MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
·
2025
·
IF 4.6
Jialong Ma,Yishuai Jing,Yuting Li,Shanbo Cui,Xin Zhao,Jiaming Song
The demand for water pollution control accelerated the development of environment-friendly technologies, e.g., photocatalysis, for resolving the pollution issue efficiently. Wide bandgap rare earth oxide semiconductors are potential photocatalysts with low toxicity for the environment, but the luminescence of rare earth ions and narrow light absorption band restrict their photocatalytic degradation efficiency. In this study, we synthesized a composite structure consisting of Eu 2 O 3 nanoparticles (NPs) and carbon-nanospheres (CNSs) by annealing both monomers in argon atmosphere together. The photocatalytic degradation performance of the composites with different mass ratios were investigated by utilizing rhodamine B (RhB) dye as the target organic pollutant. The results show that the combination with CNSs significantly improved the photocatalytic performance of Eu 2 O 3 , and the composite's highest removal efficiency reached up to 55 % within 60 min, which is competitive to those for other rare earth oxides. The improved photocatalytic degradation capacity for the composite structure was attributed to the luminescence suppression of Eu 3+ and the increased visible-light absorption by CNSs. Our research sheds light on the possible routes for enhancing the photocatalytic degradation capability of rare earth oxides in the environment pollution abatement.
研究领域:
环境科学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
Desalination and Water Treatment
·
2024
·
IF 1
Mingyue Piao,Xinyue Liu,Hongxue Du,Lingzi Zhao,Honghui Teng
Thiamethoxam is a highly effective pesticide that is utilized all over the world. It must be removed from water since it is hazardous to aquatic life and bio-accumulative. Photocatalysis is a popular method to remove pollutants. Here, the solvothermal approach was used to create the photocatalytic composite based on Eu 2 O 3 and BiOBr. SEM, XRD, and photoluminescence spectroscopy were used to characterize the composite's structure and determine its characteristics. The effects of Eu 2 O 3 loading, solution pH, and dosage of catalysts on the degradation efficiency were tested. The best removal results were occurred when 1.0 g/L of Eu 2 O 3 /BiOBr with 1 mol% of Eu 2 O 3 loading on BiOBr was added. Approximately 81.9% of thiamethoxam was degraded within 120 min under UV irradiation. A wide pH range was suitable for the catalytic process. Additionally, Eu 2 O 3 /BiOBr can be recycled six times without obviously losing catalytic activity. Scavenging experiments demonstrated that the primary active species in the photocatalytic degradation of thiamethoxam was hydroxyl radicals, and a potential photocatalytic process was hypothesized in light of the scavenging experiment findings. The materials created for this investigation showed potential uses for pesticides' quick removal.
研究领域:
环境科学
·
材料科学
·
农药去除技术
✓ 已验证
产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Jiayun Liu,Zhilin Li,Min Wang,Chongyue Jin,Jin Kang,Yiwu Tang,Siyan Li
In this study, Eu 2 O 3 /Co 3 O 4 nanosheets (NSs) were successfully synthesized and employed to degrade levofloxacin (LVX) via peroxymonosulfate (PMS) activation. Owing to the enhanced transfer efficiency of Co 2+ /Co 3+ and more adsorbed oxygen, the obtained Eu 2 O 3 /Co 3 O 4 NSs displayed better catalytic performance for PMS activation toward LVX degradation than pure Co 3 O 4 . The Eu 2 O 3 /Co 3 O 4 NSs can remove 97.93% of LVX only in 6 min via activating PMS, with a reaction rate constant (0.2346 min −1 ) , which was 2.3 folds of single Co 3 O 4 NSs (0.1003 min −1 ). Besides, Eu 2 O 3 /Co 3 O 4 exhibited good catalytic performance in presence of different inorganic anions, satisfactory stability and reusability. Singlet oxygen ( 1 O 2 ), hydroxyl radical (•OH), sulfate radical (SO 4 •− ) and superoxide radical (•O 2 − ) contributed to LVX degradation and 1 O 2 played the most key role. In addition, based on the ROSs and LVX degradation intermediates, the possible mechanism and degradation pathways of LVX were further cleared in detail. This work can provide a reference for the eco-friendly and facile preparation strategy of efficient and stable catalysts for rapid and efficient removal of recalcitrant pollutants.
研究领域:
环境科学
·
催化材料
·
污染治理
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2024
·
IF 8
Chunyuan Tian,Feiyan Tang,Mingxia Wang,Jie Zhou,Xidian Yue,Feng Luan,Xuming Zhuang
In this work, an eco-friendly and rapid dual-mode detection method for H 2 S based on europium oxide doped with carbon quantum dots nanocomposites (Eu 2 O 3 @CDs NPs) is proposed. An efficient electrochemiluminescence (ECL) sensor and dual emission ratio type fluorescence (FL) sensor was constructed by Eu 2 O 3 @CDs NPs, which exhibit excellent ECL and FL properties. It successfully realized the precise quantitative detection of H 2 S due to the influence of the sulfion (S 2- ) to resonance energy transfer mechanism in Eu 2 O 3 @CDs NPs and the extremely short response time greatly improves the analysis efficiency. Ultimately, a good linear relationship in the concentration range of 1 pM to 10 mM and 50 nM to 0.5 mM of H 2 S was acquired, respectively, and the detection limit was as low as 0.0537 pM and 4.88 nM (S/N = 3). In addition, both sensors show excellent selectivity, and stability, and provide a novel idea for establishing H 2 S sensors.
