Article
Engineering, Environmental
Sisi Jiang, Lidong Guo, Lihang Chen, Changhua Song, Baojian Liu, Qiwei Yang, Zhiguo Zhang, Yiwen Yang, Qilong Ren, Zongbi Bao
Summary: This paper demonstrates a new zirconium MOF material (MOF-841) with hydrophobic pores and oxygen-rich groups, which can selectively adsorb C2H6, achieving efficient separation of ethylene and ethane gas mixture.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Sisi Jiang, Liangying Li, Lidong Guo, Changhua Song, Qiwei Yang, Zhiguo Zhang, Yiwen Yang, Qilong Ren, Zongbi Bao
Summary: This study reports a robust scandium-based metal-organic framework connected by an oxygen-rich phenyl ligand, which shows high adsorption capacity for C2H6 and superior selectivity for separating C2H6/C2H4 mixture. Theoretical calculations demonstrate the trapping of C2H6 molecules in the nonpolar pore surface via specific interactions.
SCIENCE CHINA-CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Yi Li, Yabo Xie, Xin Zhang, Ever Velasco, Qiang Chen, Jian-Rong Li
Summary: We report two dynamic pillar layered metal-organic frameworks (MOFs) BUT-111 and BUT-112 for efficient purification of C2H4. The activated MOFs exhibit ultramicropores and reversed order adsorption behavior for C2H6 and C2H4, allowing highly purified C2H4 to be obtained in one step from the C2H6/C2H4 mixture. The degree of interpenetration in BUT-112 can be controlled by the synthetic temperature, enhancing the C2H4 purification effectively.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Yutong Wang, Chunlian Hao, Weidong Fan, Mingyue Fu, Xiaokang Wang, Zhikun Wang, Lei Zhu, Yue Li, Xiaoqing Lu, Fangna Dai, Zixi Kang, Rongming Wang, Wenyue Guo, Songqing Hu, Daofeng Sun
Summary: A new modification method using stable ftw topological Zr-MOF platform has been developed to purify ethylene from a mixture of hydrocarbon gases. The introduction of functional groups in UPC-612 and UPC-613 materials has increased host-guest interactions, leading to efficient separation of C2H2/C2H4/C2H6.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Nanoscience & Nanotechnology
Beibei Lai, John Cahir, Min Ying Tsang, Johan Jacquemin, David Rooney, Barry Murrer, Stuart L. James
Summary: The study assessed the potential of formulating a porous liquid for the separation of ethane and ethene. By tailoring Type 3 porous liquids, high selectivity for ethene over ethane was achieved, suggesting potential application in cyclic separation processes.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Engineering, Chemical
Hong-Xiang Nie, Mei-Hui Yu, Qiang Gao, Rajamani Krishna, Ze Chang
Summary: In this study, a novel microporous MOF (NKU-0821) with suitable aperture size and functionalized pore surface was reported, which can efficiently capture C2H6 from C2H6/C2H4 mixture and achieve effective separation under simulated industrial conditions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Junhua Wang, Xin Lian, Zhiyuan Zhang, Xiongli Liu, Qiao Zhao, Jian Xu, Xichuan Cao, Baiyan Li, Xian-He Bu
Summary: A highly stable thiazole functionalized covalent triazine framework, CTF-BT-500, has been developed for C2H6/C2H4 separation, exhibiting the highest ethane uptake among all reported COFs. This work not only presents an excellent C2H6-selective adsorbent, but also provides guidance for the construction of robust adsorbents for value-added gas purification.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Annika F. Moslein, Jin-Chong Tan
Summary: In this study, the complex physical phenomena and structural dynamics of ZIF-71 were investigated through experimental and computational techniques. The vibrational modes of ZIF-71 were assigned and low-energy terahertz dynamics were discovered. Nanoscale analytical methods were used to explore the local chemical and mechanical properties of ZIF-71 single crystals.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Xiao-Wu Lei, Huajun Yang, Yanxiang Wang, Yong Wang, Xitong Chen, Yuchen Xiao, Xianhui Bu, Pingyun Feng
Summary: A novel metal-organic framework based on 8-connected metal trimers has been successfully created using a strategy called angle bending modulation. These materials show excellent gas-sorption properties, particularly in terms of adsorption capacity and selectivity for various hydrocarbon gas molecules. The study also demonstrates that six members in this family with different gas adsorption performances can be synthesized using different types of ligands.
