JOURNAL OF HAZARDOUS MATERIALS
·
2024
·
IF 12.2
Yuyu Zhang,Tao Zhang,Wanling Cai,Gary Owens,Zuliang Chen
While microbial technologies, which are considered to be environmentally friendly, have great potential for the recovery of rare earth elements (REEs) from mining wastewater, their applications have been restricted due to a lack of efficient biosorbents. In this study, a strain of Pseudomonas psychrotolerans isolated from yttrium-enriched mine soil was used to recover yttrium (Y(III)) from rare-earth mining wastewater. At an initial Y(III) dose of 50 mg L −1 , the amount of Y(III) adsorbed by P. psychrotolerans reached 99.9 % after 24 h. Various characterization techniques revealed that P. psychrotolerans adsorbed Y(III) mainly through complexation of oxygen-containing functional groups and electrostatic interactions. A high level of adsorption efficiency (>99.9 %) was maintained after five consecutive adsorption/desorption cycles, indicating that P. psychrotolerans was highly reusable. While the efficiency of adsorbing Y(III) by P. psychrotolerans decreased (34.4 %) in actual rare earth mining wastewater, selectivity toward other REEs (≤ 18.4 %) was still observed. Consequently, this study provides a promising green, environmentally friendly and sustainable microbial approach for the selective recovery of REEs from rare earth wastewater.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANICA CHIMICA ACTA
·
2025
·
IF 3.2
Zhi Shen,Qi-Yang Li,Lin-Xi Qin,Meng-ting Fan,Qiang Zhao
In order to better study the properties of rare earth europium complexes in terms of fluorescence and probes, in this work, 5-(4-carboxyphenoxy)isophthalic acid (H 3 cpipa) and rare metal ion Eu 3+ were used to synthesize metal complex by solvothermal reaction. Then complex [(Eu 2 (cpipa) 2 ·4H 2 O)·8H 2 O] n (1) was synthesized. Data on the structure acquired via an X-ray single-crystal diffractometer indicates that complex 1 is a three-dimensional network structure with a hollow structure. Moreover, solid-state fluorescence tests were carried out on H 3 cpipa and complex 1 . Fluorescence recognition studies were conducted on complex 1 in dispersed systems. The solid-state fluorescence results show that complex 1 has excellent fluorescence properties, with higher fluorescence intensity than the ligand, and it exhibits the bright characteristic red light of europium under fluorescent lamp. Fluorescence recognition studies have shown that complex 1 in dispersed systems serves as a fluorescent probe for both solvent molecule recognition and cation recognition. In solvent molecule systems, complex 1 exhibits good recognition of acetone, while in cation systems, complex 1 shows good selectivity for Fe 3+ ions
✓ 已验证
产品关联
DOI
高影响因子
Journal of Environmental Chemical Engineering
·
2025
·
IF 7.2
Xin Xie,Guilian Li,Shuo Geng
Bismuth oxide, a promising electrocatalyst for the formate production via electrocatalytic carbon dioxide reduction reaction (eCO 2 RR), suffers from structural instability at high overpotentials due to reduction-induced deactivation. This study proposes an innovative yttrium (Y) doping strategy that stabilizes Bi 2 O 3 through Y-Bi orbital interactions, effectively suppressing cathodic reduction during eCO 2 RR. Remarkably, the optimized 3 % Y-doped Bi 2 O 3 catalyst delivers outstanding performance, achieving a record formate Faraday efficiency (FE) of 97.9 % at −1.05 V vs. reversible hydrogen electrode (RHE) and maintaining FE > 90 % over