Fourier transform infrared (FTIR) spectroscopy approach combined with discriminant analysis and prediction model for crude palm oil authentication of different geographical and temporal origins

Rozali, Nurul Liyana; Azizan, Kamalrul Azlan; Singh, Rajinder; Jaafar, Sharifah Nabihah Syed; Othman, Abrizah; Weckwerth, Wolfram; Ramli, Umi Salamah

doi:10.1016/j.foodcont.2022.109509

Cited by 11 publications

(2 citation statements)

References 60 publications

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“…Silica gel and catalysts were characterized by FTIR spectroscopy. FTIR spectroscopy allows you to obtain information about the presence of certain bonds in the composition of the catalyst . In the literature data, there is information that the signals of transition metal oxides (Mo, W, and V) and the support are in the same regions and overlap each other.…”

Section: Resultsmentioning

confidence: 99%

“…FTIR spectroscopy allows you to obtain information about the presence of certain bonds in the composition of the catalyst. 30 In the literature data, there is information that the signals of transition metal oxides (Mo, W, and V) and the support are in the same regions and overlap each other. When comparing the spectra, it is noticeable that −OH groups do not appear in the catalysts (974 cm – ) due to the overlap of transition metal oxide signals, which confirms their adsorption on the support ( Figure 2 ).…”

Section: Resultsmentioning

confidence: 99%

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Room Temperature Ultrafast Oxidative Desulfurization with Sodium Hypochlorite in the Presence of Silica-Supported Catalysts

Gevorgyan,

Larionov,

Akopyan

et al. 2024

ACS Omega

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A series of silica-supported catalysts containing molybdenum, tungsten, and vanadium oxides as the active phase was investigated in the process of oxidative desulfurization with sodium hypochlorite. It was shown for the first time that catalysts containing vanadium oxide as the active phase are more stable under oxidation conditions with sodium hypochlorite and retain their effectiveness at increased dosages of the oxidant and at high initial sulfur contents. The catalysts were characterized in detail by a complex of methods: Fourier transform infrared, X-ray spectral fluorescence, transmission electron microscopy, scanning electron microscopy, and low-temperature nitrogen adsorption/desorption. Key factors affecting the oxidation of dibenzothiophene (DBT) were investigated: oxidant and catalyst amount, oxidation time, initial sulfur content, and acetonitrile amount. Under optimized conditions, the DBT conversion rate was 100% in 5 min at room temperature (25 °C), NaClO/S molar ratio 6:1, catalyst amount 2 wt %. In the real sample of the straight-run diesel fraction, the sulfur content was reduced from 10,100 to 3030 ppm. The V(10%)/ SiO 2 catalyst retains its activity for 5 oxidation−regeneration cycles.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Room Temperature Ultrafast Oxidative Desulfurization with Sodium Hypochlorite in the Presence of Silica-Supported Catalysts

Gevorgyan,

Larionov,

Akopyan

et al. 2024

ACS Omega

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Applications of Green Synthesized Metal Nanoparticles — a Review

Vijayaram

Razafindralambo

Sun

et al. 2023

Biol Trace Elem Res

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Green nanotechnology is an emerging field of science that focuses on the production of nanoparticles by living cells through biological pathways. This topic plays an extremely imperative responsibility in various fields, including pharmaceuticals, nuclear energy, fuel and energy, electronics, and bioengineering. Biological processes by green synthesis tools are more suitable to develop nanoparticles ranging from 1 to 100 nm compared to other related methods, owing to their safety, ecofriendliness, non-toxicity, and cost-effectiveness. In particular, the metal nanoparticles are synthesized by top-down and bottom-up approaches through various techniques like physical, chemical, and biological methods. Their characterization is very vital and the confirmation of nanoparticle traits is done by various instrumentation analyses such as UV-Vis spectrophotometry (UV-Vis), Fourier transform infrared spectroscopy (FT-IR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), atomic force microscopy (AFM), annular dark-field imaging (HAADF), and intracranial pressure (ICP). In this review, we provide especially information on green synthesized metal nanoparticles, which are helpful to improve biomedical and environmental applications. In particular, the methods and conditions of plant-based synthesis, characterization techniques, and applications of green silver, gold, iron, selenium, and copper nanoparticles are overviewed.

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Evaluation of waste toner asphalt containing crude palm oil from Congo: Rheological properties, compatibility, self-healing and aging characteristic

Itoua,

Sun

2024

Case Studies in Construction Materials

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Fourier transform infrared (FTIR) spectroscopy approach combined with discriminant analysis and prediction model for crude palm oil authentication of different geographical and temporal origins

Cited by 11 publications

References 60 publications

Room Temperature Ultrafast Oxidative Desulfurization with Sodium Hypochlorite in the Presence of Silica-Supported Catalysts

Room Temperature Ultrafast Oxidative Desulfurization with Sodium Hypochlorite in the Presence of Silica-Supported Catalysts

Applications of Green Synthesized Metal Nanoparticles — a Review

Evaluation of waste toner asphalt containing crude palm oil from Congo: Rheological properties, compatibility, self-healing and aging characteristic

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