Template-assisted Electrodeposition of Freestanding Sn, In and Sn-In Nanowire Arrays in an Ionic Liquid
Sherif
Al Kiey
Physical Chemistry Department, National Research Centre
author
Ali
El Warraky
Physical Chemistry Department, National Research Centre
author
Sayed
Abdel Rehim
Faculty of Science, ain shams University
author
Sherif
Zein El Abedin
Physical Chemistry Department, National Research Centre
author
text
article
2019
eng
In this paper we report on the template assisted electrochemical synthesis of Sn, In, and Sn-In nanowire arrays in the air and water stable ionic liquid 1-ethyl-3-methylimidazolium trifluoromethylsulfonate ([EMIm]TfO). Polycarbonate membrane was employed as a template for the synthesis of nanowires. The electrochemical synthesis of nanowire arrays occurred in two steps; the electrodeposition inside the pores of the membrane and the chemical dissolution of the membrane. The results show that high quality, freestanding nanowire arrays of Sn, In and Sn-In, can be made in the employed ionic liquid electrolytes via a template-assisted electrodeposition regime. The reported synthesis process is quite facile and assures the formation of mechanically stable, freestanding nanowire arrays.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
565
571
https://ejchem.journals.ekb.eg/article_18842_57443834e0e3f0ae57b37a98f5b9977a.pdf
dx.doi.org/10.21608/ejchem.2018.5966.1505
Green Synthesis and Characterization of Yttrium Oxide, Copper Oxide and Barium Carbonate Nanoparticles Using Azadirachta Indica (the Neem Tree) Fruit Aqueous Extract
Imad
Hamadneh
Faculty of Sciences, The University of Jordan
author
Hadeel
Alhayek
Department of Chemistry, Faculty of Science, the University of Jordan, Amman, Jordan
author
Ahmed
Al-Mobydeen
Department of Chemistry, Faculty of Science, the University of Jordan, Amman, Jordan
author
Afnan
Abu Jaber
Department of Chemistry, Faculty of Science, the University of Jordan, Amman, Jordan
author
Rula
Albuqain
Cell Therapy Center (CTC), the University of Jordan, Amman, Jordan
author
Shrouq
Alsotari
Cell Therapy Center (CTC), the University of Jordan, Amman, Jordan
author
Ammar
Al Dujaili
Hamdi Mango Center for Scientific Research, the University of Jordan, Amman, Jordan
author
text
article
2019
eng
Green chemistry was used to prepare yttrium oxide (Y2O3), barium carbonate (BaCO3), and copper oxide (CuO) nano-particles (NPs) using aqueous Neem fruit extract Azadirachta indica as a capping agent. The resulted metal complexs were calcined at temperature of 650-900oC. The produced NPs were characterized using X-ray Powder Diffraction (XRD), Scanning and Transmission Electron Microscope (STEM), Fourier transform infrared spectroscopy (FTIR), UV-Vis Spectroscopy and Thermal Gravimetric Analysis (TGA). XRD analysis confirmed the monoclinic structure for CuO NPs, orthorhombic structure for BaCO3 NPs and cubic structures for Y2O3 NPs. XRD data for the three metal oxides were matched with the ICDD standards. The crystallite size for the CuO, BaCO3 and Y2O3 NPs were 29.9, 49.0 and 10.3 nm, respectively. UV-vis spectroscopy showed that lambda max for the scanned suspended oxides were in the UV range which is an indication of the formation of nano-sized materials. STEM results showed agglomerated NPs with an average particle size of < 50 nm for all oxide samples. FTIR results confirmed that the metal-oxide bond existed and represented by bands in the range 500-700 nm-1.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
573
581
https://ejchem.journals.ekb.eg/article_24626_2f0d0c0dd3b9d86a1a20c3f0f3cde66a.pdf
dx.doi.org/10.21608/ejchem.2018.5281.1469
Study of Thermal Behavior and Anti-Breast Cancer Activity of Some New Lignin-Nanoparticle Networks Sustained with Triterpenoid Compound Isolated from Calotropis procera L. leaves
Enass
A. zghair AL-Suwaytee
Department of Chemistry, College of Science, University of Basrah, Basrah, Iraq
author
Baqer
A. Al-Mayyahi
Chemistry, Collage of science, University of Basrah, Iraq
author
Adnan
J.M. ALFartosy
Department of Chemistry, College of Science, University of Basrah, Basrah, Iraq
author
text
article
2019
eng
