Article
Engineering, Chemical
Carlos Alberto Augusto Sanchez Quinones, Vicente Ismael Agueda Mate, Jose Antonio Delgado Dobladez, Silvia Alvarez-Torrellas, Marcos Larriba, Maria Martin-Martinez
Summary: In order to fulfill the Paris Agreement, CO2 capture technologies must be developed to reduce Green House Gas emissions. Adsorption is considered a viable technology due to its mild conditions. Selective sorbents with high CO2 adsorption capacities are needed. This study used branched poly-ethylenimines (PEI) with different average molecular weights, agglomerated with silica at different weight percentages. Adsorption was measured and kinetic parameters were estimated. The results showed that the materials produced were selective and had potential use in adsorption processes, with the sample of the lowest average molecular weight having the highest adsorption capacity.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2023)
Article
Chemistry, Physical
Syeda Saba Fatima, Azry Borhan, Muhammad Ayoub, Noraini Abd Ghani
Summary: The article emphasizes the importance of CO2 capture and sequestration, comparing the advantages and disadvantages of different methods, as well as the application prospects of ILs in absorption.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Engineering, Environmental
Wanlin Gao, Michalis A. Vasiliades, Constantinos M. Damaskinos, Meng Zhao, Wenqi Fan, Qiang Wang, Tomas Ramirez Reina, Angelos M. Efstathiou
Summary: By adding molten salt modifiers, the CO2 uptake of MgO-based CO2 adsorbents can be increased, with three different processes identified for the interaction of molten salt-promoted MgO with CO2 at 300 degrees C. Transient kinetic studies coupled with mass spectrometry provided a thorough understanding of the CO2-capturing performance and its significant implications for future practical designs of precombustion CO2 capture.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Thermodynamics
Gautam, Satyabrata Sahoo
Summary: The current research focuses on characterizing and comparing the physiochemical properties of seven commercially available activated carbons (ACs) as adsorbents for CO2 capture. The study found that the selected ACs have high micro and ultra-micro porosity, making them suitable for post-combustion CO2 capture. The study also estimated important thermodynamic properties of adsorption and confirmed that the selected ACs are suitable for various gas sorption applications.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Thermodynamics
Gautam, Satyabrata Sahoo
Summary: The research focuses on characterizing and comparing seven commercially available activated carbons as adsorbents for CO2 capture, revealing their suitability for various gas sorption applications and providing valuable properties for actual system design.
THERMAL SCIENCE AND ENGINEERING PROGRESS
(2022)
Article
Chemistry, Physical
Fa-Qian Liu, Xin Liu, Lishui Sun, Rongxun Li, Chun-Xiao Yin, Bozhen Wu
Summary: This study investigated the MXene-supported adsorbents prepared through two strategies for excellent long-term stability and high efficiency in CO2 capture. The results showed that the MXene-supported adsorbents exhibited outstanding performance in working capacity, cycling stability, and mechanical stability, providing a promising solution for CO2 capture.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
Review
Chemistry, Physical
Tetiana Tatarchuk, Liubov Soltys, Wojciech Macyk
Summary: The global development of industry and agriculture has led to the contamination of aquatic environments with pharmaceuticals. The uncontrolled release of pharmaceuticals into water poses a threat to human health and the environment. Adsorption with magnetic nanoparticles is an effective method for removing pharmaceuticals from wastewater. This comprehensive review focuses on the use of magnetic nanoparticles for the removal of antibiotics and nonsteroidal anti-inflammatory drugs from aqueous environments. The study discusses the interaction between the adsorbent and the adsorbate and summarizes the factors that affect adsorption efficiency.