a 350 mV potential window. Notably, it sustains FE exceeding 90 % even at industrial-grade current densities up to −160 mA cm −2 in flow cell configuration. Through systematic in situ spectroscopic characterization, density functional theory (DFT) calculations, and electrochemical analysis, we reveal that Y doping modulates the Bi−O electronegativity difference, which simultaneously stabilizes the Bi 3+ oxidation state and enhances adsorption of the critical *OCHO intermediate. This dual-function mechanism establishes a new paradigm for designing stable metal oxide electrocatalysts toward efficient formate electrosynthesis.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
·
2025
·
IF 6.2
Ya Qin,Yuefei Long,Yunying Zhu,Lei Zhao,Qingwei Song,Zhongjie Shen,Yanju Wang,Deyu Hu
Potato virus Y (PVY) is among the top ten plant viruses globally, posing a significant threat to crop yield and quality. Current chemical control agents are limited in variety and offer suboptimal efficiency. To address this, we designed and synthesized a series of new vanillin-based α-amino phosphonate derivatives and evaluated their anti-PVY activities and underlying mechanisms. Among the tested compounds, C2 demonstrated the highest protective activity (EC50 = 198 μg/mL), outperforming existing agents such as ningnanmycin (NNM, EC50 = 537 μg/mL), dufulin (EC50 = 495 μg/mL), and vanisufane (EC50 = 210 μg/mL). The α-amino phosphonate moiety in C2 contributed to its enhanced protective and inactivating activities. Molecular docking revealed that C2 forms a hydrogen bond with arginine 188 (ARG188) in the PVY coat protein (CP). In vivo experiments confirmed the important role of ARG188 in PVY intercellular movement. By competitively binding to ARG188 and activating the plant immune response, C2 significantly reduced PVY pathogenicity. These findings highlight the potential of vanillin-based α-amino phosphonates as effective anti-PVY agents. Specifically, compound C2 binds to PVY CP ARG188 and impairs PVY mobility, stimulates host immunity, and suppresses viral proliferation, offering a promising foundation for the development of next-generation antiviral agrochemicals.
✓ 已验证
DOI
PubMed
高影响因子
FUEL
·
2025
·
IF 7.5
Liangzheng Lin,Zhitao Han,Junhao Jing,Shoujun Zhang,Shaoqin Sheng,Sihan Yin,Tingjun Liu,Chuanqiu Gao
Manganese-based mullite-type oxides are widely used in VOCs oxidation, and their catalytic performance can be effectively regulated by modifying the A-site elements. Here, a series of Mn-based mullite catalysts (AMn 2 O 5 , A = Sm, Y, Gd) with different rare-earth elements at the A-site were synthesized via hydrothermal method and applied for methanol catalytic oxidation. The GdMn 2 O 5 catalyst demonstrated optimal low-temperature activity, achieving 98 % CH 3 OH conversion at 150 °C. Comprehensive characterization results revealed that the largest specific surface area (40.08 m 2 /g), highest Mn 4+ /Mn 3+ ratio (0.33), maximum O ads /O lat ratio (1.07), highest concentration of oxygen vacancy and enhanced surface oxygen mobility collectively contributed to the superior catalytic performance of GdMn 2 O 5 . In situ DRIFTS was employed to investigate the intermediate species and catalytic mechanism of GdMn 2 O 5 during methanol oxidation. This study provides an important theoretical basis for the rational design of AMn 2 O 5 catalysts and the catalytic oxidation of methanol by fully leveraging the rare earth cation effect, modification, and optimization.
