JOURNAL OF ALLOYS AND COMPOUNDS
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2015
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IF 2.999
Li Lv,Junzhong Wang,Wei Wang,Limin Han
In this paper, Y 3+ ions doped CaMoO 4 :Eu 3+ with controlled microstructures were prepared via a hydrothermal method . All samples were fully characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), UV–vis diffuse reflectance spectroscopy, and photoluminescence measurement. The luminescent performance improvement aroused by doping was systematically investigated after inducing Y 3+ as co-doping ions in CaMoO 4 :Eu 3+ lattice. It is found that the lattice of Y 3+ doped CaMoO 4 :Eu 3+ nanocrystals contracted with increasing the Y 3+ concentration, resulting in a red shift of 1 A 1 → 1 T 1 transition from the valence band to the conduction band. Meanwhile, excitation band at 300 nm corresponding to the typical 1 A 1 → 1 T 1 transition also shifted to lower energy, originating from the charge-transfer between MoO 4 2− group and Eu 3+ ions. When the Y 3+ doping concentration was less than 0.05, the quantum efficiency of Y 3+ doped CaMoO 4 :Eu 3+ nanocrystals was all superior to pure CaMoO 4 :Eu 3+ nanocrystals, which can be assigned to the lattice structure contraction, co-doping effect, doping concentration variation. However, as the content of Y 3+ ions further increasing, Y 3+ ion should act as a luminescence killer, and therefore resulting in a nonradiative de-excitation.
研究领域:
材料科学
·
光学
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DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
·
2023
·
IF 13.6
Yao Liu,Qiang Xue,Zeyu Liu,Lin He,Fei Liu,Haijiao Xie
The rapid detection of rare earth elements is crucial in various fields, such as materials science, biomedicine, and water quality assessment . However, no studies have reported on the detection of yttrium (Y) using electrochemical sensor-based devices. In this study, we present an innovative method for detecting Y(III) ions in aquatic environments using an electroanalytical detection platform. We have developed a complexation catalytic method that integrates trans-1,2-cyclohexanediaminetetraacetic acid (CyDTA) and silver nanoparticles (Ag NPs), thereby enhancing the adsorption and electrochemical response of Y(III) ions. The modified electrode demonstrates an 18-fold increase in the response signal of the Y(III) reduction peak compared to the bare LIG electrode. To elucidate the electrocatalytic mechanism, we conducted various interface characterization methods and DFT simulations. The Ag-CyDTA/LIG electrode exhibits excellent detection performance, with a broad linear dynamic range of 1 × 10 −6 to 0.01 g/L and an exceptionally low detection limit of 0.02 μg/L. Significantly, we successfully employed the electrochemical sensing platform to analyze real water samples from rare earth ore, marking the first report on the voltammetric detection of Y(III) ions in real water samples using a flexible electrode. These findings offer a promising technical solution for the practical detection of Y(III) ions.
研究领域:
环境科学
·
分析化学
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DOI
PubMed
高影响因子
NANO
·
2019
·
IF 1.293
Renxin Xu,Huan Yang,Huajun Sun,Jing Zhou,Zhijun Yue,Xinhua Gao
Mg 0 . 2 Mn 0 . 8 Y x Fe 2 − x O 4 ( x = 0 . 0 0 0 , 0.025, 0.050 and 0.075) nanocrystalline is synthesized via hydrothermal technique. Single cubic spinel phase is confirmed by XRD and the formation of Mg 0 . 2 Mn 0 . 8 Y x Fe 2 − x O 4 is verified by EDS. The average size of the nanoferrites is around 80 nm, which is examined by TEM image. Y 3 + substituted Mg-Mn nanoferrites exhibit low saturation magnetization ( M s ) and coercivity ( H c ) . Especially, the nanoferrites with x = 0 . 0 7 5 show the lowest M s and H c of 46.96 emu/g and 12.04 Oe, respectively. The ferrite composites present that the resistivity and the magnetic loss are less than 4 . 5 × 1 0 7 Ω ⋅ cm and 0.7 in the range of 2–18 GHz, respectively. The low coercivity and high resistivity indicate that the addition of Y 3 + contributes to the synthesis of the excellent soft magnetic materials.
