Article
Engineering, Environmental
Yi Wang, Qiang Li, Gongwen Tang, Na Zhang
Summary: The membrane based separation technology has been widely used in water treatment due to its high efficiency and low energy consumption. Carbon based nanomaterials enhance the performance of non-polyamide membranes, providing excellent separation properties. This paper reviews the application of carbon based nanomaterials in various non-polyamide membranes and discusses their effects on membrane performance.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Engineering, Environmental
Huihui Zhao, Linyan Yang, Xueming Chen, Mei Sheng, Guomin Cao, Lankun Cai, Shujuan Meng, Chuyang Y. Tang
Summary: The study showed that bromine has a significant impact on the permeability performance and physicochemical properties of polyamide membranes under different bromination conditions. Lower concentrations of bromine exposure resulted in increased negative charge and hydrophobicity on the membrane surface, leading to reduced water and solute permeabilities, while higher concentrations of bromine exposure further increased hydrophobicity with minor reductions in water and solute permeabilities. The different effects of bromine on membrane properties were attributed to its incorporation efficiency and properties compared to chlorine.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Polymer Science
Seham S. Alterary, Raya M. Alyabes, Ahmed A. Alshahrani, Monirah A. Al-Alshaikh
Summary: Reverse osmosis is the most widely used strategy in membrane technology. This study focuses on improving the performance of thin-film membranes by modifying the surface characteristics of support layers. Different membranes were fabricated using interfacial polymerization, with varying concentrations of multiwalled carbon nanotubes and ethanol. The results showed that the membrane with a selective layer of PA-EtOH 30% exhibited the best salt rejection, while the membrane with PA-MWCNTs 0.15% had the lowest salt rejection due to its hydrophobic nature.
Review
Biochemistry & Molecular Biology
Steve F. Nitodas, Mrinaleni Das, Raj Shah
Summary: This paper discusses the recent applications of carbon nanotubes (CNTs) in membrane technology and their impact on water purification, desalination, gas separations, and energy storage. Future trends include improving large-scale production processes and addressing environmental and health-related concerns.
Article
Chemistry, Multidisciplinary
Da-Chi Yang, Richard J. J. Castellano, Ricardo Prada Silvy, Sathish K. K. Lageshetty, Robert F. F. Praino, Francesco Fornasiero, Jerry W. W. Shan
Summary: This study reports on the first macroscopic membranes with vertically oriented, subnanometer carbon nanotube (CNT) pores, which show enhanced water flow. The membranes, made using a scalable, solution-based method, exhibit fast pressure-driven water transport with up to 10^5-fold enhancement compared to conventional flow. The results also show that the hydrodynamic slip lengths increase with decreasing nanotube diameter, suggesting that water transport in small-diameter CNTs is dominated by entrance resistance.
Article
Engineering, Chemical
Dejun Feng, Xianhui Li, Zhangxin Wang
Summary: Membrane wetting, fouling, and scaling are three challenges in membrane distillation (MD). This study compares an omniphobic membrane and a Janus membrane in MD experiments with different feeds, and elucidates their working mechanisms. Results show that both membranes can resist wetting but through different mechanisms. The omniphobic membrane is prone to oil fouling but exhibits excellent scaling resistance, while the Janus membrane can mitigate fouling but is susceptible to scaling.
JOURNAL OF MEMBRANE SCIENCE
(2022)
Article
Engineering, Environmental
Mitra Bahrami Eynolghasi, Toraj Mohammadi, Maryam Ahmadzadeh Tofighy
Summary: For the first time, hydrophobic carbon nanotubes were used to fabricate polystyrene/CNTs mixed matrix membranes for vacuum membrane distillation application. The membranes exhibited increased porosity, average pore size, and improved mechanical properties compared to neat polystyrene membranes. The hydrophobicity and unique physicochemical properties of cyclohexanol-based CNTs improved the performance of the membranes in VMD application.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Review
Engineering, Chemical
Sebastian Leaper, Ahmed Abdel-Karim, Patricia Gorgojo
Summary: Membrane distillation is a thermal-based separation technique with the potential to treat various water types, facing challenges like moderate permeate flux and decline in separation performance. The use of carbon nanomaterials in MD has improved membrane performance and driven research interests.