JOURNAL OF MOLECULAR LIQUIDS
(2023)
Article
Materials Science, Multidisciplinary
Pablo M. Cuesta Zapata, Jose F. Miranda, Francisco Orellana, Elio Gonzo, Norberto A. Bonini
Summary: Two Cu/SiO2 mesoporous materials (Cu-MCM-41) were synthesized by ion exchange and sol-gel methods respectively. The material synthesized by sol-gel method showed higher specific surface area and uniform mesoporous structure compared to the material synthesized by ion exchange method.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Applied
Bianfeng Yang, Cong Wang, Xu Ji, Xirong Yue, Guanchao Lv, Mengqi Wang
Summary: The composite adsorption material ACF-silica sol-LiCl (ASL), prepared by impregnating activated carbon fiber (ACF) with silica sol and LiCl, is proven to enhance the water vapor adsorption performance of ACF. Silica sol solidifies the soft ACF and improves adhesion area for LiCl, which effectively increases the water vapor adsorption performance. The adsorption capacity of ASL steadily increases with relative pressure and exhibits higher dynamic water absorption rate and adsorption rate coefficient than ACF.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Kai Wu, Qing Ye, Lanyang Wang, Fanwei Meng, Hongxing Dai
Summary: By loading PEI and LDH onto the surface of SBA-15, the composite material with an ordered porous structure showed excellent CO2 adsorption performance, which was attributed to its high BET surface area, abundant basic sites, and fast adsorption kinetics.
APPLIED CLAY SCIENCE
(2022)
Article
Engineering, Environmental
Marcos E. Peralta, Daniel O. Martire, M. Sergio Moreno, Maria E. Parolo, Luciano Carlos
Summary: This study developed new magnetic silica-based nanoadsorbents and evaluated their potential application in removing various organic pollutants. The results showed that MMST-Ph was more efficient in adsorbing PAHs and aliphatic hydrocarbons, demonstrating the promising potential of surface-modified magnetic silica nanoparticles for water pollution control.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Energy & Fuels
Jiamei Huang, Jiali Bai, Muslum Demir, Xin Hu, Zhuohan Jiang, Linlin Wang
Summary: Porous carbons with abundant availability and tunable physical properties have attracted tremendous interest for CO2 capture application. However, their insufficient CO2 utilization performance due to the poor active sites on their surface is a drawback. In this study, we report the fabrication of N-rich porous carbon derived from urea-formaldehyde resin via a two-step synthetic route involving physical carbonization and KOH activating. The optimized sample with 9.87 wt% N exhibits notable CO2 uptake capacities and high selectivity efficiency, attributed to advanced textural properties and incorporation of nitrogen into carbon surfaces.
Review
Chemistry, Multidisciplinary
Thien S. Nguyen, Nesibe A. Dogan, Haeseong Lim, Cafer T. Yavuz
Summary: The development of porous solid materials with tunable amine content is necessary for efficient CO2 capture, and unifying both sorbents in one system can address regeneration issues.
ACCOUNTS OF CHEMICAL RESEARCH
(2023)
Article
Engineering, Chemical
Quyen Thi Vu, Firoz Alam Chowdhury, Hidetaka Yamada, Katsunori Yogo
Summary: In this study, the commercial polyamine tetraethylenepentamine (TEPA) was separated and purified, and the influence of different components of TEPA on the CO2 adsorption performance and stability was investigated. Polyamines with piperazine rings exhibited higher amine efficiency, regeneration ability, and O-2 resistance. The results provide a new approach for the development of novel effective and stable amine solid sorbents for CO2 capture.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Review
Chemistry, Multidisciplinary
Anuradha Sharma, Jitender Jindal, Anuj Mittal, Kavitha Kumari, Sanjeev Maken, Naveen Kumar
Summary: Environmental pollution is a serious issue, particularly due to fossil fuel pollution increasing atmospheric CO2 levels. The use of carbon capture and storage technologies, as well as adsorption techniques with carbon materials, show promise for addressing this issue. Factors such as micropore volume, surface area, and introduction of basic functional groups play crucial roles in CO2 adsorption.
