Article
Chemistry, Physical
Yueting Shi, Yan Fu, Shenying Xu, Haijun Huang, Shengtao Zhang, Zhenqiang Wang, Wenpo Li, Hongru Li, Fang Gao
Summary: This study proposes using the molecular aggregation method of organic ionic liquid molecules (OILMs) to enhance adsorption and corrosion inhibition on copper surfaces in sulfuric acid solution. Three new single imidazole-type OILMs with long carbon chains were synthesized and characterized, demonstrating regular molecular assembly in sulfuric acid solution. The formed OILMs aggregates exhibited good chemical adsorption on copper surfaces, forming hydrophobic adsorption layers and showing excellent corrosion resistance in sulfuric acid solution.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Physical
Abdelrahman O. Ezzat, Ahmed M. Tawfeek, Hamad A. Al-Lohedan
Summary: The study aimed to prepare and evaluate the demulsification efficiency of two gemini pyridinium surfactant ILs, with TEGP IL showing higher ability to reduce surface tension and interfacial tension. Both surfactants were successfully applied as demulsifiers for W/O emulsions, achieving 100% demulsification at low concentrations for some compositions, with higher activity observed for TEGP IL than MEGPy surfactant.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Applied
Hamed Sadighian, Ebrahim Ahmadi, Zahra Mohamadnia
Summary: The separation of water and oil from water-in-oil emulsion is crucial for its transportation and refining. Ionic liquids and their derivatives have been studied as effective agents for breaking emulsions. In this study, microcrystalline cellulose grafted with imidazolium-based ionic liquids (MCC@IM-ILs) was synthesized and evaluated as eco-friendly surface-active agents for water separation from crude oil. The structure of the synthesized compounds was confirmed through various characterization techniques. MCC@IM-ILs showed acceptable dehydration efficiency to demulsify different water-in-oil emulsions. The concentration, alkyl chain length, and counter-anion of MCC@IM-ILs played a key role in the separation process.
CARBOHYDRATE POLYMERS
(2023)
Article
Materials Science, Multidisciplinary
Shafiga M. Nasibova, Ravan A. Rahimov, Sevda A. Muradova, Yusif Abdullayev
Summary: Ionic-liquid cationic surfactants with different head-groups were synthesized and their surface parameters were investigated. The synthesized ILCSs showed variation in colloid-chemical parameters when the head group was changed. The ILCS C12DEA exhibited the most effective antimicrobial properties. Polyelectrolyte-surfactant complexes were also synthesized and showed promise for oil recovery.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Gautier Meyer, Ralf Schweins, Tristan Youngs, Jean-Francois Dufreche, Isabelle Billard, Marie Plazanet
Summary: Ionic-liquid-based acidic aqueous biphasic solutions have made a breakthrough in metal recycling. The separation of phases can be achieved by controlling the temperature and acid concentration, which is facilitated by the adsorption of chloride ions on the surface of micelles.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Energy & Fuels
Jawad El Ghazouani, Mohamed Saidoun, Frederic Tort, Jean-Luc Daridon
Summary: The objective of this paper is to propose a multiscale method to evaluate the effect of additives on the destabilization and deposition of asphaltenes under the conditions of nondiluted crude oil samples. This study shows that the presence of a chemical additive slightly delays asphaltene destabilization and significantly decreases the deposited amount at concentrations above 3000 ppm. The effect of the chemical is further studied using the centrifugation technique and optical microscopy observation.
