@utb.edu.bn
PRINCIPAL LECTURER
Universiti Teknologi Brunei
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Maziyar Sabet
Springer Science and Business Media LLC
Surajudeen Sikiru, Hassan Soleimani, Nejat Rahmanian, Amir Rostami, Leila Khodapanah, Mohammad Yeganeh Ghotbi, Mohammed Falalu Hamza, Hojjatollah Soleimani, Nasrin Khodapanah, Maziyar Sabet,et al.
Springer Science and Business Media LLC
Maziyar Sabet
Springer Science and Business Media LLC
Maziyar Sabet
Springer Science and Business Media LLC
Maziyar Sabet
Lifescience Global
This study presents a comprehensive exploration of atmospheric pressure plasma jets (APPJs) as an innovative method for synthesizing and modifying nanomaterials, offering a versatile and efficient approach to tailoring their properties and functionalities. Unlike traditional low-pressure plasma techniques, APPJs operate at ambient conditions, providing significant advantages in scalability, cost-effectiveness, and environmental sustainability. This review delves into the recent advancements in APPJ technology, including the development of microfluidic configurations that enhance plasma generation and control, leading to improved efficiency, power, and user accessibility. These advancements have opened new possibilities in various fields, such as the development of antimicrobial coatings, advanced drug delivery systems, and high-performance solar cells. The ability of APPJs to facilitate precise surface engineering and targeted material deposition positions them as a transformative technology in nanomaterial processing. Despite their potential, challenges such as scalability and environmental impact must be addressed to realize widespread adoption. This study underscores the promise of APPJs in driving future industrial applications and highlights the need for continued innovation to overcome current limitations and unlock their full potential across multiple sectors.
Yasin Noruzi, Mohammad Sharifi, Jalal Fahimpour, Maziyar Sabet, Mohammad Akbari, and Seyednooroldin Hosseini
Elsevier BV
Maziyar Sabet
Springer Science and Business Media LLC
Maziyar Sabet
Informa UK Limited
Maziyar Sabet
Springer Science and Business Media LLC
Maziyar Sabet
Informa UK Limited
Maziyar Sabet
Informa UK Limited
Maziyar Sabet
SAGE Publications
The mechanical and thermal properties of polycarbonate (PC) mixed with graphene oxide (GO) were investigated on an experimental basis in this study. PC composites with GO concentrations of 0.1, 0.2, 0.5, and 0.75 wt% were produced using a compression molding technique. The results showed that 10%, 26%, 55%, and 98% increased tensile strength, respectively, in comparison to PC. The thermo-mechanical test showed the tan δ value of the sample with 0.2 wt% GO reached 149.9°C, indicating a shift of 4.8° in the high-temperature region when compared to pure PC. Other mechanical tests, such as impact strength, elongation at break, and young modulus displayed the ultimate improvement for PC composites with 0.2 wt% GO content, showing that interactions with the PC and enhancements in mechanical and thermal characteristics are owing to oxygen functional groups in pure GO, mainly carboxyl portions. Therefore, the current study offers an exceptional structural characteristic, which makes the PC composite polymer qualified for high-performance composite.
Maziyar Sabet and Erfan Mohammadian
Springer Science and Business Media LLC
In electrical devices, mechanical characteristics are greatly required. In this study, graphene nanoplatelets were used to provide meaningfully enhanced electrical conductivity, dielectric constant, and mechanical properties in a polycarbonate (PC) matrix (GNP). This research supports a practical, cost-effective method for manufacturing dielectric, thermally stable polymer composites with superior mechanical properties. A thermogravimetric study was conducted on PC and PC/GNP composites in nitrogen and air atmospheres. In the presence of nitrogen, polycarbonate decomposed in a one-step manner, but in the presence of air, three-step deterioration was observed. Furthermore, pure graphene nanoplatelets degraded in three steps in air, associated with a moderate deterioration in N2, as received. The inclusion of platelet-like graphene aided to produce a physical hindrance outcome, postponing the release of volatile chemicals created throughout breakdown, which enhanced the thermal strength of the composites. Polycarbonate/graphene nanocomposites' dielectric and electromagnetic interference (EMI) shielding characteristics were studied like a variable of composite shape and graphene particle size. The EMI shielding efficacy of polycarbonate content with 0.5wt% graphene was shown to be dependent on the composite shape and graphene content. Furthermore, the relative permittivity was seen to be increasing. The findings show that graphene-loaded polymers improve the functionality of electrical appliances, indicating that these materials could be used in electronic applications. The research demonstrates that adding GNP to a material may improve several characteristics while also making it lightweight and appropriate for a variety of applications.
