Metal Organic Frameworks (MOFs) as Advanced Functional Materials for Food Applications

ACS Food Science & Technology, Год журнала: 2024, Номер unknown

Опубликована: Сен. 26, 2024

Язык: Английский

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Synthesis of Calix[4]arene‐Based Porous Organic Cages and Their Gas Adsorption

Chemistry - A European Journal, Год журнала: 2024, Номер 30(34)

Опубликована: Апрель 16, 2024

Two crystalline large-sized porous organic cages (POCs) based on conical calix[4]arene (C4A) were designed and synthesized. The four-jaw C4A unit tends to follow the face-directed self-assembly law with planar triangular building blocks such as tris(4-aminophenyl)amine (TAPA) or 1,3,5-tris(4-aminophenyl)benzene (TAPB) generate a predictable cage stoichiometry of [6+8]. formation large is confirmed through their relative molecular mass measured using MALDI-TOF/TOF spectra. protonated ion peaks C4A-TAPA C4A-TAPB observed at m/z 5109.0 (calculated for C

Язык: Английский

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Facilely tuning the morphologies of tertiary amine-functionalized SBA-15 for optimizing selective SO2 capture

Chemical Engineering Journal, Год журнала: 2024, Номер 487, С. 150651 - 150651

Опубликована: Март 26, 2024

Язык: Английский

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High-Performance Porous Organic Polymers for Environmental Remediation of Toxic Gases

Langmuir, Год журнала: 2024, Номер 40(15), С. 8024 - 8034

Опубликована: Апрель 4, 2024

Sulfur dioxide (SO2) is a harmful acidic gas generated from power plants and fossil fuel combustion represents significant health risk threat to the environment. Benzimidazole-linked polymers (BILPs) have emerged as promising class of porous solid adsorbents for toxic gases because their chemical thermal stability well nature imidazole moiety. The performance BILPs in SO2 capture was examined by synergistic experimental theoretical studies. exhibit significantly high uptake up 8.5 mmol g–1 at 298 K 1.0 bar. density functional theory (DFT) calculations predict that this due dipole–dipole interactions between functionalized polymer frames through O2S(δ+)···N(δ–)-imine O═S═O(δ–)···H(δ+)-aryl intermolecular attraction molecules (O═S═O(δ–)···S(δ+)O2). Moderate isosteric heats adsorption (Qst ≈ 38 kJ mol–1) obtained studies are supported DFT (≈40 mol–1), which suggests physisorption processes enabling rapid adsorbent regeneration reuse. Repeated experiments with almost identical confirm easy robustness BILPs. Moreover, possess very selectivity low concentration over carbon (CO2), methane (CH4), nitrogen (N2): SO2/CO2, 19–24; SO2/CH4, 118–113; SO2/N2, 600–674. This study highlights potential desulfurization flue or other mixtures capturing trace levels SO2.

Язык: Английский

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Triazine‐based multicomponent metallacages with tunable structures for SO₂ selective capture and conversion

Aggregate, Год журнала: 2023, Номер 5(1)

Опубликована: Авг. 22, 2023

Abstract The design of novel materials for sulfur dioxide (SO 2 ) capture and conversion with considerable efficiency under mild conditions is great significance human health environmental protection yet highly challenging. Herein, we report a series triazine‐based multicomponent metallacages via coordination‐driven self‐assembly 2,4,6‐tri(4‐pyridyl)‐1,3,5‐triazine, cis‐Pt(PEt 3 (OTf) different tetracarboxylic ligands. As the increase length tetracarboxylates, structures change from pyramids to extended octahedrons. Owing their N‐rich structure, these are further used selective SO capture, showing good adsorption capacity remarkable /CO selectivity in ambient conditions, suggesting potential applications toward real flue gas desulfurization. employed into value‐added compounds, exceptional even dilute as reactant. This study represents type structure‐tunable conversion, which will pave way on metal‐organic complexes adsorption.

Язык: Английский

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CYCU-3: an Al(iii)-based MOF for SO₂ capture and detection

Dalton Transactions, Год журнала: 2024, Номер 53(10), С. 4790 - 4796

Опубликована: Янв. 1, 2024

The Al( iii )-based MOF CYCU-3 was evaluated for its SO 2 adsorption and detection performance.

Язык: Английский

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Electronic Chemical Sensors Based on Conductive Framework Materials

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

The development of portable electronic chemical sensors is key to solving a number challenges, including monitoring environmental and industrial hazards, as well understanding improving human health. Framework materials possess several desirable characteristics that make them well-suited for electroanalytical applications, high surface area, atomically precise distribution active sites, tunable properties can be leveraged through modular reticular chemistry. This review highlights the emergence conductive framework components in electrically transduced sensors, new detection wide variety analytes both gas liquid phase. efforts gain fundamental molecular interactions sensing mechanisms between are described, along with applications these on flexible substrates. suggests areas further study, study material–analyte at level continued scalable methods integration into low-power, devices.

Язык: Английский

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Metal–organic frameworks (MOFs) toward SO₂ detection

Chemical Society Reviews, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

Metal–organic frameworks (MOFs) are crystalline organic–inorganic hybrid materials, which promising candidates for SO 2 detection, due to their chemically mutable periodic structure.

Язык: Английский

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Wykorzystanie symulacji Monte Carlo do oceny potencjału zastosowania nanowęgli gyroidalnych jako adsorbentów do wychwytu ditlenku siarki

Science Technology and Innovation, Год журнала: 2025, Номер 20(1), С. 10 - 28

Опубликована: Апрель 30, 2025

Ditlenek siarki jest zanieczyszczeniem gazowym mogącym wywierać negatywny wpływ na środowisko naturalne oraz ludzkie zdrowie. Adsorpcja jedną z metod, którą można wykorzystać do jego usuwania. W ramach niniejszego badania wykorzystano symulacje Monte Carlo przewidzenia właściwości adsorpcyjnych nanoporowatych węgli gyroidalnych względem SO₂. Układy tego typu stanowią nową obiecującą klasę szeroko rozumianych nanomateriałów węglowych. Wykorzystując serię węglowych struktur modelowych o geometrii gyroidalnej, w sposób systematyczny zbadano ilościowo różnic ich struktury porowatej wychwyt ditlenku siarki. Dokonano również porównania adsorpcją nieuporządkowanych porach aktywnych. Potwierdzono, że kluczowym parametrem rozmiar porów. Nanowęgle gyroidalne węższych adsorbują większą ilość SO₂ przy niskiej prężności, a jednocześnie cała objętość porów może zostać zapełniona niższym ciśnieniu. Zwiększenie rozmiaru sprawia jednak, rośnie maksymalna liczba moli pochłaniana przez jednostkę masy adsorbentu, ale jej osiągnięcie następuje wyższej prężności gazu. Z praktycznego punktu widzenia znaczenie ma przede wszystkim adsorpcja niskich ciśnieniach. takich warunkach nanowęgle gyroidalne, zwłaszcza te wąskich porach, jak GNC-04, mogą być efektywnymi adsorbentami

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SO₂ capture and detection with carbon microfibers (CMFs) synthesised from polyacrylonitrile

Chemical Communications, Год журнала: 2024, Номер 60(29), С. 3970 - 3973

Опубликована: Янв. 1, 2024

Carbon microfibers (CMFs) are low-cost and robust SO 2 adsorbents, exhibiting cyclability, good /CO selectivity, photoluminescence response to .

Язык: Английский

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