Article
Thermodynamics
Zahir Shah, M. Sheikholeslami, Ikramullah, Poom Kumam
Summary: The hydrothermal behavior of hybrid nanomaterial migration from a perforated and wavy container is analyzed, taking into account the impacts of buoyancy, Lorentz forces, and medium porosity on fluid motion. The study shows that increasing buoyancy and medium porosity enhance convective flow, while increasing Lorentz forces decreases convective flow strength and raises fluid temperature. The results also demonstrate the dependence of entropy generation on various parameters and derive analytical relations for average Nusselt and Bejan numbers.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Chuan-Chieh Liao, Wen-Ken Li
Summary: This study conducts numerical analysis on the heat transfer performance of natural convection inside a cavity filled with nanofluids of Al2O3-water under an external magnetic field. It is found that the magnetic field angles have a significant impact on the relationship between nanoparticle concentration and heat transfer. The study classifies heat transfer patterns under different magnetic field angles and analyzes the critical Hartmann number, providing a basis for predicting the critical Hartmann number under magnetic field conditions.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Article
Thermodynamics
Wen-Ken Li, Chuan-Chieh Liao
Summary: This article investigates the heat transfer attributes of Magnetohydrodynamics (MHD) with the addition of nanoparticle volume concentration (NVC). The effects of governing parameters, including Rayleigh number (Ra), Hartmann number (Ha), and magnetic directions, are studied. It reveals three different heat transfer patterns and identifies a critical trigger condition for heat transfer transition at a specific magnetic direction.
CASE STUDIES IN THERMAL ENGINEERING
(2023)
Article
Physics, Applied
Mohammed N. Ajour, Muhyaddin J. H. Rawa, Ahmad H. Milyani, Meicheng Li
Summary: In order to improve convective flow, this study primarily used techniques including curved surfaces and a strong magnetic force. The main pillars of current research are gravity forces, ferrofluid concentrations, and Kelvin force. Additionally, the use of nanopowders increases conduction features and facilitates the movement of nanofluid.
INTERNATIONAL JOURNAL OF MODERN PHYSICS B
(2023)
Article
Thermodynamics
Zhong Huang, Botong Li, Xinhui Si, Chanjuan Yao
Summary: This paper investigates the temperature distribution of power-law liquid food under the combination impacts of thermal radiation and natural convection. Results show that the cylindrical container (i.e., the noodle bowl) has the best heating effect, while the temperature fields of egg yolk and egg white are less affected by the generalized Grashof number. The technique of adjusting the generalized Grashof number and thermal radiation for controlling heat transfer behavior could be applied in food engineering applications.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Hongye Zu, Wei Dai, Yong Li, Ke Li, Jiangtao Li
Summary: The high-emissivity coating effectively reduces the equilibrium temperature of the heat sink, increases the total heat transfer coefficient, and decreases thermal resistance, showing promising potential for thermal management applications.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2021)
Article
Thermodynamics
N. Etesami, S. Tavakoli, M. R. Pishvaie
Summary: The natural convective heat transfer of Fe3O4/ethylene glycol nanofluids around a platinum wire heater was investigated numerically, with effects of various parameters and the influence of an electric field studied. Results showed that the two-phase flow model could better predict experimental data than the single-phase model, and increasing the volume fraction of nanoparticles beyond a certain point worsened heat transfer. Increasing voltage resulted in higher velocity vectors and buoyant force, enhancing the natural heat transfer coefficient of the nanofluid.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Thermodynamics
Fanghua Li, Feroz Ahmed Soomro, Junaid Imtiaz
Summary: The study investigates the free convection of hybrid nanomaterials through a permeable region, considering the effects of porosity, radiation, and different shapes of nanoparticles. Nonlinear partial differential equations and numerical modeling are used to analyze the impact of Darcy number, magnetic force, and other forces on the behavior of nanomaterials. Results show an increase in Nusselt number due to radiation, while a decrease is observed with higher Hartmann number and porosity effect.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2021)
Article
Physics, Multidisciplinary
Marceau Henot, Nicolas Plihon, Nicolas Taberlet
Summary: The formation of glacier tables depends on the size and thermal conductivity of the cap, which can either stand on an ice foot or sink into the ice block. A one-dimensional conduction model shows that the competition between geometrical amplification and heat flux reduction controls the differential ice melting process. Additionally, a dimensionless number identified by the model controls the onset of glacier tables formation.
