Robust Fluorine-Decorated {Yb4}-Organic Framework for C2H6 Capture and Efficient Catalytic Performance on CO2-Epoxide Cycloaddition DOI
Zhenfeng Wang, Fei Yang,

Aimiao Qin

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

Fluorine-functionalized MOFs have excellent unusual properties such as gas adsorption and separation catalysis, but the functionalization of existing ligands self-assembly functionalized remain a challenge. Herein, we report robust fluorine-functionalized nanochannel-based ytterbium(III)-organic framework {(Me2NH2)[Yb4(CFPDA)2(μ2-HCO2)(μ3-OH)2(H2O)2]·4DMF·5H2O}n (NUC-122, H5CFPDA = 4,4'-(4-(4-carboxy-2-fluorophenyl)pyridine-2,6-diyl)diisophthalic acid) with [Yb4(μ3-OH)2(μ2-HCO2)(H2O)2] clusters secondary building units (SBUs). Compared to reported anionic skeleton [Yb4(BDCP)2(μ2-HCO2)(μ3-OH)2(H2O)2]n (NUC-38Yb), void volume NUC-122 (54.1%) is slightly lower than that NUC-38Yb (56.7%), which caused by fluorine atoms on ligand H5BDCP. Because introduction groups, activated NUC-122a displays higher capacity for CO2 along value 117.5 cm3/g (273 K) 63.1 (298 K). Further, has high ethane (C2H6) performance over mixture C2H6/C2H4 selectivity 1.6, enabling purity recycled C2H4 reach 99.99%. Moreover, CO2-epoxide cycloaddition could be efficiently catalyzed under comparatively mild conditions. Under optimal catalytic conditions 0.13 mol % MOFs, 1.69 n-Bu4NBr, 0.7 MPa CO2, 70 °C, 3 h, conversion yield SO SC 26% NUC-38Yb. The should attributed combined diverse functional groups Lewis acidic sites Yb3+, basic -F Npyridine atoms, electrophilic H-bond donors (HBD) μ3-OH μ2-HCO2 moieties. Hence, this work not only reports multifunctional material also provides an in-depth insight into synthetic strategy metal-organic host frameworks.

Language: Английский

Pendent carboxylic acid-fuelled high-performance uranium extraction in a hydrogen-bonded framework and prolifically improved water oxidation via post-metalation-actuated composite fabrication DOI Open Access
Nilanjan Seal, Arun Karmakar, Subrata Kundu

et al.

Journal of Materials Chemistry A, Journal Year: 2024, Volume and Issue: 12(6), P. 3501 - 3512

Published: Jan. 1, 2024

Employing a functionality scissoring approach, hydrogen-bonded MOF shows selective and regenerable uranium extraction alongside exceptionally improved electrochemical oxygen evolution via post-metalation.

Language: Английский

Citations

16
Dual Stimulus Responsive GO-Modified Tb-MOF toward a Smart Coating for Corrosion Detection DOI
Qi Wang,

Yihan Song,

Shuo Wu

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(22), P. 29162 - 29176

Published: May 24, 2024

Smart-sensing coatings that exhibit multistimulus response, rapid indication, and reusability are in urgent need to effectively enhance the practicability of while accurately detecting metal corrosion. In this work, a reusable corrosion self-reporting coating with multiple pH Fe3+ stimulus responses was first constructed by integration composite fluorescent probe into resin matrix. This sensor combining lanthanide metal–organic framework (Ln-MOF) based on terbium trimeric acid (H3BTC) graphene oxide (GO) nanosheets (GO@Tb-BTC). The incorporation GO formed sea-urchin-like structure, thereby increasing specific surface area active sites probe. were characterized using electrochemical impedance spectroscopy (EIS), visual observation, fluorescence spectrophotometry. morphology, wettability, adhesion samples analyzed SEM, XPS, hydrostatic contact angle test, an test. EIS measurements 3.5 wt % NaCl solution for 72 h demonstrated superior protection performance 0.3 %/GO@Tb-BTC/WEP compared blank coating, charge-transfer resistance reaching 4.33 × 107 Ω·cm2, which 9.5 times higher than pure coating. bright green GO@Tb-BTC/WEP exhibited turn-off response when there excess OH–/H+, but it reversible turn-on ambient returned neutral. Furthermore, such Fe3+-triggered quenching responded concentrations as low 1 10–6 M. rate both intact damaged surpassed detection methods. Significantly, scratches quenched within 25 min %/GO@Tb-BTC/WPU observation. GO@Tb-BTC exceptional capabilities epoxy polyurethane systems, making versatile option beyond single-coating applications.

