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Evaluation of the interfacial activity of imidazolium-based ionic liquids and their application in enhanced oil recovery process
, Article Journal of Molecular Liquids ; Volume 362 , 2022 ; 01677322 (ISSN) ; Salehi, M. B ; Mokhtarani, B ; Sharifi, A ; Mirzaei, M ; Taghikhani, V ; Sharif University of Technology
Elsevier B.V
2022
Abstract
Ionic liquids (ILs) are a growing trend in Enhanced Oil Recovery (EOR) studies as alternatives to commercial surfactants due to their environmentally friendly nature, and their resistance in harsh temperatures and salinities. ILs are customizable and come in an immense variety, and therefore, it is vital that different combinations of cation/anion be investigated for use in the industry. In this work, experiments are designed and performed to evaluate novel ILs’ surface activity and performance in a lab-scale EOR set-up, compatible with Iranian oil reservoir conditions. Three imidazolium-based ionic liquids were used, namely, butyl-methylimidazolium nitrate, hexyl-methylimidazolium nitrate,...
A machine learning framework for predicting entrapment efficiency in niosomal particles
, Article International Journal of Pharmaceutics ; Volume 627 , 2022 ; 03785173 (ISSN) ; Aftab, A ; Ghaemmaghami, S ; Sharif University of Technology
Elsevier B.V
2022
Abstract
Niosomes are vesicles formed mostly by nonionic surfactant and cholesterol incorporation as an excipient. The drug entrapment efficiency of niosomal vesicles is particularly important and depends on many parameters. Changing the effective parameters to have maximum entrapment efficiency in the laboratory is time-consuming and costly. In this study, a machine learning framework was proposed to address these problems. In order to find the most critical parameter affecting the entrapment efficiency and its optimal value in a specific experiment, data were first extracted from articles of the last decade using keywords of niosome and thin-film hydration method. Then, deep neural network (DNN),...
Niosomal formulation for antibacterial applications
, Article Journal of Drug Targeting ; Volume 30, Issue 5 , 2022 , Pages 476-493 ; 1061186X (ISSN) ; Gharehchelou, B ; Haghighi Poodeh, S ; Jamshidifar, E ; Karimifard, S ; Farasati Far, B ; Akbarzadeh, I ; Seifalian, A ; Sharif University of Technology
Taylor and Francis Ltd
2022
Abstract
Infection is a disease that is mainly caused by different Gram-negative and Gram-positive bacteria. Treatment of infections requires a considerable amount of antibiotics, which can cause serious damage to the patient's body. Delivering the antibiotic only to the site of infection can prevent these destructive effects, such as the destruction of the normal intestinal flora. The drug delivery system through carriers will take antibiotics into a part of the body involved in the disease. Niosome nanoparticles, which have been made from non-ionic surfactants, have been emerging as ideal drug/antibiotics delivery vehicles. Recently, niosome formulations have been targeted to reduce toxicity and...
Dissolution and remobilization of NAPL in surfactant-enhanced aquifer remediation from microscopic scale simulations
, Article Chemosphere ; Volume 289 , 2022 ; 00456535 (ISSN) ; Aminnaji, M ; Rezanezhad, F ; Ghazanfari, M. H ; Babaei, M ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
In this paper, the dissolution and mobilization of non-aqueous phase liquid (NAPL) blobs in the Surfactant-Enhanced Aquifer Remediation (SEAR) process were upscaled using dynamic pore network modeling (PNM) of three-dimensional and unstructured networks. We considered corner flow and micro-flow mechanisms including snap-off and piston-like movement for two-phase flow. Moreover, NAPL entrapment and remobilization were evaluated using force analysis to develop the capillary desaturation curve (CDC) and predict the onset of remobilization. The corner diffusion mechanism was also applied in the modeling of interphase mass transfer to represent NAPL dissolution as the dominant mass transfer...
Interplay between morphology and band gap energy in Fe-MIL-88A prepared via a high temperature surfactant-assisted solvothermal method
, Article Materials Chemistry and Physics ; Volume 277 , 2022 ; 02540584 (ISSN) ; Zebarjad, S. M ; Madaah Hosseini, H. R ; Khodaei, A ; Sharif University of Technology
Elsevier Ltd
2022
Abstract
Metal-Organic Frameworks (MOFs) are a new class of crystalline microporous solids with superior properties compared to their inorganic counterparts that offer a great variety of properties. Fe-MIL-88A is a biocompatible MOF with a flexible structure that can be synthesized in various morphologies via different chemical methods. The present study proposes two efficient methods, namely, microemulsion and surfactant-assisted solvothermal method, to prepare Fe-MIL-88A nanorods with narrow size distribution and well-defined morphology. The morphology, crystalline and chemical structure of the prepared samples were studied using FESEM images, XRD patterns and FTIR spectra, respectively, and their...
