Vapor phase synthesis of 2,3,6-trimethylphenol from m-cresol and methanol with Fe2O3-SiO2-CuO catalyst

Deng, Xiaoling; Li, Sifang

doi:10.1016/j.catcom.2018.04.007

Cited by 8 publications

(4 citation statements)

References 23 publications

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“…A part of Fe2O3 in the catalyst, after being used in the degradation of DCF, was reduced to Fe3O4, which could be verified by the diffraction peaks at 30.035°, 35.442°, 43.065°, 53.373°, 56.873°, 62.552° in the XRD pattern (Fig. 8) [59], instead of 28.1, 38.7, 41.6, 47.83, 58.1, 63.7, 67.9, 74 and 75.9 o of the pristine HRS catalyst. Furthermore, the fresh HRS contained 42.3 wt.% O, 40.5 wt.% Fe, and 11.8 wt.% Si.…”

Section: Structural Chemical and Morphological Changes Of The Hrs Cat...mentioning

confidence: 66%

A continuous-flow catalytic process with natural hematite-alginate beads for effective water decontamination and disinfection: Peroxymonosulfate activation leading to dominant sulfate radical and minor non-radical pathways

Mohammadi

Moussavi

Shekoohiyan

et al. 2021

Chemical Engineering Journal

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Section: Structural Chemical and Morphological Changes Of The Hrs Cat...mentioning

confidence: 66%

A continuous-flow catalytic process with natural hematite-alginate beads for effective water decontamination and disinfection: Peroxymonosulfate activation leading to dominant sulfate radical and minor non-radical pathways

Mohammadi

Moussavi

Shekoohiyan

et al. 2021

Chemical Engineering Journal

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“…Methyl carnosic acid and αlinolenic acid, in particular, have been reported to play an important role. [34] One of the major volatile compounds from the S. officinalis L. methanolic extract is 2,3,5-trimethylphenol which is commonly used to synthesize 2,3,5-trimethylhydroquinone, an intermediate of vitamin E. [49,50] Furthermore, megastigmatrienone is a known key aroma compound with a sweet tobacco aroma as well as peppery and spicy notes. [51]…”

Section: Discussionmentioning

confidence: 99%

Salvia officinalis L. Methanolic Extract Reduces Lead and Nicotine‐Induced Sperm Quality Degeneration in Male Rats

Al-Daddou

Aljohani

Ahmed

et al. 2023

Chemistry & Biodiversity

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Most heavy metals and industrial chemicals such as nicotine and lead cause harm to the reproduction process through a decrease in sperm motility, fertilization process, and sperm binding to the oocyte. Salvia officinalis L. (sage) has been reported to enhance serum testosterone levels and other certain biochemical enzymes. Thus, the current study is aimed at evaluating the potential health benefits of S. officinalis L. methanol extract on lead and nicotine hydrogen tartrateinduced sperm quality degeneration in male rats and also identifying some of the non-polar volatile bioactive compounds that might be attributed to the bioactivity of S. officinalis extract using gas chromatography-mass spectrometry (GC/MS). In the study, fifty-four mature male albino rats of about 220-250 g [were divided randomly and equally into 9 groups (n = 6)]. Sperm quality degeneration was induced through the oral administration of 1.5 g/L of lead acetate in drinking water or peritoneal injection of 0.50 mg/kg (animal weight) nicotine hydrogen tartrate for sixty days. Two doses (200 & 400 mg/kg b.w.) of S. officinalis L. were used. The rats were anesthetized after the experimental period and then sacrificed. Blood samples were collected while the epididymis, testicle, and accessory sex organs (prostates and seminal vesical) were taken for histopathological studies. Twelve major compounds were identified through the GC/MS analysis of S. officinalis L. methanol extract. Lead and nicotine toxicity had a great effect on the rats' sperm quality causing a significant (p < 0.05) decrease in the quantity of sperm and sperm motility as well as an upsurge in the abnormalities of the sperm and a reduction in the length & diameter of seminiferous tubules and size & weight of sexual organs (accessory sex glands, epididymis, and testis). The administration of S. officinalis L. methanol extract, however, had a positive impact on the sexual organ weights, semen quality & quantity, and rats' fertility, thus, ameliorating the adversative effects of both lead and nicotine. Further evaluation and isolation of the bioactive components are recommended as potential drug leads.

