Thermo-FTIR spectroscopy analysis as a method of characterizing ancient ceramic technology

2005 ◽  
Vol 82 (3) ◽  
pp. 609-616 ◽  
Author(s):  
S. Shoval ◽  
P. Beck
Keyword(s):  
Ftir Spectroscopy ◽  
Ceramic Technology ◽  
Spectroscopy Analysis ◽  
Ancient Ceramic

Cellulose-g-PAM Derived from Kenaf for Ethyl Orange Removal

2016 ◽  
Vol 818 ◽  
pp. 246-249 ◽  
Author(s):  
Siti Fatimah Mohamed Razak ◽  
Norzita Ngadi ◽  
Nurul Jannah Arsad
Keyword(s):  
Waste Water ◽  
Microwave Irradiation ◽  
Ftir Spectroscopy ◽  
Microwave Irradiation Method ◽  
Spectroscopy Analysis

A novel hybrid flocculant of acrylamide and cellulose was synthesized by using microwave irradiation method. Cellulose was extracted from kenaf by using TAPPI method. 57.4% of percentage grafting and efficiency has been obtained from the grafting process. There are additional peaks that appeared in FTIR spectroscopy analysis that show PAM was grafted into cellulose backbone. The flocculation behavior was studied by using ethyl orange wastewater. The result shows that hybrid flocculant (cellulose-g-PAM) has potential to be used as flocculant in treating dyes waste water.

scholarly journals Chemical study of asphaltene inhibitors effects on asphaltene precipitation of an Iranian oil field

2020 ◽  
Vol 75 ◽  
pp. 6 ◽  
Author(s):  
Afshar Ahmadbaygi ◽  
Behrouz Bayati ◽  
Mohsen Mansouri ◽  
Hossein Rezaei ◽  
Masoud Riazi
Keyword(s):  
Fourier Transform ◽  
Crude Oil ◽  
Ftir Spectroscopy ◽  
Chemical Structure ◽  
Chemical Study ◽  
Oil Field ◽  
Asphaltene Precipitation ◽  
Spectroscopy Analysis ◽  
Synthetic Oil ◽  
Onset Point

The amount of precipitated asphaltene can be considerably reduced with pretreatment of asphaltene inhibitor, in the crude oil. Efficiency of asphaltene inhibitors mainly depends on some parameters such as pH of the oil and the chemical structure of asphaltene inhibitors. In this paper, the amounts of asphaltene precipitation have been experimentally measured using two n-paraffin precipitants; n-heptane and n-hexane. The performance of the studies on the asphaltene accumulation was studied using Fourier-Transform Infrared (FTIR) Spectroscopy analysis. The onset point has been determined by three different commercial asphaltene inhibitors. The results show that when an asphaltene inhibitor is not injected into the mixture of synthetic oil/n-heptane, AOP (Asphaltene Onset Point) occurs at 35 vol.% of n-heptane, while with addition of 3000 ppm of asphaltene B inhibitor, AOP occurs at 60 vol.% of n-heptane.

A Conversion and Tribology Investigation on Used Ayurvedic Oil

2015 ◽  
Vol 813-814 ◽  
pp. 885-889 ◽  
Author(s):  
Ranganathan Balakumar ◽  
G. Sriram ◽  
S. Arumugam ◽  
V. Abhijith Koushal ◽  
Villa Sai Surya Venkatesh
Keyword(s):  
Fourier Transform ◽  
Methyl Ester ◽  
Ftir Spectroscopy ◽  
Diesel Fuel ◽  
Alternative Fuels ◽  
Fourier Transform Infrared ◽  
Wear Scar ◽  
Spectroscopy Analysis ◽  
Ic Engine ◽  
The Fourier Transform

Biofuel plays a major role in IC engine nowadays. Used Ayurvedic Oil (UAO) is one among the alternative fuels utilized. The preliminary property studies were carried out and the UAO had undergone simple Transesterification process to be converted to Used Ayurvedic Oil Methyl Ester (UAOME). The Fourier Transform Infrared (FTIR) spectroscopy analysis confirmed the UAO to UAOME conversion. The Trobological investigation on UAOME is also conducted using Four Ball Wear Tester. The results showed that lower wear scar was observed in UAOME comparatively with diesel. From the results it is clear that the UAO can be a novel partial substitute for diesel fuel.

