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Bulunan: 8 Adet 0.000 sn
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Filtreler
Bulunan: 8 Adet 0.000 sn
Yayımlanma Yılı : 2018 ✕Bölümü : Kimya Mühendisliği B ... ✕
Koleksiyon [1]
Araştırmacılar [7]
BM Sürdürülebilir Kalkınma [4]
Fakültesi / Enstitütü [1]
Yayın Türü [2]
Yayımlanma Yılı [1]
Dil [2]
Kaynak [6]
Veri Tabanları [9]
İndex Türü [4]
Yayıncı [6]
Bölümü [1]
Ulusal/Uluslararası [2]
Konu Başlıkları [29]
Erişime Açık

Thermal and Optical Properties of In and In2O3 Nanoparticles Synthesized Using Pulsed Plasma in Water

Emil ÖMÜRZAK

We present small indium (In) nanoparticles with an average diameter of 4.5 nm synthesized by pulsed plasma in water. Slightly increased lattice constants and thermal stability of the tetragonal In are revealed by X‐ray diffraction analysis, Rietveld refinement, and thermogravimetric analysis. The highly crystalline body‐centered cubic indium oxide (In2O3) nanoparticles with an average diameter of 12 nm and various shapes (semispherical, semihexagonal, and semicubic) are obtained by annealing the as‐synthesized In nanoparticles at 450 °C. The bandgap energy of the In2O3 nanoparticles is 3.63 eV ...Daha fazlası

Makale 2018 Mühendislik Fakültesi Physica Status Solidi (A) – Applications and Materials Science215 ( 11 ) 65 Görüntülenme
Erişime Açık

Electrochemical Detection of Cadmium and Lead in Rice on Manganese dioxide Reinforced Carboxylated Graphene Oxide Nanofilm

Ali Osman SOLAK

Manganese dioxide decorated carboxylated graphene oxide (Mn-GO-COOH) attached onto the glassy carbon (GC) electrode to develop a new method for the simultaneous determination of Cd2+ and Pb2+ ions in rice samples. Graphene oxide (GO) was attached on 4-aminophenyl covalently modified glassy carbon surface via amide reaction. As-prepared modified material was characterized with XPS, SEM and electrochemical methods. A novel differential pulse anodic stripping voltammetric (DPASV) method was developed for the simultaneous determination of Cd2+ and Pb2+ on the GC/Mn-GO-COOH nanoplatform electrode. ...Daha fazlası

Makale 2018 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)6 ( 2 ) 45 Görüntülenme
Erişime Açık

Synthesis, Characterization and Modification of Novel Food Packaging Material from Dimethyl acrylamide/Gelatin and Purple Cabbage Extract

Nahit AKTAŞ

A novel and functional Multi-Responsive Hydrogel (MRH) was synthesized form N, N dimethyl acrylamide (DMAAm), gelatin, citric acid (CA) and purple cabbage extract (PCE) to be utilized as smart food packaging material. The MRH, which was p(Gelatin-co-DMAAm)/CA-PCE, was synthesized through redox polymerization technique as film form in petri dishes. Mechanical and water resistances of the MRH was improved by addition of citric acid and N, N, methylenebisacrylamide (MBA) as cross linker. PCE was added to the reaction mixture to obtain antimicrobial, antioxidant and anthocyanin properties. Dynamic ...Daha fazlası

Makale 2018 Mühendislik Fakültesi MANAS Journal of Engineering (MJEN)6 ( 2 ) 66 Görüntülenme
Erişime Açık

Synthesis of Nanomaterials by the Pulsed Plasma in Liquid and their Bio-medical Applications

Emil ÖMÜRZAK | Ruslan ADİL AKAY TEGİN

Pulsed plasma in liquid is a simple, ecologically friendly, cost-efficient method based on electrical discharge between two metal electrodes submerged into a dielectric liquid. We synthesized carbon-encapsulated Fe (Fe@C) magnetic nanoparticles with low cytotoxicity using pulsed plasma in a liquid. Body-centered cubic Fe core nanoparticles showed good crystalline structures with an average size between 20 and 30 nm were encapsulated in onion-like carbon coatings with a thickness of 2–10 nm. Thermal gravimetric analysis showed a high stability of the as-synthesized samples under thermal treatme ...Daha fazlası