Maziyar Sabet and Hassan Soleimani
AIP Publishing
Nur Aqidah Binti Haji Donglah, Nornasuha Binti Mahmud Adenan, and Maziyar Sabet
AIP Publishing
Nornasuha Binti Mahmud Adenan, Nur Aqidah Binti Haji Donglah, and Maziyar Sabet
AIP Publishing
Hojjatollah Soleimani, Surajudden Sikiru, Hassan Soleimani, Leila Khodapanah, and Maziyar Sabet
Trans Tech Publications, Ltd.
The oil and gas sector faces challenges in optimizing oil recovery from reservoirs due to trapped oil due to interfacial tension and surface forces. Characterizing anisotropic dielectric properties is crucial. The petroleum business is quickly changing, and a massive advancement in the application of nanotechnology in this field is envisaged. Because magnetic nanoparticles (MNP) are solid, tiny, and adsorb at the oil-water interface, they might be helpful. The interaction of MNP with electromagnetic waves appears to be capable of altering interfacial tension, which will boost oil recovery. The interaction of an oscillating B-field of electromagnetic waves with magnetic domains causes energy dissipation due to a shift in magnetic anisotropy from the easy axis of magnetization. The use of anisotropy energy in mobilizing oil in a porous media has recently been investigated. BaTiO3 nanoparticles (NPs) were synthesized for this purpose, and their influence on oil mobility under electromagnetic waves (EM) was studied. The anisotropy energy was computed and determined to be 7.34kJ/mol. Under EM, the easy axis magnetization of BaTiO3 nanoparticles oscillates and changes direction continually, facilitating oil mobilization in the porous media. The EM findings for reducing interfacial tension (IFT) between oil and water ranged from 4.5mN/m to 0.89mN/m. Under EM, it was discovered that BaTiO3 nanoparticles might lower IFT by roughly 60%. The IFT must be small enough to allow oil flow during mobilization. The simulation findings demonstrate that the adsorption energy of n-hexane on the surface of hematite has a 47.9% lower energy value than water. With a 115.4% percentage difference, the stress autocorrelation function of n-hexane with hematite is greater than that of water.
Maziyar Sabet and Hassan Soleimani
Trans Tech Publications, Ltd.
This research paper investigates the effect of the addition of carbon nanotubes (0.5 and 1.0% by weight) on crystallisation procedure in isotactic polypropylene. The study found that the crystallisation temperature increased with increasing nanotube content, while the crystallisation of polymers did not substantially change. The critical cooling speed, at which PP does not crystalize, increases with the increase in carbon nanotube content. Using the critical cooling speed and nanotube content, a nucleation effectiveness parameter was developed, that is not dependent on the crystallisation temperature or the CNT load. The study also found that carbon nanotubes only speed up the development of α-phase in isothermal crystallisation experiments. The control fibers had a shrinkage of 27% to 160°C, while the shrinkage of the composite fibers was less than 5%. The melting temperature of PP and its nanocomposites was approximately 150 to 152°C. However, the values for the degree of crystallinity of the nanocomposites rose along with the CNT content.
Maziyar Sabet and Hassan Soleimani
Pleiades Publishing Ltd
Maziyar Sabet and Hassan Soleimani
Pleiades Publishing Ltd
Erfan Mohammadian, Mahdi Kheirollahi, Bo Liu, Mehdi Ostadhassan, and Maziyar Sabet
Springer Science and Business Media LLC
AbstractPetrophysical rock typing (PRT) and permeability prediction are of great significance for various disciplines of oil and gas industry. This study offers a novel, explainable data-driven approach to enhance the accuracy of petrophysical rock typing via a combination of supervised and unsupervised machine learning methods. 128 core data, including porosity, permeability, connate water saturation (Swc), and radius of pore throats at 35% mercury injection (R35) were obtained from a heterogeneous carbonate reservoir in Iran and used to train a supervised machine learning algorithm called Extreme Gradient Boosting (XGB). The algorithm output was a modified formation zone index (FZIM*), which was used to accurately estimate permeability (R2 = 0.97) and R35 (R2 = 0.95). Moreover, FZIM* was combined with an unsupervised machine learning algorithm (K-means clustering) to find the optimum number of PRTs. 4 petrophysical rock types (PRTs) were identified via this method, and the range of their properties was discussed. Lastly, shapely values and parameter importance analysis were conducted to explain the correlation between each input parameter and the output and the contribution of each parameter on the value of FZIM*. Permeability and R35 were found to be most influential parameters, where Swc had the lowest impact on FZIM*.