A laboratory approach to enhance oil recovery factor in a low permeable reservoir by active carbonated water injection
, Article Energy Reports ; Volume 7 , 2021 , Pages 3149-3155 ; 23524847 (ISSN) ; Paprouschi, A ; Elveny, M ; Podoprigora, D ; Korobov, G ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
In this paper, different injectivity scenarios were experimentally investigated in a coreflooding system to observe the efficiency of each method in laboratory conditions. Surfactant flooding, CO2 injection, carbonated water injection (CWI), active carbonated water injection (ACWI), after water flooding were investigated through the coreflooding system. First, it is necessary to optimize the surfactant concentration and then use it in ACWI injection. To do this, linear alkylbenzene sulfonic acid (LABSA) was used as a cationic surfactant at different concentrations. It was observed that 0.6 PV concentration of LABSA had an optimum result as increasing the surfactant concentration would not be...
Influences of polymer-surfactant interaction on the drop formation process: an experimental study
, Article Langmuir ; Volume 37, Issue 3 , 2021 , Pages 1025-1036 ; 07437463 (ISSN) ; Salehi, M. S ; Firoozabadi, B ; Afshin, H ; Sharif University of Technology
American Chemical Society
2021
Abstract
The interaction between polymer and surfactant molecules affects the physical properties of liquids, which could be of great importance in an abundance of processes related to drop formation. Polymer and surfactant concentration is a factor that dramatically impacts the shape of molecular networks formed in the fluid bulk and the characteristics of a forming drop. In this study, the deformation and detachment of aqueous carboxymethyl cellulose (CMC) solutions' drops containing different concentrations of sodium dodecyl sulfate (SDS) are studied experimentally. Our purpose is to determine the effects of CMC and SDS concentrations on the parameters related to the formation process, including...
Influence of surface-modified nanoparticles on the hydrodynamics of rising bubbles
, Article Chemical Engineering and Technology ; Volume 44, Issue 3 , 2021 , Pages 513-520 ; 09307516 (ISSN) ; Bastani, D ; Lotfi, M ; Miller, R ; Sharif University of Technology
Wiley-VCH Verlag
2021
Abstract
Local velocities of bubbles rising in four different nanosilica solutions were investigated experimentally. Also, the density, viscosity, and surface tension of fumed nanosilica and modified nanosilica solutions were measured. Heat treatment and chemical functionalization were used to modify the properties of silica nanoparticles. It was found that the addition of nanosilica affected the hydrodynamics of the rising bubble by increasing the drag friction at the interface. However, environmentally responsive nanosilica particles behaved like surfactant molecules, due to the interfacial activity of hydrophilic and hydrophobic chains. Silica nanoparticles coated with both hydrophilic and...
The effect of polymeric surfactant content on the mechanical properties of Al/GNP nanocomposites
, Article Materials Chemistry and Physics ; Volume 257 , 2021 ; 02540584 (ISSN) ; Abouchenari, A ; Pudine, M ; Sharifianjazi, F ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Graphene nanoplatelets (GNPs) are ideal reinforcements for improving the mechanical properties of aluminum-based matrices due to their outstanding properties. However, it essentially depends on their uniform dispersion in the matrix. In this study, the challenge of uniform dispersion of graphene was performed by functionalizing the non-covalent surface and sonication of GNPs applying non-ionic polymeric ethyl cellulose (EC) surfactant, in which a colloidal mixture was provided with Al powder and graphene, followed by sintering at 620 °C and consolidation. The density and mechanical properties of nanocomposite specimens were investigated and compared with a non-surfactant-assisted Al/GNP...
Simulation of two-phase flow by injecting water and surfactant into porous media containing oil and investigation of trapped oil areas
, Article Journal of Petroleum Exploration and Production ; Volume 11, Issue 3 , 2021 , Pages 1353-1362 ; 21900558 (ISSN) ; Jamshidi, S ; Kamalipoor, M ; Sharif University of Technology
Springer Science and Business Media B.V
2021
Abstract
Nowadays, as the oil reservoirs reaching their half-life, using enhanced oil recovery methods is more necessary and more common. Simulations are the synthetic process of real systems. In this study, simulation of water and surfactant injection into a porous media containing oil (two-phase) was performed using the computational fluid dynamics method on the image of a real micro-model. Also, the selected anionic surfactant is sodium dodecyl sulfate, which is more effective in sand reservoirs. The effect of using surfactant depends on its concentration. This dependence on concentration in using injection compounds is referred to as critical micelle concentration (CMC). In this study, an...
