Metal–Organic Framework Based Hydrogen-Bonding Nanotrap for Efficient Acetylene Storage and Separation

Journal of the American Chemical Society, Journal Year: 2021, Volume and Issue: 144(4), P. 1681 - 1689

Published: Dec. 29, 2021

The removal of carbon dioxide (CO2) from acetylene (C2H2) is a critical industrial process for manufacturing high-purity C2H2. However, it remains challenging to address the tradeoff between adsorption capacity and selectivity, on account their similar physical properties molecular sizes. To overcome this difficulty, here we report novel strategy involving regulation hydrogen-bonding nanotrap pore surface promote separation C2H2/CO2 mixtures in three isostructural metal-organic frameworks (MOFs, named MIL-160, CAU-10H, CAU-23, respectively). Among them, which has abundant acceptors as nanotraps, can selectively capture molecules demonstrates an ultrahigh C2H2 storage (191 cm3 g-1, or 213 cm-3) but much less CO2 uptake (90 g-1) under ambient conditions. amount MIL-160 remarkably higher than those other two MOFs (86 119 g-1 CAU-10H respectively) same More importantly, both simulation experimental breakthrough results show that sets new benchmark equimolar terms potential (Δqbreak = 5.02 mol/kg) productivity (6.8 mol/kg). In addition, situ FT-IR experiments computational modeling further reveal unique host-guest multiple interaction key factor achieving extraordinary superior selectivity. This work provides powerful approach extremely gas separation.

Language: Английский

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Progress and potential of metal-organic frameworks (MOFs) for gas storage and separation: A review

Journal of environmental chemical engineering, Journal Year: 2022, Volume and Issue: 10(5), P. 108300 - 108300

Published: July 20, 2022

Language: Английский

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A microporous 2D cobalt-based MOF with pyridyl sites and open metal sites for selective adsorption of CO2

Microporous and Mesoporous Materials, Journal Year: 2022, Volume and Issue: 341, P. 112098 - 112098

Published: July 8, 2022

Language: Английский

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Application of covalent organic frameworks and metal–organic frameworks nanomaterials in organic/inorganic pollutants removal from solutions through sorption-catalysis strategies

Carbon Research, Journal Year: 2023, Volume and Issue: 2(1)

Published: Feb. 9, 2023

Abstract With the fast development of agriculture, industrialization and urbanization, large amounts different (in)organic pollutants are inevitably discharged into ecosystems. The efficient decontamination contaminants is crucial to human health ecosystem pollution remediation. Covalent organic frameworks (COFs) metal–organic (MOFs) have attracted multidisciplinary research interests because their outstanding physicochemical properties like high stability, surface areas, sorption capacity or catalytic activity. In this review, we summarized recent works about elimination/extraction pollutants, heavy metal ions, radionuclides by MOFs COFs nanomaterials through sorption-catalytic degradation for chemicals reduction-precipitation-extraction metals radionuclides. interactions between COFs/MOFs at molecular level were discussed from density functional theory calculation spectroscopy analysis. was mainly dominated electrostatic attraction, π-π interaction, complexation H-bonding whereas ions attributed complexation, ion exchange, reduction incorporation reactions. porous structures, groups, active sites important ability selectivity. doping co-doping metal/nonmetal, with other materials could change visible light harvest generation/separation electrons/holes (e − /h + ) pairs, thereby enhanced photocatalytic challenges possible application in elimination water described end.

Language: Английский

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Biodegradable Metal–Organic‐Framework‐Gated Organosilica for Tumor‐Microenvironment‐Unlocked Glutathione‐Depletion‐Enhanced Synergistic Therapy

Advanced Materials, Journal Year: 2021, Volume and Issue: 34(12)

Published: Dec. 13, 2021

The clinical employment of cisplatin (cis-diamminedichloroplatinum(II) (CDDP)) is largely constrained due to the non-specific delivery and resultant serious systemic toxicity. Small-sized biocompatible biodegradable hollow mesoporous organosilica (HMOS) nanoparticles show superior advantages for targeted CDDP but suffer from premature leakage. Herein, smart use a bimetallic Zn2+ /Cu2+ co-doped metal-organic framework (MOF) made block pores HMOS preventing potential leakage remarkably increasing loading capacity HMOS. Once reaching acidic tumor microenvironment (TME), outer MOF can decompose quickly release chemotherapy against cancer. Besides, concomitant dopant Cu2+ deplete intracellular glutathione (GSH) increased toxicity as well catalyzing decomposition intratumoral H2 O2 into highly toxic •OH chemodynamic therapy (CDT). Moreover, substantially reduced GSH also protect yielded scavenging thus greatly improve •OH-based CDT effect. In addition providing hybrid HMOS@MOF nanocarrier, this study expected establish new form TME-unlocked nanoformula efficient tumor-specific GSH-depletion-enhanced synergistic chemotherapy/chemodynamic therapy.

Language: Английский

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Engineering Supramolecular Binding Sites in a Chemically Stable Metal‐Organic Framework for Simultaneous High C₂H₂Storage and Separation

Angewandte Chemie International Edition, Journal Year: 2022, Volume and Issue: 61(41)

Published: Aug. 18, 2022

Developing porous materials to overcome the trade-off between adsorption capacity and selectivity for C2 H2 /CO2 separation remains a challenge. Herein, we report stable HKUST-1-like MOF (ZJU-50a), featuring large cages decorated with high density of supramolecular binding sites achieve both storage selectivity. ZJU-50a exhibits one highest (192 cm3 g-1 ) concurrently (12) at 298 K 1 bar. Single-crystal X-ray diffraction studies on gas-loaded crystal unveil that incorporated can selectively take up molecule but not CO2 result in Breakthrough experiments validated its performance mixtures, providing recovery 84.2 L kg-1 99.5 % purity. This study suggests novel strategy engineering into MOFs this separation.

Language: Английский

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Metal-organic frameworks for C2H2/CO2 separation: Recent development

Coordination Chemistry Reviews, Journal Year: 2023, Volume and Issue: 482, P. 215093 - 215093

Published: March 1, 2023

Language: Английский

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Pore space partition of metal-organic frameworks for gas storage and separation

EnergyChem, Journal Year: 2022, Volume and Issue: 4(4), P. 100080 - 100080

Published: June 30, 2022

Language: Английский

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Incorporation of multiple supramolecular binding sites into a robust MOF for benchmark one-step ethylene purification

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Oct. 2, 2023

One-step adsorption separation of C

Language: Английский

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De‐Linker‐Enabled Exceptional Volumetric Acetylene Storage Capacity and Benchmark C₂H₂/C₂H₄and C₂H₂/CO₂Separations in Metal–Organic Frameworks

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 62(10)

Published: Jan. 12, 2023

An ideal adsorbent for separation requires optimizing both storage capacity and selectivity, but maximizing or achieving a desired balance remain challenging. Herein, de-linker strategy is proposed to address this issue metal-organic frameworks (MOFs). Broadly speaking, the idea targets class of materials that may be viewed as being intermediate between zeolites MOFs. Its feasibility shown here by series ultra-microporous MOFs (SNNU-98-M, M=Mn, Co, Ni, Zn). SNNU-98 exhibit high volumetric C2 H2 uptake under low ambient pressures (175.3 cm3 cm-3 @ 0.1 bar, 222.9 1 298 K), well extraordinary selectivity (2405.7 /C2 H4 , 22.7 /CO2 ). Remarkably, SNNU-98-Mn can efficiently separate from mixtures with benchmark (1/99) breakthrough time 2325 min g-1 produce 99.9999 % productivity up 64.6 mmol surpassing values reported MOF adsorbents.

Language: Английский

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