Article
Materials Science, Multidisciplinary
Indah Raya, Gunawan Widjaja, Zaid Hameed Mahmood, Abed J. Kadhim, Kabanov Oleg Vladimirovich, Yasser Fakri Mustafa, Mustafa M. Kadhim, Trias Mahmudiono, Ismail Husein, Leila Kafi-Ahmadi
Summary: In this study, cellulose acetate/graphene oxide (CA/GO) composite nanofibers were prepared and used for the removal of Cr(VI) ions from water. The impact of adsorption parameters, such as contact time, pH, and temperature, on the adsorption efficiency was investigated. The results showed that higher temperature favored the adsorption of Cr(VI) ions. The adsorption process was described by various kinetic and isotherm models. The composite nanofibers exhibited high adsorption capacity and reusability.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Polymer Science
Miyeon Kwon, Juhea Kim, Juran Kim
Summary: Hybrid cellulose acetate nanofibers containing TiO2 were prepared using emulsion electrospinning technique for denitrification and filtration. The nanofibers showed excellent photocatalytic and filtration efficiency, with increased surface hydrophobicity due to the morphology of micro-wrinkles and protrusions. This suggests that TiO2-CA nanofibers could be promising materials for highly efficient and sustainable air filters in industrial and home appliance systems.
Article
Chemistry, Applied
Joshua Lee, Joon Yeon Moon, Jeong Chan Lee, Tae In Hwang, Chan Hee Park, Cheol Sang Kim
Summary: Cellulose and its derivatives are commonly used as nanofibrous biomaterials, but research on obtaining 3D cellulose nanofibers is limited. This study presents a simple method for converting electrospun 3D cellulose acetate/lactic acid nanofibers into a 3D cellulose/calcium lactate nanocomposite matrix, resulting in a stronger and more cell-friendly material suitable for bone tissue engineering. The successful conversion was verified through various analytical techniques, and the scaffolds were found to provide a suitable environment for cell growth and infiltration.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Multidisciplinary
Xunlong Zhang, Quangan Cai, Ke Liu, Guilong Yan, Jingyu Chen, Yuanpeng Wu, Zhenyu Li, Li Wang, Han Li
Summary: In this study, flexible and robust europium complex/cellulose acetate nanofiber membranes were prepared by electrospinning. These membranes showed unique specificity and good sensitivity in detecting Hg2+. The study provides a convenient and effective super-sensitive detection method for trace amounts of Hg2+ in various water environments.
Article
Materials Science, Textiles
Neda Sangani, Niloofar Eslahi, Mehdi Varsei, Hajar Ghanbari
Summary: In this study, cellulose acetate (CA) and graphene oxide (GO) nanofiber composites were prepared using electrospinning technique along with nanoclay (NC) for filtration applications. The addition of GO and NC improved the mechanical strength and thermal stability of the nanocomposite fibers. The produced fibrous nanocomposite showed potential for color removal in the textile industry.
JOURNAL OF THE TEXTILE INSTITUTE
(2023)
Article
Materials Science, Textiles
Abbas Mobasheri, Saeed Parhoodeh, Gholamabbas Shams
Summary: In this study, SnO2 nanofibers and their modifications (Cd doping and making a composite with reduced graphene oxide) were synthesized via electrospinning and used for CO gas sensing. The enhanced sensing properties of Cd-doped SnO2-RGO nanofibrous mat, compared to other counterparts, can be attributed to the p-type behavior of RGO inside the nanofibers, catalytic activity, and the addition of new oxidation sites for cadmium elements, providing flexible and optimal gas sensing.
FIBERS AND POLYMERS
(2022)
Article
Polymer Science
Mujahid Mehdi, Huihui Qiu, Bing Dai, Raja Fahad Qureshi, Sadam Hussain, Muhammad Yousif, Peng Gao, Zeeshan Khatri
Summary: A novel sericin encapsulated silver nanoclusters were synthesized and incorporated into electrospun cellulose acetate fibers, showing enhanced antibacterial efficiency against E. coli and S. aureus. The composite material exhibited promising potential as an antibacterial product.
Article
Engineering, Environmental
Atefeh Mousavi Anjeh, Seyed Reza Nabavi
Summary: In this study, CS/PA6 composite nanofibers were prepared by electrospinning and the addition of GO improved the performance of the composite nanofibers. The results showed that the addition of GO led to the formation of a spider-web-like structure and improved the Young's modulus and thermal degradation resistance of the nanofibers. Furthermore, the prepared composite nanofibers exhibited good adsorption capacity for lead ions.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Polymer Science
Tobiasz Gabrys, Beata Fryczkowska, Janusz Fabia, Dorota Binias
Summary: This study presents a simple method to obtain a bacterial cellulose composite with the addition of graphene oxide using an in situ method. The study investigates the influence of graphene oxide nanoparticles on the structure and properties of the obtained membranes. The results demonstrate the potential of using the composite membranes as active dressings with sustained-release analgesic medicine.