ENVIRONMENTAL CHEMISTRY LETTERS
(2021)
Article
Green & Sustainable Science & Technology
D. Martinez-Diaz, P. Leo, R. Sanz, A. Carrero, J. A. Calles, D. Alique
Summary: The study highlights that the manufacturing of Pd-based membranes leads to significant environmental impacts, including climate change, human toxicity, acidification, freshwater ecotoxicity, metal depletion, and fossil fuel resources depletion, with palladium deposition being the step with the highest impacts. The electricity mix of the country where the factory is located plays a critical role in minimizing environmental impacts, making European countries more favorable for membrane fabrication. Furthermore, incorporating a CeO2 intermediate layer noticeably reduces the necessary amount of Pd, thus decreasing associated environmental impacts.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Applied
Alejandro Perez, Maria Orfila, Maria Linares, Raul Sanz, Javier Marugan, Raul Molina, Juan A. Botas
Summary: This study demonstrates that the pH value plays a critical role in the stability and performance of aluminum-based perovskite materials for hydrogen production. Perovskites synthesized at acidic pH exhibit irreversible changes in crystalline structure and are unable to maintain stable hydrogen production, while those synthesized at basic pH show stable performance. Among the materials tested, nickel-based La0.8Al0.2MeO3-6 perovskite exhibited the best hydrogen productivity per cycle and showed high solar to fuel efficiency.
Article
Chemistry, Physical
D. Sanz-Villanueva, D. Alique, A. J. Vizcaino, J. A. Calles, R. Sanz
Summary: This study investigates the use of TiO2-based particles as an intermediate layer for the fabrication of fully dense Pd membranes by Electroless Pore Plating. The results show that doping the ceramic particles with Pd nuclei prior to incorporation onto the porous support can reduce the Pd thickness and improve mechanical stability. However, some palladium penetration is observed in the porous structure, which affects the H-2 permeance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Editorial Material
Cell Biology
Rafael A. Garcia-Munoz, Joseph McConnell, Victoria Morales, Raul Sanz
NEURAL REGENERATION RESEARCH
(2022)
Article
Polymer Science
Camilla Noe, Michael Zanon, Amaya Arencibia, Maria-Jose Lopez-Munoz, Nieves Fernandez de Paz, Paola Calza, Marco Sangermano
Summary: New photocurable biobased hydrogels derived from chitosan and gelatin were designed and tested as sorbents for As(V) and Pb(II) removal from water. The modified hydrogels showed high swelling capability and demonstrated potential as effective sorbents for heavy metal removal from polluted waters.
Article
Biochemistry & Molecular Biology
David Martinez-Diaz, Valeria Michienzi, Jose Antonio Calles, Raul Sanz, Alessio Caravella, David Alique
Summary: This study explores the incorporation of CeO2 and Pd films onto the internal side of PSS tubes for additional protection. The prepared membranes demonstrate excellent mechanical resistance and similar performance to those prepared on the external surface. The membranes exhibit good conformity to Sieverts' law, with high H-2 permeance and complete ideal perm-selectivity. The permeate fluxes decrease with dilution and temperature in H-2 mixtures, and the presence of CO further inhibits the flux, but it can be completely recovered by feeding pure hydrogen again.
Article
Polymer Science
Patricio A. Sobarzo, Alain Tundidor, Eloy S. Sanz-Perez, Claudio A. Terraza, Eva M. Maya
Summary: A new series of melamine-based porous polyaminals containing thiophene or furan moieties were synthesized and characterized. These polyaminals showed high nitrogen content and porous structures. Some of them exhibited good catalytic performance in the conversion of CO2 and the preparation of zinc complexes, operating under lower reaction conditions.
EUROPEAN POLYMER JOURNAL
(2022)
Article
Energy & Fuels
L. Briones, C. M. Valverde-Pizarro, I Barras-Garcia, C. Tajuelo, E. S. Sanz-Perez, R. Sanz, J. M. Escola, J. Gonzalez-Aguilar, M. Romero
Summary: This study proposes a method of dip-coating mixed Ca(OH)(2)/gamma-Al2O3 pellets with silica and Al-MCM-41 gels to improve the hardness and structural integrity of pure Ca(OH)(2) pellets in the CaO + H2O <-> Ca(OH)(2) system. The results show that this method can increase the hardness of the pellets and preserve the structural integrity after dehydration/hydration cycles.