研究领域:
材料科学
·
电磁学
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DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2024
·
IF 5.2
Qi You,Mu Liu,Chengxiang Yang,Xuan Zhou,Wei Liu,Jinkai Li,Xuchuan Jiang
Both Al 3+ and Y 3+ ions co-doped Na 4 CaSi 3 O 9 :Bi 3+ ,Eu 3+ (NCSO:Bi 3+ ,Eu 3+ ) series phosphors were synthesized by a high temperature solid-phase method, and characterized by various advanced structural and spectral instruments. The impact of different doping ion concentrations on the luminescent behavior of the phosphors was also investigated. It is found that an ion substitution strategy is useful for enhancing the luminescence performance of the as-obtained NCSO:Bi 3+ ,Eu 3+ phosphors. The results show that doping a certain amount of Al 3+ ions into the NCSO:0.01Bi 3+ ,0.1Eu 3+ phosphor leads to a significant red-shift in the blue emission spectrum of Bi 3+ up from 350 to 405 nm and an increase in the half-peak width by 21 nm, better spectral match for plant response. Furthermore, doping Y 3+ ions into the matrix also enhances the sensitization effect of Bi 3+ ions, resulting in a significant increase in luminous intensity. X-ray powder diffraction (XRD) was used to verify the crystal structure and phase purity of the synthesized phosphors. The mechanism of Al 3+ and Y 3+ doping affecting the emission spectrum is further discussed through the structure refinement. Finally, by comparing with the absorption spectra of plant growth pigments, it is found that the developed phosphors show great potential in promoting light controlling for plant growth.
研究领域:
材料科学
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光学
·
植物学
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DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
·
2025
·
IF 5.4
Zuodong Liu,Tingting Xiong,Chengwei Zhang,Qiyue Pan,Guo Zhang,Rui Liu,Yongsheng Yu,Peng Liu,Qiangshan Jing
A series of SrF 2 phosphors co-doped with Er 3+ and Y 3+ possessing regular polygon shapes were fabricated after calcination as-synthesized particles at 600 °C for 2 h. the crystal structure and morphology of the Er, Y:SrF 2 phosphors were identified. By incorporating the non-active Y 3+ ions as buffers into Er:SrF 2 phosphors, intense green up-conversion luminescence with modulating emission colors from reddish-yellow towards the greenish area is achieved. The two-photon up-conversion mechanism was also identified by the quadratic dependence between the luminescence intensities and 808 nm excitation source powers. The up-conversion luminescence characteristics indicate that Y 3+ buffers significantly enhance the 2 H 11/2 / 4 S 3/2 → 4 I 15/2 transitions, leading to an approximately five-fold increase in the luminescence intensities ratio R(g/r) of the green to red emissions in Er:SrF 2 phosphors.
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高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Shaobo Ren,Xubing Yang,Liwen Tang,Xueyu Du,Mengting Li,Xueqiong Yin
Recovery of rare earth metal is a global concern for resource-efficient application and high-tech industry development. In this study, a new Y 3+ adsorbent, namely chitosan-based Y 3+ -imprinted hydrogel with reversible thermo-responsibility (CYIT) was synthesized, using Y 3+ as the template ion. The obtained CYIT was comprehensively characterized by means of DSC, FTIR, LRS, TGA, SEM, and XPS. As revealed from the results, CYIT possesses stable reversible thermo-responsibility confirmed by the phase transition temperature ranging from 29.2 °C to 38.4 °C. Its maximum adsorption capacity on Y 3+ is up to 160.0 mg/g, much higher than the corresponding performance of similar hydrogels. More significantly, this type of adsorbent could be effectively regenerated by simply leaching with cold water and the desorption efficiency reached 96.2 % after wash by cold water at 15 °C for 25 min. Besides, the remarkable reusability should also be highlighted, for the adsorption capacity and desorption efficiency remained as 124.8 mg/g and 90.0 %, respectively, after five adsorption–desorption cycles. In the coexistence of other interfering metal ions (including La 3+ , Gd 3+ , Cu 2+ , Al 3+ , and Fe 3+ ), CYIT also exhibited better adsorption selectivity than the corresponding adsorbent without Y 3+ -imprinting.