Article
Materials Science, Textiles
Hye Jin Kim, So Hyun Park
Summary: Nanotechnology has enabled the development of biocompatible nanofibers in the healthcare industry. In this study, a cellulose acetate electrospun membrane was characterized with nanofibers of a certain diameter and pore size, which resulted in excellent air-water transfer properties. The tensile strength of the membrane was reinforced through the addition of waterborne polyurethane and graphene oxide coatings. The coated membrane maintained comparable air permeability and water vapor transmission rate, and exhibited rapid wetting transition. These achievements have important implications for filtration and wound dressing applications.
JOURNAL OF ENGINEERED FIBERS AND FABRICS
(2022)
Article
Materials Science, Multidisciplinary
Hongyan Zhang, Hua Zhong, Feng Dou, Cheng Wang, Shuhong Wang
Summary: Composite nanofibers of PPV/H-GO were prepared using electrospinning method in this study, and the results showed promising application potential in terms of morphology and photoelectric properties.
Article
Chemistry, Applied
Bikendra Maharjan, Jeesoo Park, Vignesh Krishnamoorthi Kaliannagounder, Ganesh Prasad Awasthi, Mahesh Kumar Joshi, Chan Hee Park, Cheol Sang Kim
Summary: This study addressed the insufficient mechanical strength of natural hydrogel scaffolds in bone tissue engineering by incorporating regenerated cellulose nanofibers into chitosan hydrogel. The resulting rCL/CS composite scaffold showed improved compressive strength, biomineralization, and pre-osteoblast cell viability. The enhanced osteogenic differentiation ability of rCL/CS composite scaffold suggests its promise as a three-dimensional bio-scaffold for bone tissue engineering.
CARBOHYDRATE POLYMERS
(2021)
Article
Chemistry, Applied
Yujie Ji, Qi Xia, Juqing Cui, Minghao Zhu, Yufeng Ma, Yutong Wang, Lu Gan, Shuguang Han
Summary: The CA nanofiber mats prepared by electrospinning significantly improved the mechanical properties and flame retardancy of the HPLs, showing great potential for enhancing the performance of composite materials.
CARBOHYDRATE POLYMERS
(2021)
Article
Engineering, Chemical
Shabin Mohammed, Hanaa M. Hegab, Ranwen Ou
Summary: In this study, the efficient combination of cellulose nanofibers and graphene oxide was demonstrated to produce membranes with excellent nanofiltration performance.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2022)
Article
Engineering, Electrical & Electronic
Khaled S. Elmessiry, M. R. El-Aassar, A. B. A. A. Nassr, El-Refaie Kenawy, Baha Eddin Moharam, Nehal Ali
Summary: Hybrid capacitors combining traits of double-layer and faradaic capacitors are promising, with polyindole (PIND) showing potential as a supercapacitor material. Through chemical synthesis and electrospinning, PIND/PAN/GO nanofibers were successfully produced for enhanced electrode stability and conductivity. Study findings confirmed the higher specific capacitance of PIND/PAN/GO nanofibers and demonstrated the effectiveness of electrospinning as a cost-effective technique for fabricating electrodes.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Environmental Sciences
Samy Yousef, Justas Eimontas, Kestutis Zakarauskas, Nerijus Striugas, Alaa Mohamed
Summary: The study aimed to convert lint-microfibers (LMs) into energy products through pyrolysis treatment. Experimental observations were made on morphology, elemental composition, and gas concentrations, and a mathematical model was developed to assess the economic and environmental performance of the strategy.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Review
Materials Science, Multidisciplinary
Sameh Dabees, Vineet Tirth, Alaa Mohamed, Bahaa M. Kamel
Summary: The study prepared potential gear materials with enhanced hardness, tensile properties, and wear resistance using nanocomposites. Nanofillers improved the mechanical properties and thermal stability of the composites within a certain concentration range, but could lead to increased brittleness at higher concentrations.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Environmental Sciences
Muhammed Abdelmaksoud, Alaa Mohamed, Abderrahman Sayed, Sherif Khairy
Summary: Black TiO2 and graphene oxide are prepared in this study for photodegradation of dyes under visible light. The optimum degradation efficiency for malachite green and methylene blue dyes is found to be 74% and 39%, respectively, occurring at pH values of 8 and 10. The stability and flexibility of the nanofibers allow for continuous application and reuse after several cycles.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biotechnology & Applied Microbiology
Samy Yousef, Justas Sereika, Andrius Tonkonogovas, Tawheed Hashem, Alaa Mohamed
Summary: This research aims to study the influence of high temperatures and pressure on the selectivity performance of Polyethersulfone (PES) membranes for CO2/N2, CO2/H2, and CO2/CH4, and their potential applications in biogas upgrading systems. The results showed that low pressure and high temperature can enhance the selectivity performance and improve gas permeability. PES membranes are considered a promising technology for biogas upgrading with high selectivity, especially at high separation temperatures and low pressure.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Engineering, Environmental
Samy Yousef, Justas Eimontas, Nerijus Striu, Alaa Mohamed, Mohammed Ali Abdelnaby
Summary: This study focused on the pyrolysis utilization of end-life ultrafiltration polymer nanocomposite membranes, finding that CNTs and GNs can effectively reduce the activation energy of the decomposition process, making polymer membranes a potential source of renewable energy.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Alaa Mohamed, Samy Yousef, Andrius Tonkonogovas, Vidas Makarevicius, Arunas Stankevicius
Summary: This study investigates the incorporation of graphene nanosheets (GNs) into polyethersulfone (PES) membranes for gas separation applications. The prepared PES-GNs mixed matrix membranes (MMMs) showed improved gas separation performance compared to the pristine PES membrane, along with adequate mechanical stability. The permeability and selectivity of CO2, N2, H2, and CH4 gases were enhanced by increasing the filler content, pressure, and temperature.
