Article
Engineering, Chemical
Xuhui Hu, Xing Chen, Mattia Giagnorio, Chunhong Wu, Yunbai Luo, Claus Helix-Nielsen, Ping Yu, Wenjing Zhang
Summary: A new class of PVDF-based membranes suitable for membrane distillation was prepared via electrospinning. By tuning the solvent ratio and operating parameters, the classical fiber morphology of PVDF electrospun membranes was changed to generate a beaded structure. Increasing the bead density improved the water contact angle and reduced the membrane thickness, but decreased the membrane mechanical stability. Simultaneous deployment of 17 and 25 wt% of PVDF solutions in a double-needle electrospinning device enabled the fabrication of electrospun PVDF-beaded membranes with high hydrophobicity, low thickness, and good mechanical stability for membrane distillation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Chemistry, Applied
Zixuan Wu, Xin Ji, Quanlong He, Hongbo Gu, Wei-xian Zhang, Zilong Deng
Summary: To mitigate membrane fouling and address the trade-off between permeability and selectivity, nanocellulose fine-tuned polyvinylidene fluoride (PVDF) porous membranes were fabricated. The incorporation of cellulose nanocrystals and oxidized cellulose nanofibers improved the surface charge, hydrophilicity, porosity, and tensile strength of the membranes. The NC-PVDF membranes exhibited enhanced flux, rejection, and fouling resistance, making them promising candidates for membrane separation.
CARBOHYDRATE POLYMERS
(2024)
Article
Acoustics
E. Marechal, E. Geron, S. Hole
Summary: This paper characterizes the mechanical and electrical properties of PVDF and PVDF-TrFE films using the electro-acoustic reflectometry method in the frequency range of 20 MHz to 2 GHz. In addition, nonuniform poling is observed in PVDF-TrFE samples, leading to the generation of even and odd resonance modes.
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
(2023)
Article
Engineering, Multidisciplinary
Jung-Eun Lee, Young-Eun Shin, Ga-Hyeun Lee, Jihyun Kim, Hyunhyub Ko, Han Gi Chae
Summary: PVDF/CNC nanocomposite fibers with good mechanical properties and high beta phase fraction were prepared, suitable for smart textile applications. The tensile properties of all fibers were enhanced as the polymeric chains were extended during the stretching process. The optimal nanocomposite fiber was prepared with 1 wt% CNC loading.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Jnyana Ranjan Mishra, Sushanta K. Samal, Smita Mohanty, Sanjay K. Nayak
Summary: A novel PVDF/Ag@TiO2 nanocomposite membrane with high pure water flux and BSA rejection, as well as fast removal of E. coli, was successfully prepared. The incorporation of nanoparticles significantly enhanced the antifouling and antibacterial properties of the membrane.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Chemistry, Multidisciplinary
Anseong Park, Je-Yeon Jung, Seungtae Kim, WooJin Kim, Min Young Seo, Sangdeok Kim, YongJoo Kim, Won Bo Lee
Summary: The crystallization behavior of PVDF in NMP/DMF solvent was analyzed by MD simulation. The PVDF phase showed rapid shifts at 34 and 50 wt% in both solvents. DMF solvents had a higher ratio of beta phase crystalline structures compared to NMP solvents. The solvation behavior and atomic scale interactions can be used as indicators in future solvent research.
Article
Biochemistry & Molecular Biology
Roziana Kamaludin, Lubna Abdul Majid, Mohd Hafiz Dzarfan Othman, Sumarni Mansur, Siti Hamimah Sheikh Abdul Kadir, Keng Yinn Wong, Watsa Khongnakorn, Mohd Hafiz Puteh
Summary: The study fabricated antibacterial hollow fiber membranes with zinc oxide nanoparticles, improving membrane anti-biofouling characteristics and achieving good pure water flux and protein rejection rate.
Article
Polymer Science
Atike Ince Yardimci, Asli Durmus, Mehmet Kayhan, Ozgur Tarhan
Summary: In this study, Polyacrylonitrile (PAN)/polyvinylidene fluoride (PVDF) nanofibers incorporated with AgNO3 were successfully produced and investigated for their antibacterial properties and air permeability. The results showed that the optimum concentration of AgNO3 was 10wt% for desirable nanofiber morphology and antibacterial properties.
