Fabrication and characterization of semiconductor nickel oxide (NiO) nanoparticles manufactured using a facile thermal treatment
Manal Hashem,Elias Saion,Naif Mohammed Al-Hada,Halimah Mohamed Kamari,Abdul Halim Shaari,Zainal Abidin Talib,Suriati Paiman,Mazliana A. Kamarudeen +7 more
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In this paper, thermal treatment procedures were used to prepare crystalline nickel oxide semiconductor nanoparticles, derived from an aqueous solution, which consists of three compounds, primarily nickel nitrate, polyvinyl pyrrolidine and deionised H 2 O acting as metal precursor, capping agent and solvent, respectively.Abstract:
In this paper, thermal treatment procedures were utilised to prepare crystalline nickel oxide semiconductor nanoparticles, derived from an aqueous solution. The solution consists of three compounds, primarily nickel nitrate, polyvinyl pyrrolidine and deionised H 2 O acting as metal precursor, capping agent and solvent, respectively. The solution was made prior to the drying, grinding and calcination at varying temperature settings up to 800 °C. The scanning Electron Microscopy (SEM) images allowed a detailed study on the morphological of the monocrystalline grains which were obviously observed in the specimen, showing them to be almost identical in shape and size. The Infrared Fourier Transform (FTIR) and X-ray diffraction (XRD) results demonstrated a transformation of the amorphous structure at room temperature to the crystalline structure at higher temperatures during calcination process. The mean particle diameter and particle distribution were found to be directly proportional to temperature increased. The transmission electron microscopic (TEM) analysis revealed that the particle diameters vary between 15 and 35 nm when temperature increased between 500 and 800 °C. The composition of the specimens was delineated by energy dispersed X-ray spectroscopy (EDX), which identified nickel and oxygen atomic percentages in the final products. Optical characteristics were deducted from a UV–Vis reflectance spectrophotometer, which demonstrated the energy band gap decrement as the calcination temperatures increased. Magnetic properties were determined through electron spin resonance spectroscopy (ESR), which revealed the presence of unpaired electrons. The magnetic field resonance decreases along with an increase of the g-factor value as the calcination temperature increased from 500 to 800 °C.read more
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A Review on Biosensors and Recent Development of Nanostructured Materials-Enabled Biosensors.
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Preparation of Zeolite/Zinc Oxide Nanocomposites for toxic metals removal from water
Abdullah A. Alswata,Abdullah A. Alswata,Mansor Bin Ahmad,Naif Mohammed Al-Hada,Halimah Mohamed Kamari,Mohd Zobir Hussein,Nor Azowa Ibrahim +6 more
TL;DR: In this article, a co-precipitation of Zeolite/Zinc Oxide Nanocomposite (ZnO NCs) was proposed for adsorption of Lead Pb (II) and Arsenic As (V) from aqueous solution under room pressure and temperature.
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Tuning the structural, optical and electrical properties of NiO nanoparticles prepared by wet chemical route
Sheraz Yousaf,Sonia Zulfiqar,Mahrzadi Noureen Shahi,Muhammad Farooq Warsi,Najeeb Al-Khalli,Mohamed F. Aly Aboud,Imran Shakir +6 more
TL;DR: In this article, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopic and scanning electron microscopic (SEM) techniques were used to verify the cubic phase of NiO and its derivatives.
Journal ArticleDOI
Simple synthesis of ZnSe nanoparticles by thermal treatment and their characterization
Aeshah Salem,Elias Saion,Naif Mohammed Al-Hada,Halimah Mohamed Kamari,Abdul Halim Shaari,Shahidan Radiman +5 more
TL;DR: In this article, a simple thermal treatment was used to synthesize ZnSe nanoparticles at different calcination temperatures in a nitrogen flowing, and phase analyses using energy-dispersive X-ray spectroscopy and Fourier transform infrared spectrography confirmed the presence of Zn and Se as the original compounds of prepared ZnSE nanoparticle samples.
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Synthesis and characterization of CdSe nanoparticles via thermal treatment technique
Aeshah Salem,Elias Saion,Naif Mohammed Al-Hada,Halimah Mohamed Kamari,Abdul Halim Shaari,Che Azurahanim Che Abdullah,Shahidan Radiman +6 more
TL;DR: In this paper, the synthesis of CdSe nanoparticles was undertaken via the thermal treatment method at varying calcination temperatures from 450 to 700 °C in alternate oxygen and nitrogen environment.
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TL;DR: This comprehensive reference collects fundamental theories and recent research from a wide range of fields including biology, biochemistry, physics, applied mathematics, and computer, materials, surface, and colloid science providing key references, tools, and analytical techniques for practical applications in industrial, agricultural, and forensic processes.