Language: Английский

Citations

11
Luminescent Metal–Organic Frameworks as Multimodal Platforms for Advanced Anticounterfeiting and Security Applications DOI
Partha Pratim Mondal,

Mahesh Neem,

Rudra Chand

et al.

Chemistry of Materials, Journal Year: 2024, Volume and Issue: 36(21), P. 10451 - 10473

Published: Oct. 15, 2024

The incessant threats of counterfeiting outbreaks promptly demand augmentation in the development novel security routes. Luminescent metal–organic frameworks (L-MOFs) with broad spectral emission and potential for modulation via judicious controlled amendment have emerged as promising materials measures anticounterfeiting applications. This Perspective provides an overview current developments utilization L-MOF measures. fundamental principles mechanisms behind origin luminescence are discussed at large. Herein, we also cover external stimuli-triggered subsequent alteration optical properties de novo L-MOFs well their reconfigurable composite materials. Further, practical participation real-time like latent fingerprint (LFP) detection, logic gate integrated molecular keypad lock systems, computing systems data protection deliberated. shortcomings hurdles to employing materials, such scalability, long-term sustainability, integration technologies, been taken into account this Perspective. Continued research efforts deemed essential overcome these challenges fully realize combating enhancing Despite challenges, prospect applications is seen promising, driven by ongoing advancements material science innovative approaches overcoming limitations.

Language: Английский

Citations

10
Nitrogen-Rich Covalent Organic Polymer for Metal-Free Tandem Catalysis and Postmetalation-Actuated High-Performance Water Oxidation DOI
Nilanjan Seal, Arun Karmakar, Partha Pratim Mondal

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(32), P. 41721 - 41733

Published: Aug. 1, 2024

Development of high-performing catalytic materials for selective and mild chemical transformations through adhering to the principles sustainability remains a central focus in modern chemistry. Herein, we report template-free assembly thermochemically robust covalent organic polymer (COP: 1) from 2,2′-bipyridine-5,5′-dicarbonyl dichloride 2,4,6-tris(4-aminophenyl)triazine as [2 + 3] structural motifs. The two-dimensional (2D) layered architecture contains carboxamide functionality, delocalized π-cloud, free pyridyl-N site-decked pores. Such trifunctionalization benefits this polymeric network exhibiting tandem alcohol oxidation-Knoevenagel condensation. In contrast common metal-based catalysts, 1 represents one kind metal-free oxidation reaction via extended π-cloud delocalization-mediated radical pathway, comprehensively supported diverse control experiments. addition reasonable recyclability broad substrate scope, condition underscores its applicability benign synthesis valuable product benzylidene malononitrile. Integration 2,2′-bipyridyl units 2D COP favors anchoring non-noble metal ions devise 1-M (M: Ni2+/ Co2+) that demonstrate outstanding electrochemical oxygen evolution alkaline media with high chronoamperometric stability. Electrochemical parameters both 1-Co 1-Ni outperform some benchmark, commercial, well majority contemporary OER catalysts. Specifically, overpotential Tafel slope (280 mV, 58 mV/dec) is better than (360 78 because increased charge accumulation higher number active sites compared former. addition, turnover frequency found be 6 times ranks among top-tier water results provide insights field catalysis promising splitting at interface task-specific functionality fuelling networks.

Language: Английский

Citations

7
Highly Water‐Stable 2D MOF as Dual Sensor for the Ultra‐Sensitive Aqueous Phase Detection of Nitrofuran Antibiotics and Organochlorine Pesticides DOI Creative Commons
Supriya Mondal, Rupam Sahoo, Madhab C. Das

et al.

Small, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Abstract Misuse of antibiotics and pesticides has led to hazardous effects on human health, livestock, agriculture, aquaculture, which urges researchers find simple, rapid, efficient, cost‐effective methods for quick on‐site analysis these organic pollutants with functional materials. Herein, a 2D chemically robust MOF: IITKGP‐71 , {[Cd(MBPz)(2,6‐NDC)]·2H 2 O} n is strategically developed ease in scalability exploited as dual sensors toward the toxic antibiotic pesticide detection via luminescence quenching aqueous medium . The framework displays exceptional chemical robustness water 3 months, an open atmosphere over wide range pH solution (pH = 3–12) day. can selectively quench nitrofuran (NFZ NFT) organochlorine DCN while remaining unaffected by other interfering pesticides, respectively. An excellent trade‐off between high effectivity (high K sv ) sensitivity (low LOD) was achieved targeted analytes. easy scalability, stability, fast responsivity, multi‐responsive nature, recyclability outstanding structural stability made this viable playing crucial role safeguarding aquatic ecosystems public health from pesticides.

