Ultrasensitive Electrochemiluminescence Biosensor with ZIF‐67@MXene as an Efficient Co‐Reaction Accelerator and Plasmonic Nanozyme as a Smart Signal Amplification Probe

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

Published: Sept. 18, 2024

Abstract Exploring novel electrochemiluminescence (ECL) co‐reaction accelerators to construct ultrasensitive sensing systems is a prominent focus for developing advanced ECL sensors. However, challenges still remain in finding highly efficient and understanding their promoting mechanisms. In this paper, ZIF‐67@MXene nanosheet composites, with conductive in‐plane structure confined‐stable pore/channel, are designed act as high‐efficient achieve significant enhancement the luminol‐H 2 O based system. Mechanism investigation suggests that hydroxyl radicals (·OH) singlet oxygen ( 1 ) can be selectively preferentially generated on due stable absorption of ·OH , leading remarkable efficiency luminol (830%). Finally, by designing plasmonic NH ‐MIL‐88@Pd nanozyme, an “on‐off” switch immunosensor constructed detection prostate‐specific antigen (PSA). Based multiple signal amplification effect, linear range PSA expanded three orders magnitude. The limit also improved from 1.44 × 10 −11 9.1 −13 g mL −1 . This work proposes effective method preparation provides new strategy sensitive cancer markers.

Language: Английский

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Cu-Fe bimetallic MOFs with long lifetime separated-state charge for enhancing selectivity for CO2 photoreduction to CH4

Applied Catalysis B Environment and Energy, Journal Year: 2024, Volume and Issue: 359, P. 124491 - 124491

Published: Aug. 14, 2024

Language: Английский

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MOF‐based Dual‐Layer Pickering Emulsion: Molecular‐Level Gating of Water Delivery at Water‐Oil Interface for Efficient Photocatalytic Hydrogenation Using H2O as a Hydrogen Source

Angewandte Chemie International Edition, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Abstract Biphasic system not only presents a promising opportunity for complex catalytic processes, but also is grand challenge in efficient tandem reactions. As an emerging solar‐to‐chemical conversion, the visible‐light‐driven and water‐donating hydrogenation combines sustainability of photocatalysis economic‐value hydrogenation. However, key challenging point to couple water‐soluble photocatalytic hydrogen evolution reaction (HER) with oil‐soluble Herein, we employed metal–organic frameworks (MOFs) CdS nanorods construct MOF‐CdS dual‐layer Pickering emulsion (water oil, W/O), which compartmented aqueous phase HER oil The hydrophobic MOF hydrophilic were isolated at inner outer layers W/O emulsion, respectively. molecularly regulated hydrophobicity controlled water delivery onto photocatalysts, realized synergistic regulation In cinnamaldehyde, highest yield reached 187.37 mmol ⋅ g −1 h , 30 times that counterpart without (6.44 ). Its apparent quantum 43.24 % co‐catalysts. To our knowledge, this performance top‐level so far. Our work precise water‐oil interface effectively two reactions different phases, providing new perspective catalysis.

Language: Английский

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MOF‐based Dual‐Layer Pickering Emulsion: Molecular‐Level Gating of Water Delivery at Water‐Oil Interface for Efficient Photocatalytic Hydrogenation Using H2O as a Hydrogen Source

Angewandte Chemie, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 2, 2025

Abstract Biphasic system not only presents a promising opportunity for complex catalytic processes, but also is grand challenge in efficient tandem reactions. As an emerging solar‐to‐chemical conversion, the visible‐light‐driven and water‐donating hydrogenation combines sustainability of photocatalysis economic‐value hydrogenation. However, key challenging point to couple water‐soluble photocatalytic hydrogen evolution reaction (HER) with oil‐soluble Herein, we employed metal–organic frameworks (MOFs) CdS nanorods construct MOF‐CdS dual‐layer Pickering emulsion (water oil, W/O), which compartmented aqueous phase HER oil The hydrophobic MOF hydrophilic were isolated at inner outer layers W/O emulsion, respectively. molecularly regulated hydrophobicity controlled water delivery onto photocatalysts, realized synergistic regulation In cinnamaldehyde, highest yield reached 187.37 mmol ⋅ g −1 h , 30 times that counterpart without (6.44 ). Its apparent quantum 43.24 % co‐catalysts. To our knowledge, this performance top‐level so far. Our work precise water‐oil interface effectively two reactions different phases, providing new perspective catalysis.