Konferans Bildirisi 2018 Mühendislik Fakültesi 2017 International Conference on Aerospace Technology, Communications and Energy Systems (ATCES 2017)302 ( UNSP 012076 ) 94 Görüntülenme
Erişime Açık

Copper Nanoparticles: Synthesis and Biological Activity

Emil ÖMÜRZAK | Tinatin DOOLOTKELDİEVA | Saykal BOBUŞOVA

By means of XRD and FESEM analysis, it is established that copper nanoparticles with sizes less than 10 nm are formed during the chemical reduction, which form aggregates mainly with spherical shape. Presence of gelatin during the chemical reduction of copper induced formation of smaller size distribution nanoparticles than that of nanoparticles synthesized without gelatin and it can be related to formation of protective layer. Synthesized Cu nano-powders have sufficiently high activity against the Erwinia amylovora bacterium, and the bacterial growth inhibition depends on the Cu nanoparticles ...Daha fazlası

Konferans Bildirisi 2018 Mühendislik Fakültesi 2017 International Conference on Aerospace Technology, Communications and Energy Systems (ATCES 2017)302 ( UNSP 012075 ) 187 Görüntülenme
Erişime Açık

The investigation of the chemical and technological properties of biomass waste from plant raw materials = Исследование химико-технологических свойств отходов биомассы растительного сырья

Külümkan SARTOVA

Целью данной работы является изучение технического, химического и группового состава биомассы хлопчатника (лат. Gossypium) и полыни – эстрагона (лат. Artemisia Dracunculus L.) для установления их пригодности при получении химических продуктов. Результаты исследования позволили установить, что биомасса хлопчатника и полыни – эстрагона может быть использована в качестве сырья для получения химических продуктов и адсорбентов. Исследование химического состава анализируемых растений показало, что их можно использовать в дальнейшем для получения целлюлозы (37 до 48%), лигнина (21–31%), гемицеллюлоз ...Daha fazlası

Makale 2018 Mühendislik Fakültesi Химия растительного сырья / Khimiya Rastitel'nogo Syr'ya ( 4 ) 75 Görüntülenme
Erişime Açık

A novel highly sensitive carbon-based HMPD/GC sensor electrode: copper ions analysis in flour and water samples

Ali Osman SOLAK

In this research, (Z)-2-(2-(hydroxyimino)-2-(3-methyl-3-phenylcyclobutyl) ethyl)-3a,7a-dihy-dro-1H-isoindole-1,3(2H)-dione, HMPD molecule has been grafted to the glassy carbon (GC) electrode surface. The HMPD-modified GC electrode has been originally developed and it used for the quantitative determination of Cu(II) in flour and water samples. The modification steps have been performed using cyclic voltammetry (CV). CV, electrochemical impedance spectroscopy and scanning electron microscopy have been employed for the characterization processes. Cu(II) standard solutions changing from 1.0 x 10( ...Daha fazlası

Makale 2018 Mühendislik Fakültesi Desalination and Water Treatment112 56 Görüntülenme
Erişime Açık

Effect of surfactant materials to nanoparticles formation under pulsed plasma conditions and their antibacterial properties

Emil ÖMÜRZAK | Ruslan ADİL AKAY TEGİN

Pulsed plasma between two Zn rods submerged into aqueous solution of cetyl trimethylammonium bromide (CTAB) and sodium dodecyl sulphate (SDS) surfactants resulted in formation of pure ZnO nanorods, while the pulsed plasma between two Zn rods in water without surfactant yielded a mixture of ZnO and Zn nanoparticles. Carbon coated ZnO nanorods with about 20 nm thickness and 150 nm length were synthesized by this method using different surfactant materials such as CTAB and SDS. Cu nanoparticles of about 10 nm in size were also synthesized by the pulsed plasma in aqueous solution of 0.2 % gelatine ...Daha fazlası

Konferans Bildirisi 2018 Mühendislik Fakültesi Materials Today: Proceedings5 ( 7-3 ) 106 Görüntülenme
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