Abstract The aim of the present study is to provide breast cancer antibiotic from compound extracted from a cheap and available local plant (Calotropis procera L.) and preparation new two interpenetrating polymer networks(IPNs) based on biopolymer product, nature (lignin nanoparticles LNPs) and manufactured as methacrylic acid (MAA) and 2-(Dimethylamino)ethyl methacrylate (DMAEMA) were identified and evaluated by IR, thermal analysis (TGA) and scanning electron microscopy(SEM) to carry the plant extract. The efficacy of all plant extract, LNPs, and IPNs for the extract was tested using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT assay) on the MCF-7 cell line for 72 h and different concentrations. We found that all models gave different lethal effect to the cells
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
583
608
https://ejchem.journals.ekb.eg/article_24988_a4dc363b66290467a4748c2da616e2e4.pdf
dx.doi.org/10.21608/ejchem.2018.6617.1555
Cost-effective Physicochemical Treatment of Carpet Industrial Wastewater for Reuse
Fayza
Nasr
Water Pollution Research, National Research Centre, Giza, Egypt
author
Ibrahim
Abdelfattah
Water Pollution Research, National Research Centre, Giza, Egypt
author
Abdelrahman
Shana
Water Pollution Research, National Research Centre, Giza, Egypt
author
text
article
2019
eng
The main objective of this study is to investigate the efficiency of the physicochemical treatment process for removal of hazardous refractory wastewater from carpet industry. Characteristics of carpet industry wastewater in terms of COD, BOD, TSS were 60000, 110, 9800 mg/L. Their complete biodegradation is usually very slow as indicated from the immensely low value of BOD/COD, 0.002.High TSS promote the coagulation/flocculation in which coagulants such as ferric chloride, ferrous sulfate and flocculent are added to wastewater in order to destabilize the colloidal materials, eliminate as much as possible of suspended solids and organic materials. The results showed that ferric chloride (1.2g/l), flocculent (2mg/L) at pH 8 achieved COD removal efficiencies of 97% whereas using ferrous sulfate (1.8 g/l), flocculent (2 mg/L) at pH 7 achieved 98% COD removal. Corresponding TSS removal values were 96 and 97%, respectively. Furthermore, lamellar sedimentation of the treated effluent followed by sand filtration upgrades the finally treated effluent for recycling inside the factory, the residual COD and TSS were70 and5mg/L respectively.The construction cost of the treatment unit (100 m3/d) is about US$ 26000 and the running cost is about US$ 3300/year, providing a saving of about US$ 8064/year.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
609
620
https://ejchem.journals.ekb.eg/article_18214_5cf985a0f48e90877b62d8b2dc7fc9f5.pdf
dx.doi.org/10.21608/ejchem.2018.5191.1465
Multifunctional Smart Nanocolorants for Simultaneous Printing and Antibacterial Finishing of Cotton Fabrics
Ali
Hebeish
National Research Centre (Scopus affiliation ID 60014618), Textile Industries Research Division, Pretreatment and Finishing of Cellulosic based Textiles Department, 33 El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
Emad
Allam
Faculty of Applied Arts, Helwan University, Cairo, Egypt
author
Ibrahim
Abd El-Thalouth
National Research Centre (Scopus affiliation ID 60014618), Textile Industries Research Division, Dyeing, Printing and Textile Auxiliaries Department, 33 El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
Amira
Ragheb
National Research Centre (Scopus affiliation ID 60014618), Textile Industries Research Division, Dyeing, Printing and Textile Auxiliaries Department, 33 El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
Asmaa
Shahin
national research centre
author
Hanan
Shaban
National Research Centre (Scopus affiliation ID 60014618), Textile Industries Research Division, Dyeing, Printing and Textile Auxiliaries Department, 33 El-Behouth St. (former El-Tahrir str.), Dokki, P.O. 12622, Giza, Egypt
author
text
article
2019
eng