研究领域:
催化化学
·
环境化学
·
材料科学
·
表面科学
·
无机化学
✓ 已验证
产品关联
DOI
高影响因子
Molecular Catalysis
·
2025
·
IF 4.9
Hao Huang,Wei Na,Xiangying Wang,Zhenhui Huang,Zhao Ai,Wengui Gao,Hua Wang
A detailed understanding of the role of Y in Cu/ZnO/ZrO 2 catalysts for methanol synthesis was studied by XRD, HRTEM, TPR, TPD, N 2 O titration and XPS techniques in this work. The addition of Y enhances the interaction between Cu and ZnO. With the increase of Y content, the crystal size of Cu and ZnO decreased and Cu 0 surface area increased, CO 2 /H 2 -TPD exhibited the larger CO 2 and H 2 desorption peak at relative high temperature, XPS confirmed the reduction degree of ZnO to Zn 0 on the catalyst surface also increased, and forming more Cu-ZnO x active sites. However, excess Y content leads to a much stronger interaction between Cu and ZnO, which is not beneficial for migration and stabilization of the formed ZnO x species during the reaction atmosphere, and thus generating less Cu-ZnO x sites for methanol synthesis. This work enlightens the migratable and metastabe of the formed ZnO x species on Cu surface by regulation of promoter and offers a perspective for exploring Cu-ZnO interactions in modified Cu/ZnO/ZrO 2 catalysts.
研究领域:
催化化学
·
能源化学
·
材料化学
·
工业催化
·
碳资源利用
✓ 已验证
产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
·
2025
·
IF 4.6
Siqi Zhao,Yongqi Lv,Ziwei Zhang,Jinglian Fan
Nano powder plays a key role in preparing high performance tungsten-based materials. It is necessary to synthesize powder with uniform element distribution, low impurity content, and fine particles for preparing higher performance tungsten-based materials with more uniform microstructure, with smaller grain size and higher densification. However, it is difficult to synthesize uniform oxide/carbide reinforced tungsten matrix composite powders with specific structure by traditional powder metallurgy method. In this manuscript, nano W-Y-Ti powders with core-shell structure were synthesized by organic chemical method. The average grain size of W-Y-Ti is 33.33 nm, which indicates the powder refinement is 1 order of magnitude compared with other methods. Moreover, due to the difference of Y 3+ and Ti 4+ , the Y phase tends to form core in W particle and the Ti phase tends to form shell around W particle in these powders synthesized by organic chemical method. This powder structure is conducive to in-situ dispersion of the reinforced phase during sintering and significantly improves the interface properties of the reinforced phase /W matrix phase. The W-Y-Ti composite prepared by SPS shows fine grain size (750 nm) and uniform distribution (Y 2 O 3 is distributed within the W grain, while Ti is distributed at the grain boundaries). It means the microstructure of the powder can be inherited to the bulk materials, which can improve the performance of these composites. This manuscript provides ideas and data basis for the synthesis and preparation of high-strength, tough and high-performance W-based composite materials.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
·
2018
·Vol. 18
·期 11
·7566-7572
·
IF 1.354
Wu Weihua,Javaid Kashif,Liang Lingyan,Yu Jingjing,Liang Yu,Song Anran,Yao Meiyi,Lan Linfeng,Cao Hongtao
Aqueous solution induced method is regarded as a promising route to realize high-performance metal oxide thin film transistors at low temperature with an economical and environment friendly process. In this paper, we report the synthesis of multi-component AlO
x
:Y dielectrics
with a small amount of yttrium homogeneously distributed in AlO
x
matrix through an alternate spin-coating process. The AlO
x
:Y films demonstrate superior characteristics, such as improved surface morphology, better capacitance coupling effect, smaller dielectric
dispersion, and similar leakage current density compared to AlO
x
films of nearly twofold thickness. By elevating the pre-baking temperature, the dielectric performance of AlO
x
:Y films has been further optimized, exhibiting a near-atomically smooth surface,
a low current density of 8.2×10−8 A cm−2 at 2 MV/cm, and a dielectric constant of 7.4. And the corresponding thin-film transistor with amorphous InGaZnO channel shows a narrow working voltage range (<2.5 V), a field-effect mobility around 10
cm2 V−1 s−1, and an on/off current ratio exceeding 107 coupled with the gate current lower than 1 nA in the entire operation range.