ARABIAN JOURNAL OF CHEMISTRY
(2022)
Article
Materials Science, Multidisciplinary
Samy Yousef, Sharath P. Subadra, Simona Tuckute, Arunas Baltus, Stase-Irena Lukos, E. L. Arafa, Alaa Mohamed
Summary: This research aims to improve the mechanical properties of polyethersulfone (PES) membranes by supporting them with a high-strength and porous woven fabric substrate. The results showed that the composite membranes had increased strength and thermal stability while maintaining their porous structure.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Bahaa M. Kamel, Enas L. Arafa, Alaa Mohamed
Summary: The tribological and rheological properties of a hybridized nanocomposite of graphene nanosheets and titanium dioxide nanoparticles as grease additives were studied. The results showed that the hybrid nano grease exhibited improved friction reduction and anti-wear properties compared to the base grease. The rheological behavior of the hybrid nano grease was enhanced with an increase in concentration, while the thermal conductivity was directly proportional to the concentration of hybrid nanoparticles.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Physical
Bahaa M. Kamel, Alaa Mohamed, M. S. Gad
Summary: The tribological and rheological properties of nanocomposite grease containing TiO2/CNTs/GNs were studied. It was found that the addition of TiO2/CNTs/GNs can reduce friction coefficient, decrease wear scar diameter, and enhance the thermal conductivity of the grease.
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
(2022)
Article
Energy & Fuels
Samy Yousef, Justas Eimontas, Nerijus Striugas, Alaa Mohamed, Marius Praspaliauskas, Mohammed Ali Abdelnaby
Summary: The remarkable properties of polysulfone (PSF) membranes have led to their use in various ultrafiltration applications. However, the extensive use and short service life of PSF membranes have resulted in a large amount of waste that needs to be managed properly. This study aimed to convert the end-of-life PSF membranes into valuable chemical and energy products through pyrolysis treatment, which was found to be effective in producing gaseous products rich in phenol and benzoic acid compounds.
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2023)
Article
Chemistry, Physical
Alaa Mohamed, Samy Yousef, Vidas Makarevicius, Andrius Tonkonogovas
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Engineering, Environmental
Alaa Mohamed, Samy Yousef, Simona Tuckute, Andrius Tonkonogovas, Arunas Stankevicius
Summary: This research investigates the effect of supporting polysulfone (PSF) membranes with different pore structures using non-woven carbon fibers (CF) on their gas permeability and selectivity. The study finds that the incorporation of CF enhances pore structures, porosity, and roughness of the PSF membranes. The finger FP structure shows higher strength but lower thermal stability compared to the sponge SP structure. Additionally, the SP structure exhibits higher gas permeability and selectivity, particularly for H2 gas separation.
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
(2023)
Article
Energy & Fuels
Samy Yousef, Andrius Tonkonogovas, Stase-Irena Lukosiute, Alaa Mohamed
Summary: This study investigated the impact of the finger-like (FP) and sponge-like (SP) structures on the gas permeability and selectivity of polysulfone (PSF) membranes. The results showed that the FP/PSF membrane had smaller pore size, higher porosity, better mechanical strength, higher thermal stability, and higher permeability and selectivity compared to the SP/PSF membrane. Therefore, membranes with finger-like structure are highly recommended for gas separation applications.
Article
Chemistry, Multidisciplinary
Samy Yousef, Andrius Tonkonogovas, Alaa Mohamed
Summary: This study investigates the effect of different porous structures and a polyester support layer on the gas permeation and selectivity of polysulfone membranes. The results show that the finger-like pore structure exhibits better selectivity, making it suitable for hydrogen separation industry.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Alaa Khalil, Nikolaos Montesantos, Marco Maschietti, Jens Muff
Summary: This study presents the synthesis of tailormade thin-film composite (TFC) nanofiltration (NF) membranes for the separation of H2S scavengers from oil and gas wastewater. By optimizing the membrane thickness and operating at a certain permeate recovery rate, high rejection rates and water permeability were achieved, while minimizing fouling.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
