Effective catalytic hydrodechlorination removal of chloroanisole odorants in water using palladium catalyst confined in zeolite Y

Zhang, Yufan; Ma, Ping; Fu, Heyun; Zheng, Shourong

doi:10.1016/j.chemosphere.2022.136551

Cited by 4 publications

(1 citation statement)

References 71 publications

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“…Considering that RWGS is a high-temperature reaction, effective inhibition of active species growth is also crucial to achieve high catalytic activity and maintain catalyst stability during the reaction process. The confinement effect with active species spatially confined in limited space is commonly applied to achieve enhanced catalytic activity and stability. – The two-solvent method is a simple and effective method to load active species inside limited space, and numerous metal- and metal oxide-based catalysts have been successfully prepared. , Yet, this method is barely adopted to prepare metal phosphides confined in porous supports.…”

Section: Introductionmentioning

confidence: 99%

Ni₁₂P₅ Confined in Mesoporous SiO₂ with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO₂ Hydrogenation

Bao,

Liu,

et al. 2023

ACS Appl. Mater. Interfaces

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CO2 hydrogenation via the reverse water gas shift (RWGS) reaction is a promising strategy for CO2 utilization while constructing Ni-based catalysts with high catalytic activity and perfect CO selectivity remains a great challenging. Here, we demonstrate that the product selectivity for CO2 hydrogenation can be significantly tuned from CH4 to CO by phosphating of SiO2-supported Ni catalysts due to the geometric effect. Interestingly, nickel phosphide catalysts with different crystalline phases (Ni12P5 and Ni2P) differ sharply in CO2 conversion, and Ni12P5 is remarkably more active. Furthermore, we developed a facile strategy to confine small Ni12P5 nanoparticles in mesoporous SiO2 channels (Ni12P5@SBA-15). Enhanced activity is exhibited on Ni12P5@SBA-15, ascribed to the highly effective confinement effect. The in situ diffuse reflectance infrared Fourier transform spectroscopy and density functional theory calculations unveil that catalytic CO2 hydrogenation follows a direct CO2 dissociation route with adsorbed CO as the key intermediate. Notably, strong multibonded CO (threefold and bridge-bonded CO) is feasibly formed on the Ni catalyst accounting for CH4 as the dominant product whereas only weak linearly bonded CO exists on nickel phosphide catalysts resulting in almost 100% CO selectivity. The present results indicate that Ni12P5@SBA-15 combining the geometric effect and the confinement effect can achieve near-unity CO selectivity and enhanced activity for CO2 hydrogenation.

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Section: Introductionmentioning

confidence: 99%

Ni₁₂P₅ Confined in Mesoporous SiO₂ with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO₂ Hydrogenation

Bao,

Liu,

et al. 2023

ACS Appl. Mater. Interfaces

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A review on pharmaceutical pollutants removal in water solution by catalytic ozonation using zeolite

Bavianne,

Jing,

Auriol

et al. 2024

Can J Chem Eng

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The presence of pharmaceutical pollutants in water sources constitute a serious risk to human health and the environment. Catalytic ozonation has emerged as a promising strategy for reducing these pollutants. This procedure uses ozone with the help of catalysts to improve the oxidation of organic molecules. Recently, there has been a lot of interest in using zeolite as an ozonation catalyst in the elimination of pharmaceutical contaminants from water solutions. Zeolites have unique properties such as their high surface area, porosity, and ion‐exchange capabilities, that make them effective catalysts for the decomposition of ozone and the oxidation of organic pollutants into harmless byproducts. This study aims to investigate the efficiency of zeolite catalytic ozonation in the elimination of pharmaceutical pollutants from aqueous solutions encompassing the working mechanisms, the determinants affecting the process's efficiency, potential obstacles, and perspective avenues for advancement within this field.

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Synergy of metal–support interaction and positive Pd species promoting efficient C–Cl bond activation on Pd-based Ce-MOF-derived catalysts

Hu,

Sun,

Liu

et al. 2024

Rare Met.

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Effective catalytic hydrodechlorination removal of chloroanisole odorants in water using palladium catalyst confined in zeolite Y

Cited by 4 publications

References 71 publications

Ni₁₂P₅ Confined in Mesoporous SiO₂ with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO₂ Hydrogenation

Ni₁₂P₅ Confined in Mesoporous SiO₂ with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO₂ Hydrogenation

A review on pharmaceutical pollutants removal in water solution by catalytic ozonation using zeolite

Synergy of metal–support interaction and positive Pd species promoting efficient C–Cl bond activation on Pd-based Ce-MOF-derived catalysts

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Effective catalytic hydrodechlorination removal of chloroanisole odorants in water using palladium catalyst confined in zeolite Y

Cited by 4 publications

References 71 publications

Ni12P5 Confined in Mesoporous SiO2 with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO2 Hydrogenation

Ni12P5 Confined in Mesoporous SiO2 with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO2 Hydrogenation

A review on pharmaceutical pollutants removal in water solution by catalytic ozonation using zeolite

Synergy of metal–support interaction and positive Pd species promoting efficient C–Cl bond activation on Pd-based Ce-MOF-derived catalysts

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Product

Resources

About

Ni₁₂P₅ Confined in Mesoporous SiO₂ with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO₂ Hydrogenation

Ni₁₂P₅ Confined in Mesoporous SiO₂ with Near-Unity CO Selectivity and Enhanced Catalytic Activity for CO₂ Hydrogenation