Maziyar Sabet and Hassan Soleimani
SAGE Publications
Polyamide 6 (PA6) nanocomposites with high electrical and thermal conductive were formulated via melt processing of PA6 and different inclusion of reduced graphene oxide (RGO). These nanocomposites showed small percolation thresholds, and the optimum formation of conductive links occurred with 0.5 wt% and ̴3.0 wt% of RGO respectively. RGO is effective in terms of thermal stability, causing a char of 6.8% with only 2.0 wt% RGO content. The presence of 3.0 wt% RGO enhanced thermal conductivity by 62% and reduces the peak-heat release rate to 588 and 545 kW/m2 with RGO inclusions of 1.0 and 2.0 wt%, respectively. Crystallization examination confirmed that RGO enabled the crystallization of PA6 structure mostly through speeding up the formation of crystal nuclei, reaching a maximum and smallest crystal grain extent with RGO inclusion up to 2.0 wt% that improved the generation of the most unflawed crystalline matrix. With the dynamic rheological testing, frequency-independence of G′ and abruptly decreased phase angle at the small-frequency area via RGO content of 2.0 wt% signify an alteration from liquid-state to solid-state rheological performance and validate the development of percolation link structure with RGO in the function of a crosslinking factor. Enhancement of fire-retardant characteristics of PA6 was attained due to the inclusion of RGO owing to the improvement in the PA6 structure. Morphological research showed that RGO was spread uniformly in the PA6 structure. These tests show substantial capacity for the bulk manufacture of electrically conductive polymer/RGO nanocomposites.
Maziyar Sabet and Hassan Soleimani
Springer Science and Business Media LLC
Polyethersulphone (PES) is a prominent engineering plastic and its characteristics must be increased because of its promise functions in the aviation, vehicle industries and even sports fields. In this study, PES, and PES/graphene oxide (GO) composites are organized using extrusion blending methods. In this study, GO loading is suggested to increase PES composites’ mechanical characteristics, dimensional strength and cryogenic engineering applications. The dynamic mechanical analysis displays that the loss and storage modulus of composites successfully increase with the GO inclusion, suggesting that the GO loading causes a powerful interfacial contact among the PES structure. The optimum GO loading for developing overall composite mechanical efficiency is 0.5 wt%. It has been shown that GO inclusion improves the cryogenic mechanical characteristics. Besides, the cryogenic mechanical characteristics of PES and its composites at –70°C have been seen to be much superior to those at room temperature. The impact of GO loadings on the morphology and efficiency of the composites was studied by scanning electron microscopy, X-ray diffraction, Fourier-transform infrared spectroscopy and atomic force microscopy.
Hojjatollah Soleimani, Surajudeen Sikiru, Hassan Soleimani, Leila Khodapanah, and Maziyar Sabet
Trans Tech Publications, Ltd.
The improved oil recovery (IOR) is a way of enhancing the reservoir properties with the use of nanomaterials to detach the oil molecule from the trapped zone. The polarization effect on reservoir sandstone under an electric double layer is one of the major research interests. The nanoparticles agglomeration such as graphene nanofluid due to poor dispersion in reservoir zone can be a major challenge that can lead to low reservoir permeability are well elucidated. This study investigated the influence of graphene nanofluid on the ionic polarization under an electric double layer in reservoir sandstone. Saturated Berea sandstone was used to investigate the interaction of ionic species on reservoir sandstone with the aid of Field-emission microscopy (FESEM), Energy dispersive X-ray mapping (EDX), Fourier Transform Infrared Spectroscopy (FTIR), Raman spectral analysis, and Core flooding experiment. This research gives information on the adsorption of ions within an electric double layer and its polarization mechanisms. It was revealed from the experimental result that ionic polarization occurs at 9.97 GHz with a 5.8nm wavelength shift which improves the mobility of the reservoir and in turn increases oil recovery factors. Graphene nanoparticles show a positive effect on both reservoir oil viscosity and stabilization characteristics of drilling fluids, wettability alteration, interfacial tension, and improving the emulsion Keywords: Nanomaterials, Sandstone, Electric double layer, Graphene