PHYSICAL REVIEW LETTERS
(2021)
Article
Thermodynamics
Ahmet Ali Sertkaya, Sinan Sari
Summary: The study experimentally investigated the effects of axial and radial fins on a circular pipe and inclination angle in natural convection heat transfer. Results showed that all finned surfaces and inclination angles lead to better heat transfer performances compared to the unfinned heat exchanger.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2021)
Article
Thermodynamics
Wei Wang, Gang Liu, Ben-Wen Li, Zheng-Hua Rao, Huan Wang, Sheng-Ming Liao
Summary: Both experimental and numerical studies show that nanoparticle suspensions enhance heat transfer for forced convection. However, there is diverse or contradictory conclusions regarding buoyancy-induced heat transfer in nanofluids. The study found that the hydrothermal behaviors of nanofluids strongly depend on the interaction between volume fraction and nanoparticle diameter, showing potential for improving heat transfer.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Thermodynamics
Shantanu Dutta, Sukumar Pati, Laszlo Baranyi
Summary: The study shows that the average Nusselt number increases with the volume fraction of nanoparticles and decreases with the Hartmann number. In addition to the influence of fluid properties and external conditions, the geometric variation of the enclosure volume also plays a role in altering the heat transfer rate.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Seyyed Masoud Seyyedi, Mehdi Hashemi-Tilehnoee, Elena Palomo del Barrio, Abdul Sattar Dogonchi, Seyyed Mostafa Ghadami, Mohsen Sharifpur
Summary: This study numerically investigates the heat transfer of electro-hydrodynamic natural convection in an enclosure with a wavy hot wall using Al2O3-water nanofluid as the working fluid. The effects of operational parameters on the stream function and the average Nusselt number are studied, and two new parameters are defined to evaluate the contribution of the electrical field and radiation effects on the fluid flow. The results show that Nuave increases by 7.95% when f increases from 0 to 0.05 at Ra=10^5; |?(max)| and Nuave increase by 27.6% and 37.2%, respectively, when ? goes up from 0 to 0.5 at R-d=1.0; |?(max)| and Nuave decrease by 48.7% and 27.1%, respectively, with decreasing the amplitude parameter (a(n)) from 0.1 to 0.3 at Ra=10^5.
NUMERICAL HEAT TRANSFER PART A-APPLICATIONS
(2023)
Review
Thermodynamics
S. O. Giwa, M. Sharifpur, M. H. Ahmadi, J. P. Meyer
Summary: The emergence of nanofluids as high-performance thermal transport media has attracted great research attention in the field of heat transfer. This review paper focuses on the benefits of controlling the natural convection heat transfer and flow performance of nanofluids in square cavities using magnetic field sources, as well as various influencing factors and hydromagnetic behaviors of nanofluids in square-shaped enclosures through numerical and experimental methods.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Multidisciplinary
Yan Cao, Ibrahim B. Mansir, Pradeep Kumar Singh, H. Elhosiny Ali, Azher M. Abed, Adel M. El-Refaey, Ayman A. Aly, Dinh Tuyen Nguyen, Makatar Wae-hayee, Duy Cuong Tran
Summary: This study investigated the free convection of Fe3O4-water inside a porous enclosure under the influence of magnetic fields. The SIMPLE algorithm was used to solve the equations using FVM. The effects of different parameters, such as Ra-p, concentration, porosities, and magnetic numbers, on the mean Nusselt number were studied, revealing a direct relationship between the Nusselt number and these parameters. Additionally, increasing the volume fraction from 0.01 to 0.03 in high magnetic numbers resulted in a 32% enhancement in the Nusselt number.
AIN SHAMS ENGINEERING JOURNAL
(2023)
Article
Energy & Fuels
Jagar A. Ali, Araz Bayz Hamadamin, Shwan Mohammed Ahmed, Barham Sabir Mahmood, S. Mohammad Sajadi, Abbas Khaksar Manshad
Summary: In this study, nanoinhibitive drilling fluids (NIDFs) were prepared using synthesized nanocomposites. The results showed that the addition of nanocomposites improved the rheological, filtration, and inhibition properties of the drilling fluid.
