A novel layered rare-earth hydroxides/polyvinyl alcohol hydrogel with multicolor photoluminescence behavior

Shao, Baiyi; Zhang, Xiaobao; Sang, Song; Guo, Aoping; Cui, Fangming; Yang, Xiaojing

doi:10.1016/j.eurpolymj.2021.110324

Cited by 11 publications

(2 citation statements)

References 35 publications

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“…14,15 Similarly, the numerous distinctive luminescent materials were designed with LRH gallery through host-guest tactics. [16][17][18] However, the reported phosphorescent materials based on LRH host matrix were only limited to various simple structural luminescent molecules. It is very difficult for large or complex prospective phosphors to settle in LRH gallery and acquire an admirable RTP emission.…”

Section: Introductionmentioning

confidence: 99%

Coordination-induced and tunable layered rare-earth hydroxide-complex intercalated nanohybrid phosphorescent photosensitizer and therapy

Zhao,

Lin,

Yang

et al. 2024

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

Coordination-induced and tunable layered rare-earth hydroxide-complex intercalated nanohybrid phosphorescent photosensitizer and therapy

Zhao,

Lin,

Yang

et al. 2024

RSC Adv.

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“…层状氢氧化物与阴离子叠层组装的无机-有机杂化材料也表现出了偏振荧光、上转换发射以及余辉发光等特性 [6][7] . 近来, 同属层状杂化材料类型的稀土层状氢氧化物(Layered Rare earth Hydroxides, 简称 LRHs)引起了研究者的广泛注意 , 与之相关的研究成果涉及发光 [8][9][10][11] 、离子检测 [12][13][14] 、环境 [15] 、催化 [16] 、药物检测和传输 [17][18] 等不同领域, 并且可被制成薄膜以及凝胶等多种形式的发光材料 [19][20][21] .…”

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Rare Earth Ions-Activated Hybrid Assemblies Fluorescent Systems Based on the Layered Lanthanum Hydroxides

Zuo¹,

Xu²,

Shi³

2022

Acta Chimica Sinica

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The layered rare earth hydroxides (LRHs) have recently been paid attention owing to the adjustable rare earth ions in the host and alterable anions in the gallery, which may be applied in adsorption, catalyst, fluorescence and detection fields. However, as far as we know, the studies of rare earth ions-activated layered lanthanum hydroxide (LLaH) fluorescent systems were seldom reported. In this paper, the hybrid assemblies (Eu/Tb)0.1La1.9(OH)5DS•H2O and Ce0.08La1.92(OH)5DS• H2O solid samples were first prepared with Eu(NO3)3, TbCl3, Ce(NO3)3•6H2O and La(NO3)3 solutions by hydrothermal process at 140 ℃ for 12 h, in which the interlayer was pillared with dodecyl sulfonate (DS − ) anions. Then, the DS − anions of the as-prepared (Eu/Tb)0.1La1.9(OH)5DS•H2O were exchanged with benzoate (BA − ) solution through microwave process, and the hybrid assemblies samples (Eu/Tb)0.1La1.9(OH)5BA•H2O were obtained. The X-ray diffraction (XRD) results indicate that the solid samples have superior crystallization and layered structure, and the interlayer distance is decreased from 3.2 nm to 1.9 nm after the ion-exchange reaction. The photoluminescence excitation spectra show that the excitation intensities in the ultraviolet (UV) region (≈280 nm) for (Eu/Tb)0.1La1.9(OH)5BA•H2O are much stronger than those for (Eu/Tb)0.1La1.9-(OH)5DS•H2O due to the strong absorption peak from BA − anion. Excited with 280 nm, the emission spectra exhibit the characteristic emission transitions of Eu 3 ＋ or Tb 3 ＋ ions, and the intensities of (Eu/Tb)0.1La1.9(OH)5BA•H2O are more than tenfold of (Eu/Tb)0.1La1.9(OH)5DS•H2O because of efficient sensitization effect of BA − . On the other hand, the (Eu/Tb)0.1La1.9(OH)5BA•H2O and Ce0.08La1.92(OH)5DS•H2O hybrid assemblies were exfoliated to colloidal solutions through ultrasound and centrifugation process in formamide solvent. It has been observed that the fluorescent color can be adjusted by mixing the colloid solutions of Eu0.1La1.9(OH)5BA•H2O and Tb0.1La1.9(OH)5BA•H2O in different volume ratios. Moreover, the fluorescent color can be changed with the three colloid components by varying the excitation wavelength. In particular, the white light can be achieved as excited with 280-290 nm UV light, exhibiting supreme photofunctional performances. The investigation will promote the effective combination of rare earth luminescence with layered materials.

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Study on the Recovery of Lutetium from Lutetium Yttrium Silicate Scrap by Molten NaOH

Zhao,

Wang,

Zhang

et al. 2024

Environmental Science and Engineering

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A novel layered rare-earth hydroxides/polyvinyl alcohol hydrogel with multicolor photoluminescence behavior

Cited by 11 publications

References 35 publications

Coordination-induced and tunable layered rare-earth hydroxide-complex intercalated nanohybrid phosphorescent photosensitizer and therapy

Coordination-induced and tunable layered rare-earth hydroxide-complex intercalated nanohybrid phosphorescent photosensitizer and therapy

Rare Earth Ions-Activated Hybrid Assemblies Fluorescent Systems Based on the Layered Lanthanum Hydroxides

Study on the Recovery of Lutetium from Lutetium Yttrium Silicate Scrap by Molten NaOH

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