The presented work studied the synthesis a new multifunctional smart nanocolorant based on natural clay (montmorillonite K10), chitosan and metal nanoparticles (CuO, ZnO, TiO2 or Ag) using ultrasonic technology. The prepared nanocolorants were characterized for their particle size and properties. These nanocolrant were used in printing paste for application to cotton fabric before and after sonication. Surface morphology antibacterial activity and fastness properties were evaluated for treated fabrics. It is observed that fabrics printed with prepared materials after sonication acquire much smoother surface than those printed with prepared materials before sonication. The new hybrid particles are small enough to diffuse into fibers and they create high fastness properties. In addition, printed fabrics with hybrids particles are highly fixed on the fiber surface.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
621
637
https://ejchem.journals.ekb.eg/article_18841_0fb014fcb25f536247bb48e183d96072.pdf
dx.doi.org/10.21608/ejchem.2018.5740.1496
Characterization of Nano-crystalline Samaria-Fe and Yttria-Fe Co-doped Ceria Solid Solutions Prepared by Hydrothermal Technique
Ahmed
El Maghraby
Chemistry department, College of science, Taif University, KSA
author
text
article
2019
eng
Powders of Samaria, Yttria doped ceria and co-doped with iron were synthesized by hydrothermal method. The iron content for all the investigated compositions is 0.5 wt. %. The powders were investigated by thermogravimetric analysis (TGA) X-ray diffraction (XRD), Infrared (IR), Transmission electron microscope (TEM) and Raman specra. The effect of autoclaving time on the crystallinity was studied. The powders were impacted and sintered at different temperatures. The density and linear shrinkage were investigated for all sintered bodies. XRD revealed that the powders crystallize in fluorite centered cubic structure with the improvement in crystallinity. The presence iron in the solid solution lowered the degree of crystallinity. TEM images for the co-doped powders displayed semi-rounded nano-sized particles with narrow size distribution. It is concluded that the optimum fluorite structure for solid solutions is obtained with 10 mol % Samaria doped ceria (10SDC)Fe and iron codoped 10 mol % Yttria doped ceria (10YDC) Fe samples.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
639
654
https://ejchem.journals.ekb.eg/article_19205_c95e9b8ca3147f1145ba5dd068a7d9d5.pdf
dx.doi.org/10.21608/ejchem.2018.5187.1460
Ultrasonic and Thermal Properties of Bismuth Borotellurite Glasses Doped with NdCl3
M
El-Gazery
National Institute of Standards
author
A.A.
Ali
Glass Res. Dept., National Res.
author
R
El-Mallawany
Phys. Dept., Fac. of Sci., Monoufia University, Egypt,
author
text
article
2019
eng
Abstract Bismuth borotellurite glass systems in the form of 65B2O3-12.5TeO2-12.5Bi2O3 - (10-x) Na2O - xNdCl3, x=0, 1, 2, 5, and 10 mole % were melted by traditional method and their amorphous nature were examined by using XRD technique. Densities of the prepared glasses were measured and molar volumes were calculated. The ultrasonic pulse-echo technique at 4 MHz nominal frequency was used to calculate ultrasonic velocities (both of Longitudinal and Shear together). Many of known elastic moduli, such as, longitudinal (L), shear (G), Young (E) and bulk (K) moduli were obtained by using the measured density and ultrasonic velocities. Also Poisson’s ratio (σ), the softening temperature (TS), Debye temperature (θD), and microhardness (H) were calculated. The glass transition (Tg) temperature, the crystallization temperature (Tc) and the glass satiability parameters (KSP) could be calculated from the Differential thermal analysis (DTA) that has been carried out in the temperature range from 300 to about 1100 oK for all prepared samples. It is noticed that the mechanical properties (elastic moduli and hardness) of the prepared glass increase with increase of NdCl3%. Also, the softening temperature, the glass transition temperature and stability increase with the increase of NdCl3 % content.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
655
664
https://ejchem.journals.ekb.eg/article_20331_31c3c38eb45ac79eeea582fc6f141202.pdf
dx.doi.org/10.21608/ejchem.2018.5386.1474
Electrocatalytic Activities of Macro- Porous Nickel Electrode for Hydrogen Evolution Reaction in Alkaline Media
Aliaa
Mohamed
Metallurgy Dept, Faculty of Engineering, Cairo University
author
Randa
Abdel-karim
Metallurgy Dept, Faculty of engineering, Cairo university
author
text
article
2019
eng