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS
(2022)
Article
Physics, Applied
Nitin Jaglan, Poonam Uniyal
Summary: This study investigates the effect of annealing on the structural, dielectric, piezoelectric, and energy storage behavior of PVDF thick film. The results show that the film annealed at 110 degrees C exhibits the best enhancement in the beta crystalline phase and has good dielectric constant, dielectric loss, and piezoelectric coefficient. There is a significant improvement in dielectric constant, discharge energy density, and piezoelectric coefficient compared to the film annealed at 50 degrees C.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Engineering, Environmental
Theoneste Nshizirungu, Masud Rana, Md Ishtiaq Hossain Khan, Young Tae Jo, Seong-Jae Park, Jeong-Hun Park
Summary: Several studies have explored the recovery of valuable metals from used lithium-ion batteries (LIBs), but efficient leaching and separation of rare metals from the cathode material remain challenging. This study presents a novel method using subcritical water-containing polyvinylidene fluoride (PVDF) for extracting high-value metals from spent LIBs. The optimized conditions achieved high extraction efficiencies for lithium, nickel, cobalt, and manganese. The research also revealed the reaction kinetics and activation energies of the leaching process, indicating that the PVDF-assisted subcritical water extraction is a promising alternative method.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Muqoyyanah Muqoyyanah, Fitri Khoerunnisa, Murni Handayani, Yosephin Dewiani Rahmayanti, Hari Agung Triadi, Riri Uswatun Annifah, Yurin Karunia Apsha Albaina Iasya, Triyanda Gunawan, Witri Wahyu Lestari, Eli Hendrik Sanjaya, Wijayanti Dwi Astuti
Summary: In this work, polyvinylidene fluoride (PVDF) membranes embedded with graphene oxide (GO) and silver nanoparticles (Ag NPs) were fabricated. The membranes exhibited enhanced antibacterial activity and biofouling resistance, making them suitable for various applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Nanoscience & Nanotechnology
Ping Huang, Shunjian Xu, Wei Liu, Chen Liu, Hui Ou, Yongping Luo, Zhimin Yan, Xu Zhou, Pengjun Wu, Xingyu Liao
Summary: In order to enhance the application of flexible piezoelectric materials, such as wearable/implantable devices and robot electronic skin, in this study, a new function of antibacterial properties was introduced by incorporating carbon dots (CDs) onto the surface of ZnO nanoparticles, thus improving the antibacterial rate for Staphylococcus aureus. Additionally, CDs bridged the interface incompatibility and reduced the negative effect of ZnO aggregation, leading to the formation of the beta-phase in the PVDF-HFP composites and achieving high piezoelectric performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Ping Huang, Shunjian Xu, Wei Liu, Chen Liu, Hui Ou, Yongping Luo, Zhimin Yan, Xu Zhou, Pengjun Wu, Xingyu Liao
Summary: To enhance the application of flexible piezoelectric materials in wearable/implantable devices and robot electronic skin, it is important to add antibacterial properties and improve piezoelectric performance. This study introduced carbon dots (CDs) onto ZnO nanoparticles to create a multifunctional composite. The ZnO@CDs composite exhibited excellent antibacterial activity and induced beta-phase formation in PVDF-HFP, resulting in high piezoelectric performance.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Biotechnology & Applied Microbiology
Xuemei Ge, Shang Wu, Wen Shen, Lijuan Chen, Yan Zheng, Fen Ao, Yuanlan Ning, Yueyang Mao, Zhong Chen
Summary: In this study, gold nanoparticles and curcumin drug were incorporated into PVDF nanofibers using electrospinning. The morphological and drug release properties were characterized, and it was found that the addition of gold nanoparticles improved and prolonged the drug release. These results suggest the potential application of PVDF-AuNPs nanofiber membrane in nerve regeneration.
BIOENGINEERING-BASEL
(2022)
Article
Materials Science, Multidisciplinary
Lei Cheng, Chao Liu, Ji Wang, Yang Wang, Wenhui Zha, Xinsong Li
Summary: A hydrogel was coated onto the surface of silicone rubber to give it antifouling and antibacterial properties. The modified silicone rubber showed decreased protein absorption and exhibited antibacterial effects against various microorganisms, making it suitable for medical catheter applications.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Materials Science, Ceramics
Reza Peymanfar, Shaghayegh Ghorbanian-Gezaforodi, Elnaz Selseleh-Zakerin, Ali Ahmadi, Arezoo Ghaffari
CERAMICS INTERNATIONAL
(2020)
Article
Engineering, Electrical & Electronic
Reza Peymanfar, Farzaneh Azadi
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Chemistry, Multidisciplinary
Sara Amirnejat, Aliakbar Nosrati, Reza Peymanfar, Shahrazad Javanshir
RESEARCH ON CHEMICAL INTERMEDIATES
(2020)
Article
Engineering, Electrical & Electronic
Reza Peymanfar, Elnaz Selseleh-Zakerin, Ali Ahmadi, Ali Sharifi, Mohammad M. Mojtahedi
Summary: This research focused on the synthesis of La0.8Sr0.2FeO3/cauliflower-like polyaniline (PANi) nanocomposite using dodecylbenzenesulfonic acid as a doping agent. The structure was characterized using various analytical techniques, showing that pure materials were successfully synthesized. The interactions between nanoparticles and aniline monomers led to the unique morphology of the nanocomposite, while the addition of PANi enhanced the softness and isotropic magnetic property, making it suitable for microwave absorption. Results showed that the nanocomposite exhibited desirable microwave absorption properties with improved bandwidth.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Reza Peymanfar, Fereshteh Moradi
Summary: The study focused on the preparation of novel microwave absorbing materials using pure carbon microfibers functionalized via sonochemistry and coated with bismuth sulfide nanoparticles. Through modulation of interfacial interactions, efficient electromagnetic interference shielding effectiveness was achieved, with a wide bandwidth and remarkable reflection loss performance.