Infra-Red Spectroscopy Analysis of Malva Fibers

2014 ◽  
Vol 775-776 ◽  
pp. 255-260 ◽  
Author(s):  
Sergio Neves Monteiro ◽  
Frederico Muylaert Margem ◽  
Jean Igor Margem ◽  
Lucas Barbosa de Souza Martins ◽  
Caroline Gonçalves Oliveira ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Ftir Spectroscopy ◽  
Polymer Composites ◽  
Environmentally Friendly ◽  
Spectroscopy Analysis ◽  
Absorption Bands ◽  
Lignocellulosic Fibers ◽  
Lignocellulosic Fiber ◽  
Synthetic Materials ◽  
Infra Red

The growing interest for natural materials as an environmentally friendly alternative for the substitution of energy intensive and non-sustainable synthetic materials, has motivated the use of lignocellulosic fibers as reinforcement of polymer composites. The malva fiber, a relatively unknown lignocellulosic fiber with potential for composite reinforcement, still needs to be characterized for possible engineer applications. Therefore, the present work analyzed the malva fiber by means of Fourier Transform Infra-red (FTIR) spectroscopy. The malva fiber FTIR spectrum revealed main absorption bands typical of any lignocellulosic fiber. However, some specific bands as well as bands broadening and intensity suggested particular activities for functional molecular groups in the malva fiber.

The Reconstructiton of Ancient Ceramic Technology Through the Comparative Analysis of Ancient and Contemporary Potters′ Materials: A Case Study from the Central Tiber Valley of Italy

1990 ◽  
Vol 185 ◽  
Author(s):  
J. Theodore Peña
Keyword(s):  
Ceramic Technology ◽  
Raw Material ◽  
Ceramic Production ◽  
X Ray Diffraction ◽  
Mineralogical Analysis ◽  
X Ray ◽  
Ancient Ceramic ◽  
Tiber Valley ◽  
Selection Of

AbstractThis paper presents the results of a program of mineralogical analysis aimed at the elucidation of raw material acquisition and paste preparation practices among Roman-period potters in the Orte/Vasanello area of the central Tiber Valley of Italy. A study of modern folk potters at Vasanello revealed a complex pattern of clay utilization. A selection of local clays, pottery produced by Vasanello potters, and ceramics from two Roman ceramic production sites was subjected to mineralogical analysis (x-ray diffraction, petrographic) for purposes of comparison. The results indicate that similar clay sources were exploited by potters in both periods, and that the materials obtained from these were likely employed for similar functional varieties of pottery.

Verification of fresh grass feeding, pasture grazing and organic farming by FTIR spectroscopy analysis of bovine milk

2014 ◽  
Vol 60 ◽  
pp. 59-65 ◽  
Author(s):  
Edoardo Capuano ◽  
Jan Rademaker ◽  
Harrie van den Bijgaart ◽  
Saskia M. van Ruth
Keyword(s):  
Ftir Spectroscopy ◽  
Organic Farming ◽  
Bovine Milk ◽  
Spectroscopy Analysis

scholarly journals Effect of a Sodium Fluoride-Releasing Rubber Cup on Hydroxyapatite Crystallinity of Human Enamel: FTIR Spectroscopy Analysis

2020 ◽  
Vol 03 (01) ◽  
Author(s):  
Giulia Orilisi ◽  
Riccardo Monterubbianesi ◽  
Vincenzo Tosco ◽  
Carla Conti ◽  
Maurizio Procaccini ◽  
...  
Keyword(s):  
Ftir Spectroscopy ◽  
Sodium Fluoride ◽  
Spectroscopy Analysis ◽  
Human Enamel

scholarly journals Successfully Dating Rock Art in Southern Africa Using Improved Sampling Methods and New Characterization and Pretreatment Protocols

Radiocarbon ◽  
2016 ◽  
Vol 59 (3) ◽  
pp. 659-677 ◽  
Author(s):  
A Bonneau ◽  
R A Staff ◽  
T Higham ◽  
F Brock ◽  
D G Pearce ◽  
...  
Keyword(s):  
Raman Spectroscopy ◽  
Ftir Spectroscopy ◽  
Southern Africa ◽  
Sampling Methods ◽  
Rock Art ◽  
Sampling Strategy ◽  
Spectroscopy Analysis ◽  
Acid Base

AbstractWorldwide, dating rock art is difficult to achieve because of the frequent lack of datable material and the difficulty of removing contamination from samples. Our research aimed to select the paints that would be the most likely to be successfully radiocarbon dated and to estimate the quantity of paint needed depending on the nature of the paint and the weathering and alteration products associated with it. To achieve this aim, a two-step sampling strategy, coupled with a multi-instrument characterization (including SEM-EDS, Raman spectroscopy, and FTIR spectroscopy analysis) and a modified acid-base-acid (ABA) pretreatment, was created. In total, 41 samples were dated from 14 sites in three separate regions of southern Africa. These novel protocols ensure that the14C chronology produced was robust and could also be subsequently applied to different regions with possible variations in paint preparation, geology, weathering conditions, and contaminants.

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