scholarly journals Characterization of Cacao Fruit Skin for Active Carbon and Green Chemicals

2017 ◽  
Vol 2 (1) ◽  
pp. 66 ◽  
Author(s):  
Mohammad Wijaya.M ◽  
Muhammad Wiharto
Keyword(s):  
Development Program ◽  
Xrd Analysis ◽  
Combustion Products ◽  
Wave Number ◽  
Hydroxyl Group ◽  
Biomass Waste ◽  
Crystallinity Degree ◽  
Liquid Smoke ◽  
Fruit Skin ◽  
Ft Ir

<p>PThe potential of cacao fruit skin that has not been widely used by the community are encouraged to develop the cacao fruit skinas bio charcoal. One way to reduce the build up of biomass waste is by pyrolysis derived from combustion products that produce liquid smoke, charcoal and some gases (CO<sub>2</sub>, H<sub>2</sub>, and CO<sub>2</sub>). The purpose of this research is to utilize cacao peel to get the liquid smoke of cacao skin and cacao charcoal. The result of this research showed that the skin of cacao fruit produce hemicellulose content of 21.06%, cellulose of 20.15% and lignin of 51.98%. The analysis result of carbon content of cacao skin activated charcoal from Luwu regency is 55.11%. FT-IR analysis of the cacao skin powder from Luwu regency showed that there were depolymerization for cellulose and hemicellulose contentsat the wave number of 1107.14 cm<sup>-1</sup> andfound C-H of lignin at the wave number of 1730.15 cm<sup>-1</sup>. The hydroxyl group (OH) appeared on the wave number of 3441.01 cm<sup>-1</sup> and group of C = CH (Aromatic H) on the wave number of781.17 – 659.66 cm<sup>-1</sup>. Crystallinity degree of cacao fruits skin from Luwu which was obtained from XRD analysis is 12.66%. The wasteutilization of this cacao fruit skin with pyrolysis technology is able to reduce carbon emissions and can be as a supporter of sustainable development program.</p>

scholarly journals THE ISOLATION OF COMPOUND POLYPHENOL FROM WAJO DISTRICT CACAO BEAN AND CACAO WASTE THROUGH FERMENTATION PROCESS

2016 ◽  
Vol 5 (2) ◽  
pp. 81
Author(s):  
Muhammad Wijaya ◽  
Muhammad Wiharto
Keyword(s):  
Oil And Gas ◽  
Chemical Compounds ◽  
Hydroxyl Group ◽  
Cocoa Bean ◽  
Crystallinity Degree ◽  
Liquid Smoke ◽  
Acid Methyl ◽  
Waste Shell ◽  
Anti Oxidant ◽  
Cocoa Shell

This research aims to utilize the liquid smoke, charcoal, oil and gas that have been produced from cocoa waste shell from fast pyrolysis technology at 125-500 oC. The charcoal of the cocoa waste was analyzed using a bomb calorimeter at 5925 cal/g showed that it contains 52.02% of lignin; 17.27% of alpha cellulose and 19.56% of hemicellulose, respectively. The HPLC analysis of Wajo district cacao bean resulted in polyphenol compound as 308.35. GC-MS analysis of cocoa shell liquid smoke that pyrolized at 125-500 oC produces severals compounds such as acetic acid, n-buthane, methyl esther, propanoac acid, butanoac acid, methyl pyridine, 1-hydroxy-2-propanone, and mequinol. The FTIR analysis of cocoa bean showed a hydroxyl group at 3450.65 cm-1, carbonyl group at 1730.15 cm-1, CH group at 719.45-607.58 cm-1. The crystallinity degree of Wajo District cocoa shell analyzed using XRD was 26,50%. The existence of chemical compounds in liquid smoke products have been found as raw chemicals.  Content of biomass carbon at these cacao waste increased according to the increase of pyrolisis temperature, while the carbon emission of these three materials decreased as the temperature increased. Compound polyphenol from cacao bean has a potent as anti oxidant that is friendly  for environmental and healthy. Keywords: cacao  bean, fermentation,  polyphenol,  and  chemical

FT-IR Spectroscopic and XRD Studies on Tris-Thiourea Strontium Chloride Single Crystals