Article
Energy & Fuels
Abbas Khaksar Manshad, Jagar A. Ali, Omid Mosalman Haghighi, S. Mohammad Sajadi, Alireza Keshavarz
Summary: A composite material containing zinc and silica nanoparticles and bentonite has been prepared in this study for enhanced oil recovery. Nanocomposites dispersed in water at different salinity levels showed decreased interfacial tension and contact angle with increasing concentration, leading to improved oil recovery.
Article
Energy & Fuels
Mehran Mirzavandi, Jagar A. Ali, Abbas Khaksar Manshad, Barham Majeed, Barham Sabir Mahmood, Amir H. Mohammadi, Stefan Iglauer, Alireza Keshavarz
Summary: Nanomaterials, specifically silica-graphene quantum dots (Si-GQDs), have been synthesized and dispersed in water to form nanofluids. These nanofluids exhibit significant reduction in interfacial tension and wettability alteration, leading to enhanced oil recovery from carbonate reservoirs. The experimental results show that the nanofluids formulated with 1000 ppm Si-GQDs in distilled water enable an additional 14.4% oil recovery due to the reduction in interfacial tension and contact angle.
Article
Engineering, Electrical & Electronic
Truong Khang Nguyen, Cong Danh Bui, Adam Narbudowicz, Nghia Nguyen-Trong
Summary: This letter introduces a frequency-reconfigurable antenna for cognitive radio application in the sub-6 GHz 5G band. The proposed antenna combines a wideband monopole with a narrowband microstrip patch on a single-layer substrate. PIN diodes are utilized to switch between the wideband sensing mode and the narrowband communication mode. Varactor diodes are implemented on the patch to continuously adjust the operating frequencies in the narrowband mode. The proposed antenna offers a wide bandwidth of 54.2% (3.19-5.56 GHz) for sensing and a tunable bandwidth of 44% (3.4-5.32 GHz) for communication, both exhibiting good radiation characteristics with peak measured realized gains of 6.02 and 5.37 dB, respectively.
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Abdessalam El Yassini, Saida Ibnyaich, Truong Khang Nguyen, Abdelouhab Zeroual
Summary: This paper proposes an electrical compact triple-bands antenna based on a composite left-/right-handed approach. The antenna is designed to have a lower resonant frequency and smaller physical dimensions compared to conventional antennas. It is produced on an FR4 substrate and provides three bandwidths. Additionally, a MIMO antenna is designed to achieve important isolation among ports and compatibility with wireless MIMO devices.
INTERNATIONAL JOURNAL OF COMMUNICATION SYSTEMS
(2023)
Article
Engineering, Electrical & Electronic
Shobhit K. Patel, Dhruvik Agravat, Osamah Alsalman, Jaymit Surve, Iain Crowe, Sofyan Taya, Truong Khang Nguyen
Summary: In this study, a numerical investigation was conducted on thin film combinations of Fe2O3 and CuO with multiple layers. The optimized structure showed an average absorption of 98% in the ultraviolet and visible regions and 96% in the infrared region of the solar spectrum. These materials have potential applications in optical detectors and communication, with a high absorption rate of 99.9998% at a wavelength of 1690 nm.
OPTICAL AND QUANTUM ELECTRONICS
(2023)
Article
Energy & Fuels
Saman Khosravi Magham, Jagar A. Ali, Abbas Khaksar Manshad, Pshtiwan T. Jaf, Buya S. Hisqel
Summary: In this study, the extract of the Passiflora plant was used as a natural surfactant for enhanced oil recovery. The optimal critical micelle concentration (CMC) was found to be 4 wt%, which resulted in a minimum interfacial tension (IFT) of 13 mN/m and a contact angle (CA) of 55 degrees on the surface of the carbonate rock. The surfactant solution enabled an additional 7.5% original oil in place (OOIP) to be extracted from the rock plug.
