Modifiye MWCNT/CuO Nanokompozitlerinin Optik Özellikleri ve Elektriksel İletkenlikleri Üzerine Non-iyonik Sürfektanın Etkisi

Year 2021, Issue: 28, 306 - 311, 30.11.2021

Filiz Boran

https://doi.org/10.31590/ejosat.998137

Abstract

Önceden sentezlenen CuO nanoparçacıklarının ve MWCNT/CuO nanokompozitlerinin yapısal ve optik özellikleri üzerine farklı türev (polietilen glikol metil eter metakrilat) (PEGMEMA) ve moleküler ağırlıklara (Mw: 200, 2000 ve 5000) sahip polietilen glikol (PEG) noniyonik sürfektan kullanılmasının etkisi, X-ışını kırınımı (XRD), Enerji Dağılım X-Işınları analizi (EDS) ve UV-vis spektrofotometre ile kapsamlı bir şekilde araştırıldı. Bu örneklerin elektriksel iletkenlikleri iki nokta prob tekniği kullanılarak ölçüldü. Örneklerin X-ışını kırınım spektroskopisi verilerinden CuO nanoparçacıklarının ve MWCNT/CuO nanokompozitlerinin sırasıyla %36,7-44,6 ve %19,9-20,7 kristaliniteye sahip oldukları belirlendi. UV-vis spektrofotometre ölçümleri, non iyonik sürfektan kullanılması ile CuO nanoparçacıklarının ve MWCNT/CuO nanokompozitlerinin sırasıyla 4,24-4,31 eV ve 4,24-4,35 eV aralıklarında yüksek enerji bant aralıklarına sahip olduklarını göstermektedir. PEGMEMA kullanılması ile CuO nanoparçacıklarının ve MWCNT/CuO nanokompozitlerinin elektriksel iletkenlik değerleri sırasıyla 3,75 x10-5'den 7,93 x10-5 S/cm'e ve 55,75'den 86,25 S/cm'e arttırılarak önemli ölçüde iyileştirildiği söylenebilir.

Keywords

CuO, Eleketriksel İletkenlik, Enerji bant aralığı, Enkapsülasyon, Kristalinite, MWCNT

Supporting Institution

Hitit Üniversitesi Bilimsel Araştırma Projesi Birimi

Project Number

MUH19002.18.002

Thanks

Bu çalışma, Hitit Üniversitesi Bilimsel Araştırma Projesi, Türkiye [Proje no: MUH19002.18.002] tarafından desteklenmiştir.

Effect of Non-ionic Surfactant on Optical Properties and Electrical Conductivity of Modified MWCNT/CuO Nanocomposites

Abstract

The effect of using polyethylene glycol (PEG) nonionic surfactant with different derivatives (polyethylene glycol methyl ether methacrylate) (PEGMEMA) and molecular weights (Mw: 200, 2000 and 5000) on the structural and optical properties of previously synthesized CuO nanoparticles and MWCNT/CuO nanocomposites was extensively investigated via X -ray diffraction (XRD), Energy Dispersion X-Ray analysis (EDS) and UV-vis spectroscopy. The electrical conductivity of these samples was measured using the two-point probe technique. From the X-ray diffraction spectroscopy data of the samples, it was determined that CuO nanoparticles and MWCNT/CuO nanocomposites had crystallinity of 36.7-44.6% and 19.9-20.7%, respectively. UV-vis spectrophotometer measurements showed that CuO nanoparticles and MWCNT/CuO nanocomposites had high energy band gaps in the range of 4.24-4.31 eV and 4.24-4.35 eV, respectively, with the use of non-ionic surfactant. It can be said that the electrical conductivity values of CuO nanoparticles and MWCNT/CuO nanocomposites were significantly improved by using PEGMEMA from 3.75 x10-5 to 7.93 x10-5 S/cm and from 55.75 to 86.25 S/cm, respectively.

Keywords

CuO, Electrical Conductivity, Energy band gap, Encapsulation, Crystallinity, MWCNT

Project Number

MUH19002.18.002

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