Review
Chemistry, Multidisciplinary
Florian Junge, Pin-Wei Lee, Abhishek Kumar Singh, Janos Wasternack, Michal P. Pachnicz, Rainer Haag, Christoph A. A. Schalley
Summary: This Minireview discusses recent developments in research on the interfacial phenomena of fluorinated amphiphiles, with a focus on applications that exploit the unique and manifold interfacial properties associated with these amphiphiles. Specifically, the article highlights the formation of stable aggregates with different morphologies compared to nonfluorinated counterparts, the use of fluorinated surfactants in high-performance applications such as microfluidic-assisted screening, and the fluorine-specific behavior at solid/liquid interfaces, including the formation of superhydrophobic coatings. It also evaluates recent developments in the remediation of fluorinated surfactants and perfluorinated materials based on their adsorption onto fluorinated surfaces.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Environmental Sciences
Sara Ranjbari, Ali Ayati, Bahareh Tanhaei, Amani Al-Othman, Fatemeh Karimi
Summary: In this study, bi-functionalized chitosan beads were successfully prepared and used for the efficient removal of anionic food dye from polluted water. The experimental data showed high adsorption efficiency, fitting well with the pseudo-first-order kinetic model and the Langmuir isotherm model under optimal conditions. The conjugation of chitosan beads with surfactant and ionic liquid introduced a new type of adsorbents for wastewater treatment.
ENVIRONMENTAL RESEARCH
(2022)
Article
Optics
Nana Li, Yurun Liang, Xiaotong Liu, Guangming Liang, Qianyao Zhang, Ruilin Zhang, Hongfei Gao, Yulong Xiao
Summary: Two amphiphiles with phenylthiophene and cyanostyrene groups in the rigid core and methyl and oligooxyethylene units at the terminal were synthesized. Their mesomorphic and optical behaviors were investigated using various experimental techniques. The positional isomerism led to distinct transition of self-assembly and optical properties, offering a method for constructing multifunctional molecules with different properties and applications.
JOURNAL OF LUMINESCENCE
(2023)
Article
Biochemistry & Molecular Biology
Norhazirah Rosli, Wan Zaireen Nisa Yahya, Mohd Dzul Hakim Wirzal
Summary: Nanostructure adsorbents, specifically nanofiber membranes made of chitosan/PVA blend, were successfully synthesized through electrospinning and functionalization methods to act as potential bio-sorbents for heavy metal ions removal. The synthesized adsorbent showed excellent performance in removing Pb(II) ions from pure heavy metal ions solutions, with a high adsorption capacity and compatibility with the Freundlich isotherm and pseudo-second-order kinetic models.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Multidisciplinary
Hamed Sadighian, Zahra Mohamadnia, Ebrahim Ahmadi
Summary: Emulsions formed by water in crude oil need to be broken before refining processes. Novel derivatives of imidazolium ionic liquids (ILs) containing triazole moiety [SIm-TazCn][Br] were synthesized and grafted onto cellulose (CEL) to prepare eco-friendly demulsifiers for breaking water-in-oil (W/O) emulsions. The CEL[SIm-TazC6][Br] derivative showed a good dehydration efficiency (DE) of 79% at 4000 ppm after 5 min, which increased to 82% after 24 h. The interfacial tension (IFT) of CEL[SIm-TazC6][Br] with a shorter alkyl chain at 4000 ppm after 24 h was measured to be the minimum value of 16.3 mN/m.
Article
Chemistry, Multidisciplinary
Jie Fu, Jia-Ying Liu, Guo-Hao Zhang, Qiu-Hong Zhu, Shuang-Long Wang, Song Qin, Ling He, Guo-Hong Tao
Summary: Adsorption, storage, and conversion of gases are the three critical topics in the field of clean energy and environmental mediation. Exploring new methods to prepare high-performance materials to improve gas adsorption is one of the most concerning topics in recent years. In this work, an ionic liquid solution process (ILSP) is explored to greatly improve the adsorption kinetic performance of covalent organic framework (COF) materials for gaseous iodine.
Article
Polymer Science
David Domingo Huguet, Aitor Gual, Ricard Garcia-Valls, Adrianna Nogalska
Summary: This study demonstrates the potential of improving CO2 capture capabilities by supporting ionic liquids (ILs) on a polymeric matrix. The internal morphology and surface characteristics of the membrane were found to influence the ILs sorption capacity and CO2 solubility.