JOURNAL OF ENERGY STORAGE
(2022)
Proceedings Paper
Physics, Atomic, Molecular & Chemical
Melissa Y. Huertas-Chambilla, Maria F. Moyano-Arocutipa, Jacquelyne Y. Zarria-Romero, Noemi-Raquel Checca-Huaman, Edson C. Passamani, Amaya Arencibia, Juan A. Ramos-Guivar
Summary: In this study, functionalized multiwall carbon nanotubes were synthesized with maghemite nanoparticles and characterized using various methods. The results showed that this nanohybrid has unique surface features and great potential for applications in magnetic remediation processes. Acute toxicity evaluations demonstrated that the nanohybrid had minimal biological effects on Daphnia magna biomarkers. However, long-term applications may have some impact on reproductive rates.
HYPERFINE INTERACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Maria Fernanda Moyano-Arocutipa, Jacquelyne Y. Zarria-Romero, Melissa Ysabel Huertas-Chambilla, Noemi-Raquel Checca-Huaman, Jose Pino, Edson C. Passamani, Amaya Arencibia, Juan A. Ramos-Guivar
Summary: Controlled-size maghemite (gamma-Fe2O3) nanoparticles (NPs) were functionalized with zeolite 5A and cetyltrimethylammonium bromide (CTAB) by the co-precipitation method. The magnetic remediation properties of the nanomaterials were characterized, and acute toxicity tests were conducted on Daphnia magna to assess their impact. The nanohybrids showed higher toxicity compared to bare gamma-Fe2O3 NPs and caused significant physiological changes and malformations in the organisms.
CRYSTAL GROWTH & DESIGN
(2023)
Article
Biochemistry & Molecular Biology
Elisa Gaggero, Maria Jose Lopez-Munoz, Maria Cristina Paganini, Amaya Arencibia, Stefano Bertinetti, Nieves Fernandez de Paz, Paola Calza
Summary: This study investigated the removal of four Contaminants of Emerging Concern, two odorous compounds, and Hg(II) using ZnO-based materials doped or co-doped with Ce and Cu under simulated solar radiation. The efficiency of the photocatalysts was assessed in different water matrices, and they successfully degraded the mixture of contaminants in just 1 hour. Complete mineralization was achieved in a few hours, and experiments conducted in actual aquaculture water confirmed the efficiency and versatility of the synthesized materials.
Article
Chemistry, Physical
Jorge Plaza, Amaya Arencibia, Maria Jose Lopez-Munoz
Summary: This study investigated the influence of temperature and time on the exfoliation of g-C3N4 using a full factorial design. The results showed that the optimal conditions for obtaining materials with excellent photocatalytic performance were 450℃ for temperature and 6 hours for time. An economic evaluation also demonstrated that these conditions could minimize expenses without compromising photocatalytic activity. Detailed characterization analysis suggested that the enhanced photocatalytic performance induced by exfoliation was mainly attributed to the increased surface area and improved separation of photogenerated charge pairs.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Engineering, Chemical
M. Salome Macedo, N. Acha Uriarte, M. A. Soria, Luis M. Madeira, J. A. Calles, R. Sanz, D. Alique
Summary: This study investigates the use of different sizes of CeO2 particles to generate an intermediate layer and facilitate the deposition of a thin Pd-film on H-2 selective membranes. Membrane M demonstrates the best performance in terms of H-2 permeance, and the stability of the membranes is high regardless of the particle size.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Maria Erans, Eloy S. Sanz-Perez, Dawid P. Hanak, Zeynep Clulow, David M. Reiner, Greg A. Mutch
Summary: This article reviews the latest developments in direct air capture (DAC) technology and proposes research challenges in process technology, techno-economic, and socio-political domains.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Physical
M. Alonso-Doncel, A. Peral, C. Ochoa-Hernandez, R. Sanz, D. P. Serrano
Summary: The use of organosilanes as mesopore generating agents produces hierarchical zeolites with enhanced accessibility and outstanding catalytic properties. The catalytic behavior of the embryonic zeolites for LDPE cracking is significantly affected by changes undergone during synthesis, showing increasing plastic conversion from 25 to 85%. Different types of evolving zeolite embryos are envisaged, exhibiting hybrid configurations and crystal growth proceeds partially hindered by grafted organosilane molecules, leading to the generation of globular particles with hierarchical porosity.
JOURNAL OF MATERIALS CHEMISTRY A
(2021)
