Article
Nanoscience & Nanotechnology
Anupam Das, Nilanjan Mukherjee, Tushar Jana
Summary: In this study, graphene oxide (GO) was functionalized by growing polymer chains on its surface to make a highly efficient nanocomposite-based proton exchange membrane (PEM) with oxypolybenzimidazole (OPBI). Three different types of polymer-g-GO, which were pAAM-g-GO, pAMPS-g-GO, and pSPAK-g-GO, were obtained by polymerizing different monomers on the activated GO surface. The effects of grafted polymer structure and chain length on nanocomposite PEM properties were studied. The nanocomposite PEM exhibited excellent thermal stability, improved tensile properties, increased proton conductivity, and superior phosphoric acid (PA) retention. When 2.5 wt% pSPAK-g-GO was mixed with OPBI, the resulting PEM showed significantly enhanced proton conductivity compared to the pristine OPBI membrane. This is the first report on the utilization of polymer-g-GO in polybenzimidazole membranes for high-temperature PEM application.
ACS APPLIED NANO MATERIALS
(2023)
Article
Engineering, Chemical
Feng Shi, Junxia Sun, Jingtao Wang, Min Liu, Zhikun Yan, Bin Zhu, Yifan Li, Xingzhong Cao
Summary: The study found that MXene-filled membranes allow for much higher loading (up to 20 wt%) compared to GO-filled membranes (up to 5 wt%). Interestingly, dry-state membranes exhibit optimal CO2 separation performance at low loading (1 wt%), while wet-state membranes show increased permeability and CO2/N-2 selectivity at higher filler loadings, contrasting with results obtained under dry conditions. The enhanced CO2 separation performance at high loading under humidification can be attributed to the hydrated interlayer channels of MXene/GO, indicating unique characteristics of MXene in wet-state mixed matrix membranes for CO2 separation.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Zahra Nadizadeh, Hossein Mahdavi
Summary: In this research, a method was developed to stabilize RAFT initiators on the surface of polyamide NF membranes, followed by successful grafting of a zwitterionic polymer pMEDSAH to reduce irreversible protein adsorption. The prepared grafting membranes showed promising potential for practical applications.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Polymer Science
Farhang Pazani, Abdolreza Aroujalian
Summary: Embedding graphene nanoplatelets into the Pebax selective layer at different concentrations can significantly improve the CO2 permeability and selectivity of MMCMs. The higher aspect ratio of GNPs contributes to more interactions with Pebax and CO2 gas, leading to enhanced gas separation properties.
Article
Engineering, Chemical
Guxu Wang, Xin Zhang, Mingjie Wei, Yong Wang
Summary: Fabricating mixed-matrix reverse osmosis (RO) membranes by incorporating nanocomposites is a promising strategy to enhance permeance performance without sacrificing ion rejection. The study reveals that the permeance enhancement in mixed-matrix membranes results from distinct factors related to the characteristics of graphene and graphene oxides, providing insights into the transport mechanism of water molecules through the membranes.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Dong Han Seo, Ming Xie, Adrian T. Murdock, Timothy van der Laan, Malcolm Lawn, Myoung Jun Park, Yun Chul Woo, Shafique Pineda, Jung Mi Hong, Mihaela Grigore, Samuel Yick, Zhaojun Han, Graeme Millar, Stephen Gray, Kostya Ostrikov, Ho Kyong Shon, Avi Bendavid
Summary: Membrane distillation is an emerging water purification technique that achieves high rejection and flux through temperature differential. Current membranes used in this process do not guarantee stable performance in harsh conditions.
Article
Green & Sustainable Science & Technology
Farhang Pazani, Mohammad Salehi Maleh, Mehrdad Shariatifar, Maisam Jalaly, Mohtada Sadrzadeh, Mashallah Rezakazemi
Summary: This paper comprehensively reviews the recent advances in the application of graphene-based nanosheets (GNSs) mixed matrix membranes (MMMs) for CO2 separation. The influences of GNSs characteristics on gas separation and strategies to enhance the performance of GNS-MMMs are discussed. The remaining challenges and future outlook of GNSs-based MMMs are also outlined.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2022)
Article
Engineering, Environmental
Hossein Namdar, Ali Akbari, Reza Yegani, Hossein Roghani-Mamaqani
Summary: Incorporating Asp-functionalized GO nanolayers into PVC nanocomposite membranes showed improved membrane flux, Cr removal efficiency, and fouling resistance. The electrostatic interaction between Cr and HA molecules played a significant role in membrane fouling and cleaning, with the formation of large HA-Cr complexes enhancing Cr removal through membrane filtration.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Review
Biochemistry & Molecular Biology
Abayomi Babatunde Alayande, Yesol Kang, Jaewon Jang, Hobin Jee, Yong-Gu Lee, In S. Kim, Euntae Yang
Summary: Membrane filters are useful in preventing the spread of airborne and waterborne pathogenic microorganisms, including viruses and bacteria, by physically separating them. By incorporating antiviral and antibacterial nanoparticles into the matrix of membrane filters, composite structures with the ability to kill pathogenic viruses and bacteria are created. These membranes have great potential for various applications.