Article
Chemistry, Applied
Chaoting Deng, Yaping Liu, Donglin Yang, Xiaoyu Cao, Hengjun Gai, Meng Xiao, Tingting Huang, Quanhong Zhu, Hongbing Song
Summary: In this study, the adsorption properties of m-cresol in aqueous phase were regulated by preparing poly(ionic liquid)s (PILs). The PILs showed high adsorption capacity and the adsorption kinetics followed pseudo-second-order kinetics. The adsorption thermodynamics were described well by the Langmuir model. The adsorbent could be separated and recycled, maintaining stable removal efficiency.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Yue Pan, Kun Tong, Mingyu Lin, Wenchang Zhuang, Wenyou Zhu, Xiao Chen, Qintang Li
Summary: Ionic liquids are promising solvents for self-assembly, and the aggregation behaviors of various surfactants, especially cationic and nonionic surfactants, in ionic liquids have been studied. This work investigates the aggregation behaviors of sulfobetaine zwitterionic surfactants in the protic ionic liquid ethylammonium nitrate (EAN). The study finds the formation of micellar phase, hexagonal lyotropic liquid crystal phase, and an additional micellar cubic lyotropic liquid crystal phase.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Environmental Sciences
A. E. Mubark, H. A. Hakem, E. G. Zaki, S. M. Elsaeed, A. A-H Abdel-Rahman
Summary: The study synthesized grafted guar gum hydrogel as an adsorbent for the recovery of Cd(II) and Cu(II) ions, showing high adsorption capacity and stability during regeneration cycles. The results indicate promising industrial applications for the prepared hydrogel as an adsorbent.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Medicinal
Chepyala Karuna, Ch. Venkata Ramana Reddy, Riyaz Syed, Ayman M. Atta
Summary: A set of novel thiazolepyridine derived heterocyclic hybrids were successfully synthesized using a sustainable and economical method. These derivatives showed moderate antibacterial activity and their physiochemical properties and bioactivity scores were within the accepted range.
LETTERS IN DRUG DESIGN & DISCOVERY
(2022)
Article
Biochemistry & Molecular Biology
Mahmood M. S. Abdullah, Abdelrahman O. Ezzat, Hamad A. Al-Lohedan, Ali Aldalbahi, Ayman M. Atta
Summary: This study focuses on the synthesis of two new amphiphilic ionic liquids (AILs) using abietic acid (AA) as a precursor and their application as efficient demulsifiers for water-in-crude oil (W/O) emulsions. The AILs showed promising results in demulsifying W/O emulsions in different crude oil: brine ratios.
Article
Chemistry, Multidisciplinary
Shimaa Mohamed Elsaeed, Elsayed Gamal Zaki, Ahmed Abdelhafes, Ayman S. Al-Hussaini
Summary: Water shortages are a serious problem, and developing cellulose-based superabsorbent polymers (SAPs) is an important alternative. Experimental assessments show that a composite material made of carboxymethyl cellulose and different copolymers has excellent water absorption and retention properties. The ratio of constituents, temperature, and pH value significantly impact the swelling performance of the composite material. This new SAP can be used together with commercial SAPs for water reservoirs in arid regions.
Article
Energy & Fuels
Mahmood M. S. Abdullah, Hamad A. Al-Lohedan
Summary: This work focuses on the synthesis of alginate-based poly ionic liquids for efficient demulsification of water in oil emulsions. Two different poly ionic liquids were successfully synthesized and evaluated for their efficiency in demulsification.
