-Lg/Pd NC films were irradiated with 5–100 kGy γ doses. The effect of γ doses on the structural, thermal, and optical characteristics of the NC films were studied using different characterization techniques. The results indicated that the γ irradiation improves the decomposition temperature from 227 to 239 °C, signifying an increase in the thermal stability of the NC films. This was accompanied by a reduction of the melting temperature due to the increase of the amorphous phase. This can be attributed to the dominance of crosslinking. On the other hand, the refractive index increased from 2.21 to 2.32 while increasing the γ dose up to 100 kGy. This was associated with a reduction of the optical bandgap from 3.49 to 3.30 eV, which could be attributed to the increase in the amorphous phase as a result of crosslinking. This indicates an enhancement of the spreading of the NPs inside the blend matrix due to γ irradiation. This results in a more compacted construction of the PVA-Lg/Pd NC films. Furthermore, we used the Commission Internationale de E’Claire (CIE) method to estimate the change in color among the irradiated NC films and the pristine film. The PVA-Lg/Pd NC attained a significant color difference value greater than five, meaning permanent color changes.

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Sonochemical Synthesis, Characterization and Sonocatalytic Performance of Terbium-Doped CdS Nanoparticles

Cited by 29 publications

References 38 publications

Insights into the novel application of Fe-MOFs in ultrasound-assisted heterogeneous Fenton system: Efficiency, kinetics and mechanism

Insights into the novel application of Fe-MOFs in ultrasound-assisted heterogeneous Fenton system: Efficiency, kinetics and mechanism

Effect of gamma radiation on the structure and thermal properties of polyaniline-cobalt/polycarbonate nanocomposite

Structural, Thermal, and Optical Studies of Gamma Irradiated Polyvinyl Alcohol-, Lignosulfonate-, and Palladium Nanocomposite Film

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