2011 ◽  
Vol 8 (1) ◽  
pp. 201-204
Author(s):  
H. O. Jethva ◽  
R. R. Hajiyani
Keyword(s):  
Single Crystals ◽  
Xrd Analysis ◽  
Wave Number ◽  
Strontium Chloride ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
Number Range ◽  
Aqueous Solvent ◽  
Powder Xrd Analysis ◽  
Ft Ir

There are various nonlinear optical materials having crystalline nature and find various applications in science and technology. Tris-thiourea strontium chloride was synthesized and single crystals were grown by the slow solvent evaporation technique using aqueous solvent. The grown crystals were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), and X-ray diffraction analysis (XRD). The FT-IR spectra of these crystals were recorded in the wave number range 400-4000 cm-1 which reveals the presence of various functional groups. The powder XRD analysis suggested orthorhombic crystal structure.

Acid-activated Sodium Bentonite and Kaolin Clay: Comparative Study by Physicochemical Properties

2020 ◽  
Vol 23 (5) ◽  
pp. 433-445
Author(s):  
Awinash Kumar ◽  
Pradip Lingfa
Keyword(s):  
Comparative Study ◽  
Xrd Analysis ◽  
Hydroxyl Group ◽  
Kaolin Clay ◽  
Acid Activation ◽  
Sodium Bentonite ◽  
Characterization Methods ◽  
Band Position ◽  
Before And After ◽  
Ft Ir

Aim and Objective: This paper aims to reveal the useful industrial aspects of kandite and montmorillonite group of clays using as a catalyst after acid activation. A comparative study of modified characteristics of clay samples has been explored based on industrial requirements. Materials and Methods: In this study sodium bentonite and kaolin clay have been focused. The modified characteristics of clay samples are investigated by characterization methods of FT-IR, XRD, SEM/EDAX, TGA and DSC before and after treated with 4M of Hydrochloric acid. Clay samples were refluxed at 105ºC and calcined at 500ºC consecutively for 3 hours at room temperature. Results: Maximum crystalline size 104.02 nm has been evaluated for acid-activated sodium bentonite. Alkyl halides compounds have a strong band position for all samples and have more extent on acid activation. The small numbers of manganese particles have been noticed in the acidactivated samples. 14% of decrement and 61.02% of increment of aluminates have been found respectively for acid-activated kaolin and acid-activated sodium bentonite. Conclusion: The novelty of this study is about sodium bentonite characterization and the results show the prominent behaviour with structural, elemental, morphological, and thermal analysis. Acid-activated kaolin sample has less effect in comparison with acid-activated sodium bentonite. As the removal of the hydroxyl group of compounds has been reported through FT-IR and XRD analysis also some other industries like ceramic and paper industries may have accepted these types of modified minerals for special production with a simple process.

scholarly journals FT-IR Spectroscopic and XRD Studies on Tetra-thiourea Strontium Chloride Single Crystals

2012 ◽  
Vol 9 (1) ◽  
pp. 165-167
Author(s):  
H. O. Jethva ◽  
R. R. Hajiyani2
Keyword(s):  
Single Crystals ◽  
Xrd Analysis ◽  
Wave Number ◽  
Strontium Chloride ◽  
Orthorhombic Crystal ◽  
Orthorhombic Crystal Structure ◽  
Number Range ◽  
Aqueous Solvent ◽  
Powder Xrd Analysis ◽  
Ft Ir

There are various nonlinear optical materials having crystalline nature and find various applications in science and technology. Tetra-thiourea strontium chloride was synthesized and single crystals were grown by the slow solvent evaporation technique using aqueous solvent. The grown crystals were characterized by Fourier Transform Infrared Spectroscopy (FT-IR), and Xray diffraction analysis (XRD). The FT-IR spectra of these crystals were recorded in the wave number range 400-4000cm-1 which reveals the presence of various functional groups. The powder XRD analysis suggested orthorhombic crystal structure.