Alkaline water electrolysis is one of the easiest methods for hydrogen production, offering the advantages of simplicity, high purity and low cost. Nickel and other transi-tion metal such as (Ni, Co, Fe and Mo) 3 D porous foams are an exciting family of cata-lysts for hydrogen production in alkaline electrolytes because of their special corrosion resistance and highly intrinsic electrocatalytic activity toward HER. In this work, macro porous Ni electrodes have been developed by dynamic hydrogen template electrodeposi-tion (DHTE) on stainless steel (AISI 304) substrates. Macro porous Ni electrodes with pore size ranging for 1.3-9.41 µm were synthesized by galvanostatic deposition at high current densities. Higher current density and longer deposition time lead to coarsening of pore size obtained. On the other hand, increasing the concentration of NH4Cl additives lead to a remarkable reduction in pore size. The activity for hydrogen evolution reaction (HER) on the obtained layers was evaluated by using potentiodynamic polarization curves and electrochemical impedance spectroscopy (EIS) in 10 % KOH solution. The electrochemical tests results showed that Ni deposit with fine pore size (1.7 µm) mani-fests the highest intrinsic activity for HER.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
665
678
https://ejchem.journals.ekb.eg/article_17676_dfbdb244a9a2bb98040a74379c004225.pdf
dx.doi.org/10.21608/ejchem.2018.5017.1443
Sensitive determination of Paracetamol using Ferrocene Nanoparticles by Chitosan-Functionalized - Modified Carbon Past Electrode .
Waheed
Salem
Chemistry Department, faculty of science, Dam an hour University
author
text
article
2019
eng
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
679
690
https://ejchem.journals.ekb.eg/article_17870_9b778979a5ff60212ba117443767acc1.pdf
dx.doi.org/10.21608/ejchem.2018.5231.1462
PH-metric and Theoretical Studies of The Complexation of 2-[α-(o-hydroxyphenyl)ethylidenehydrazino]-4,6-dimethylquinoline and 2-[α-(o-methoxyphenyl)methylidenehydrazino]-4,6-dimethylquinoline
Fatma
Samy
Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt
author
Hussein
Seleem
Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt.
author
Ali
Taha
Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt
author
Magdy
Shebl
Department of chemistry, faculty of education, ain shams university
author
Faten
Hanfy
Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt
author
text
article
2019
eng
2-[α-(o-hydroxyphenyl)ethylidenehydrazino]-4,6-dimethylquinoline (AHQ) and 2-[α-(o-methoxyphenyl)methylidenehydrazino]-4,6-dimethylquinoline (BHQ) have been synthesized and characterization is performed by elemental analysis and electronic, vibrational and mass spectra. The pKH and log K were gritty in 75% solvent-water pH-metrically for BHQ ligand and at various temperatures for AHQ ligand. The dissociation and stability constants in the aqueous medium for BHQ ligand have been calculated by the relation of pKH or log K with solvent parameters (D, ET, AN and DN). The isokinetic temperature was determined by using a linear regression analysis (LRA) of ΔΗ° vs. ΔS° for AHQ complexes. The thermodynamic parameters of AHQ compounds were analyzed into their electrostatic (el) and non-electrostatic (non) or cratic components. Full geometrical and structural optimizations of the ligands have been performed by a DFT study by using the hyperchem program.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
691
705
https://ejchem.journals.ekb.eg/article_18215_69f4dbf8bc5c52c07f1192ae604ace69.pdf
dx.doi.org/10.21608/ejchem.2018.5110.1451
Conventional and Microwave Synthesis of Some New Pyridine Derivatives and Evaluation Their Antimicrobial and Cytotoxic Activities
Kurls
Anwer
chemistry, faculty of science, ain shams, cairo, egypt
author
Galal
Sayed
Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
author
Hamdy
Hassanan
Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
author
Mohammed
Azab
Chemistry Department, Faculty of Science, Ain Shams University, Cairo, Egypt
author
text
article
2019
eng
