Article
Environmental Sciences
J. McGinley, M. G. Healy, P. C. Ryan, P. -E. Mellander, L. Morrison, J. Harmon O'Driscoll, A. Siggins
Summary: This study investigates the adsorption characteristics of five herbicides onto raw and pyrolysed waste materials from an industrial setting. The results show that granulated activated carbon exhibits the highest herbicide removal efficiency and the adsorption process involves both physical and chemical mechanisms. The Freundlich model best describes the adsorption of herbicides onto heterogeneous surfaces.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Physical
Ismaila Olalekan Saheed, Wen -Da Oh, Faiz Bukhari Mohd Suah
Summary: This study investigated the removal of hydrophilic imidazolium-based ionic liquid from aqueous solution using chitosan-activated carbon composite (CH-AC). The experimental data analyzed using Langmuir and Freundlich isotherms fitted best into Langmuir model, and the adsorption capacity of CH-AC for [BMIM][Br] was calculated to be 12.17 mg/g. Adsorption kinetics fitted into pseudo-second order model.
COLLOID AND INTERFACE SCIENCE COMMUNICATIONS
(2021)
Article
Biochemistry & Molecular Biology
Martyna Jurkiewicz, Robert Pelech
Summary: This study investigated the adsorption process of o-DCB onto ACs and modified CNTs from the aqueous phase. It was found that carbon adsorbents are effective in removing o-DCB, with ACs showing higher regenerative abilities compared to CNTs. The modifications of CNTs improved their adsorption properties for o-DCB, but impacted the effectiveness of the regeneration process.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Ali Nematollahzadeh, Aziz Babapoor, Seyyed Mojtaba Mousavi, Ayat Nuri
Summary: By synthesizing and characterizing Fe3O4/PTh composite nanoparticles, it was found that they exhibit high efficiency and reusability as adsorbents for removing nitrobenzene.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Environmental Sciences
Prabu Deivasigamani, P. Senthil Kumar, Sathish Sundaraman, Michael Rahul Soosai, A. Annam Renita, M. Karthikeyan, Nessipkhan Bektenov, Omirserik Baigenzhenov, D. Venkatesan, J. Aravind Kumar
Summary: This study successfully synthesized coffee husk activated carbon through chemical modification and demonstrated its effectiveness in removing Methylene blue dye from wastewater. The experimental variables, including dosage, pH, temperature, and contact time, were carefully adjusted to optimize the adsorption process. The results showed that chemical activation enhanced the adsorptive potential of coffee husk by increasing the number of pores and roughness.
ENVIRONMENTAL RESEARCH
(2023)
Article
Thermodynamics
Sai Yagnamurthy, Dibakar Rakshit, Sanjeev Jain, Kaiser Ahmed Rocky, Md. Amirul Islam, Bidyut Baran Saha
Summary: This study investigates the cooling performance of Maxsorb-III activated carbon composites synthesized with the additives of H25 Graphene nanoplatelets, 1-Hexyl-3-methylimidazolium bis(trifluormethylsulfonyl)imide ionic liquid with polyvinyl alcohol for R32 refrigerant-based adsorption cooling applications. The kinetic characteristics and heat of adsorption assessments are evaluated, and a holistic comparison of the cooling performances of the composites is proposed.
APPLIED THERMAL ENGINEERING
(2022)
Article
Chemistry, Applied
Xiao Wei, Pengbo Liu, Xueqin Li, Youqing Wu, Shiyong Wu, Sheng Huang, Jinhui Yang
Summary: In this study, the physicochemical properties of activated carbons prepared from antibiotic mycelial residues (AMR) and traditional biomass (TDB) were comparatively analyzed, and their adsorption performance for phenol in aqueous solution was explored. The results showed that AMR and TDB have similar physicochemical properties, and ACs with higher specific surface area (SBET) exhibited better phenol adsorption capacity. The adsorption process was mainly physical adsorption on heterogeneous surface through multilayer adsorption mechanism, controlled by the microporosity of ACs.
