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Total records found : 2
Simplified search suggestions : Amira Shakila Razali
12016
thesis
Pencirian filem nipis kaliksarina didop dengan nanotiub karbon untuk pengesanan ion Cd2+
Amira Shakila Razali
Tujuan utama kajian ini adalah mengkaji kesan pengaruh pendopan nanotiub karbon (NTK) ke atas struktur dua jenis kaliks[8]arina dengan menggunakan kaedah salutan berputar. Sampel kaliks[8]arina + NTK dalam bentuk filem nipis disediakan melalui pencampuran kaliks[8]arina dengan NTK di mana kaliks[8]arina dilarutkan dalam kloroform terlebih dahulu dan memberi kepekatan 0.2 mg/ml. Pada permulaan kajian, sifat-sifat molekul kaliks[8]arina melalui penghasilan filem Langmuir telah dikaji dan dibincangkan dari segi tekanan permukaan-kawasan (Π-A) isoterma tanpa NTK. Seterusnya, filem nipis yang dihasilkan melalui kaliks[8]arina didopkan dengan NTK telah dianalisis dengan menggunakan mikroskop elektron pengimbas pancaran medan (FESEM), mikroskop elektron penghantar (STEM), spektroskopi Raman dan penduga empat titik dalam menentukan ciri-ciri arus-voltan dan kekonduksian sampel. Keupayaan permukaan (ΔV) juga turut dilakukan untuk menentukan keupayaan sampel dalam pengaliran elektron. Hasil ka.....

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22021
article
Raman, FTIR, UV-Visible and FESEM studies on Calix[8]arene embedded multi-walled Carbon Nanotubes Nanocomposites using spin coating technique
Amira Shakila Razali
In this research, the preparation and characterization of the organic compound calix[8]arene (TBC8) are embedded with multi-walled carbon nanotubes (MWCNTs) using spin coating technique. The nanocomposites were prepared layer by layer, where TBC8 was dissolved in chloroform solution (0.2 mg/mL), followed by the additional layer of MWCNTs in the upper nanocomposites. We have explored the effects of TBC8 being modified with MWCNTs by Raman, where the crystallinities of the nanocomposites were observed. By Fourier Transform Infrared (FTIR) analysis, the nanocomposites' characteristic patterns have been detected. Ultraviolet-visible spectroscopy defines the fingerprints and the shifting of the nanocomposites while Field Emission Scanning Electron Microscope (FESEM) determines the structural morphology. The TBC8 attached to the MWCNTs has a future potential application for the development of the sensor in pollutant monitoring nano-electronics devices.  ..

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