Photoluminescence of Zn5(CO3)2(OH)6 nanoparticles synthesized by utilizing CO2 and ZnO water slurry

Yanase, Ikuo; Konno, S.

doi:10.1016/j.jlumin.2019.05.030

Cited by 10 publications

(2 citation statements)

References 38 publications

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“…This is owing to the presence of defects of different nature, most of which are related to oxygen vacancies and to interstitial zinc both in its ground and ionic states [46,47]. The absorption of zinc hydroxycarbonate is known to lie far in the UV range (Eg = 5.5 eV) and does not affect the absorption band edge of ZnO [48]. ALT of the colloid was found to have no significant effect on its absorption spectrum.…”

Section: Optical Properties Of Npsmentioning

confidence: 99%

Plasmonic Nanocomposites of ZnO-Ag Produced by Laser Ablation and Their Photocatalytic Destruction of Rhodamine, Tetracycline and Phenol

Fakhrutdinova,

Volokitina,

Kulinich

et al. 2024

Materials

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Hydrosphere pollution by organic pollutants of different nature (persistent dyes, phenols, herbicides, antibiotics, etc.) is one of the urgent ecological problems facing humankind these days. The task of water purification from such pollutants can be effectively solved with the help of modern photocatalytic technologies. This article is devoted to the study of photocatalytic properties of composite catalysts based on ZnO modified with plasmonic Ag nanoparticles. All materials were obtained by laser synthesis in liquid and differed by their silver content and preparation conditions, such as additional laser irradiation and/or annealing of produced powders. The prepared ZnO-Ag powders were investigated by electron microscopy, X-ray diffraction and UV-Vis spectroscopy. Photocatalytic tests were carried out with well- known test molecules in water (persistent dye rhodamine B, phenol and common antibiotic tetracycline) using LED light sources with wavelengths of 375 and 410 nm. The introduction of small concentrations (up to 1%) of plasmonic Ag nanoparticles is shown to increase the efficiency of the ZnO photocatalyst by expanding its spectral range. Both the preparation conditions and material composition were optimized to obtain composite photocatalysts with the highest efficiency. Finally, the operation mechanisms of the material with different distribution of silver are discussed.

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Section: Optical Properties Of Npsmentioning

confidence: 99%

Plasmonic Nanocomposites of ZnO-Ag Produced by Laser Ablation and Their Photocatalytic Destruction of Rhodamine, Tetracycline and Phenol

Fakhrutdinova,

Volokitina,

Kulinich

et al. 2024

Materials

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show abstract

“…2a shows the DRUV-Vis and mirror-imaged DRCD spectra of antipodal CMHZC@S. Taking l -CMHZC@S as an example, a negative exciton coupling centered at 205 nm and a negative shoulder at 215–380 nm could be observed from the DRCD spectrum, which coincides with the DRUV-Vis absorbance attributed to the overlap of various HZC characteristic absorption bands. The absorption in the 190–215 nm range could correspond to the n–π and π–π* electron transitions of carbonate; 28 the bands at 215–380 nm would be attributed to the charge transfer of C 2p–O 2p → O 2p–H 1s–Zn 3d, 29 which mainly compose the electron transition from the conductor band bottom to the valence band top instead of the organic residues (Fig. S9, ESI†).…”

mentioning

confidence: 99%

Chiral mesostructured hydroxide zinc carbonate for enantioseparation in high performance liquid chromatography

Liu

Han

et al. 2022

Chem. Commun.

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Shielding Fluoride Ion Basicity through Diurea Coordination for Nonaqueous Fluoride Shuttle Batteries

Wang,

Lei,

Liu

et al. 2024

Angewandte Chemie

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The strong basicity of fluoride ions leads to detrimental nucleophilic attack on organic components in the electrolytes, such as β‐hydrogen elimination reactions with organic cations and solvents, converting “naked” F− into corrosive and unstable bifluoride (HF2−) ions. These reactions significantly constrain the choice of suitable solvents and salts to develop electro(chemical) stable fluoride ion electrolytes. In this work, we replaced the triple water ligands typically present in industrial organic fluoride salts with dual 1,3‐diphenylurea (DPU) coordination via hydrogen bonding interaction. This modification successfully suppressed the Lewis basicity of fluoride ions, providing long‐term chemical stability (over 1000 hours) across a wide range of aprotic solvents, a broadened electrochemical stability window (‐2.5 ~ 0.9 V vs. Ag+/Ag) and high ionic conductivity (1.7 mS cm−1) at room temperature. Additionally, the weaker hydrogen bonding in F−‐DPU coordination, compared to the conventional boron‐based anion acceptor (AA) strategy that relies on intensive Lewis acid‐base interactions, facilitates faster (de)fluorination kinetics at the electrode. The proposed room temperature fluoride ion batteries sustain improved electrochemical performance by pairing with the Pb‐PbF2 anode and BiF3 or Ag cathode.

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Photoluminescence of Zn5(CO3)2(OH)6 nanoparticles synthesized by utilizing CO2 and ZnO water slurry

Cited by 10 publications

References 38 publications

Plasmonic Nanocomposites of ZnO-Ag Produced by Laser Ablation and Their Photocatalytic Destruction of Rhodamine, Tetracycline and Phenol

Plasmonic Nanocomposites of ZnO-Ag Produced by Laser Ablation and Their Photocatalytic Destruction of Rhodamine, Tetracycline and Phenol

Chiral mesostructured hydroxide zinc carbonate for enantioseparation in high performance liquid chromatography

Shielding Fluoride Ion Basicity through Diurea Coordination for Nonaqueous Fluoride Shuttle Batteries

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