FTIR and Raman spectroscopy characterization of functional groups in various rank coals

Fuel ◽  
2017 ◽  
Vol 206 ◽  
pp. 555-563 ◽  
Author(s):  
Xueqiu He ◽  
Xianfeng Liu ◽  
Baisheng Nie ◽  
Dazhao Song
Keyword(s):  
Raman Spectroscopy ◽  
Functional Groups ◽  
Ftir And Raman Spectroscopy

scholarly journals FTIR and Raman spectroscopy characterization of fluorine-bearing titanian clinohumite in antigorite serpentinite and chlorite harzburgite

2014 ◽  
Vol 66 (1) ◽  
Author(s):  
Kenneth T Koga ◽  
Carlos J Garrido ◽  
José A Padrón-Navarta ◽  
Vicente López Sánchez-Vizcaíno ◽  
María T Gómez-Pugnaire
Keyword(s):  
Raman Spectroscopy ◽  
Ftir And Raman Spectroscopy

FTIR and Raman Spectroscopy Characterization of Coking Coals with Diverse Coalification

2019 ◽  
Vol 62 (6) ◽  
pp. 211-219
Author(s):  
Shao-Jing Yang ◽  
Qing Hai Pang ◽  
Tai-Xu Xu ◽  
Zhi-Jun He ◽  
Teng-Fei Song ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ftir And Raman Spectroscopy

scholarly journals Preparation and characterization of polycarbonate/multiwalled carbon nanotube nanocomposites

2017 ◽  
Vol 8 ◽  
pp. 2026-2031 ◽  
Author(s):  
Claudio Larosa ◽  
Niranjan Patra ◽  
Marco Salerno ◽  
Lara Mikac ◽  
Remo Merijs Meri ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Composite Films ◽  
Polymer Nanocomposite ◽  
Filler Loading ◽  
Multiwalled Carbon ◽  
Neat Polymer ◽  
Base Polymer ◽  
Ultrasonic Assisted ◽  
Ftir And Raman Spectroscopy

A polymer nanocomposite was produced by ultrasonic-assisted dispersion of multiwalled carbon nanotubes (MWCNTs) in a polycarbonate matrix using p-xylene and dichloromethane as the solvents. The filler loading was varied from 1 to 3 wt % in order to examine the effect of MWCNTs on the structure and properties of the composites. The nanocomposites were characterized by DSC, DTA, TGA, UV–vis, FTIR and Raman spectroscopy to evaluate the changes induced by the filler in the polymer matrix. UV–vis, FTIR and Raman spectroscopy measurements confirmed the presence of the dispersed phase in the composite films, while TGA and DSC analysis of the nanocomposites revealed enhanced thermal stability and decreased crystallinity, respectively, as compared to the neat polymer. The proposed composites can find application in a number of everyday products where polycarbonate is the base polymer.

Characterization of fine particulate matter in ambient air by combining TEM and multiple spectroscopic techniques – NMR, FTIR and Raman spectroscopy

2015 ◽  
Vol 17 (3) ◽  
pp. 552-560 ◽  
Author(s):  
Zhurun Ji ◽  
Rucheng Dai ◽  
Zengming Zhang
Keyword(s):  
Raman Spectroscopy ◽  
Fine Particulate Matter ◽  
Ambient Air ◽  
Spectroscopic Techniques ◽  
Fine Particulate ◽  
Transmission Electron ◽  
Spectroscopic Characteristics ◽  
Infrared And Raman Spectroscopy ◽  
Ftir And Raman Spectroscopy

We report a study of the microstructures and spectroscopic characteristics of PM2.5and its potential sources in Beijing by combining transmission electron microscopy and multiple spectroscopic techniques: nuclear magnetic resonance, Fourier transform infrared and Raman spectroscopy.