FUEL PROCESSING TECHNOLOGY
(2023)
Article
Environmental Sciences
Juan Zhang, Mingming Zhu, Isabelle Jones, Zhezi Zhang, Jian Gao, Dongke Zhang
Summary: Activated carbons produced from spent tyre pyrolysis char were evaluated for their performance in rhodamine B (RhB) adsorption. Factors such as RhB starting concentration, contact time, temperature, and initial pH were examined to understand their impact on the adsorption process. Results showed that activated carbons with higher mesoporosity had better adsorption capacity for RhB.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Biochemistry & Molecular Biology
Alaa M. Al-Ma'abreh, Razan Ataallah Abuassaf, Dareen A. Hmedat, Manal Alkhabbas, Gada Edris, Samer Hasan Hussein-Al-Ali, Samer Alawaideh
Summary: In this study, three hair dyes were successfully removed using oak cupules coated with ZnO. The COZ adsorbent showed high adsorption capacity and good reusability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Biochemistry & Molecular Biology
Ismaila Olalekan Saheed, Enis Nadia Md Yusof, Wen-Da Oh, Megat Ahmad Kamal Megat Hanafiah, Faiz Bukhari Mohd Suah
Summary: This study investigated the adsorption efficiency of a duo-material blend, including powder (C-emimAc), bead (CB-emimAc), and sponge (CS-emimAc), for the removal of Cd(II) from aqueous solution. The chitosan@activated carbon (Ch/AC) blend was developed using a green ionic solvent and its characteristics were examined. The interactions between the composites and Cd(II) were analyzed, and it was found that the composites showed good adsorption capacity and stability for Cd(II) adsorption.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Green & Sustainable Science & Technology
Karuppiah Kalaiselvi, Sonaimuthu Mohandoss, Naushad Ahmad, Mohammad Rizwan Khan, Ranjith Kumar Manoharan
Summary: A kappa-carrageenan/cellulose (& kappa;-CG/CL) hydrogel was prepared for the removal of Pb2+ ions from aqueous solutions. The hydrogel effectively removed Pb2+ ions, and the adsorption results were in agreement with various kinetic and isotherm models. The hydrogel showed excellent reusability, maintaining over 79% removal efficiency after eight adsorption-desorption cycles. The findings suggest that the & kappa;-CG/CL hydrogel has promising potential for the removal and recycling of heavy metal ions from aqueous solutions.
Article
Environmental Sciences
Adriana Moral-Rodriguez, Roberto Leyva-Ramos, Esmeralda Mendoza-Mendoza, Paola E. Diaz-Flores, Damarys H. Carrales-Alvarado, Maria F. Alexandre-Franco, Carmen Fernandez-Gonzalez
Summary: The textural and physicochemical characteristics of commercial activated carbons have a significant impact on their adsorption capacity for ronidazole and diclofenac. Coconut AC and Wood AC exhibit the highest adsorption capacity for RNZ and DCF at pH=7. The adsorption mechanism is mainly driven by π-π stacking interactions, and the presence of acidic sites enhances the adsorption capacity. The adsorption of RNZ on Coconut AC is irreversible, while the adsorption of DCF on Wood AC is reversible.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Environmental Sciences
Sergio Acevedo, Liliana Giraldo, Juan C. Moreno-Pirajan
Summary: This study examines the adsorption kinetics of activated carbon (AC) adsorbent materials produced from a by-product of African palm processing. The textural characteristics of the adsorbent solids were determined through N-2 physisorption, revealing BET areas between 721 and 1334 m(2)g(-1) and micropore volumes between 0.33 and 0.55 cm(3)g(-1). FTIR was used for chemical characterization, and CO2 adsorption was measured, showing values between 175 and 274 mg·g(-1). The kinetic study suggests that the intraparticle diffusion model best describes the physisorption process.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Environmental
Bomin Fu, Corinne Ferronato, Ludovic Fine, Frederic Meunier, Jose Luis Valverde, Victor R. Ferro Fernandez, Anne Giroir-Fendler, Jean-Marc Chovelon
Summary: The study investigated the adsorption characteristics of three activated carbons derived from wood on Pemetrexed (PEME) and found that different activated carbons exhibited varying adsorption behaviors in the experiments. The results also indicated that the surface functional groups of the activated carbons play a role in influencing the adsorption of the adsorbate.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Biochemistry & Molecular Biology
Karol Sidor, Tomasz Berniak, Piotr Latka, Anna Rokicinska, Marek Michalik, Piotr Kustrowski
Summary: The polycondensation of resorcinol and formaldehyde in a water-ethanol mixture using the adapted Stober method yielded spherical resol resins. By optimizing synthesis conditions and using an appropriate stabilizer, the resins were carbonized and chemically activated, leading to the characterization of carbons with different properties affecting phenol adsorption. The study found a correlation between micropore volume, graphite domain content, and the presence of heteroatoms, particularly oxygen groups, with the adsorption capacity of phenol.