The newly synthesized compounds based on 2-amino-6-(2,4-dimethoxyphenyl)-4-(4-methoxyphenyl)nicotinonitrile 1. The reactivity of pyridine derivative 1 was studied towards different reagents by its reaction with malononitrile, 2-(4-chlorobenzylidene)malononitrile, ethyl cyanoacetate, cyano acetic acid, m-nitro benzaldehyde, sodium azide, formamide, acetic anhydride and/or acetic anhydride/H2SO4 to give compounds 2-5,7, 10-13, respectively. The reaction of 5 with acetyl acetone gave the bipyridine derivative 6, while reaction of compound 7 with chloroacetyl chloride and phenacyl bromide gave the azetidinone derivatives 8 and 9. The formimidate 14 were obtained via reaction of compound 1 with triethylorthoformate, while reaction of 14 with phenylene diamine and/or acetamide gave the formimidamide and pyridopyrimidine derivatives 15 and 16 respectively. Compound 1 was also allowed to react with urea, thiourea, phthalic anhydride, succinic anhydride, benzoyl chloride, chloroacetonitrile, chloroacetyl chloride, p-toluenesulfonylchloride and ethyl bromoacetate to give compounds 17a,b - 24. Reaction of compound 1 with dichloro reagents in 1:1 ratio gave the bicyclic derivatives 25a–c, while its reaction with oxalyl chloride, dichloro and tetrachlorobenzoquinone derivatives, and/or dichloronaphthoquinone gave the imidazopyridine derivatives 26-29. Reaction of compound 29 with o-phenylenediamine in 1:2 ratio afforded the di-condenesed product 30 while, reaction of compound 1 with dichlororeagents in 1:2 ratio gave the polyalkyl derivatives 31a-b. The newly synthesized compounds were characterized by IR, 1H-NMR, 13C-NMR and mass spectra. On the other hand the antimicrobial and anticancer activities of some of the newly synthesized compounds was studied and evaluated.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
707
726
https://ejchem.journals.ekb.eg/article_18381_ef82ce2ddd2c774151a3f74b3cd9176e.pdf
dx.doi.org/10.21608/ejchem.2018.5115.1452
Novel Potentiometric Sensors Based on Carbon and TiO2 Nano tubes/ β-cyclodextrin for Meclofenoxate Hydrochloride Micro Determination in Spiked Surface Water and Urine Samples
Mohamed
Khalil
Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
author
Ashraf
Abdul Aleem
Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt
author
text
article
2019
eng
The great expansion of portable analytical devices can be attributed to the development of highly efficient and stable chemical sensors. The first target of this study aims to the construction and sense of carbon paste sensors based on CNTs and TiO2 nanotubes for meclofenoxate HCl micro determination. The role affecting the behaviour of lipophilic anionic additive as well as plasticizer is discussed carefully. The constructed sensors showed Nernstian slope 57.3 ±0.55 and 58.3 ±0.1 mV decade-1 and detection limits 7.6 x 10-7 and 6.5 x 10-7 mol L-1 and quantification limits 2.5x10-6 and 2.1x10-6 mol L-1 for CNTs-CPE and TiO2-CPE, respectively. The surface morphology of the investigated sensors was studied. The selectivity behaviour of the sensors was investigated using Bakker protocol and tested in presence of the biologically important inorganic cations (Na+, K+, Mg2+ and Ca2+). The proposed potentiometric sensors were successfully performed for drug determination in pharmaceutical products, spiked surface water and human urine samples with good recovery data (99.5, 99.8 %) for CNTs-CPE and TiO2-CPE, respectively.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
727
738
https://ejchem.journals.ekb.eg/article_20084_c6b4c41b4cf6f3808fa6fb24fda31281.pdf
dx.doi.org/10.21608/ejchem.2018.5922.1503
Synthesis, Antimicrobial, Antioxidant and Docking Study of Some Novel 3,5-Disubstituted-4,5-dihydro-1H-pyrazoles Incorporating Imine Moiety
Saja
Abid
Department of Chemistry, College of Science, Mustansiriyah University, Baghdad, Iraq
author
Ahmed
Abdula
Department of Chemistry, College of Science, Mustansiriyah University, Baghdad, Iraq
author
Mohammed
Al Marjani
Department of Biology, College of Science, Mustansiriyah University, Baghdad, Iraq
author
Qais
Abdulhameed
Department of dentistry, Al-Yarmouk University College, Baghdad, Iraq
author
text
article
2019
eng