Review
Energy & Fuels
Sarkar Muheedin Hama, Abbas Khaksar Manshad, Jagar A. Ali
Summary: Injecting surfactants through cEOR has attracted significant attention in improving oil recovery by altering fluid/rock and/or fluid/fluid interaction. The reduction in interfacial tension (IFT) by adsorption of surfactants on the oil/water interface plays a crucial role in mobilizing trapped oil in porous media. However, the toxicity, high cost, and environmental issues associated with chemical surfactants have led to the search for natural alternatives. This study provides a comprehensive overview of natural surfactant types and their performance in EOR, including the impact of fabrication methods, nanoparticle addition, and salinity. It was found that natural surfactants synthesized from seed oil showed superior performance compared to those extracted from other plant parts, achieving IFT reduction of up to 98% and improving ultimate oil recovery by 2-40% of the original oil in place (OOIP).
Article
Engineering, Electrical & Electronic
Shobhit K. Patel, Jaymit Surve, Mya Mya Htay, Osamah Alsalman, Juveriya Parmar, Truong Khang Nguyen
Summary: In this article, a graphene metasurface capable of achieving 4-bit encoding is proposed, which can be applied for the detection of cyanides and has multifunctionality as a sensor or an encoder. This device shows promising potential in anti-counterfeiting, information encryption, and related fields.
IEEE SENSORS JOURNAL
(2023)
Article
Polymer Science
Neamat Jameel, Jagar A. A. Ali
Summary: In this study, the reservoir drill-in fluid (RDF) was modified and optimized to improve rheological properties and reduce filtration properties of drilling fluid for horizontal drilling in oil-bearing zones. Controlled polymer degradation proved to be useful in improving processability and cost efficiency of the drilling fluid. Results showed that the addition of a polymer temperature stabilizer (PTS-200) reduced filtration rate by 44.33% and improved rheological properties by 19.31% compared to the standard FLOPRO fluid. The cost analysis revealed that FLOPRO-based drilling fluid had a lower cost of USD 45,000 for horizontal drilling compared to USD 96,000 for NDF and USD 91,000 for SPM drilling fluids.
Article
Computer Science, Information Systems
A. Naesha Nithish, Shobhit K. K. Patel, N. Ayyanar, Jaymit Surve, S. Rajaram, S. N. Deepa, Truong Khang Nguyen, Fahad Ahmed Al-Zahrani
Summary: In this article, a rectangular hollow core Photonic Crystal Fiber (PCF) sensor is proposed for highly sensitive detection of women's reproductive hormones (progesterone and estradiol) in blood samples at the THz regime. The numerical analysis shows improved relative sensitivity and minimal loss by optimizing the sensor's structural parameters. The sensor exhibits a maximum relative sensitivity of 99.87% for 10 n mol/L (progesterone) and 99.88% for 3 n mol/L (estradiol) at 1.35 THz. It also demonstrates low effective material loss and a large effective mode area. The research highlights the importance of monitoring estradiol and progesterone levels for women's reproductive health and offers a feasible fabrication method.
Review
Energy & Fuels
Zanwer Tahr, Jagar A. Ali, Ahmed Salih Mohammed
Summary: In recent years, there has been an increased interest in the use of nano and biodegradable materials in drilling fluid. Researchers have investigated the impact of these materials and found that rice husk and pomegranate peel powders significantly improve the rheological and filtration properties of drilling fluid. Additionally, nano-clay and titanium oxide have a significant impact on the properties of drilling fluid.
GEOENERGY SCIENCE AND ENGINEERING
(2023)
Article
Energy & Fuels
Fatemeh Motraghi, Abbas Khaksar Manshad, Majid Akbari, Jagar A. Ali
Summary: Chemical methods have been widely used in oil recovery, but they face challenges in displacing and mobilizing crude oil in porous media. To improve oil recovery and reduce costs, new techniques involving nanotechnology and combined methods can be developed. This study evaluated the wettability alteration of carbonate reservoir rocks using ethanol and methyl ethyl ketone under the influence of synthesized nanocomposites. The results showed that the contact angle decreased with decreasing salinity of the base fluid, and the synthesized nanocomposites had a significant effect on wettability alteration.
Article
Multidisciplinary Sciences
Jagar A. Ali
Summary: Greenly synthesized nanocomposites play an important role in EOR applications by reducing interfacial tension, altering wettability, and improving oil recovery.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2023)
Article
Engineering, Geological
Abbas Khaksar Manshad, Farhad Jafari, Sarkar Muheedin Hama, Mohammad Tabaeh Hayavi, Jagar A. Ali, Alireza Keshavarz, Kamal Kolo
Summary: Sand production is a serious problem in oil and gas production from unconsolidated formations, caused by stress imbalance, fluid movement, reservoir pressure reduction, and rock fatigue. A geo-mechanical model was established and a sanding onset prediction model derived, successfully applied to analyze a well in a field in southwest Iran.