Review
Engineering, Environmental
Daofei Lv, Pingjun Zhou, Junhao Xu, Shi Tu, Feng Xu, Jian Yan, Hongxia Xi, Wenbing Yuan, Qiang Fu, Xin Chen, Qibin Xia
Summary: This review summarizes the research progress on C2H6/C2H4 separation and the characteristics of various adsorbents. Strategies to improve selectivity and stability are discussed, and future challenges and directions are explored.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Chemical
Houxiao Wu, Yongwei Chen, Yinuo Yuan, Daofei Lv, Shi Tu, Zewei Liu, Zhong Li, Qibin Xia
Summary: This study synthesized a series of highly stable metal-organic frameworks and investigated the influence of metal compositions on the C2H6 selective performance. Molecular simulation revealed that the introduced metal ions have different influences on the atomic partial charge within the framework, affecting the adsorption affinities toward C2H6/C2H4 molecules.
Article
Chemistry, Multidisciplinary
Mei-Hui Yu, Han Fang, Hong-Liang Huang, Meng Zhao, Zheng-Yu Su, Hong-Xiang Nie, Ze Chang, Tong-Liang Hu
Summary: The pore dimension and surface property of porous materials play a crucial role in the transport of gases. To improve separation performance, it is important to design metal-organic frameworks (MOFs) with functional groups that can regulate the pore size. In this study, four MOFs (TKL-104-107) with different fluorination degrees were investigated for their adsorption behavior of C2H6 and C2H4. The fluorination of carboxyl at specific positions (ortho and meta) improved the selectivity and capacity of C2H6/C2H4 separation. The results suggest that purposeful functionalization of the pore surface can enhance the performance of MOF adsorbents for specific gas separation.
Article
Chemistry, Multidisciplinary
De Ao, Zibo Yang, Zhihua Qiao, Yuxiu Sun, Zhengqing Zhang, Michael D. Guiver, Chongli Zhong
Summary: A self-supported MOF crystal-glass composite (CGC) membrane was prepared by melt quenching ZIF-62 and ZIF-8 mixture. The membrane exhibited improved gas permeance and selectivity due to its unique structure. The thickness of the membrane can be adjusted without the need of a support substrate.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Chemical
Pengtao Guo, Yunpan Ying, Miao Chang, Dahuan Liu
Summary: Constructing an ultra-microporous MOF (PCP-bdc) with customized pore size and specific binding sites can efficiently purify C2H4 from C2H6/C2H4 mixture, showing remarkable selectivity and adsorption capacity. These results suggest that PCP-bdc is a promising adsorbent for C2H6/C2H4 separation.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Changhua Song, Fang Zheng, Ying Liu, Qiwei Yang, Zhiguo Zhang, Qilong Ren, Zongbi Bao
Summary: In this work, a site-engineering strategy was employed to manipulate the spatial distribution of binding sites within a confined pore space, enabling the one-step purification of ethylene from mixtures. By incorporating nitrogen-containing heterocycles into the MOF-808 platform via post-synthetic modification, the resulting functionalized materials showed significantly improved selectivity for ethane, demonstrating the ability to efficiently capture ethane molecules.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Medicinal
Rosana Pinto, Silvia Carvalho, Fernando Antunes, Joao Pires, Moises L. Pinto
Summary: This review discusses the importance of nitric oxide and hydrogen sulfide in wound healing applications, as well as the challenges in designing effective delivery systems. It introduces different types of new releasing carriers to facilitate the application of these molecules in clinical practice.
Article
Chemistry, Physical
Abeer Al Mohtar, Moises L. Pinto
Summary: This study investigates the effect of moisture on the CO2 capture mechanism using an amine-functionalized silica support through density functional theory. The presence of water reduces the activation energy of the capture reaction and promotes product stability.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Nanoscience & Nanotechnology
Rosana V. Pinto, Silvia Carvalho, Fernando Antunes, Joao Pires, Moises L. Pinto
Summary: A polymeric film with a nanoporous carrier was developed to deliver nitric oxide (NO) or hydrogen sulfide (H2S) for wound healing. The film achieved sustained gas release in biological media due to the polymer barrier. Gas-loaded films showed different biological actions, with NO being non-toxic and H2S approaching toxic levels at lower concentrations. The films also demonstrated potential antibacterial efficacy against E. coli.
ACS APPLIED NANO MATERIALS
(2022)
Article
Engineering, Environmental
Marlene Pacheco, Marta Bordonhos, Mariana Sardo, Rui Afonso, Jose R. B. Gomes, Luis Mafra, Moises L. Pinto
Summary: The effect of minor amounts of water on CO2 and CH4 adsorption on amine-functionalised materials was studied, and it was found that the presence of water significantly enhances the selectivity for CO2 on tertiary amine-functionalised materials. However, the presence of water has no effect on the adsorption properties of primary amine-functionalised materials.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Subharanjan Biswas, Mohamed Haouas, Catia Freitas, Carla Vieira Soares, Abeer Al Mohtar, Ali Saad, Heng Zhao, Georges Mouchaham, Carine Livage, Florent Carn, Nicolas Menguy, Guillaume Maurin, Moises L. Pinto, Nathalie Steunou
Summary: Metal-organic framework-gelatin bionanocomposites were synthesized using the thermo-reversible character of gelatin and the liquid-liquid phase separation process. The composites showed excellent physico-chemical matching and high adsorption performance.