A novel series of 3,5-Disubstituted-4,5-Dihydro-1H-pyrazoles (3-9) containing imine moiety were synthesized and characterized using spectral analysis. The synthesized derivatives were In vitro screened against several bacterial species, Staphylococcus aureus, Pseudomonas aeruginosa and Acinetobacter baumannii as well as Candida albicans and revealed moderate to potent activity. The antioxidant study was confirmed for the synthesized derivatives against 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical qualitatively using TLC technique, and quantitatively by spectrophotometric method. The half maximal inhibitory concentration (IC50) was calculated for the active compounds (1-5, 8). Docking study for the potent compounds (2 and 4) against glucosamine-6-phosphate synthase, the target enzyme for the antimicrobial agents, was explored to explain the interactions of the discovered hits within the amino acid residues of the enzyme active side. The docking parameters enhanced the activity of new compounds as promising antimicrobial agents.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
739
749
https://ejchem.journals.ekb.eg/article_21203_713bb9a5176b815bd415ab7f884ce11e.pdf
dx.doi.org/10.21608/ejchem.2018.5804.1498
Sustainable Biocomposite Its Manufaturing Processes and Applications
Trinath
Biswal
Sidhibihar
Burla, Sambalpur-768018
author
Munmun
Priyadarsini
dept of chem vssut burla
author
Subhasmita
Dash
dept. of chem
vssut burla
author
text
article
2019
eng
The biocomposite materials which serve for present nation or civilization without affecting our future generation is called as sustainable biocomposite i.e., it does not affect our environment and save our environment from toxic and hazardous effect. The sources and production of the raw materials, material Processing, the service-life of the product and waste management should be evaluated in terms of energy, chemical consumption, emissions of gaseous materials, toxicology upon use and disposal of a biocomposite are considered as sustainable bio-composites. This can be formed by different manufacturing process like filament winding, lay up method, extrusion moulding, Injection moulding, compression moulding, Resin transfer moulding, Sheet moulding compound etc. Sustainable biocomposite have several advantages like light weight, high specific stiffness, high strength, low electrical conductivity, easily bondable, good fatigue resistance, internal energy storage and release, low thermal expansion, easily moulded to complex and design flexibility etc. These biocomposite have huge applications in several fields like in the field of domestic sector, building materials, aerospace industry, circuit boards and automobile applications. It supports our sustainable environment by using natural fibres like jute, hemp, sisal, knead, flax etc. which is the cause of biodegradation and can also be used in the industrial scale. It not only saves our environment but also made our life easier and more comfortable.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
751
766
https://ejchem.journals.ekb.eg/article_22492_69d48ba6285441875ab7246cbb613e90.pdf
dx.doi.org/10.21608/ejchem.2018.4669.1440
Analysis of Structural, Electrical and Electronic Properties of (Polymer Nanocomposites/ Silicon Carbide) for Antibacterial Application
Hind
Ahmed
University of Babylon
author
Ahmed
Hashim
University of Babaylon
author
Hayder
Abduljalil
University of Babylon
author
text
article
2019
eng
The structural, electronic and D.C electrical properties of,(PVA-MgO-SiC) nanocomposites for antibacterial application have been investigated. The prepared nanocomposites have low cost, flexible and high antibacterial activity. The (PVA-MgO-SiC),nanocomposites were prepared with different weight percentages of Silicon Carbide (SiC),nanoparticles., Electrical properties of ,(PVA-MgO-SiC) nanocomposites were studied with different temperature. The experimental results showed that the conductivity of (PVA-MgO-SiC),nanocomposites is increased with increase the concentration of Silicon Carbide (SiC) nanoparticles. The activation energy of,(PVA-MgO-SiC) nanocomposites decreases with increase the weight percentages of Silicon Carbide nanoparticles. The total energies of the (PVA–MgO-SiC) nanocomposites were studied by using Gaussian 09(G09) program and density functional theory (DFT) with B3LYP/6-31G) basis set. The total energies decreases with the increase the number of atoms forming the nanocomposites,.
Egyptian Journal of Chemistry
National Information and Documentation Centre (NIDOC), Academy of Scientific Research and Technology, ASRT
0449-2285
62
v.
4
no.
2019
767
776
https://ejchem.journals.ekb.eg/article_24589_3df151ded3b170513244916cfecb17d8.pdf
dx.doi.org/10.21608/ejchem.2019.6241.1522