Article
Chemistry, Multidisciplinary
Zhijie Zhang, Xiao Xiao, Yihao Zhou, Linjun Huang, Yanxin Wang, Qinglin Rong, Zhenyang Han, Huaijiao Qu, Zhijun Zhu, Shumao Xu, Jianguo Tang, Jun Chen
Summary: A high-performance graphene oxide membrane was constructed by introducing positively charged polyethylenimine-grafted GO to negatively charged GO nanosheets, showing high water permeance and precise molecular separation ability. The membrane exhibited excellent water permeance and organic removal selectivity, providing valuable insights for the development of smart nanofiltration technology.
Article
Engineering, Chemical
Sajjad Mohsenpour, Ahmed W. Ameen, Sebastian Leaper, Clara Skuse, Faiz Almansour, Peter M. Budd, Patricia Gorgojo
Summary: PIM-1 mixed matrix membranes (MMMs) fabricated with POSS and GO-POSS show higher CO2 permeability and good selectivity, surpassing the 2008 Robeson upper bound, and can slow down physical aging.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Polymer Science
Mariia Dmitrenko, Anastasia Chepeleva, Vladislav Liamin, Anton Mazur, Konstantin Semenov, Nikolay Solovyev, Anastasia Penkova
Summary: In this study, graphene oxide (GO) nanoparticles were introduced into a poly(2,6-dimethyl-1,4-phenylene oxide) (PPO) membrane to improve its pervaporation performance in the dehydration of ethylene glycol (EG). Through a series of experiments and tests, researchers successfully developed a PPO/GO composite membrane and found that the supported PPO/GO/MFFC membrane exhibited the best permeation properties in the dehydration of ethylene glycol.
Article
Engineering, Environmental
Weijian Shi, Chao Xu, Jiawei Cai, Shuping Wu
Summary: This review provides an up-to-date overview of the advancements in material selection and application research for mixed matrix membranes (MMMs), focusing on various materials, preparation methods, and applications. The future prospects and challenges in material selection and application research are also outlined.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Chemical
Qiao Liu, Narendra Basel, Lin Li, Nong Xu, Qiang Dong, Long Fan, Qing Wang, Aiqin Ding, Tonghua Wang
Summary: The influences of the pore structure, microtopography, and chemical structure of support membranes on the structure and performance of the COF composite membranes were studied. The TiO2@GO/PAN support membranes with hydrophilic and smooth top surface, homogenous pore distribution, and large pore size enabled easy infiltration of aqueous-phase solutions and the formation of a stable interface. The COF composite membranes exhibited excellent filtration performance with a thin crystalline layer on the support membrane.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Chemical
Marcello Pagliero, Antonio Comite, Omar Soda, Camilla Costa
Summary: This study investigates the use of photoactive mixed matrix membranes for direct solar membrane distillation. The addition of carbon-based fillers is found to improve the membrane performance, resulting in significant enhancements in the distillation flux under light irradiation.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Polymer Science
Mehdi Mahmoudian, Arezoo Abdali, Somayeh Mahmoudi Eskandarabadi, Ehsan Nozad, Mojtaba Enayati
Summary: By comparing the performance of different adsorbents, it was found that Cloisite 30B-Cu-MOF and PDADMAC exhibited the highest efficiency in adsorption desulfurization process.
Article
Environmental Sciences
M. Piri, E. Sepehr, A. Samadi, K. H. Farhadi, M. Alizadeh
Summary: The study found that the application of natural diatomite significantly reduced the exchangeable metal fractions in soil and increased the residual fractions, indicating that diatomite has a good effect in immobilizing heavy metals.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Marziyeh Piri, Ebrahim Sepehr, Abbas Samadi, Khalil Farhadi, Mohammad Alizadeh
Summary: The study shows that the sorption behavior of Pb, Cd, Zn, and Cu by diatomite is influenced by the initial concentration and pH values through response surface methodology. The Langmuir equation is a good fit for describing the adsorption data.
WATER ENVIRONMENT RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Zahed Ghelichkhah, Farzad Khorrami Dehkharghani, Samin Sharifi-Asl, I. B. Obot, Digby D. Macdonald, Khalil Farhadi, Mohammad Sadegh Avestan, Artin Petrossians
Summary: The study investigates the corrosion inhibition of Type 304 L SS in 0.5 M HCl by New Fuchsin using various techniques and models, showing that the inhibitor adopts a lateral configuration on the surface through interactions with the Cr2O3 surface involving aromatic rings and -NH2 groups.
Article
Polymer Science
Mehdi Mahmoudian, Mahmoud Ghasemi Kochameshki
Summary: Graphene oxide functionalized with hyperbranched epoxy was used as an additive in polyethersulfone membrane, resulting in improved microstructure and enhanced hydrophilicity. Characterization of the materials showed excellent fouling resistance and dye removal performance of the mixed matrix membranes.