Article
Environmental Sciences
Mahmood M. S. Abdullah, Noorah A. Faqihi, Hamad A. Al-Lohedan, Zainab M. Almarhoon, Faruq Mohammad
Summary: The oil spill is a significant pollution source in marine environments, and the use of magnetite nanomaterials (MNMs) is a commonly applied technique for oil spill remediation. This study focuses on synthesizing and using new ionic liquids (ILs) to modify the surfaces of MNMs and enhance their performance in absorbing crude oil. The results show that the modified MNMs achieved high efficiency in crude oil uptake, even at low MNMs:crude oil ratios. The study also found that the contact time had an impact on the effectiveness of the MNMs, with longer contact times leading to higher crude oil uptake.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Thermodynamics
Mahmood M. S. Abdullah, Noorah A. Faqihi, Hamad A. Al-Lohedan, Zainab M. Almarhoon, Abdulnasser Mahmoud Karami
Summary: This study focused on using oleic acid to synthesize two new ionic liquids for breaking water-in-oil emulsions. The synthesized liquids showed efficient performance in breaking the emulsion and separating clean water.
FLUID PHASE EQUILIBRIA
(2023)
Article
Chemistry, Multidisciplinary
Mahmood M. S. Abdullah, Mohd Sajid Ali, Hamad A. Al-Lohedan
Summary: This study focuses on the surface modification of magnetite nanoparticles (MNPs) using new polyamines and their application in oil spill remediation. The results show that the modified MNPs have high performance, low cost, magnetic properties, and reusability, and their oil uptake capacity increases with the MNPs-to-oil ratios and contact time.
JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Noorah A. Faqihi, Mahmood M. S. Abdullah, Mohd Sajid Ali, Hamad A. Al-Lohedan, Zainab M. Almarhoon
Summary: Recently, magnetite nanoparticles (MNPs) have been highly valued for their unique properties and potential in oil spill cleanup. In this study, the surface of MNPs was functionalized using newly synthesized hydrophobic ionic liquids (ILs) and applied for oil spill cleanup. The functionalized MNPs showed high oil removal efficiency even at low MNP ratios. Additionally, MNPs functionalized with GEOA-IL exhibited higher oil removal efficiency compared to those functionalized with GEDA-IL. Furthermore, the functionalized MNPs showed excellent reusability over multiple cycles.
JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Ayman M. Atta, Eid. M. S. Azzam, Khalaf M. Alenezi, Hani El Moll, Lassaad Mechi, Walaa I. El-Sofany
Summary: The large sizes of cations and anions in organic salts drive the application of ionic liquids (organic salts) in harsh salty conditions. Crosslinked ionic liquid networks are formed as anti-rust and anticorrosion protective films on substrate surfaces to prevent corrosion by repelling seawater salt and water vapor.
Article
Engineering, Chemical
Mahmood M. S. Abdullah, Hamad A. Al-Lohedan, Mohd Sajid Ali
Summary: Polyethylene terephthalate (PET) waste was converted into a valuable material by synthesizing a polyionic liquid (PIL), which showed high performance in dehydrating crude oil emulsions.
ADVANCES IN POLYMER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Amar Al-khawlani, Yanyun Wang, Jiehua Bao, Xiaoli Sheng, Mahmood M. S. Abdullah, Yiwei Zhang, Yuming Zhou
Summary: Bifunctional Pt-Ru/Y zeolite catalysts were prepared by ethylene glycol reduction method and their performance in hydrogenation reaction was investigated. Thermal treatment improved the acidity of the catalysts and enhanced the conversion rate and yield of the reaction.
CATALYSIS COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Mahmood M. S. Abdullah, Hamad A. Al-Lohedan
Summary: In this study, two new poly(ionic liquid)s (PILs) were synthesized and applied in breaking water-in-oil (W/O) emulsions. The chemical structures, thermal stability, surface activity, aggregation size, and zeta potential were investigated, showing that TCAU-PIL exhibited higher breaking performance compared to TCAP-PIL.
SEPARATION SCIENCE AND TECHNOLOGY
(2023)
Article
Polymer Science
Wasmia Mohammed Dahan, Faruq Mohammad, AbdelRahman O. Ezzat, Ayman M. Atta, Hissah Hamad Al-Tilasi, Hamad A. Al-Lohedan
Summary: This study investigates insulin-release profiles from chitosan-amide-modified stimuli-responsive polymers formed from different fatty acids, and explores the drug release mechanisms using various pharmacokinetic models.