CHEMISTRY OF MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Maria Ines Severino, Abeer Al Mohtar, Carla Vieira Soares, Catia Freitas, Nicolas Sadovnik, Shyamapada Nandi, Georges Mouchaham, Vanessa Pimenta, Farid Nouar, Marco Daturi, Guillaume Maurin, Moises L. Pinto, Christian Serre
Summary: Metal-Organic Frameworks (MOFs) with open metal sites (OMS) can strongly interact with polar gases/vapors. However, their selective adsorption is usually hindered by a high affinity to water under ambient conditions. This study challenges the paradigm by demonstrating that metal(III) polycarboxylates MOFs, such as MIL-100(Fe), with a high concentration of OMS, enable the selective capture of polar VOCs even in the presence of water. The adsorption mechanism involves a direct coordination of the VOC on the OMS, which has a stronger interaction energy compared to water.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Applied
Silvia Carvalho, Rosana V. Pinto, Joao Pires, Joao Rocha, Fernando Antunes, Moises L. Pinto
Summary: Four PEG composites were synthesized and characterized for their adsorption and release performance of hydrogen sulfide (H2S) and nitric oxide (NO). Cytotoxicity studies showed that the PEG composites had no toxicity to human cells.
MICROPOROUS AND MESOPOROUS MATERIALS
(2023)
Article
Chemistry, Physical
Maria Ines Severino, Abeer Al Mohtar, Carla Vieira Soares, Oleksii Kolmykov, Catia Freitas, Iurii Dovgaliuk, Charlotte Martineau, Vanessa Pimenta, Farid Nouar, Guillaume Maurin, Moises L. Pinto, Christian Serre
Summary: Effective capture of polar volatile organic compounds under environmental conditions is a challenge that can be overcome by introducing perfluorinated groups into a flexible microporous MOF. The perfluorinated flexible MIL-53(Al) with one CF3 group exhibits outstanding affinity for acetic acid even in the presence of water, making it an optimum sorbent for indoor air quality management under real working conditions.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Review
Multidisciplinary Sciences
Marta Bordonhos, Tiago L. P. Galvao, Jose R. B. Gomes, Jose D. Gouveia, Miguel Jorge, Mirtha A. O. Lourenco, Jose M. Pereira, German Perez-Sanchez, Moises L. Pinto, Carlos M. Silva, Joao Tedim, Bruno Zezere
Summary: This article presents an overview of a collaborative research effort on computational approaches to understand materials and tools at different length and time scales. It introduces various techniques and models used in the study, as well as recent computational case studies focusing on material synthesis, interpretation of experimental results, prediction of material properties, and material selection for specific applications.
ADVANCED THEORY AND SIMULATIONS
(2023)
Article
Chemistry, Multidisciplinary
Beatriz Matos, Mary Batista, Joao Pires
Summary: In the face of global warming and the energy crisis, it is crucial to reduce the emissions of greenhouse gases like CO2 and CH4 and recycle biomethane from landfill biogas. This study demonstrates the potential of converting glycerol, a by-product of biodiesel production, into activated carbon using potassium acetate as an activating agent. The activated carbon exhibits high adsorption capacities for CO2 and CH4, with selectivity values that enable effective separation. Additionally, the study finds that the CO2 emissions produced during activated carbon synthesis can be easily neutralized through their use in small biogas production units.
ENVIRONMENTAL CHEMISTRY LETTERS
(2023)
Article
Biochemistry & Molecular Biology
Mary Batista, Renato Carvalho, Moises L. Pinto, Joao Pires
Summary: Glycerin and dopamine were used as precursors to prepare microporous activated carbon adsorbent materials for the separation of ethane/ethylene and natural gas or landfill gas components. The activated carbons were produced through carbonization and chemical activation, with the introduction of nitrogenated groups to improve selectivity. Methane had the lowest adsorption capacity on the most effective material, followed by carbon dioxide, ethylene, and ethane.
Article
Chemistry, Physical
Silvia Carvalho, Joao Pires, Cristina Moiteiro, Moises L. Pinto
Summary: A new imine-linked polymer organic framework with microporosity and temperature stability has been synthesized using inexpensive reagents. The material has a higher capacity to adsorb NO compared to H2S. This study explores the potential use of the framework in the therapeutic release of NO or H2S.