Article
Engineering, Environmental
Cristian Moya, Ruben Santiago, Daniel Hospital-Benito, Jesus Lemus, Jose Palomar
Summary: Biogas upgrading is the process of removing impurities to obtain high-quality biomethane, with no predominant technology currently available. In this study, an IL-based CO2 chemical absorption process was tested to achieve high purity biomethane. Optimal specific energy consumption was found at specific operating temperatures and pressures in both the absorber and stripper columns, showing potential for cost savings and efficient removal of impurities.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Miguel Ayuso, Pablo Navarro, Cristian Moya, Daniel Moreno, Jose Palomar, Julian Garcia, Francisco Rodriguez
Summary: This study comprehensively evaluated the extractive distillation using ionic liquids for the separation of aromatic and aliphatic hydrocarbons, and compared different process configurations with the traditional Morphylane benchmark. The results indicated that the new process utilizing [emim][TCM] significantly reduced energy costs, capital expenditures, and solvent costs compared to the conventional process.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2022)
Article
Engineering, Environmental
Julio E. Sosa, Ruben Santiago, Andres E. Redondo, Jocasta Avila, Luiz F. Lepre, Margarida Costa Gomes, Joao M. M. Araujo, Jose Palomar, Ana B. Pereiro
Summary: In recent years, the global concern has been on combating climate change and mitigating the impact of F-gases on the atmosphere. The development of technologies that can efficiently separate and recycle HFCs is a priority. This study used the COSMO-RS method to analyze the solute-solvent interactions and determine the properties of R-32 and R-134a in over 600 ionic liquids. Three high-performing ionic liquids were selected and their F-gas absorption capacities were measured and compared with the COSMO-RS predictions. The results showed good agreement, indicating the potential of these ionic liquids for industrial applications.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ines Sanchis, Juan Jose Rodriguez, Angel F. Mohedano, Elena Diaz
Summary: This work investigates the impact of metal loading, impregnation order, and promoter metal type on a Pd bimetallic catalyst supported on gamma-alumina for the catalytic reduction of nitrate. The findings suggest that Pd-Sn catalysts exhibit higher activity and NH4+ selectivity, while their stability decreases in the presence of other ions.
Article
Engineering, Environmental
A. Arevalo-Bastante, S. Omar, J. Palomar, M. A. Alvarez-Montero, J. Bedia, J. J. Rodriguez, L. M. Gomez-Sainero
Summary: This study investigated the adsorption of chloromethanes and hydrogen on metal clusters of Pd, Pt, Rh, and Ru using molecular simulation. The results showed that dissociative adsorption of chloromethanes is promoted on the zero-valent metal sites while non-dissociative adsorption is favored on the electro-deficient sites. The dechlorination ability followed the order Ru > Rh > Pt > Pd, while hydrogenation ability decreased from Pd and Pt to Rh and Ru. Catalysts with high proportion of zero-valent metal species supported on CeO2-Sm2O3 exhibited outstanding performance in the hydrodechlorination of chloromethanes.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
E. Hernandez, D. Hospital-Benito, C. Moya, R. Ortiz, A. Belinchon, C. Paramio, J. Lemus, P. Navarro, J. Palomar
Summary: This study proposes a valuable approach for carbon capture and conversion (CCU) using ionic liquids (ILs) as dual-functional materials. By successfully designing and evaluating a CCU system based on ILs, the study demonstrates the feasibility and effectiveness of IL-based carbon capture and utilization.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Environmental
Y. L. Wang, M. Penas-Garzon, J. J. Rodriguez, J. Bedia, C. Belver
Summary: Novel Sr@TiO2/UiO-66-NH2 heterostructures were synthesized and used as photocatalysts for the degradation of acetaminophen. The heterostructures showed higher activity and stability compared to UiO-66-NH2, and exhibited excellent performance in a continuous flow reaction system.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Green & Sustainable Science & Technology
Alejandro Belinchon, Ruben Santiago, Elisa Hernandez, Cristian Moya, Pablo Navarro, Jose Palomar
