Diverse Nitrogen Functional Sites Decorated Covalent Organic Framework Nanotrap Boosting Iodine Capture and Gold Recovery

ACS Materials Letters, Год журнала: 2024, Номер 6(9), С. 4230 - 4239

Опубликована: Авг. 19, 2024

With the development of nuclear energy and widespread use precious metals, threat to environment human health from radioactive iodine isotopes metal ions has increased. Therefore, efficient adsorbents for pollutants metals is crucial. Herein, a novel nitrogen-rich covalent organic framework (TPDA-DPTA-COF) containing tertiary amines, imine linkages, pyridine units designed N,N,N′,N′-tetrakis(4-aminophenyl)-1,4-benzenediamine (TPDA) 2,5-di(pyridin-4-yl)terephthalaldehyde (DPTA). TPDA-DPTA-COF exhibits excellent performance in capture (6.85 g g–1 I2 vapor 2570 mg solution n-hexane) gold recovery (3014 Au(III) HAuCl4 solution) due nanotrap effect arising nanoporous structure. Even dilute acid leachate discarded CPUs, exceptional selective extraction ability toward Au(III). The unique structure makes powerful adsorbent Au(III), which paves promising application waste treatment resource recovery.

Язык: Английский

---

Differentiated Intra‐Ligand Charge Transfer Boosting Multicolor Responsive MOF Heterostructures as Robust Anti‐Counterfeiting Labels

Advanced Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 13, 2024

Metal-organic framework (MOF) heterostructures with hybrid architectures and abundant functional sites possess great potential applications in advanced information security, yet still suffer from the harsh stimuli mechanisms restrained emission control. Herein, differentiated design strategy on intra-ligand charge transfer is first reported to realize smart-responsive multicolor MOF as robust anticounterfeiting labels. Designed similar blocks are integrated via time-dependent epitaxial growth form heterostructures. Different numbers of electron-donating groups offer distinct space regulation torsion ligands, which trigger diverse responsive emissions under same mild stimuli, thus generating multiple tunable color patterns These spatial-resolved stable modes permit encoding fingerprint information, further functions anti-counterfeiting labels high-security convert states. results a promising route for function-oriented exploitation heterosystems anticounterfeiting.

Язык: Английский

---

Fabrication of superporous cryogels with amidoxime chelation sites and customizable 3D printing for targeted palladium recovery from secondary resources

Journal of Hazardous Materials, Год журнала: 2024, Номер 481, С. 136532 - 136532

Опубликована: Ноя. 16, 2024

Язык: Английский

---

Recovery of palladium from solution by defective Carbon nitride and Regenerating as a hydrogenation catalysis

Separation and Purification Technology, Год журнала: 2025, Номер unknown, С. 131685 - 131685

Опубликована: Янв. 1, 2025

Язык: Английский

---

Microenvironment Modulation of Two-dimensional Defective Carbon Nitride with Extended Nanoporous Furnished Oxygen-enriched Sites for Efficient Recovery of Rare Earth Elements

Journal of Hazardous Materials, Год журнала: 2025, Номер 489, С. 137568 - 137568

Опубликована: Фев. 10, 2025

Язык: Английский

---

CO₂‐Responsive Smart Wood Scaffold for Natural Organic Matter Removal without Secondary Pollution

Advanced Materials, Год журнала: 2025, Номер unknown

Опубликована: Май 16, 2025

Abstract Ensuring drinking water safety remains a critical challenge, particularly when treating complex sources, due to secondary pollution caused by active chemical additives. Herein, novel CO 2 ‐responsive smart wood scaffold that leverages non‐toxic activation is developed achieve highly efficient removal of carcinogenic natural organic matter (NOM) and broad‐spectrum microbial disinfection without requiring additional agents. Unlike conventional purification techniques face safety‐efficacy trade‐off, the multi‐stage offers exceptional tunability in NOM abatement across diverse environmental conditions, including variable chemistry, composition, high salinity, real‐world sources. The purified meets stringent standards (e.g., UV 254 reduction, dissolved carbon removal, bacterial elimination). It found adsorption mainly originates from strong stable ‐triggered cation−π interaction between surface aromatic groups, as revealed via high‐resolution mass spectrometry direct intermolecular force measurements. This ecofriendly contamination‐free strategy provides transformative approach overcoming challenges purification, offering scalable sustainable platform for applications beyond.

Язык: Английский

---

Tailoring the coordination microenvironment of electrospun nanofibers for the separation of thorium ions from ore wastewater

Journal of Colloid and Interface Science, Год журнала: 2025, Номер 697, С. 137957 - 137957

Опубликована: Май 21, 2025

Язык: Английский

---

Conjugated Porous Organic Polymers Featuring Both Soft–Hard Combined Coordination Sites and Photoelectrochemical Properties for Palladium Capture and Subsequent Photocatalysis

Inorganic Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Сен. 23, 2024

Palladium (Pd) capture from high-level liquid waste for subsequent photocatalytic applications is desirable the development of nuclear energy and reutilization valuable resources. Herein, we approach our design with a unique porous organic polymer containing thiazolo[5,4-

Язык: Английский

---

Synergistic modulation of interfacial and coordination microenvironment for highly efficient uranium extraction

Chemical Engineering Journal, Год журнала: 2024, Номер 499, С. 156537 - 156537

Опубликована: Окт. 11, 2024

Язык: Английский

---