Study of Changes to the Organic Functional Groups of a High Volatile Bituminous Coal during Organic Acid Treatment Process by FTIR Spectroscopy

In this report, the functionalization of MWCNTs in sulfuric/nitric acid is studied, and the influences of acid concentration, temperature and time on functionalization are assessed. Fourier Transmission Infrared (FTIR) spectroscopy was employed to study the functional groups of different samples. The optimal results for complete functionalization were achieved by the addition of 5 mg/ml of MWCNTs to acid, at a temperature of 100°C with 3 h of soaking time. The correlation between the FTIR and Raman spectra of the optimized sample was determined, and the effect of functional groups on the G and D bands is discussed.

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Application of X-ray Photoelectron Spectroscopy to the Study of Fiberglass Surfaces

Applied Spectroscopy ◽

10.1366/000370274774332605 ◽

1974 ◽

Vol 28 (3) ◽

pp. 219-222 ◽

Cited By ~ 30

Author(s):

Gary D. Nichols ◽

David M. Hercules ◽

Roy C. Peek ◽

Dennis J. Vaughan

Keyword(s):

Functional Groups ◽

Photoelectron Spectroscopy ◽

Acid Treatment ◽

X Ray ◽

Organic Functional Groups ◽

Glass Surfaces

The application of x-ray photoelectron spectroscopy (ESCA) to the study of fiberglass surfaces is reported. Qualitatively, ESCA has been used to show the change in concentration of elements at the surface when fiberglass is subjected to heat and/or acid treatment. Diffusion of calcium to the surface as a function of temperature has been studied. Similarly, leaching of aluminum by acid as a function of pH is reported. The ability of ESCA to detect organic functional groups attached to fiberglass surfaces has been demonstrated for nitrogen and sulfur. Fiberglass coated with organic groups having chelating properties has been shown to extract metals from solution. It has also been demonstrated that ESCA can follow reactions of organic functional groups on glass surfaces, namely sulfonation of an amine.

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An investigation of changes in structural parameters and organic functional groups of inertinite rich lignite during acid treatment processes

Energy Sources Part A Recovery Utilization and Environmental Effects ◽

10.1080/15567036.2021.1923867 ◽

2021 ◽

pp. 1-18

Author(s):

Yash Jaiswal ◽

Sunder Lal Pal ◽

Harsh Jaiswal ◽

Anusha Jain ◽

Lav Kush ◽

...

Keyword(s):

Functional Groups ◽

Acid Treatment ◽

Structural Parameters ◽

Treatment Processes ◽

Organic Functional Groups

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Can a combination of vaccination, probiotic and organic acid treatment in layer hens protect against early life exposure to Salmonella Typhimurium and challenge at sexual maturity?

Vaccine ◽

10.1016/j.vaccine.2020.12.044 ◽

2020 ◽

Author(s):

Peter J. Groves ◽

Sarah L. Williamson ◽

Md. Ahaduzzaman ◽

Madeline Diamond ◽

Melanie Ngo ◽

...

Keyword(s):

Salmonella Typhimurium ◽

Organic Acid ◽

Early Life ◽

Acid Treatment ◽

Sexual Maturity ◽

Early Life Exposure ◽

Layer Hens

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ChemInform Abstract: SODIUM CYANOBOROHYDRIDE - A HIGHLY SELECTIVE REDUCING AGENT FOR ORGANIC FUNCTIONAL GROUPS

Chemischer Informationsdienst ◽

10.1002/chin.197524177 ◽

1975 ◽

Vol 6 (24) ◽

pp. no-no

Author(s):

C. F. LANE

Keyword(s):

Functional Groups ◽

Reducing Agent ◽

Sodium Cyanoborohydride ◽

Organic Functional Groups

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A Study of Surface Modification on Adsorption Behaviors of Nanoporous Carbon

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.119.211 ◽

2007 ◽

Vol 119 ◽

pp. 211-214 ◽

Cited By ~ 1

Author(s):

Byeoung Ku Kim ◽

Young Seak Lee ◽

Seung Kon Ryu ◽

Byung Joo Kim ◽

Soo Jin Park

Keyword(s):

Nitric Acid ◽

Functional Groups ◽

Carbon Fibers ◽

Acid Treatment ◽

Surface Acidity ◽

Activated Carbon Fibers ◽

Adsorption Behaviors ◽

Toxic Gases ◽

Adsorption Amount ◽

Polar Functional Groups

In this work, to introduce polar functional groups on carbon surfaces, activated carbon fibers (ACFs) were treated by nitric acid in order to enhance the adsorption capacity of propylamine which was one of toxic gases in cigarette smoke. It was found that the polar functional groups were predominantly increased up to 2.0 M of nitric acid, resulting in the increase of total surface acidity. It was found that the adsorption amount of propylamine of the modified ACFs was increased around 17% after a nitric acid treatment. From the XPS results, it was observed that propylamine was reacted with strong or weak polar (acidic) groups, such as COOH, -COO or OH existed on the ACF surfaces.

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