研究领域:
材料科学
·
电子工程
✓ 已验证
DOI
高影响因子
Frontiers in Bioengineering and Biotechnology
·
2022
·
IF 6.064
Yan Yanhong,Guan Yun,Luo Linjuan,Lu Bingqiang,Chen Feng,Jiang Beizhan
Aim: This study aimed to evaluate the effects of immunoglobulin Y (IgY)-loaded amorphous calcium phosphate (ACP) (IgY@ACP) on dentinal tubule occlusion and antibacterial activity.Methodology: IgY@ACP was synthesized based on a biomimetic mineralization strategy. The structure was examined by transmission electron microscopy and Fourier transform infrared spectroscopy. The IgY release property was assessed in vitro. The cell biocompatibility of IgY@ACP was evaluated by CCK-8. The dentin disks were prepared using healthy human molars, and their dentinal tubules were exposed to EDTA. Subsequently, they were randomly selected and treated with or without IgY@ACP for 7 days. The tubule occlusion morphologies and newly formed layers were observed by scanning electron microscopy (SEM) and x-ray diffraction, respectively. To evaluate the acid resistance and abrasion resistance of IgY@ACP, dentin disks that were treated for 1 day were immersed in acid solution or subjected to a toothbrush. The antibacterial effects against Streptococcus mutans (S. mutans) were evaluated by colony-forming unit (CFU) counting, adhesion property assessment, and crystal violet and live/dead bacterial staining. Finally, the occlusion effect was evaluated in rat incisors in vivo. One-way analysis of variance (ANOVA) was performed for statistical analysis. The level of significance was set at 0.05.Results: IgY@ACP presented an amorphous phase with a nanosize (60–80 nm) and sustained release of protein within 48 h. The CCK-8 results showed that IgY@ACP had good biocompatibility. After treatment with IgY@ACP for 1 day, the majority of dentinal tubules were occluded by a 0.3-μm-thick mineralized layer. Seven days later, all dentinal tubules were occluded by mineralization with a thickness of 1.4 μm and a depth of 16 μm. The newly mineralized layer showed hydroxyapatite-like diffraction peaks. In addition, IgY@ACP had good acid and abrasion resistance. After treatment with IgY@ACP, the CFU counting and adhesion rate of S. mutans were significantly reduced, the crystal violet staining was lighter, and the S. mutans staining revealed more dead cells. Most importantly, IgY@ACP had a certain occluding property in rat incisors in vivo.Conclusion: IgY@ACP can effectively occlude dentinal tubules with acid-resistant stability and has prominent anti-S. mutans effects, rendering it a potentially suitable desensitization material in the clinic.
研究领域:
牙科材料
·
口腔生物学
·
生物材料科学
·
牙科研究
✓ 已验证
DOI
PubMed
高影响因子
MATERIALS & DESIGN
·
2020
·
IF 6.289
Baoping Zhang,Bo Li,Shuting Gao,Yiting Li,Rui Cao,Jingyang Cheng,Ruiping Li,Errui Wang,Yumeng Guo,Kailiang Zhang,Jun Liang,Bin Liu
To improve the bioactivity and antibacterial properties of implant materials. In this study, the biomedical titanium alloy (Ti-6Al-4V) was covered by yttrium doped titanium dioxide (Y-TiO 2 ) coating via a plasma electrolytic oxidation (PEO) method. By changing the concentration of yttrium acetate in the electrolyte, Y-TiO 2 coating with different mass ratios of yttrium were obtained. The structure morphology and chemical composition of the Y-TiO 2 coating were systematically characterized. The results indicated that the porous and micro-nanostructured Y-TiO 2 coatings were constructed by the pores smaller than 4 μm. Definitely yttrium was not only distributed on the surface but also embedded in the coating. Yttrium mainly existed in form of Y 2 O 3 and Y 3+ state in prepared TiO 2 coating. Element release profiles confirmed that yttrium release slowly from Y-TiO 2 for 32 days. Cell culture tests demonstrated that Y-TiO 2 coating exhibited good biocompatibility on osteoblastic precursor cells and fibroblasts cells with increasing doping concentration of yttrium. Bacteriostasis experiments revealed that Y-TiO 2 coating possess excellent antibacterial property against Staphylococcus aureus ( S. aureus ) and Escherichia coli ( E. coli ). Thus, the prepared Y-TiO 2 coating with outstanding biocompatibility and antibacterial capacity provided a preferred strategy for the repair and reconstruction of bone tissues in dentistry and orthopedics.
