A mechanistic study of photo-oxidation of phenol and AB92 by AgBr/TiO2

Elahifard, Mohammad Reza; Behjatmanesh–Ardakani, Reza; Ahmadvand, Seyedsaeid; Abbasi, Behrooz

doi:10.1007/s11164-019-03867-4

Cited by 8 publications

(1 citation statement)

References 48 publications

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“…DFT methods, using projector-augmented waves (PAWs), have been successfully used in predicting the physical properties of solid materials [41][42][43][44][45]. Herein, a periodic slab model of 2 × 5 surface unit cells of Al (100) with five layers of 10 atoms, for a total of 50 atoms, was considered, and the vacuum was set to 30 Å.…”

Section: Computational Detailsmentioning

confidence: 99%

Predictive Modeling of Corrosion in Al/Mg Dissimilar Joint

et al. 2019

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In the absence of any abnormality (standard conditions), the gradient of any mechanical/thermodynamic stress would be intensified at the dissimilar joint due to an abrupt change in the chemical composition. This paper aims to investigate the effect of delocalizing this stress by imposing an optimum chemical gradient within the dissimilar joint. In this work, we computationally demonstrated that a homogenous distribution of magnesium atoms in the aluminum (100) structure with a specific chemical gradient could potentially reduce the susceptibility of the Mg/Al dissimilar joint towards micro-galvanic corrosion. This is achieved through the minimization of the work function gradient within the dissimilar joint.

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Section: Computational Detailsmentioning

confidence: 99%

Predictive Modeling of Corrosion in Al/Mg Dissimilar Joint

et al. 2019

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Functionalization of Filter Media for Improved Crystalline Silica Analysis Using Raman Spectroscopy

Elahifard,

Wang,

Chow

et al. 2024

J Raman Spectroscopy

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Respirable crystalline silica (RCS) poses significant health risks in workplaces, including underground coal mines, metal and nonmetal mining, construction sites, fire suppression, and oil and gas industries. Raman spectroscopy offers a promising avenue for direct analysis of RCS on sample filters with minimal pretreatment. However, the presence of organic compounds (OC) in the samples can generate fluorescence signals that interfere with RCS measurements, potentially saturating the detector even at short integration times, particularly when using portable Raman instruments. This study explores a novel approach to address these challenges by functionalizing filters with a hydroxyapatite/silver bromide/titanium dioxide (HAT) photocatalyst, facilitating the oxidation and removal of OC using the Raman excitation laser. Photocatalytic degradation experiments conducted on polyvinyl chloride (PVC) filters preloaded with HAT and anatase titanium dioxide (TiO2) particles demonstrated that HAT significantly enhances the degradation of OC, such as oxalic acid, under visible light irradiation compared to TiO2. Additionally, fluorescence interferences were reduced for coal dust samples analyzed on functionalized silver filters using a portable Raman instrument. The efficacy of HAT in OC photocatalytic degradation on silver filters was further confirmed using a benchtop micro‐Raman system. Filter functionalization had minimal impact on filtration efficiencies and pressure drops, indicating the feasibility of this approach for improving RCS analysis while maintaining filter performance.

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Theoretical Insights into Band Gap Tuning Through Cu Doping and Ga Vacancy in GaSe Monolayer: A First-Principles Perspective

Behjatmanesh-Ardakani

2024

J. Electron. Mater.

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A mechanistic study of photo-oxidation of phenol and AB92 by AgBr/TiO2

Cited by 8 publications

References 48 publications

Predictive Modeling of Corrosion in Al/Mg Dissimilar Joint

Predictive Modeling of Corrosion in Al/Mg Dissimilar Joint

Functionalization of Filter Media for Improved Crystalline Silica Analysis Using Raman Spectroscopy

Theoretical Insights into Band Gap Tuning Through Cu Doping and Ga Vacancy in GaSe Monolayer: A First-Principles Perspective

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