GEOMECHANICS AND GEOENGINEERING-AN INTERNATIONAL JOURNAL
(2022)
Article
Chemistry, Physical
Rajalaxmi Sahoo, C. Reshma, D. S. Shankar Rao, C. V. Yelamaggad, S. Krishna Prasad
Summary: This study investigates the influence of the flexible spacer parity of a guest photoactive liquid crystalline dimer on the photonic bandgap features of the cholesteric and twist grain boundary smectic C phases of the host molecule. The results show that the parity of the photoactive dimer affects the width of the photonic bandgap and the blue-shift of the cholesteric phase. Additionally, the parity of the dimer also affects the layer spacing and two-dimensional periodicity of the liquid crystalline phases.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Sara Rozas, Alberto Gutierrez, Mert Atilhan, Alfredo Bol, Santiago Aparicio
Summary: This study presents a multiscale theoretical investigation on the use of bifunctional hydrophobic Deep Eutectic Solvent for carbon capture using tetrapropylammonium chloride, acetic acid, and ethanolamine. The characterization includes nanoscale analysis of CO2 absorption mechanisms and changes in liquid phase properties during gas capture.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Tabouli Eric Da-yang, Alhadji Malloum, Jean Jules Fifen, Mama Nsangou, Jeanet Conradie
Summary: In this study, the potential energy of different glycine tautomers and their interaction with Cu2+ cations was investigated. The results showed that the solvation medium and the presence of Cu2+ cations influenced the stability of glycine tautomers.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Xiaoliang Gou, Nan Ye, Qingqing Han, Junjie Cui, Long Yi Jin
Summary: In this study, amphiphilic rod-coil molecules with rigid DSA parts and flexible oligoether chains were designed and their assembly capacities were investigated. The morphology of the molecular aggregates was influenced by the pH of the solution and UV light, and the aggregates showed adsorption capacity for nitroaromatic compounds.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Shuang Liu, Liyan Shan, Cong Qi, Wenhui Zhang, Guannan Li, Bei Wang, Wei Wei
Summary: Optimizing the design of styrene-butadiene-styrene copolymer (SBS) is crucial for producing cost-effective SBS modifiers and improving road quality. This study examined the influence of SBS content and molecular structure on viscosity and compatibility. The results showed that the viscosity contribution of SBS is determined by its molecular structure and phase morphology.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Artem A. Petrov, Ekaterina A. Titova, Aydar A. Akhmadiyarov, Ilnaz T. Rakipov, Boris N. Solomonov
Summary: This work focuses on the thermochemistry of solvation of azeotropes. The enthalpies of dissolution of azeotropes in different mediums were determined, and the impact of the structure of the azeotropes on their properties in solution was discussed. A correlation between enthalpies of solvation and molar refraction was used to determine the vaporization enthalpies of azeotropes for the first time. The results were found to be consistent with literature data, obtained using direct and calculated methods. These findings contribute to the analysis of the structure-property relationships of azeotropes.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
L. V. Kamaeva, E. N. Tsiok, N. M. Chtchelkatchev
Summary: Understanding the correlations between liquids and solids allows us to predict the thermodynamic parameter range favorable for the formation of intriguing solid phases by studying liquids. In this study, we experimentally and theoretically investigated an Al-Cu-Co system within different composition ranges, and identified high-temperature solid phases. Our findings demonstrated the correlation between the boundaries of different solid phases and undercooling and viscosity in the concentration area.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
R. Aneesh Kumar, S. Jamelah Al-Otaibi, Y. Sheena Mary, Y. Shyma Mary, Nivedita Acharjee, Renjith Thomas, Renjith Raveendran Pillai, T. L. Leena
Summary: In this study, the interactions between doped and pristine coronenes and adenine nucleobases were investigated using Density Functional Theory. The optimal configurations, adsorption energies, charge transfer, and electrical properties of each complex were calculated. It was found that doped coronene had stronger adsorption strength and charge transfer compared to pristine coronene. The stability of the complexes was attributed to non-covalent interactions in the interactive region. The change in electrical conductivity of coronenes after adsorption suggested their sensitivity towards DNA bases. The predicted energy gap and prolonged recovery time for adenine-coronene configurations indicated the potential application of pristine/doped coronene in DNA detection.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Gang Zhou, Yongwei Liu, Biao Sun, Zengxin Liu, Cuicui Xu, Rulin Liu, Qi Zhang, Yongmei Wang
