Computer-assisted optics experiments

Lazăr, Gabriel; Lazar, Iuliana; Stamate, Marius; Vascan, Ioan; Rusu, Ion

doi:10.1117/12.203498

Cited by 11 publications

(11 citation statements)

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“…Furthermore, the slope in Fig. 5, the estimated value of ratio of absorption coefficient (a clay /a bitu ) seems reasonable when considering absorption coefficient values reported from the literature [13]. They were experimentally measured and the value of a clay and that of a bitu were reported to have similar range of values (10 3 -10 4 cm À1 ) [14].…”

Section: Resultsmentioning

confidence: 92%

Prediction of bitumen content in oil sand based on FT-IR measurement

Yoon

Son

Lee³

et al. 2009

Journal of Industrial and Engineering Chemistry

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Section: Resultsmentioning

confidence: 92%

Prediction of bitumen content in oil sand based on FT-IR measurement

Yoon

Son

Lee³

et al. 2009

Journal of Industrial and Engineering Chemistry

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“…As expected, the intensity of this peak diminishes with increasing temperature in the spectra of Na-STx and ST-Al-FFC. The peaks centered around 1585 and 1660 cm À1 could be assigned to a C@N stretching vibration [35][36][37][38][39][40], providing evidence for an Al-O-N@C bridge in the Al-OH-FFC compound within ST-Al-FFC.…”

Section: Ftir Spectroscopymentioning

confidence: 95%

A two-dimensional magnetic hybrid material based on intercalation of a cationic Prussian blue analog in montmorillonite nanoclay

Gournis

Papachristodoulou

Maccallini

et al. 2010

Journal of Colloid and Interface Science

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A highly ordered two-dimensional hybrid magnetic nanocomposite has been prepared by synthesizing and intercalating a new cationic aluminum-hydroxy ferric ferrocyanide compound into a cation-adsorbing nanoclay (montmorillonite). Chemical and structural properties were investigated by X-ray diffraction, transmission electron microscopy, thermogravimetric and differential thermal analyses, Fourier transform infrared, X-ray photoemission, and Mössbauer spectroscopies. Elemental analysis was based on proton-induced gamma ray emission and X-ray fluorescence spectroscopy data, N/C elemental ratios, and cation-exchange capacity measurements. Magnetic properties were studied by SQUID magnetometry. The results suggest: (i) that the cationic Prussian blue analog comprises Al-hydroxy cations embedded into a monolayer thick two-dimensional ferric ferrocyanide array; and (ii) that the clay-Prussian blue nanohybrid consists of such arrays stacked between the clay layers. The latter material orders ferromagnetically at approximately 5K showing a hundred times higher remanence than that of the starting material, soluble Prussian blue (ammonium ferric ferrocyanide).

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“…Так, поглощение в диапазоне 2700−3500 см −1 обычно относят к связям O−H и N−H [13]. Также отметим, что пики из этого диапазона вблизи 2900 и 3100 см −1 соответствуют sp 3 -и sp 2 -гибридизации связей C−H [14]. За слабый пик при 2133 см −1 отвечают связи C−N или N=C=N [13,15], обусловленные либо частичным разложением g-C 3 N 4 [13], либо неполной полимеризацией прекурсора [15].…”

Section: результатыunclassified

Структурные И Фотолюминесцентные Свойства Графитоподобного Нитрида Углерода

Баглов¹,

Чубенко²,

Гнитько³

et al. 2020

Физика И Техника Полупроводников

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Установлена взаимосвязь между структурой и оптическими свойствами полупроводникового графитоподобного нитрида углерода, полученного термической обработкой тиокарбамида в диапазоне температур от 400 до 625oC в кислородсодержащей среде. Отмечено смещение максимума полосы фотолюминесценции от 417 к 494 нм при одновременном ее уширении с увеличением температуры синтеза вплоть до 625oC, что объяснено легированием кислородом, а также образованием дефектов вследствие разложения уже синтезированного материала при повышении температуры. Ключевые слова: графитоподобный нитрид углерода, g-C3N4, структура, фотолюминесценция.

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Computer-assisted optics experiments

Cited by 11 publications

References 0 publications

Prediction of bitumen content in oil sand based on FT-IR measurement

Prediction of bitumen content in oil sand based on FT-IR measurement

A two-dimensional magnetic hybrid material based on intercalation of a cationic Prussian blue analog in montmorillonite nanoclay

Структурные И Фотолюминесцентные Свойства Графитоподобного Нитрида Углерода

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