FRONTIERS OF CHEMICAL SCIENCE AND ENGINEERING
(2021)
Article
Engineering, Chemical
Baolei Xie, Guorong Xu, Yuhui Jia, Lukai Gu, Qun Wang, Nazish Mushtaq, Bowen Cheng, Yunxia Hu
Summary: The study demonstrates that an optimal match of CNTs loading with substrate properties can enhance the specific surface area of the membrane, resulting in improved flux and salt rejection. Under optimized conditions, CNT-enhanced PTFE membrane shows >99.9% salt rejection and 33.2 LMH water flux in MD, which is three times higher than that of pristine PTFE membrane in direct contact membrane distillation with a temperature difference of 40 degrees C.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Chemistry, Physical
Ying Zhang, Jingyu Wu, Shuaihua Zhang, Ningzhao Shang, Xiaoxian Zhao, Saad M. Alshehri, Tanir Ahamad, Yusuke Yamauchi, Xingtao Xu, Yoshio Bando
Summary: In this study, a nitrogen-doped carbon heterostructure with well-designed functionalities was synthesized through the use of a MOF-on-MOF nanoarchitecture. The resulting material exhibited high salt adsorption capacity, rapid adsorption rate, and excellent cycling stability, highlighting the significance of carbon-carbon heterostructures in CDI applications and the importance of MOF-on-MOF nanoarchitectures in nanomaterials synthesis chemistry.
Article
Nanoscience & Nanotechnology
Mohammad Mehrdad, Ali Moosavi
Summary: This study demonstrates that graphene-like carbon nitride membranes, such as g-C4N3, g-C6N6, and g-C3N4 single-layers, show high water desalination performance with high water permeability and strong ion rejection capabilities. The open or closed state of pores can be altered by applying tensile stress, and the g-C6N6 membrane emerges as the best purification membrane with significantly higher water permeability compared to other one-atom-thick membranes.
Article
Multidisciplinary Sciences
Maria Di Vincenzo, Alberto Tiraferri, Valentina-Elena Musteata, Stefan Chisca, Mihai Deleanu, Francesco Ricceri, Didier Cot, Suzana P. Nunes, Mihail Barboiu
Summary: Membrane-based technologies play a crucial role in water purification and desalination. Inspired by biological proteins, artificial water channels (AWCs) are introduced to enhance the permeability/selectivity balance in desalination processes. Optimal combinations of AWCs with specific monomers exhibit remarkable performances in reverse osmosis membranes, significantly improving water permeance while maintaining high salt rejection rates.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Article
Environmental Sciences
Poonam Kumari, Prashant Upadhyay, Kumud Malika Tripathi, Ragini Gupta, Vaibhav Kulshrestha, Kamlendra Awasthi
Summary: In this study, carbon nano onions (CNO)-based sulphonated poly(ethersulfone) (SPES) composite membranes were synthesized for water desalination by varying CNO content in the SPES matrix. The physico- and electrochemical properties of the nanocomposite membranes were evaluated and compared to pristine SPES. The integration of CNO nanoparticles into the SPES matrix enhanced the ion-conducting channels, resulting in improved water uptake, ion exchange membrane, and ionic conductivity values.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Huijie Wei, Shujing Zhao, Xiaoyuan Zhang, Bianying Wen, Zhiqiang Su
Summary: Water scarcity is a significant challenge for humanity, and desalination is a promising solution. Nanomembrane technology, particularly focusing on CDI, shows great potential for seawater desalination, offering cost-effective and industrial-scale commercial options while addressing energy and investment concerns.
MATERIALS TODAY ENERGY
(2021)
Article
Engineering, Chemical
Dongchuan Xu, Wenhui Wang, Mingyue Zhu, Chaolin Li
Summary: This study introduces a desalination battery technology with high desalination capacity, low energy consumption and mild operating conditions. The use of Ag@10%CNTs composite as an excellent chloride storage electrode enhances the desalination capacity. Furthermore, a full desalination battery is constructed, demonstrating excellent desalination performance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Engineering, Chemical
Juan L. Fajardo-Diaz, Aaron Morelos-Gomez, Rodolfo Cruz-Silva, Akito Matsumoto, Yutaka Ueno, Norihiro Takeuchi, Kotaro Kitamura, Hiroki Miyakawa, Syogo Tejima, Kenji Takeuchi, Koichi Tsuzuki, Morinobu Endo
Summary: The robust nanocomposite reverse osmosis (RO) module, assembled using crosslinked polyamide (PA) and carbon nanotubes (CNT) membranes, showed high salt rejection rates and excellent antifouling behavior in laboratory tests using bovine serum albumin in simulated seawater. The industrial vessel built with CNT-PA nanocomposite modules demonstrated superior antifouling performance and stable operation for over 100 days in pilot-plant tests with real seawater, compared to a commercial antifouling vessel. These CNT-PA nanocomposite RO antifouling modules are ideal for desalination plants, requiring less maintenance and promoting green desalination technology.