Summary: This work investigates two closed-cycle processes for the regeneration of homogeneous catalysts based on ionic liquids through liquid-liquid extraction. The study demonstrates the efficiency of liquid-liquid extraction as a separation method for cyclic carbonates and ionic liquid catalysts.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Environmental Sciences
M. Pariente, Y. Segura, S. Alvarez-Torrellas, J. A. Casas, Z. M. de Pedro, E. Diaz, J. Garcia, M. J. Lopez-Munoz, J. Marugan, A. F. Mohedano, R. Molina, M. Munoz, C. Pablos, J. A. Perdigon-Melon, A. L. Petre, J. J. Rodriguez, M. Tobajas, F. Martinez
Summary: This review assesses different technologies for the on-site treatment of hospital wastewater from 2014 to 2020, focusing on the removal of pharmaceutical compounds. Antibiotics and psychiatric drugs were the main PhCs detected, with MBR and ozonation technologies showing promising results, but requiring further optimization for full-scale implementation.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Chemistry, Multidisciplinary
J. Lemus, C. Paramio, D. Hospital-Benito, C. Moya, R. Santiago, J. Palomar
Summary: The performance of encapsulated ionic liquid (ENIL) sorbents in CO2/CH4 separation was evaluated experimentally. It was found that ENIL sorbents have high CO2 uptake capacity and selectivity, with faster chemical sorption rates compared to physical sorbents. Acetate-based ENIL materials exhibited the best performance in terms of thermodynamics.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2022)
Article
Green & Sustainable Science & Technology
Elisa Hernandez, Alejandro Belinchon, Elia Ruiz Pachon, Pablo Navarro, Jose Palomar
Summary: This study evaluates the environmental impacts of using ionic liquids in the production of propylene carbonate and proposes a liquid-liquid extraction method as an alternative to traditional distillation-based approaches. The simulations show that tuning operating variables not only improves environmental benefits but also enhances cost-effectiveness. Additionally, the choice of ionic liquids has minimal impact on process sustainability when effective recovery is designed.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Chemistry, Multidisciplinary
Elisa Hernandez, Alejandro Belinchon, Ruben Santiago, Cristian Moya, Pablo Navarro, Jose Palomar
Summary: This study improves the process of producing propylene carbonate from CO2 and propylene oxide by using [P66614][Br] as a catalyst through an integrated experimental-computational approach. Experimental results show that the use of fatty alcohols as solvents can increase the yield of propylene carbonate and achieve the separation of ionic liquids and propylene carbonate, while water reduces the selectivity of propylene carbonate. By controlling the dosages of fatty alcohols and water, energy consumption, vacuum requirements, and operating costs can be minimized.
JOURNAL OF CO2 UTILIZATION
(2023)
Article
Engineering, Environmental
D. Hospital-Benito, C. Moya, M. Gazzani, J. Palomar
Summary: This study explores the use of ionic liquids for direct air capture and provides guidelines for their future development. By designing and assessing 26 different ionic liquids, it identifies the most promising one for the direct air capture process. Through process simulations and economic analysis, it finds that the direct air capture system based on [P-66614][Im] exhibits high efficiency and has the potential to operate at a reasonable cost.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Pablo Navarro, Daniel Moreno, Marcos Larriba, Julian Garcia, Francisco Rodriguez, Roberto I. Canales, Jose Palomar
Summary: There is a lack of knowledge on comprehensive studies of ionic liquids and extraction processes. This study applies the computational COSMO-based/Aspen multiscale methodology to analyze a wide set of 100 common ILs in the aromatic/aliphatic separation field. The analysis reveals the evolution from extractive properties to extractor behavior, the influence of the model's rigor, the role of IL at commercial specifications, and the role of the separation train.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
D. Hospital-Benito, J. Lemus, C. Moya, R. Santiago, J. Palomar
Summary: A series of Aprotic N-Heterocyclic Anion-based Ionic Liquids (AHA-ILs) were designed as chemical absorbents for industrial-scale CO2 capture processes. Through simulations, AHA-ILs within a specific range of CO2 reaction enthalpies were found to minimize solvent and energy consumptions. Some non-synthesized AHA-ILs showed promising performance as CO2 chemical absorbents.
CHEMICAL ENGINEERING JOURNAL ADVANCES
(2022)