Structural, Thermal and Electrical Properties of Doped Poly(3,4 ethylenedioxythiophene)

2016 ◽  
Vol 10 (4) ◽  
pp. 395-400 ◽  
Author(s):  
Deepali Kelkar ◽  
◽  
Ashish Chourasia ◽  
◽  
Keyword(s):  
Crystal Structure ◽  
Electrical Properties ◽  
Xrd Analysis ◽  
Structure Modification ◽  
Camphorsulfonic Acid ◽  
Thermal And Electrical Properties ◽  
Ft Ir

Poly(3,4-ethylenedioxythiophene) (PEDOT) was chemically synthesized, undoped and then re-doped using FeCl3 as well as camphorsulfonic acid (CSA). FT-IR results confirm the nature of the synthesized and doped samples. XRD analysis indicates crystal structure modification after doping and was also used to calculate crystallinity of samples. Crystallinity increases after FeCl3 doping, whereas it reduces due to CSA doping. TGA-DTA results show reduction in Tg value for FeCl3 doped sample while it increases for CSA doped samples compared to that of undoped PEDOT. Reduction in Tg indicates plasticizing effect of FeCl3 whereas increase in Tg show anti-plasticizing effect of CSA in PEDOT. Conductivity value () increases by two orders of magnitude after doping. Log vs. 1/T graph show metallic nature of undoped PEDOT above 308 K, however both doped samples show semiconducting nature from 301 to 383 K.

scholarly journals Preparation and characterization of corn starch/PVA/glycerol composite films incorporated with ε-polylysine as a novel antimicrobial packaging material

e-Polymers ◽  
2020 ◽  
Vol 20 (1) ◽  
pp. 154-161 ◽  
Author(s):  
Gao Yurong ◽  
Li Dapeng
Keyword(s):  
Water Solubility ◽  
Corn Starch ◽  
Composite Films ◽  
Antimicrobial Properties ◽  
Xrd Analysis ◽  
Sem Analysis ◽  
Packaging Material ◽  
Hydroxyl Group ◽  
Electron Microscopic ◽  
Antimicrobial Packaging

AbstractCorn starch/polyvinyl alcohol (PVA)/glycerol composite films incorporated with ε-polylysine were prepared, and their properties were investigated. The Fourier-transform infrared (FTIR) spectroscopy indicated that the interactions happened between the amino group of ε-polylysine and hydroxyl group starch/PVA composite films. X-ray diffraction (XRD) analysis showed that the addition of ε-polylysine decreased the intensity of all crystal peaks. Thermogravimetric (TGA) analysis suggested that ε-polylysine improved the thermal stability of composite films. Scanning electron microscopic (SEM) analysis showed that the upper surface of composite films incorporated with ε-polylysine presented more compact and flat surface. The antimicrobial activity of the composite film progressively increased with the increasing of ε-polylysine concentration (P < 0.05). The tensile strength, elongation at break and water absorption significantly increased, whereas water solubility decreased with the increasing of ε-polylysine concentration (P < 0.05). Therefore, the corn starch/PVA/glycerol composite films incorporated with ε-polylysine had good mechanical, physical and antimicrobial properties and could have potential application as a novel antimicrobial packaging material.

scholarly journals Analysis of the Pyrolytic Behaviour of Birch, Maple, and Rowan Leaves

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2091
Author(s):  
Valentina Zubkova ◽  
Andrzej Strojwas ◽  
Marcin Bielecki
Keyword(s):  
Combustion Products ◽  
Carbonyl Groups ◽  
Chemical Parameters ◽  
Chemical Reagents ◽  
Urban Greenery ◽  
Volatile Products ◽  
Different Types ◽  
Ft Ir ◽  
Xrd Techniques ◽  
Lower Contribution

A research study was conducted on the thermal behaviour of leaves of urban greenery (birch, maple, and rowan) and the products of their pyrolysis and extraction as assisted by microwaves. The obtained products of pyrolysis and extraction were investigated with the use of FT-IR and UV spectroscopies and XRD techniques. A contractive analysis of samples of chars, condensates, after-extraction residue, and extracts showed that the changes in structural-chemical parameters of leaves of different types of trees during pyrolysis and extraction take place in distinct ways. About 22% of material was removed from birch leaves during extraction, and more than 17% of material was extracted from maple and rowan leaves. It was determined that, during pyrolysis of after-extraction residue of leaves, many fewer PAH compounds with carbonyl groups along with alcohols and phenols are emitted than during pyrolysis of non-extracted leaves. Taking into account that pyrolysis is the first stage of combustion, a decrease in the amount of dangerous compounds in the volatile products of pyrolysis leads to a lower contribution of such compounds in combustion products. This indicates that leaves of urban greenery can be subjected to combustion after extraction, and the obtained extracts can be used as a source of phytochemicals and chemical reagents.