Article
Chemistry, Applied
Samal Yeganeh-Zare, Khalil Farhadi, Saber Amiri
Summary: The study focuses on substituting apple juice concentrate with cheaper sweeteners and utilizes HPLC-RID analysis to detect adulteration. The results show that the glucose/fructose ratio and maltose content are the best indicators for detecting the adulteration of apple juice concentrate. A specific set of carbohydrates is used as discriminating factors to detect adulteration at a limit of 10%.
Article
Electrochemistry
Farzad Allahnouri, Khalil Farhadi, Hamideh Imanzadeh, Rahim Molaei, Habibollah Eskandari
Summary: In this study, Au-CuNPs@PSi nanocomposite was successfully fabricated and used as a modifier in SPCE for the simultaneous determination of COD and ACE with high sensitivity. The combination of PSi and metal nanoparticles provides a porous and high surface area with excellent electrical conductivity. The nanosensor exhibits low detection limits and wide linear ranges for COD and ACE, and performs well in real samples.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Environmental Sciences
A-R Sedaghatian, A. Marjani, A. H. Joshaghani, R. Mohammad-Rezaei
Summary: This study presents the use of a ternary composite, Fe3O4/GQDs-Chit, as a magnetic adsorbent for effective removal of Pb2+ from aqueous solutions. The adsorbent was characterized using various techniques, and the removal experiments were conducted to optimize the adsorbent amount, initial Pb2+ concentration, solution pH, and contact time. The results showed that Fe3O4/GQDs-Chit demonstrated high removal efficiency, following Langmuir isotherm model and pseudo-second-order kinetic model.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2022)
Article
Chemistry, Applied
Vahid Mirzajani, Hamed Nazarpour-Fard, Khalil Farhadi, Ali Ghobadian
Summary: Nano-CuO/NC/TEGDN/DAG nanocomposites were successfully prepared as convenient propellants, significantly altering the thermal behavior of the samples, reducing the activation energy of decomposition, and enhancing thermal stability.
PROPELLANTS EXPLOSIVES PYROTECHNICS
(2022)
Article
Chemistry, Applied
Neda Farnad, Khalil Farhadi
Summary: The use of green silver nanoparticles synthesized by Rosa damascena mill L. extract was demonstrated to control the encapsulation efficiency of riboflavin (Rf) in potato starch. The presence of AgNPs reduces the size of Rf nanocapsules, increases the encapsulation efficiency, and improves their thermal stability, antibacterial and antioxidant activities.
Article
Food Science & Technology
Neda Farnad, Khalil Farhadi
Summary: Anthocyanins extracted from Rosa damascena mill L. were successfully encapsulated into zein and starch nanocapsules using simple and complex coacervation methods, with higher pH values. The encapsulated nanocapsules showed high antioxidant activity and encapsulation efficiency.
JOURNAL OF FOOD SCIENCE
(2023)
Article
Engineering, Environmental
Rahimeh Alizadeh, Khalil Farhadi, Mohammad Taghi Ghaneian, Mohammad Hassan Ehrampoush, Sara Jambarsang, Mohammad Hossein Salmani, Ali Motahhari, Taher Ahmadzadeh Kokya
Summary: For the first time, the application of Pb/PbO2 anode and steel cathode in the electrochemical treatment of vinasse and alcohol factories wastewater has been investigated. The efficiency of the treatment setup was evaluated based on the removal percentage of COD, turbidity, and color. The results showed high reduction values under optimum conditions.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Mohammad Gheshlaghi, Khalil Farhadi, Rahele Tahmasebi
Summary: Polycyclic aromatic hydrocarbons (PAHs) have been listed as hazardous compounds due to their toxicity. This study developed a solid phase microextraction (SPME) fiber based on a highly porous monolithic nanofiber nanocomposite and designed a new sampling chamber for the measurement of PAHs in indoor spaces.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Analytical
Ali Hassanzadeh, Ebrahim Ghorbani-Kalhor, Khalil Farhadi, Jafar Abolhasani
Summary: This study evaluated the feasibility of using GO/Na2SiO3 nanocomposite as an efficient adsorbent for the removal of malachite green dye. The nanosorbent was characterized and optimized, and the adsorption process was found to follow pseudo-second order kinetic models and Freundlich isotherm. Thermodynamic analysis showed that the adsorption process was spontaneous and exothermic. The prepared adsorbent also showed good reusability without a significant decrease in removal efficiency.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH
(2022)
Article
Veterinary Sciences
Mohammad Mahdian-Dehkordi, Farshid Sarrafzadeh-Rezaei, Mazdak Razi, Mehdi Mahmoudian
Summary: The Chitosan/Polyvinyl Alcohol nanofiber scaffold with borax as a cross-linking agent exhibited excellent structural and biomechanical properties, making it a promising candidate for tissue engineering applications.Further in vivo trials are needed to evaluate their side effects and advantages.
VETERINARY RESEARCH FORUM
(2021)