Mechanism of surfactant in trichloroethene degradation in aqueous solution by sodium persulfate activated with chelated-Fe(II)
, Article Journal of Hazardous Materials ; Volume 407 , 2021 ; 03043894 (ISSN) ; Li, M ; Gu, X ; Danish, M ; Shan, A ; Ali, M ; Qiu, Z ; Sui, Q ; Lyu, S ; Sharif University of Technology
Elsevier B.V
2021
Abstract
The mechanism of surfactants in surfactant-in situ chemical oxidation (S-ISCO) coupled process for trichloroethene (TCE) degradation was firstly reported. The performance of TCE solubilization and inhibition of TCE degradation in three nonionic surfactants (TW-80, Brij-35, TX-100) in PS/Fe(II)/citric acid (CA) system was compared and TW-80 was evaluated to be the optimal surfactant in S-ISCO coupled process due to the best TCE solubilizing ability and minimal inhibition for TCE degradation (only 31.8% TCE inhibition in the presence of 1 g L−1 TW-80 surfactant). The inhibition mechanism in TCE degradation was also demonstrated by comparing the strength of ROSs and PS utilization. In the...
The identification and performance assessment of dominant bacterial species during linear alkylbenzene sulfonate (LAS)-biodegradation in a bioelectrochemical system
, Article Bioprocess and Biosystems Engineering ; Volume 44, Issue 12 , 2021 , Pages 2579-2590 ; 16157591 (ISSN) ; Vahabzadeh, F ; Mardanpour, M. M ; Sharif University of Technology
Springer Science and Business Media Deutschland GmbH
2021
Abstract
The anionic surfactant linear alkylbenzene sulfonate (LAS) is a major chemical constituent of detergent formulation. Regarding the recalcitrant nature of sulfonoaromatic compounds, discharging these substances into wastewater collection systems is a real environmental issue. A study on LAS biodegradation based on bioelectrochemical treatment and in the form of developing a single-chamber microbial fuel cell with air cathode is reported in the present work. Pretreatment study showed LAS concentration of 60 ppm resulted in the highest anaerobic LAS removal of 57%; so, this concentration was chosen to run the MFC. After the sustained anodic biofilm was formed, LAS degradation rate during 4 days...
Quantitative determination of linear alkylbenzene sulfonate (LAS) concentration and simultaneous power generation in a microbial fuel cell-based biosensor
, Article Journal of Cleaner Production ; Volume 294 , 2021 ; 09596526 (ISSN) ; Vahabzadeh, F ; Mardanpour, M. M ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
Linear alkylbenzene sulfonate (LAS), one of the most widely used synthetic surfactants in laundry detergent industry, is considered a hazardous contaminant in wastewater. In the present study, a microbial fuel cell (MFC) based biosensor is developed to quantitively determine the LAS concentration in wastewater. To do so, the developed MFC is fed with LAS concentration of 60 mg l−1. Finally, a sustained biofilm is formed after almost 34 days and the highest open circuit potential of 425 mV is recorded. The maximum power and current densities of 75 mW m−3 and 663 mA m−3 are obtained, respectively; and the internal resistance of the MFC-based biosensor is calculated to be about 1 kΩ. After 98...
Experimental investigation of the effects of surfactant on the dynamics of formation process of liquid drops
, Article Journal of Industrial and Engineering Chemistry ; Volume 89 , 2020 , Pages 183-193 ; Salehi, M. S ; Firoozabadi, B ; Afshin, H ; Sharif University of Technology
Korean Society of Industrial Engineering Chemistry
2020
Abstract
In the present study, the formation of surfactant-laden viscous drops in ambient air is experimentally investigated using a high-speed digital camera. The mixtures of 90%, 92.5%, and 95% glycerol by weight in water containing various concentrations of sodium dodecyl sulfate are chosen as the drop phase fluid. The focus of this work is to investigate the effects of concentration of surfactant dissolved in solutions with different viscosities, on physical and geometrical parameters related to drop formation process, such as the drop elongation, minimum neck thickness, formation time, and the drop volume. The formation of satellite drops and the influence of surfactant concentration on their...
Supramolecular self-assembly of oleylamide into organogels and hydrogels: a simple approach in phase selective gelation of oil spills
, Article Soft Materials ; Volume 18, Issue 1 , 2020 , Pages 55-66 ; Bagheri, A ; Younesi Araghi, H ; Akbari, A ; F. Paige, M ; Sharif University of Technology
Taylor and Francis Inc
2020
Abstract
A new gelator based of oleylamide has been introduced, which was gelled nonpolar hydrocarbon and CCl4 solvents through self-assembly. Also, the gelator formed a two-component hydrogel in combination with SDS, an anionic surfactant. UV-Vis studies revealed that the H-type and J-type aggregation of organogels in hexane and hydrogel in water, respectively. The xerogel, obtained by evaporating the solvent of organogel, selectively gelled and adsorbed oil spills on water surfaces. The effect of the various parameters, including temperature, water acidity and pH on the oil spill adsorption was studied, revealing the high ability of the xerogel to removing the oil contamination from water in up to...