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“…While earlier material development focused more on the enhancement using single modifications on active materials, recently, multicomponent systems have received more attention [ 20 , 21 , 22 , 23 , 24 , 25 ]. However, most works on multicomponent materials focus on combining materials where components improve the processability of the catalyst for their implementation in future reactors (i.e., dispersion, separation using magnets [ 21 , 26 ]).…”

Section: Introductionmentioning

confidence: 99%

“…However, most works on multicomponent materials focus on combining materials where components improve the processability of the catalyst for their implementation in future reactors (i.e., dispersion, separation using magnets [ 21 , 26 ]). Multicomponent materials containing iron oxide as a core material, due to its magnetic properties, are good examples of materials improving both the processability and activity of a catalyst to enhance separation from the liquid after the reaction [ 21 , 24 ]. Another approach is to modify the surface of an already photocatalytic material with a coating to change the deposition properties of the subsequently added co-catalyst i.e., increasing control of the particle size by modifying the surface or preventing the agglomeration of deposited nanoclusters of the surface by a cover layer [ 27 , 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis of a Rationally Designed Multi-Component Photocatalyst Pt:SiO2:TiO2(P25) with Improved Activity for Dye Degradation by Atomic Layer Deposition

et al. 2020

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Photocatalysts for water purification typically lack efficiency for practical applications. Here we present a multi-component (Pt:SiO2:TiO2(P25)) material that was designed using knowledge of reaction mechanisms of mono-modified catalysts (SiO2:TiO2, and Pt:TiO2) combined with the potential of atomic layer deposition (ALD). The deposition of ultrathin SiO2 layers on TiO2 nanoparticles, applying ALD in a fluidized bed reactor, demonstrated in earlier studies their beneficial effects for the photocatalytic degradation of organic pollutants due to more acidic surface Si–OH groups which benefit the generation of hydroxyl radicals. Furthermore, our investigation on the role of Pt on TiO2(P25), as an improved photocatalyst, demonstrated that suppression of charge recombination by oxygen adsorbed on the Pt particles, reacting with the separated electrons to superoxide radicals, acts as an important factor for the catalytic improvement. Combining both materials into the resulting Pt:SiO2:TiO2(P25) nanopowder exceeded the dye degradation performance of both the individual SiO2:TiO2(P25) (1.5 fold) and Pt:TiO2(P25) (4-fold) catalysts by 6-fold as compared to TiO2(P25). This approach thus shows that by understanding the individual materials’ behavior and using ALD as an appropriate deposition technique enabling control on the nano-scale, new materials can be designed and developed, further improving the photocatalytic activity. Our research demonstrates that ALD is an attractive technology to synthesize multicomponent catalysts in a precise and scalable way.

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Vapor phase synthesis of 2,3,6-trimethylphenol from m-cresol and methanol with Fe2O3-SiO2-CuO catalyst

Cited by 8 publications

References 23 publications

A continuous-flow catalytic process with natural hematite-alginate beads for effective water decontamination and disinfection: Peroxymonosulfate activation leading to dominant sulfate radical and minor non-radical pathways

A continuous-flow catalytic process with natural hematite-alginate beads for effective water decontamination and disinfection: Peroxymonosulfate activation leading to dominant sulfate radical and minor non-radical pathways

Salvia officinalis L. Methanolic Extract Reduces Lead and Nicotine‐Induced Sperm Quality Degeneration in Male Rats

Synthesis of a Rationally Designed Multi-Component Photocatalyst Pt:SiO2:TiO2(P25) with Improved Activity for Dye Degradation by Atomic Layer Deposition

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