研究领域:
材料科学
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环境科学
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化学工程
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DOI
高影响因子
OPTICAL MATERIALS
·
2025
·
IF 4.2
Zuodong Liu,Qiyue Pan,Chengwei Zhang,Guo Zhang,Rui Liu,Tingting Xiong,Yongsheng Yu,Peng Liu,Qiangshan Jing
Er, Y:SrF 2 particles co-doped with various Y 3+ buffer ions were prepared after calcined as-synthesized particles at 600 °C, and the residual nitrates and –OH disappear drastically after calcination treatment. XRD and FE-SEM measurements were proposed to identify the crystal structures and morphologies of the Er, Y:SrF 2 particles, respectively. The emission spectra illustrated two distinct emission bands, which can be attributed to the 2 H 11/2 / 4 S 3/2 → 4 I 15/2 and 4 F 9/2 → 4 I 15/2 transitions of Er 3+ ions, respectively. The dependence of green to red emission intensity ratio R(g/r) and the decay curves on the Y 3+ buffer ions co-doping contents were investigated to elucidate the emission mechanisms. It was observed that the 2 H 11/2 / 4 S 3/2 → 4 I 15/2 transitions were enhanced relative to 4 F 9/2 → 4 I 15/2 red-emitting transition under 488 nm and 980 nm excitation in high-symmetry Er, Y:SrF 2 particles after co-doped with Y 3+ buffer ions.
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高影响因子
APPLIED SURFACE SCIENCE
·
2022
·
IF 7.392
Li Chen,Yitan Wang,Jiangdong Dai,Minjia Meng,Xiaohui Dai,Jianming Pan
Molecular imprinting technology has been proved an efficient strategy for separation, however ion imprinting was not so high-performance. Pure aqueous phase synthesis and ligand assistance are two prominent improvement strategies so far. This article developed a novel rare earth yttrium(Y) ion imprinted membrane (Y-IIM) in pure aqueous phase, and applied a high-performance rare earth extractant Cyanex272 as ligand in membrane basement to confine the imprinted polymerization process. Firstly, polymer inclusion membrane (PIM) containing copolymer poly(vinyl alcohol-co-ethylene) as hydrophilic additive and Cyanex272 as interior ion ligand was synthesized. Then ion imprinting in aqueous phase was initiated through redox polymerization. Results confirmed that Y-IIMs performed superior hydrophility and Cyanex272 presented improved thermal stability. Imprinted aggregates distributed separately on membrane surfaces and inner walls, as a result of the confinement by the coordination between Y and Cyanex272 ligand. The adsorption capacity on Y was 3 times that of non-imprinted membranes, and the Y-IIMs exhibited superior permeation ability for Y than Ho and Er, indicating the realization of expected specific recognition affinity for Y through ligand confinement and aqueous medium synthesis.