Language: Английский

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Experimental and Theoretical Study of Two 3D Difunctional Electrocatalytic Hybrid Vanadate-Containing Metal–Organic Motifs

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 29, 2025

Two novel 3D inorganic-organic hybrids based on [V6O18]6-/[V3O9]3- clusters, [Cu18(bbpy)18(V6O18)6]·3H2O (1) and [Cu4Ag4(pty)4(V3O9)4]·H2O (2) (bbpy = 3,5-bis(1-benzimidazole) pyridine, pty 4'-(4″-pyridyl)-2,2':6',2″-terpyridine), were isolated in the same POV/Cu/N-heterocycle ligand reaction systems. Hybrids 1 2 possess three-dimensional bimetallic frameworks derived from clusters Cu-organic complexes. In 1, bbpy ligands are grafted by Cu2+ to a grid ribbon 2D sheet, which connected with benzene-like [V6O18]6- yield framework. 2, helical {O-V-O-V-}n chains bridged Cu(II) ions into layer including eight-membered rings {V6Cu2} six-membered {V4Cu2}, adjoining sheets joined Ag-N coordination bonds form framework structure. Moreover, hybrid has superior electrocatalytic properties for nitrite reduction oxidation of ascorbic acid efficiencies 397.2 96%, respectively. Hybrid displays coordinated performance toward through V Cu centers. Meanwhile, corresponding theoretical studies conducted evaluate active sites charge distribution.

Language: Английский

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Integration of CO2 Activation and Photogenerated Electron Accumulation at Ti Site via Dual-tandem Electric Fields in BiOBr-MIL-125 Heterojunction for Boosting CO2 Photoreduction

Applied Catalysis B Environment and Energy, Journal Year: 2025, Volume and Issue: unknown, P. 125165 - 125165

Published: Feb. 1, 2025

Language: Английский

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Synergistic advantages of In-MOF/Bi₂MoO₆ composites in photocatalytic CO₂ reduction: enhanced light absorption, charge separation and reactivity

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

Published: Jan. 1, 2025

The development of highly efficient photocatalysts for the reduction CO 2 holds paramount importance in addressing pressing global energy and environmental challenges.

Language: Английский

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Sunlight-driven simultaneous CO2 reduction and water oxidation using indium-organic framework heterostructures

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: March 16, 2025

Abstract Overall artificial photosynthesis, as a promising approach for sunlight-driven CO 2 recycling, requires photocatalysts with efficient light adsorption and separate active sites coupling H O oxidation. Here we show In-based metal–organic framework (MOF) heterostructure, i.e., In-porphyrin (In-TCPP) nanosheets enveloping an In-NH -MIL-68 (M68N) core, via facile one-pot synthesis that utilises competitive nucleation growth of two organic linkers In nodes. The coherent interfaces the core@shell MOFs assure structural stability which will function heterojunctions to facilitate transfer photogenerated charge overall photosynthesis. In-TCPP shell in heterostructure improves capabilities visible absorption enhance photocatalytic reduction. Simultaneously, In-O M68N core efficiently catalyze oxidation, achieving high yields HCOOH (397.5 μmol g −1 h ) (321.2 under focused sunlight irradiation. superior performance this coupled its straightforward synthesis, shows great potential mitigating carbon emissions producing valuable chemicals using solar energy.

Language: Английский

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MOF-based catalysts for CO2 reduction via photo-, electro-, and photoelectrocatalysis: a review

Academia green energy., Journal Year: 2025, Volume and Issue: 2(1)

Published: March 19, 2025

The increasing levels of carbon dioxide (CO2) in the atmosphere have driven global efforts to find sustainable and effective reduction technologies mitigate climate change. Among these, Metal–Organic Framework (MOF)-based catalysts emerged as a promising solution due their high surface area, tunable porosity, ability incorporate active metal sites. There is gap literature, specifically understanding advancement MOF-based these three technologies. objective this paper provide comprehensive review latest developments photocatalysis, electrocatalysis, photoelectrocatalysis for CO2 reduction. literature analysis findings showed that PC MIL-101(Cr)-Ag produced highest methane rate, Au10@ZIF-67 methanol while formic acid major product EC, especially by Zr-MOF catalysts, Ti/TiO2NT-ZIF-8 outstanding PEC performance. This highlights catalytic performance various MOF structures, focusing on influence synthesis methods, centers, operating conditions selectivity efficiency. While hold immense potential, challenges related stability, scalability, must be addressed industrial applications. Future research should focus optimizing systems enhanced durability, cost effectiveness, energy efficiency meet growing demand solutions.

Language: Английский

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Engineering of 2D/2D CoAl-LDH/Bi2MoO6 S-scheme heterojunction nanoflake films for efficient CO2 photoreduction to CO with high selectivity

Separation and Purification Technology, Journal Year: 2025, Volume and Issue: unknown, P. 132885 - 132885

Published: April 1, 2025

Language: Английский

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