Dual‐Site Trigger Electronic Communication Effects to Accelerate H2O2 Activation for Colorimetric Sensing of Uranyl Ions in Seawater
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202406380
Abstract: Efficient activation of hydrogen peroxide (H2O2) through biomimetic catalysis still faces a major challenge. In this work, inspired by the catalytic pocket of natural peroxidase, Cu single atom (CuSA) and AuCu nanoparticles (AuCuNPs) anchored on… read more here.
Keywords: activation colorimetric; h2o2 activation; electronic communication; activation ... See more keywords
In Situ Synthesis of Polyamidoxime Chains Inside the Negative‐Charged Confining Fields for Efficient Adsorption of Uranyl Ions
Sign Up to like & getrecommendations! Published in 2024 at "Advanced Functional Materials"
DOI: 10.1002/adfm.202413729
Abstract: Polyamidoxime (PAO) and its derivatives are widely regarded as promising adsorbents for uranium extraction from seawater. However, their close‐packed structure encapsulates a large number of adsorption sites and slows down the transfer rate of uranyl… read more here.
Keywords: synthesis polyamidoxime; situ synthesis; polyamidoxime chains; adsorption ... See more keywords
Complexes of Uranyl Ions with Aromatic Di- and Tetracarboxylates Involving [Ni(bipy)n]2+ (n = 2, 3) Counterions
Sign Up to like & getrecommendations! Published in 2017 at "European Journal of Inorganic Chemistry"
DOI: 10.1002/ejic.201701086
Abstract: Four di- and tetracarboxylate ligands based on aromatic platforms have been used to synthesize four uranyl ion complexes under solvo-hydrothermal conditions and in the presence of nickel(II) cations and 2,2ʹ-bipyridine (bipy). The four complexes [Ni(bipy)$_3$][(UO$_2$)$_2$(bdc)$_3$].4H$_2$O… read more here.
Keywords: aromatic tetracarboxylates; uranyl ions; ions aromatic; bipy ... See more keywords
Synthesis and characterization of chitosan–vermiculite composite beads for removal of uranyl ions: isotherm, kinetics and thermodynamics studies
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Radioanalytical and Nuclear Chemistry"
DOI: 10.1007/s10967-020-07481-2
Abstract: In this study, a new material containing Chitosan (Ch)–Vermiculite (V) composite beads was synthesized with epichlorohydrin cross-linking agent and used to remove uranyl ions from the aqueous solution. The prepared new material was characterized by… read more here.
Keywords: uranyl ions; thermodynamics; composite beads; chitosan vermiculite ... See more keywords
Colorimetric detection uranyl ions based on the enhanced peroxidase-like activity by GO adsorption.
Sign Up to like & getrecommendations! Published in 2020 at "Journal of environmental radioactivity"
DOI: 10.1016/j.jenvrad.2020.106299
Abstract: Based on the fact that uranyl ions (UO22+) adsorbed on GO can enhanced the peroxidase-like activity of graphene oxide (GO), a novel colorimetric strategy for visualizing quantitative determination of uranyl ions was established. The peroxidase-like… read more here.
Keywords: like activity; peroxidase like; enhanced peroxidase; uranyl ions ... See more keywords
Ultra-trace level chemosensing of uranyl ions; scuffle between electron and energy transfer from perovskite quantum dots to adsorbed uranyl ions
Sign Up to like & getrecommendations! Published in 2020 at "Microchemical Journal"
DOI: 10.1016/j.microc.2020.104808
Abstract: Abstract This work attempts to address the challenge of trace level detection of uranyl ions using highly fluorescent perovskite quantum dots. The fluorescent probe CsPbBr3 perovskite quantum dots (PQDs) in toluene, synthesized via hot-injection method… read more here.
Keywords: perovskite quantum; uranyl ions; energy; level ... See more keywords
The contribution of photoinduced charge-transfer enhancement to the SERS of uranyl(VI) in a uranyl-Ag2O complex
Sign Up to like & getrecommendations! Published in 2019 at "Science Bulletin"
DOI: 10.1016/j.scib.2019.01.025
Abstract: Charge-transfer (CT) is an important enhancement mechanism in the field of surface-enhanced Raman scattering (SERS) that typically increases the Raman intensity of molecules by as much as 10-100 times. Herein, a low-cost Ag2O aggregates substrate… read more here.
Keywords: sers uranyl; ag2o; uranyl ions; charge transfer ... See more keywords
Redox Potentials of Uranyl Ions in Macrocyclic Complexes: Quantifying the Role of Counter-Ions
Sign Up to like & getrecommendations! Published in 2023 at "ACS Omega"
DOI: 10.1021/acsomega.3c01244
Abstract: Several uranyl ions strapped with Schiff-base ligands in the presence of redox-innocent metal ions are synthesized, and their reduction potentials are recently estimated. The change in Lewis acidity of the redox-innocent metal ions contributes to… read more here.
Keywords: metal ions; role; redox potentials; potentials uranyl ... See more keywords
In Situ Surface-Enhanced Raman Spectroscopy Detection of Uranyl Ions with Silver Nanorod-Decorated Tape
Sign Up to like & getrecommendations! Published in 2019 at "ACS Omega"
DOI: 10.1021/acsomega.9b01574
Abstract: Surface-enhanced Raman spectroscopy (SERS) has been utilized for rapid analysis of uranyl ions (UO22+) on account of its fast response and high sensitivity. However, the difficulty of fabricating a suitable SERS substrate for in situ… read more here.
Keywords: detection; uranyl ions; surface; sers tape ... See more keywords
Preparation of ZnNiAl-LDHs microspheres and their adsorption behavior and mechanism on U(VI)
Sign Up to like & getrecommendations! Published in 2021 at "Scientific Reports"
DOI: 10.1038/s41598-021-01133-5
Abstract: Ternary zinc-nickel-aluminum hydrotalcites (ZnNiAl-LDHs) were prepared by hydrothermal synthesis. The structure and morphology of the materials were characterized using X-ray diffraction (XRD), fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), nitrogen adsorption–desorption (BET) and… read more here.
Keywords: adsorption; uranyl ions; ldhs uranyl; spectroscopy ... See more keywords
Selective separation of uranyl ions from some lanthanide elements using a promising β-enaminoester ligand by cloud point extraction
Sign Up to like & getrecommendations! Published in 2022 at "RSC Advances"
DOI: 10.1039/d2ra00274d
Abstract: For uranyl extraction, a distinctive chelating ligand, namely ethyl 2-amino-6-hydroxy-5-(4-methoxyphenyldiazenyl)-4-phenyl-4H-benzo[f]chromene-3-carboxylate, has been synthesized and characterized using FT-IR, NMR, and ESI-MS. Subsequently, a cloud point extraction (CPE) protocol has been developed for the selective separation of… read more here.
Keywords: point extraction; geometry; uranyl ions; separation ... See more keywords