A study on using expanded perlite with hydroxyapatite: Reinforced bio-composites

2021 ◽  
pp. 095441192199656
Author(s):  
Erdoğan Karip ◽  
Mehtap Muratoğlu
Keyword(s):  
Body Fluid ◽  
Xrd Analysis ◽  
Cold Isostatic Pressing ◽  
Expanded Perlite ◽  
X Ray Diffraction ◽  
Pressing Method ◽  
X Ray ◽  
Infra Red ◽  
Ft Ir

People are exposed to different kinds of diseases or various accidents in life. Hydroxyapatite (HA) has been widely employed for bone treatment applications. In this study, HA was extracted from sheep bones. Bio-composites were doped with 1, 5, and 10 wt.% of expanded perlite and 5 wt.% of ZrO2–MgO-P2O5. The bio-composites were prepared by the cold isostatic pressing method (250 MPa) and sintered at 900°C for 1 h. In order to evaluate the characteristics of the bio-composites, microhardness, density, X-ray diffraction (XRD), Fourier transform infra-red spectroscopy (FT-IR), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) analyses were carried out on them. Additionally, the specimens whose characteristics were determined were kept in synthetic body fluid (SBF), and their in vitro behavior was examined. As a result, it was observed that microhardness increased as both the weight and the grain size of the expanded perlite were increased. Calcium silicate, tri-calcium phosphate, and hydroxyapatite were observed in the XRD analysis of all samples, and the formation of apatite structures was increased by addition of ZrO2–MgO–P2O5.

The Characteristic Evaluation of Hydroxyapatite Powders Synthesized from CaCO3 Refined from Oyster Shell and H3PO4

2006 ◽  
Vol 118 ◽  
pp. 639-644
Author(s):  
Hye Sung Kim ◽  
Su Chak Ryu
Keyword(s):  
Bone Density ◽  
Inductively Coupled Plasma ◽  
Oyster Shell ◽  
Atomic Emission ◽  
Xrd Analysis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Inductively Coupled ◽  
Infra Red ◽  
Ft Ir

Hydroxyapatite (Ca10(PO4)6(OH)2, HAp) powders is synthesized using the mixed powders of CaCO3 refined from oyster shells and phosphoric acid (H3PO4-98%, Daejung) as starting materials. The characteristic evaluation and chemical analysis of the synthesized powders is performed by X-ray diffraction (XRD), Fourier-transformed infra-red spectroscopy (FT-IR), and inductively-coupled plasma atomic emission spectroscopy (ICPAES). XRD analysis of synthetic powder by heat treatment at 1300°C for 2hrs shows only HAp peaks corresponding to stoichiometric HAp. It is confirmed by ICP-AES test that impurities such as Zn, In, Ti, Ba, Cd, Pb, and Mn, is not detected at all, but small amounts of Ti and Be is observed (0.099ppm Ti and 0.002ppm Ba). Variation of bone density is measured by giving medication of HAp powder with drinking water into human body continuously for three month. After the medication, the bone density is higher than the medication before. This means that HAp powder made from this process can be used as improver of bone density.

Effects of the Different Crystallization Time on Synthesis of Zeolite 4A from by-Products of Polysilicon Production Process

2011 ◽  
Vol 347-353 ◽  
pp. 246-251
Author(s):  
Xing Yong Liu ◽  
Min Li ◽  
Hong Chen ◽  
Wei Wei
Keyword(s):  
Production Process ◽  
Degree Of Crystallinity ◽  
Crystallization Time ◽  
Crystallinity Degree ◽  
Structure Morphology ◽  
Zeolite 4A ◽  
Single Structure ◽  
Ft Ir ◽  
The Degree Of Crystallinity ◽  
By Products

Pure form,single phase and high crystalline zeolite 4A samples were synthesized during hydrothermal treatment of by-products in polysilicon production process. The effects of the different crystallization time on the degree of crystallinity, skeleton structure, morphology, size of the particle and its distribution of zeolite 4A samples were investigated using XRD,FT-IR,SEM and Zetasizer. The results indicated that the zeolite 4A sample featured high crystallinity degree, excellent dispersivity, high purity and single structure.

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