Metal–organic framework radiochromic materials: Recent advances and applications

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 534, P. 216616 - 216616

Published: March 15, 2025

Language: Английский

---

Multiple Electron Transfer in Semiconductive Ternary D‐D'‐A Metal‐Organic Framework for Enhanced X‐Ray Detection and Imaging

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

Published: Aug. 22, 2024

Abstract Semiconductive metal–organic frameworks (MOFs) with donor–acceptor (D–A) characteristics have garnered attractive attention due to their capacity for separating and transferring photogenerated charges, making them promising candidates high‐performance X‐ray detectors. However, the low charge transfer efficiency between metal nodes organic ligands limits X‐ray‐to‐electricity conversion of these materials. Herein, an additional photoactive donor (D’) is introduced by incorporating a heavy atom‐containing polyoxometalate (POM) [α‐SiW 12 O 40 ] 4− into binary {[Ni·bcbp·(H 2 O) ]·(H 4 ·Cl} n (Ni‐bcbp, bcbp: H bcbp·2Cl = 1,1′‐bis(4‐carboxyphenyl)(4,4′‐bipyridinium) dichloride) MOF, resulting in semiconductive ternary D‐D'‐A framework {[Ni (bcbp) ·(H ·(DMA)]·(SiW )} (SiW@Ni‐bcbp, DMA: dimethylacetamide). The obtained material features unprecedented porous 8‐connected bcu‐net structure that accommodates nanoscale counterions, displaying uncommon optoelectronic responses. In contrast Ni‐bcbp, SiW@Ni‐bcbp exhibits distinctive photochromism robust responsiveness, which can be attributed synergistic effects electron reservoir multiple photoinduced originating from POMs. As result, detector based on demonstrates sensitivity 5741.6 µC Gy air −1 cm −2 detection limit 0.49 µGy s . Moreover, devices demonstrated capability producing clearness images, providing feasible stable solution constructing direct

Language: Английский

---

Fluorescence Visualization Quantitative Detection of Tetracycline and Nitrofurantoin in Food and Natural Water by Zn²⁺@Eu-bpdc Composite

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(42), P. 19652 - 19664

Published: Oct. 7, 2024

Quantitative detection of tetracycline (TC) and nitrofurantoin (NFT) in food water is importance for safety environmental protection. Herein, Zn2+ was introduced into a europium metal–organic framework Eu-bpdc (H2bpdc = 2,2′-bipyridyl-5,5′-dicarboxylic acid) to prepare composite Zn2+@Eu-bpdc, which developed as fluorescence sensor TC NFT. The mechanism concerns with bpdc2– ligand-to-Eu(III) charge transfer, the inner filter effect. Zn2+@Eu-bpdc ratiometric linear fitting equation I520/I618 1.94 × 104 M–1CTC, whose limit (LOD) 0.148 μmol·L–1 (μM); it also "turn-off" NFT (I0–I)/I 3.62 M–1CNFT LOD 0.0792 μM. can detect or lake water, honey, milk high accuracy. emission color changes paper-based depending on CTC CNFT reveal visualization detections With red green values input signals, smartphone-assisted on-site utilized recognize antibiotic residuals by self-programmed APP. promising intelligent platform

Language: Английский

---

Photofluorochromic Organic Supramolecular Compounds for Multiple Dynamic Anticounterfeiting

Inorganic Chemistry Frontiers, Journal Year: 2024, Volume and Issue: 11(23), P. 8350 - 8358

Published: Jan. 1, 2024

Photofluorochromic materials with highly efficient luminescence and color-changing behaviour displaying multiple dynamic anticounterfeiting secure information encryption.

Language: Английский

---

Metal–organic frameworks as optically stimulated luminescence dosimeter

Journal of Radioanalytical and Nuclear Chemistry, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Language: Английский

---

Ba-Sr fluoride borates as inorganic radiochromic materials

Radiation Measurements, Journal Year: 2024, Volume and Issue: unknown, P. 107352 - 107352

Published: Dec. 1, 2024

Language: Английский

---