Py-GC/MS analyses of poly(ethylene terephthalate) film without and with the presence of tetramethylammonium acetate reagent. Comparative study

Dziwiński, E.; Iłowska, Jolanta; Gniady, J.

doi:10.1016/j.polymertesting.2017.11.009

Cited by 29 publications

(7 citation statements)

References 17 publications

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“…In addition, we collected the headspace gas in the vial after the reaction and analyzed it using gas chromatography‐mass spectrometry (GC‐MS), and we observed the presence of ethylene, water, and acetaldehyde (Figure S33). Previous studies [25b, 26] have shown that similar side products can be generated through PET thermolysis when PET is heated at a high temperature (>300 °C). The small improvement in TA yield under H 2 compared to Ar shows the limited effectiveness of UiO‐66 in hydrogen activation.…”

Section: Resultsmentioning

confidence: 90%

Catalytic Degradation of Polyethylene Terephthalate Using a Phase‐Transitional Zirconium‐Based Metal–Organic Framework

Wang

Kirlikovali

et al. 2022

Angewandte Chemie

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Polyethylene terephthalate (PET) is utilized as one of the most popular consumer plastics worldwide, but difficulties associated with recycling PET have generated a severe environmental crisis with most PET ending its lifecycle in landfills. We report that zirconium-based metal-organic framework (Zr-MOF) UiO-66 deconstructs waste PET into the building blocks terephthalic acid (TA) and mono-methyl terephthalate (MMT) within 24 hours at 260 °C (total yield of 98 % under 1 atm H 2 and 81 % under 1 atm Ar). Extensive structural characterization studies reveal that during the degradation process, UiO-66 undergoes an intriguing transformation into MIL-140A, which is another Zr-MOF that shows good catalytic activity toward PET degradation under similar reaction conditions. These results illustrate the diversity of applications for Zr-MOFs and establish MOFs as a new class of polymer degradation catalysts with the potential to address long-standing challenges associated with plastic waste.

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Section: Resultsmentioning

confidence: 90%

Catalytic Degradation of Polyethylene Terephthalate Using a Phase‐Transitional Zirconium‐Based Metal–Organic Framework

Wang

Kirlikovali

et al. 2022

Angewandte Chemie

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“…The total ion flow maps of the samples from Py-GC/MS were shown in Figure 6 , Figure 7 , Figure 8 and Figure 9 . The utilization of high-grade plant resources was reported, and the relative content of each component was determined using the peak normalization method [ 37 ].…”

Section: Resultsmentioning

confidence: 99%

Nano Catalysis of Biofuels and Biochemicals from Cotinus coggygria Scop. Wood for Bio-Oil Raw Material

Yue

Chen

et al. 2022

Polymers

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Cotinus coggygria Scop. as a precious landscape shrub and a good afforestation species that is used in the pharmaceutical industry. In this paper, TG-FTIR, TG-DTG, and Py-GC/MS were used to study the biomaterials of Cotinus coggygria used as biofuels and biochemicals under the catalysis of nano-Mo/Fe2O3. The wood powder was extracted using a methanol/benzene solution, and the extract was analyzed by FTIR and GC-MS. The results showed that the pyrolysis products of Cotinus coggygria wood were rich in phenols, alcohols, and biofuels. The metal nano-Mo powder played a catalytic role in the interpretation of the gas in the species, where it accelerates gas products. Metal nano-Fe2O3 has a certain flame-retardant effect on the burning process of Cotinus coggygria wood, and the residual amount of pyrolysis is greater. The contents of the extract Formamide, 1-Hexanol, Levodopa, and 9,12-Octadecadienoic acid (Z,Z)- are not only widely used industrially but also play an important role in medicine. Cotinus coggygria is therefore an excellent biomaterial for biofuels and biochemicals.

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“…The retention times of 22%, 18%, 48%, and 12% for the sample component content were less than 10, 20, and 30 min and greater than 30 min, respectively. The molecular weight increases occurred in sample retention times greater than 30 min, 10-20 min, less than 10 min, and 20-30 min, with a higher molecular weight content than the other retention times in the 20-30 min retention period (Toraman et al 2017;Dziwiński et al 2018;Fang et al 2018;Yu et al 2018).…”

Section: Py-gc-ms Analysismentioning

confidence: 89%

Reuse of Cornus officinalis nutlet for bioenergy

Yue

Lam

et al. 2022

BioRes

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As a traditional nourishing Chinese herbal medicine, Cornus officinalis Sieb. et Zucc. has a long history of application. At present, only the flesh of the fruit of Cornus officinalis is used as a medicine, which wastes a large quantity of ingredients in the nutlet. To improve the comprehensive utilization efficiency of the fruit’s nutlet, which could be used when there is a shortage of the plant’s fruit in the market, this study used Fourier transform-infrared spectroscopy (FT-IR), gas chromatography-mass spectrometry (GC-MS), thermogravimetric (TG) analysis, pyrolysis-gas chromatography-mass spectrometry (PY-GC-MS), and nuclear magnetic resonance (NMR) techniques to analyze the Cornus officinalis nutlet. The results showed that the active ingredients of Cornus officinalis nutlet have great medicinal value and could become a substitute for the fruit. After extracting the active ingredients, the residue can be used as a good biomass liquid fuel, providing reference for the future to replace fossil fuels. This study provides the scientific basis for the comprehensive utilization of high-quality resources for Cornus officinalis.

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Py-GC/MS analyses of poly(ethylene terephthalate) film without and with the presence of tetramethylammonium acetate reagent. Comparative study

Cited by 29 publications

References 17 publications

Catalytic Degradation of Polyethylene Terephthalate Using a Phase‐Transitional Zirconium‐Based Metal–Organic Framework

Catalytic Degradation of Polyethylene Terephthalate Using a Phase‐Transitional Zirconium‐Based Metal–Organic Framework

Nano Catalysis of Biofuels and Biochemicals from Cotinus coggygria Scop. Wood for Bio-Oil Raw Material

Reuse of Cornus officinalis nutlet for bioenergy

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