研究领域:
化学工程
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材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
·
2025
·
IF 4.1
Xin Zhang,Jiayi Zhang
Ultra-thin copper foil is critical for high-density circuits and lithium-ion battery current collectors, yet surface roughness, brittleness, and inhomogeneous grains limit performance. This study demonstrates that rare-earth yttrium ions (Y 3+ ) in acidic copper sulfate electrolyte optimize microstructure and enhance properties of electrodeposited copper foil. At 0.6 mg/L Y 3+ , grain refinement (0.4–0.9 μm), intensified (220) plane (T C = 1.85), and minimized surface defects were achieved via adsorption-mediated growth inhibition. The optimized foil exhibited 63 % lower corrosion current density (0.47 μA/cm 2 ) and 3.5 times higher charge transfer resistance versus Y 3+ -free counterparts. Y 3+ suppresses dendritic growth while promoting preferential orientation, reconciling high strength, corrosion resistance, and interfacial stability. This work provides a novel rare-earth-based strategy for manufacturing high-performance copper foils in advanced electronics and energy storage.
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高影响因子
MICROPOROUS AND MESOPOROUS MATERIALS
·
2021
·
IF 5.455
Pusheng Liu,Ying Cui,Jianyu Wang,Xiaohui Du,Haitao Zhang,Adrian Humphries,Mingjun Jia,Jihong Yu
Rare earth (RE)-exchanged zeolite Y is the major active component of fluid catalytic cracking (FCC) catalysts. Herein, a series of yttrium (Y 3+ )-exchanged zeolites Y was prepared by the ion-exchange method, and the location of Y 3+ ions in the Y 3+ -exchange zeolite NaY was determined by fitting synchrotron radiation X-ray powder diffraction (XRPD) pattern combined with the infrared spectra in the hydroxyl stretching region. In analogy to lanthanum (La 3+ )-exchanged zeolite Y, Y 3+ ions were preferentially located inside the sodalite units near the double six-membered rings (D6R's), octahedrally coordinating to three framework oxygens and to three H 2 O molecules (or OH groups) in close proximity. The substitution of Y 3+ ions for counter-ions Na + caused a noticeable shrinkage of the unit cell due mainly to the relatively small ionic radius and high charge density of Y 3+ ions. As a consequence, the Y 3+ -exchanged HY-based FCC catalyst exhibited improved steam stability, and higher selectivity for high-value products (liquefied petroleum gas and C 5 +gasoline) in n-docosane cracking compared with the La 3+ -exchanged HY-based catalyst.
研究领域:
化学工程
·
催化材料科学
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DOI
高影响因子
MICROCHIMICA ACTA
·
2022
·Vol. 189
·期 9
·1-8
·
IF 6.408
Chen Haiyan,Li Qiaoyin,You Shumin,Huang Xuemin,Fan Chunmei,Lin Zhenyu,Qiu Bin
A ratiometric fluorescence probe is proposed for sensitive and visual detection of tetracyclinee (TC) based on cascade fluorescence signal amplification induced by bovine serum albumin–stabilized copper nanoclusters (BSA-CuNCs) and yttrium ions (Y 3+ ). TC can combine with Y 3+ to form the complex (TC-Y 3+ ) to enhance the fluorescence of TC at 515 nm. Then, positively charged TC-Y 3+ and negatively charged BSA-CuNCs was bonded together by electrostatic interactions to achieve the fluorescence resonance energy transfer (FRET) process. With the increase of TC concentration, the fluorescence intensity of TC-Y 3+ at 515 nm (F 515 ) gradually increased; meanwhile, the fluorescence intensity of BSA-CuNCs at 405 nm (F 405 ) decreased gradually. The ratio of F 515 and F 405 was used for the quantitative determination of TC. The linear range of the constructed fluorescent probe is 1.0 to 60.0 μM, and the limit of detection is 0.22 μM. The method was successfully applied to the determination of TC in spiked milk with recoveries ranging from 94.3 to 112%. Furthermore, the color of this platform can be observed from dark violet to bright green under the UV lamp. Since the response time of the reaction is less than 10 s, an intelligent sensing platform based on the use of the smartphone as image acquisition equipment was also established to realize rapid on-site and portable detection of TC through the colorimetric recognition application. Graphical abstract
研究领域:
分析化学
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环境科学
·
生物技术
·
食品安全
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）