Article
Chemistry, Multidisciplinary
Ryan Selhorst, Zhuohang Yu, David Moore, Jie Jiang, Michael A. Susner, Nicholas R. Glavin, Ruth Pachter, Mauricio Terrones, Benji Maruyama, Rahul Rao
Summary: Layered Transition Metal Dichalcogenides (TMDs) are important materials with a diverse range of optoelectronic properties. This study investigates the spatial tailoring of TMDs through electron-beam patterning, achieving high resolution and demonstrating potential for nanoscale functionalization. The modulated properties were found to be dependent on various parameters, and the results were confirmed through spectroscopic analysis and density functional theory modeling. This research provides a robust method for property modulation and functionalization of TMDs at the nanoscale.
Editorial Material
Chemistry, Physical
Nianjun Yang, Mauricio Terrones
Article
Chemistry, Multidisciplinary
Min Fu, Wei Chen, Yu Lei, Hao Yu, Yuxiao Lin, Mauricio Terrones
Summary: A general biomimetic mineralization synthetic strategy was proposed to synthesize ferrite quantum dot/graphene heterostructures. The optimized heterostructure exhibited exceptional capacitance and cycling performance, indicating its potential as advanced electrode materials for supercapacitors.
ADVANCED MATERIALS
(2023)
Article
Engineering, Chemical
Aaron Morelos-Gomez, Kunio Kondo, Kazuhiro Omori, Yuuki Kamei, Masumi Kuritani, Taiki Irwansyah, Taiki L. Yokokawa, Juan Fajardo-Diaz, Rodolfo Cruz-Silva, Morinobu Endo
Summary: This study investigated the use of fullerene as an additive for lubricant oils to extend their operational lifetime. The addition of toluene increased the ratio of C-60/C-70 and cluster size. Results showed that fullerene addition reduced the oxidation rate and friction coefficient, indicating higher antioxidation. Thus, fullerenes could be a promising additive for lubricant oils.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
Katherine L. Thompson, Rowan R. Katzbaer, Mauricio Terrones, Raymond E. Schaak
Summary: Ion exchange reactions of colloidal nanoparticles allow for modification of composition while maintaining morphology and crystal structure, which is crucial for tuning properties and producing otherwise inaccessible materials. In this study, tellurium anion exchange of copper selenide nanoparticles was conducted, resulting in the formation of solid solutions with tunable compositions. The post-exchange reactivity of the solid solution nanoparticles, including transformation of composition, surface chemistry, and colloidal dispersibility, was observed due to the apparent metastability of the product.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Physical
Jie Fang, Suichu Huang, Kan Yao, Tianyi Zhang, Mauricio Terrones, Wentao Huang, Yunlu Pan, Yuebing Zheng
Summary: Tunable exciton-photon couplings have been demonstrated in monolayer TMDs, showing strong bright-exciton-photon couplings and revealing the novel interactions between bright and dark exciton-photon hybrids in a single optical cavity. The waveguide mode can be tuned in wavelengths by controlling the spacer thickness, and the relative contribution from the antenna mode coupled with dark excitons can be dynamically enlarged by increasing the excitation angle. This study opens new possibilities in tunable QED and provides insights into the coexistence of bright and dark exciton-photon couplings.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Polymer Science
Andres Castro-Beltran, Clemente G. Alvarado-Beltran, Jesus F. Lara-Sanchez, Wencel de la Cruz, Felipe F. Castillon-Barraza, Rodolfo Cruz-Silva
Summary: The adhesion of polypyrrole to indium-tin oxide electrodes was enhanced by adding pre-hydrolyzed alkoxysilanes to the electrodeposition media. The pyrrole oxidation and film growth rates were investigated by potentiostatic polymerization in acidic media. The morphology and thickness of the films were characterized using contact profilometry and surface-scanning electron microscopy. Fourier-transform infrared spectroscopy and X-ray photoelectron spectroscopy were employed to analyze the bulk and surface semiquantitative chemical composition. Scotch-tape adhesion test revealed a significant improvement in adhesion with both alkoxysilanes, suggesting the formation of siloxane material and in situ surface modification of the transparent metal oxide electrode.