Summary: The CFD-DEM method was used to simulate the dust deposition pattern in the bronchus of anchor digging drivers, revealing the highest dust concentration in the vortex region of the working face. The study also found a positive correlation between dust particle diameter and bronchial deposition rate, and a negative correlation with alveolar deposition rate.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Yan Zhang, Yafei Luo, Lingkai Tang, Mingyan E, Jianping Hu
Summary: This study investigates the effects of different transition metal decorations on B12N12 nanocages on the adsorption properties of nitrosourea drugs using computational methods. The results reveal the presence of weak non-covalent interactions between metals and nanocages, and the interaction between drugs and nanocages plays a significant role in drug adsorption. Compared to free drugs, the adsorption of drugs on nanocages can facilitate electron transfer, reduce energy gaps and chemical hardness, indicating activity at the target site.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
C. I. Alcolado, J. Poblete, L. Garcia-Rio, E. Jimenez, F. J. Poblete
Summary: In this study, the selective oxidation of aromatic aldehydes was investigated using Ru(VI) as a catalyst and hexacyanoferrate (III) as a cooxidant in an alkaline medium. The reaction mechanism involves complex reaction orders for the oxidant and the aromatic aldehyde, while the reaction order for Ru(VI) is one. The proposed mechanism includes two catalytic cycles and the formation and decomposition of complexes. Quantitative structure-activity relationship analysis showed that deactivating groups in the para-position enhance the process.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Inez A. Barbieri, Marcos L. S. Oliveira, Franciele S. Bruckmann, Theodoro R. Salles, Leonardo Zancanaro, Luis F. O. Silva, Guilherme L. Dotto, Eder C. Lima, Mu. Naushad, Cristiano R. Bohn Rhoden
Summary: This study evaluated the adsorption of zolpidem on magnetic graphene oxide and synthesized magnetic graphene oxide adsorbents for zolpidem removal. The best magnetic nanoadsorbent was found to have a removal percentage of 87.07% at specific pH and temperature conditions. The results suggest that the removal of zolpidem is related to the surface chemistry of the adsorbent rather than the surface area of graphene oxide. The adsorbent showed excellent adsorption efficiency and magnetic behavior, making it a promising material for removing zolpidem from aqueous solutions.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Hongyan Huang, Chunquan Li, Siyuan Huang, Yuling Shang
Summary: This study examines the sensitivity of the thermal conductivity of water-based alumina nanofluids to changes in concentration, sphericity, and temperature. The results show that volume fraction and temperature have a significant impact on the thermal conductivity, while sphericity also needs to be considered. A support vector machine regression model was created to analyze the sensitivity of the thermal conductivity to different parameters. The findings indicate that temperature, sphericity, and volume fraction are the most sensitive variables.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Correction
Chemistry, Physical
V. M. Pergamenshchik, T. Bryk, A. Trokhymchuk
JOURNAL OF MOLECULAR LIQUIDS
(2024)
Article
Chemistry, Physical
Valentyn Rudenko, Anatolii Tolochko, Svitlana Bugaychuk, Dmytro Zhulai, Gertruda Klimusheva, Galina Yaremchuk, Tatyana Mirnaya, Yuriy Garbovskiy
Summary: This paper reports on the synthesis, structural characterization, spectral and nonlinear-optical properties of glass nanocomposites made of glass forming ionic liquid crystals and nanoparticles. The study reveals that by exciting the nanocomposites within their absorption band, a control over effective optical nonlinearities can be achieved, allowing the modification of the magnitude and sign of the effective nonlinear absorption coefficient. The proposed strategy using metal-alkanoates based glass-forming ionic liquid crystals and nanoparticles shows great potential for the development of nanophotonics and plasmonics technologies.
JOURNAL OF MOLECULAR LIQUIDS
(2024)