A note on the synergistic effect of surfactants and nanoparticles on rising bubble hydrodynamics
, Article Chemical Engineering and Processing - Process Intensification ; Volume 155 , 2020 ; Bastani, D ; Lotfi, M ; Sharif University of Technology
Elsevier B.V
2020
Abstract
Various mixtures of surfactants and nanosilica particles were investigated to assess their influence on rising bubble hydrodynamics. For this purpose, local velocities of rising bubbles were measured experimentally. Also, the effects of concentration of three types of surface-modified silica nanoparticles on density, viscosity, and surface tension of surfactant solutions were determined. Experimental results revealed that the simultaneous presence of nanoparticles and surfactant molecules led to the decrease of local velocities of rising bubbles. The presence of nanoparticles in surfactant solutions leads to a more reduction of bubble local velocity. This could be caused by the formation of...
Investigation and visualization of surfactant effect on flow pattern and performance of pulsating heat pipe
, Article Journal of Thermal Analysis and Calorimetry ; Volume 139, Issue 3 , 2020 , Pages 2099-2107 ; Kalan, K ; Vandadi, M ; Shafii, M. B ; Saidi, M. H ; Sharif University of Technology
Springer Netherlands
2020
Abstract
Pulsating heat pipes (PHPs) are one of the new devices used for cooling in several applications such as electronic and aerospace systems. Their low cost, effectiveness at various conditions, being equipped for passive energy conversion, and well distribution of temperature compared to conventional heat pipes are among the reasons of their popularity. To investigate the effect of surface tension of the working fluid on the behavior of PHPs, a copper heat pipe is fabricated with inner and outer diameters of 2 mm and 4 mm, respectively. Five different concentrations of cetrimonium bromide (C-Tab) surfactant are dissolved in water and are tested with a filling ratio of 50% (± 1%). A piece of...
Effect of salts and their interaction with ingenious surfactants on the interfacial tension of crude oil/ionic solution
, Article Chinese Journal of Chemical Engineering ; Volume 28, Issue 1 , January , 2020 , Pages 224-235 ; Parvizi, R ; Ayatollahi, S ; Ghaseminejad Raeeni, E ; Sharif University of Technology
Chemical Industry Press
2020
Abstract
Understanding the roles of asphaltene and resin as natural surfactants existed in crude oil can enlighten contradicting reported results regarding interfacial tension (IFT) of crude oil/aqueous solution as a function of salinity and ion type. In this way, this study is aimed to investigate the effect of these natural surface active agents on IFT of with special focus on SO42− anion and Mg2+ cation. Two different synthetic oil solutions of 8 wt% of the extracted asphaltene and resin dissolved in toluene are prepared, and then IFT values are measured. After that, the obtained results are compared with the IFT of intact crude oil in contact with the same saline solutions examined in the...
Remediation of trapped DNAPL enhanced by SDS surfactant and silica nanoparticles in heterogeneous porous media: experimental data and empirical models
, Article Environmental Science and Pollution Research ; Volume 27, Issue 3 , 2020 , Pages 2658-2669 ; Khasi, S ; Fatemi, M ; Ghazanfari, M. H ; Sharif University of Technology
Springer
2020
Abstract
The remediation of nonaqueous phase liquids (NAPLs) enhanced by surfactant and nanoparticles (NP) has been investigated in numerous studies. However, the role of NP-assisted surfactants in the dissolution process is still not well discussed. Besides, there is a lack of empirical dissolution models considering the effects of initial residual saturation Strap, NAPL distribution, and surfactant concentration in NAPL-aqueous phase systems. In this work, micromodel experiments are conducted to quantify mass transfer coefficients for different injected aqueous phases including deionized water, SDS surfactant solutions, and NP-assisted solutions with different levels of concentrations and flow...
Static and dynamic behavior of foam stabilized by modified nanoparticles: Theoretical and experimental aspects
, Article Chemical Engineering Research and Design ; Volume 158 , 2020 , Pages 114-128 ; Ashoori, S ; Ghotbi, C ; Moghadasi, J ; Kharrat, R ; Sharif University of Technology
Institution of Chemical Engineers
2020
Abstract
Gas flooding is a practical secondary scenario for enhanced oil recovery. Channeling and fingering of the injected gas are the major problems facing this technique. These challenges can be mitigated by the injection of gas as foam. However, foam stability influences the overall efficiency of the process, which could be improved by nanoparticles (NPs). This work provides a theoretical and experimental analysis of the NPs wettability effects on foam behavior, in both static and dynamic states. The treated calcite (CaCO3) NPs along with a cationic surfactant (HTAB) were used for this purpose. By comparison of theoretical and experimental data, it was shown that the foam stability in the...