Article
Chemistry, Multidisciplinary
Pouria Fattahi, Yin-Ting Yeh, Tiankai Zhao, Mousa Younesi, Changjin Huang, Mauricio Terrones, Siyang Zheng, Justin L. Brown, Dan Dongeun Huh, Sulin Zhang, Peter J. Butler
Summary: Endothelial cells (ECs) exhibit different shapes and mechanical properties depending on the flow in their environment, and these factors affect the uptake of therapeutic nanoparticles (NPs). Cells with elongated shape and higher stiffness show higher uptake of NPs, while those with polygonal shape and lower stiffness show lower uptake. The elongated cells in areas of high laminar shear exhibit less NP uptake compared to nonelongated cells in chaotic, lower shear areas. These findings suggest that manipulating the morphology and mechanical properties of ECs can enhance the uptake of therapeutic NPs for preventing atherosclerosis.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Physical
Shannon McGee, Andres Fest, Cierra Chandler, Nabila N. Nova, Yu Lei, James Goff, Susan B. Sinnott, Ismaila Dabo, Mauricio Terrones, Lauren D. Zarzar
Summary: In this study, we synthesized multimetal catalysts using a laser synthesis method and found that adding a small amount of chromium to the catalyst can enhance the hydrogen evolution efficiency. This research provides new insights for future electrocatalytic design.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Aaryan Oberoi, Ying Han, Sergei P. Stepanoff, Andrew Pannone, Yongwen Sun, Yu-Chuan Lin, Chen Chen, Jeffrey R. Shallenberger, Da Zhou, Mauricio Terrones, Joan M. Redwing, Joshua A. Robinson, Douglas E. Wolfe, Yang Yang, Saptarshi Das
Summary: This study presents a three-pronged approach to achieve high-performance p-type FETs based on synthetic WSe2, including contact engineering, channel length scaling, and monolayer doping. By using Pd as the contact metal and monolayer WOxSey as the p-type dopant, the ON-state performance of the FETs was significantly improved and the contact resistance was reduced.
Article
Engineering, Chemical
J. L. Fajardo-Diaz, K. Takeuchi, A. Morelos-Gomez, R. Cruz-Silva, A. Yamanaka, S. Tejima, K. Izu, S. Saito, I. Ito, J. Maeda, M. Endo
Summary: Nanocomposite membranes based on CNTs and CNFs integrated into a PA membrane showed high boron rejection and permeation. The chemical structure and surface morphology played significant roles in boron rejection, while pore structure affected both sodium chloride and boron rejections. Molecular dynamic simulations revealed that CNF and CNT structures suppressed hydrogen bonding between PA matrix and boric acid, negatively affecting diffusion and rejection. These findings contribute to a better understanding of boron rejection mechanisms and the development of PA membranes.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jie Fang, Kan Yao, Mingsong Wang, Zhuohang Yu, Tianyi Zhang, Taizhi Jiang, Suichu Huang, Brian A. Korgel, Mauricio Terrones, Andrea Alu, Yuebing Zheng
Summary: In this study, we achieved on-demand exciton-polariton emission from a wide range of TMDs at room temperature by hybridizing excitons with broadband Mie resonances. The system demonstrated stable polaritonic photoluminescence and multiple Rabi splittings.
Article
Materials Science, Multidisciplinary
Gowtham Polumati, Barbara A. Muniz Martinez, Chandra Sekhar Reddy Kolli, Venkatarao Selamneni, Mario Flores Salazar, David Emanuel Sanchez, Andres Fest Carreno, Mauricio Terrones, Andres De Luna Bugallo, Parikshit Sahatiya
Summary: This work demonstrates the band-type engineering and charge transport mechanism of vertically stacked monolayers of MoS2-ReS2 under visible light illumination. The study investigates the impact of stacking order on band alignment and validates the formation of the vertically stacked heterostructure. The results show the significant role of stacking configuration in the optoelectronic properties.
Article
Chemistry, Multidisciplinary
Victor Carozo, Bruno R. Carvalho, Syed Hamza Safeer, Leandro Seixas, Pedro Venezuela, Mauricio Terrones
Summary: We investigated the electronic and phonon properties of few-layered Bi2Te3 systems with different layer thicknesses using Raman spectroscopy and first-principles calculations. The main Raman modes showed frequency dispersion and changes in intensity and lineshape with the variation of layer thickness and excitation energy. Resonant Raman conditions were reached for certain thicknesses due to van Hove singularities at the electronic density of states. Our results demonstrate the significant influence of layer numbers on the Raman scattering mechanics in Bi2Te3 systems.
NANOSCALE ADVANCES
(2023)