Mwcnts-PSOH Dispersion and Interaction Using Low Magnetic Fields

MRS Advances ◽  
2017 ◽  
Vol 2 (62) ◽  
pp. 3891-3897 ◽  
Author(s):  
Francisco G. Granados-Martínez ◽  
Diana L. García-Ruiz ◽  
José J. Contreras-Navarrete ◽  
Jael M. Ambriz-Torres ◽  
Carmen J. Gutiérrez-García ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Raman Spectroscopy ◽  
Magnetic Fields ◽  
Functional Groups ◽  
Room Temperature ◽  
Chemical Interaction ◽  
Chemical Vapor ◽  
Multi Walled Carbon Nanotubes ◽  
Walled Carbon Nanotubes ◽  
Ftir And Raman Spectroscopy

ABSTRACTThe aim of this research is to ameliorate the dispersion of pristine and functionalized Carbon Nanotubes (CNTs) into polystyrene with hydroxyl end groups (PSOH) matrices using low magnetic fields. The Multi-Walled Carbon Nanotubes (MWCNTs) were synthesized by chemical vapor deposition (CVD) using benzene as carbon source; to produce CNTs with and without functional groups two catalysts were used (stainless steel and ferrocene). The obtained nanotubes contained iron nanoparticles inside. PSOH were synthesized using styrene as monomer, azobisisobutyronitrile as initiator and 2-MeOH as chain transfer agent. The MWCNTs-PSOH matrices were formed using 1.6 wt % of carbon nanotubes into PSOH and ultrasonic mixing for 30 min. The mixing materials were poured into containers and dry at room temperature. While the material was drying, constant magnetic fields of 0.24 T were being applied for 50 min. The MWCNTs-PSOH composites were analysed by SEM, FTIR and Raman spectroscopy. SEM micrographs showed that MWCNTs without functional groups were incorporated in the middle of PSOH. The MWCNTs functionalized perform differently; a better dispersion through the entire polymer matrix was achieved, because the polymer embedded the CNTs. FTIR and Raman spectroscopy showed chemical interaction between PSOH and MWCNTs functionalized. The CNTs dispersion into PSOH was ameliorated through the use of low magnetic fields and functionalization.

scholarly journals Analysis of European Honeybee (Apis Mellifera) Wings Using ATR-FTIR and Raman Spectroscopy: A Pilot Study

2017 ◽  
Vol 48 (1) ◽  
pp. 22-29 ◽  
Author(s):  
V. Machovič ◽  
L. Lapčák ◽  
M. Havelcová ◽  
L. Borecká ◽  
Mi. Novotná ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Molecular Conformation ◽  
Protein Secondary Structure ◽  
Side Chain ◽  
Vibration Modes ◽  
Amino Acid Residues ◽  
Β Sheet ◽  
European Honeybee ◽  
Ftir And Raman Spectroscopy

Abstract The infrared (ATR-FTIR) and Raman spectroscopy was used for the structural characterization of honeybee wings. Protein, chitin, and lipid characteristic spectral features were detected using both methods. The protein secondary structure was predominantly composed of the β-sheet molecular conformation with β-turns or coil contributions. The vibration modes of the side-chain aromatic amino acid residues (tyrosine, phenylalanine, tryptophan) occurred in the wing spectra. The results of discriminant analysis showed that the infrared spectroscopy of the wing in combination with a multivariate analysis seemed promising for a resolution of the chemical structure of the wings based on lipid, proteins, and chitin content.

scholarly journals Erratum to: FTIR and Raman Spectroscopy Characterization of Coking Coals with Diverse Coalification

2020 ◽  
Vol 63 (3) ◽  
pp. 159-159
Author(s):  
Shao-Jing Yang ◽  
Qing Hai Pang ◽  
Tai-Xu Xu ◽  
Zhi-Jun He ◽  
Teng-Fei Song ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ftir And Raman Spectroscopy

Application of FT Spectroscopy in the Study of Fungi

2008 ◽  
Vol 59 (2) ◽  
pp. 212-215 ◽  
Author(s):  
Catalin Tanase ◽  
Aurel Pui
Keyword(s):  
Functional Groups ◽  
Toxic Substances ◽  
Ft Spectroscopy

The present study is devoted to the IR�FT characterization of some fungi species, to the identification of their main functional groups, as well as to emphasize the presence of some toxic substances in the structure of certain sporiferous plants.

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