Language: Английский

Citations

5
A fluorescent sensor based on pentafluoropropanoic acid–functionalized UiO-66-NH2 for enhanced selectivity and sensitivity of dicloran detection DOI

Xueqin Sun,

Yan Fan,

Wenyuan Zhang

et al.

Microchimica Acta, Journal Year: 2025, Volume and Issue: 192(2)

Published: Jan. 15, 2025

Language: Английский

Citations

0
Insight into the principles and advanced construction strategies of nanoprobe based multi-targets sensing in food safety DOI
Xiaohui Wang,

Guoyong Jiang,

Yuqi Wan

et al.

Food Chemistry, Journal Year: 2025, Volume and Issue: 476, P. 143376 - 143376

Published: Feb. 14, 2025

Language: Английский

Citations

0
Water‐Resistant Fluoro‐Switchable MOF and Reconfigurable Bio‐Composite for Nanomolar Level Ultra‐Fast Monitoring of Organo‐Arsenic and Antibiotic Feed‐Additives DOI
Partha Pratim Mondal, Athulya S. Palakkal, Subhadip Neogi

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 27, 2025

Abstract A mixed‐ligand‐based novel 3D Cd(II)‐based metal‐organic framework (MOF) is devised from π‐electron‐rich organic struts that shows two‐fold interpenetrated bilayer‐pillar structure. The strong luminescence of the MOF gets remarkably quenched by roxarsone (ROX) organo‐arsenic in water. material further exemplifies one‐of‐a‐kind fluoro‐switchable probe for antibiotics and exhibits massive turn‐off emission tetracycline (TTC), whereas sulfamethazine (SMZ) triggers an unprecedented 120% enhancement. Apart regenerative, fast‐responsive, selective fluoro‐detection all three feed‐additives, particularly significant nanomolar limits detection (LOD) ROX (48.9 n m ), LOD SMZ (33.9 ) ranks lowest, TTC (22.8 stands second lowest among reported sensory MOFs. Besides varying degrees energy transfer contribution TTC, density functional theory calculations manifest changes levels individual organo‐aromatics additionally describe framework–analyte supramolecular interactions. sensor works equally well different wastewater specimens a wide pH range with good recovery percentage. To broaden practical scope material, cheap MOF@paper strip as reconfigurable MOF@chitosan@paper bio‐composite developed successfully employed instantaneous monitoring both at their low concentrations.

Language: Английский

Citations

0
Robust Fluorine-Decorated {Yb4}-Organic Framework for C2H6 Capture and Efficient Catalytic Performance on CO2-Epoxide Cycloaddition DOI
Zhenfeng Wang, Fei Yang,

Aimiao Qin

et al.

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown

Published: May 8, 2025

Fluorine-functionalized MOFs have excellent unusual properties such as gas adsorption and separation catalysis, but the functionalization of existing ligands self-assembly functionalized remain a challenge. Herein, we report robust fluorine-functionalized nanochannel-based ytterbium(III)-organic framework {(Me2NH2)[Yb4(CFPDA)2(μ2-HCO2)(μ3-OH)2(H2O)2]·4DMF·5H2O}n (NUC-122, H5CFPDA = 4,4'-(4-(4-carboxy-2-fluorophenyl)pyridine-2,6-diyl)diisophthalic acid) with [Yb4(μ3-OH)2(μ2-HCO2)(H2O)2] clusters secondary building units (SBUs). Compared to reported anionic skeleton [Yb4(BDCP)2(μ2-HCO2)(μ3-OH)2(H2O)2]n (NUC-38Yb), void volume NUC-122 (54.1%) is slightly lower than that NUC-38Yb (56.7%), which caused by fluorine atoms on ligand H5BDCP. Because introduction groups, activated NUC-122a displays higher capacity for CO2 along value 117.5 cm3/g (273 K) 63.1 (298 K). Further, has high ethane (C2H6) performance over mixture C2H6/C2H4 selectivity 1.6, enabling purity recycled C2H4 reach 99.99%. Moreover, CO2-epoxide cycloaddition could be efficiently catalyzed under comparatively mild conditions. Under optimal catalytic conditions 0.13 mol % MOFs, 1.69 n-Bu4NBr, 0.7 MPa CO2, 70 °C, 3 h, conversion yield SO SC 26% NUC-38Yb. The should attributed combined diverse functional groups Lewis acidic sites Yb3+, basic -F Npyridine atoms, electrophilic H-bond donors (HBD) μ3-OH μ2-HCO2 moieties. Hence, this work not only reports multifunctional material also provides an in-depth insight into synthetic strategy metal-organic host frameworks.

Language: Английский

Citations

0