研究领域:
生物材料
·
表面工程
·
生物医学工程
·
材料科学
·
骨科
·
牙科
✓ 已验证
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2026
·
IF 6.6
Kailin Han,Liangmiao Zhang,Changzheng Pan,Hao Zeng,Yibo Xue,Fang Xia
Theory-experiment closed loop enables rational design of doped NiO electrochromics. • DFT screening identifies Y as the optimal dopant over La and Ce. • Y-doped NiO exhibits 50.6 % optical modulation and fast switching kinetics. • High coloration efficiency of 215.6 cm 2 ·C⁻ 1 is achieved experimentally. • Y-doped smart windows achieve 11.3 °C cooling, proving energy savings. Doping is an effective strategy to tailor NiO for high‑performance eletrochromic applications. In this work, first‑principles calculations reveal negative formation energies for Y (−5.83 eV) and La (−3.72 eV) in NiO, confirming spontaneous and stable doping. Experimentally, Y and La doping dramatically boost the charge storage capacity of crystalline NiO films. Most notably, at 500 nm, the Y‑doped (Y‑4) and La‑doped (La‑4) films achieve outstanding optical modulations of 50.6 % and 32.0 %, respectively. They far exceed the 8.3 % of undoped NiO‑400. The doped films also exhibit much faster switching kinetics: coloration/bleaching time of 4.2/6.1 s for Y‑doped and 8.0/4.3 s for La‑doped, compared to 7.0/6.5 s for undoped NiO. More importantly, they exhibit remarkably high coloration efficiencies of 215.6 and 262.0 cm 2 ·C −1 , respectively. After 1000 cycles, the Y‑doped film retains 88.0 % of its initial charge capacity, and the La‑doped film retains 90.7 %. Model house tests indicate their good thermal insulation performance for building applications. This strategy of integrating computational design with experimental validation provides a powerful and general approach to develop tailored doped‑NiO electrochromic materials and other advanced functional materials. Y(or La)-doped NiO electrochromic materials with high electrochromic properties was designed by first‑principles calculations and synthesis successfully. Download: Download high-res image (97KB) Download: Download full-size image
✓ 已验证
产品关联
DOI
高影响因子
ChemistrySelect
·
2026
·Vol. 11
·期 5
·e05271
·
IF 2
Jiahao Lu,Hongtao Jin,Hepeng Zhang,Zhong Tian,Xiaoqi Sun
In this article, a series of bismuth (Bi)-doped rare-earth molybdate orange pigments with near infrared (NIR) properties were synthesized by high temperature solid phase reaction at 1400°C with the general formula of Y 4−x Bi x MoO 9 . The prepared pigments were characterized by analytical techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM), CIE 1976 color space system, and ultraviolet-visible/near-infrared spectroscopy (UV-Vis/NIR). After doping Bi 2 O 3 into Y 4 MoO 9 , its color changes from yellow to red and finally to orange. All the doped samples belong to the monoclinic crystal system. All pigment samples have an NIR reflectance (R%) of over 97% at 1100 nm. In the study of acid and alkali resistance, the color difference value Δ E * of the pigment before and after soaking in acidic and alkaline solutions is less than 2, indicating its good chemical stability. In the coating simulation investigation, the indoor air temperature difference between the house model coated with synthetic pigments and the house model coated with commercial pigments reaches 8.2°C, indicating that Y 4-x Bi x MoO 9 pigments had good isolation effect and application prospects as a cool pigment.
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）