Article
Chemistry, Physical
Reza Peymanfar, Farbod Fazlalizadeh
Summary: The study synthesized pure ECMS/ZnAl2O4 nanocomposite using novel raw materials and modified sol-gel method, and evaluated their performance through various analyses. The findings showed that ECMS could reduce the energy band gap of nanoparticles, resulting in different microwave characteristics when combined with different matrices. Ultimately, the research showed promising results for potential applications in microwave technologies.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Nanoscience & Nanotechnology
Reza Peymanfar, Shaghayegh Ghorbanian-Gezaforodi
Summary: A novel bioinspired carbon structure was utilized to create a microwave absorbing material with unique properties. Through a series of oxidative treatments and combination of sonochemistry and hydrothermal routes, the microwave absorbing features were significantly improved. The use of polyacrylonitrile (PAN) as a medium in fabricating the microwave absorbers led to a successful broadband microwave absorption effect.
Article
Chemistry, Physical
Reza Peymanfar, Elnaz Selseleh-Zakerin, Ali Ahmadi
Summary: This study focuses on synthesizing g-C3N4 2D structures using innovative methods, and characterizing their properties through various experiments. The research demonstrates that the tailored 2D nanostructures exhibit excellent optical and microwave absorbing features.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Materials Science, Multidisciplinary
Reza Peymanfar, Shahrzad Javanshir, Mohammad Reza Naimi-Jamal, Seyed Hassan Tavassoli
Summary: The issue of electromagnetic pollution has raised global concerns due to the increasing use of artificial intelligence devices, 5G networks, and electronic devices emitting electromagnetic waves. Recent research has focused on creating microwave absorbing structures, particularly nanostructures, to counteract the harmful effects of electromagnetic waves. The manipulation of size, shape, defects, and medium of these absorbing structures have been shown to significantly impact microwave absorption properties, with nanostructures offering unique advantages.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Multidisciplinary Sciences
Reza Peymanfar, Elnaz Selseleh-Zakerin, Ali Ahmadi, Seyed Hassan Tavassoli
Summary: In this study, FCMT/CuCo2S4/PAN composite materials with excellent microwave absorbing properties were prepared, and their antibacterial performance was carefully evaluated. The results showed that this composite material exhibited good performance in both microwave absorption and antibacterial aspects.
SCIENTIFIC REPORTS
(2021)
Article
Multidisciplinary Sciences
Reza Peymanfar, Elnaz Selseleh-Zakerin, Ali Ahmadi, Ardeshir Saeidi, Seyed Hassan Tavassoli
Summary: A self-healing hydrogel was developed with transparent properties to visible light while having UV, IR, and microwave absorption capabilities. By incorporating various materials as fillers, the influences on the microwave and optical characteristics of the hydrogel were investigated. Results demonstrated that the hydrogel showed promising performance in shielding and energy efficiency.
SCIENTIFIC REPORTS
(2021)
Correction
Chemistry, Multidisciplinary
Sara Amirnejat, Aliakbar Nosrati, Reza Peymanfar, Shahrazad Javanshir
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Multidisciplinary Sciences
Shabnam Keykavous-Amand, Reza Peymanfar
Summary: In this study, CuFe2O4 nanoparticles were used to enhance the energy efficiency and shielding efficiency of bricks made from clay soil. The brick/CuFe2O4 nanocomposite achieved high reflection loss and wide bandwidth, effectively shielding over 58% of electromagnetic waves mainly through mechanisms such as conductive loss.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Atiye Farahani, Hosein Naderpour, Gerasimos Konstantakatos, Amir Tarighat, Reza Peymanfar, Panagiotis G. Asteris
Summary: The research proposes the utilization of a fuzzy expert system to enhance the diagnosis of chemical deterioration in reinforced concrete structures. The system can evaluate and quantify the level of deterioration based on various symptoms and inspection data, providing valuable insights into different types of deterioration and enabling a more precise diagnosis.
APPLIED SCIENCES-BASEL
(2023)
Article
Energy & Fuels
Reza Peymanfar, Parisa Mousivand, Ali Mirkhan
Summary: This study presents a nanocomposite material that can absorb microwaves and save energy. By manipulating the mass fraction, the microwave and optical properties of the material can be modulated. As a building material, it exhibits excellent microwave absorption and infrared reflection capacity, offering a new solution for energy-saving and microwave absorption.