研究领域:
环境科学
·
分析化学
·
生物传感
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2024
·
IF 5.1
Zhipeng Huo,Yidong Lu,Zuoyang Chen,Jie Zhang,Hong Zhang,Guoqiang Zhong
In this research, a series of Eu 2 O 3 /B 4 C/HDPE composites containing micromorphology tunable Eu 2 O 3 submicron spheres as fillers are prepared for shielding neutron and gamma ray. The influence of microstructure of Eu 2 O 3 fillers on thermal stability, mechanical, and radiation shielding properties of composites are studied in detail. The growth process of Eu 2 O 3 precursor (Eu(OH)CO 3 ) follows the LaMer and Ostwald ripening mechanism. The FESEM reveal that the microstructure of synthesized Eu 2 O 3 is submicron sphere and the particle size decreases with addition of urea content in the reactant solution. HRTEM and SEAD images reveal that the overall crystal morphology of the Eu 2 O 3 fillers is polycrystalline. BET analyses reveal that the hysteresis loops of nitrogen adsorption-desorption isotherms changes from Type H1 to H3 after Eu 2 O 3 fillers are ball-milled, which is attributed to the suppression of nanoparticle agglomeration by ball milling. The FESEM images and EDS mapping of the fracture surfaces of the composites reveal that Eu 2 O 3 fillers are evenly distributed in the HDPE matrix. It is revealed that under the condition that the agglomeration of the nanoparticles is effectively suppressed, the higher BET-specific surface area and smaller size of Eu 2 O 3 fillers are conducive to the various properties of the composites. The superior composite containing Eu 2 O 3 (R = 1:30)/B 4 C/HDPE has a 99.1 % neutron shielding rate with 15 cm thickness under a 252 Cf neutron source and a 73.1 % gamma shielding rate with 15 cm thickness under a 137 Cs gamma source.
研究领域:
材料科学
·
辐射防护
·
核工程
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Ying Li,Lijun Chen,Ruotong Li,Xinyi Zhao,Mei Shi,Guoqi Zhang,Fuyou Li
Inorganic lanthanide nanomaterials as photoluminescent biolabels have attracted increasing attention due to their superior physicochemical properties. However, unstable conjugation of inorganic lanthanide nanomaterials with biological function units (such as antibodies) induces instability of conjugated complexes in aqueous solution, limiting their clinical application. In this study, we developed a rapid point-of-care testing (POCT) platform strategy based on coordination-enhanced time-resolved luminescence of specially nanostructural lanthanide particles for lateral flow immunoassay (CE-TRFIA). This strategy integrates a nanoprobe via a dendritic mesoporous silica nanosphere (DMSN) loading a large amount of ultrasmall amorphous europium oxide (Eu2O3) nanoparticles, which rapidly dissolve to release Eu3+ cations under neutral pH value and form luminescent complexes with photosensitizers (such as β-NTA and TOPO) in an LFIA system. This innovative strategy achieves high-sensitivity detection and long-term stability primarily through high-loading probes, excellent dissolution enhancement, stable covalent coupling, and time-resolved detection. With Procalcitonin (PCT) antigen selected as the detection sample, this approach achieves high-sensitivity detection of PCT with a limit of detection (LoD) as low as 1.9 pg/mL, significantly lower than that of commercial LFIA (0.1 ng/mL), and excellent clinical correlation (r = 0.989). The method offers chemiluminescence-level sensitivity without the need for large instruments while retaining the real-time detection characteristics of LFIA. Our results highlight CE-TRFIA as a highly sensitive, specific, and rapid POCT solution for detecting low-abundance biomarkers such as PCT, enhancing the diagnostic capabilities of traditional LFIA and offering significant potential for ultrasensitive and rapid clinical diagnostics.
研究领域:
生物医学工程
·
临床诊断学
·
纳米材料科学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2022
·
IF 7.336
Shao-Lun Cui,Dan Feng,Zhen-Xue Xiao,Sheng Liu,Xue-Ping Gao,Guo-Ran Li
Ni-rich layered cathode materials are being paid much attention to because their high capacity can handily improve energy density of lithium-ion batteries. However, Ni-rich cathode materials still suffer from the deficiencies such as poor cycle stability, weak structural and thermal stability. In this work, Eu 2 O 3 -doped Li 4 SiO 4 with an enhanced ionic conductivity is proposed as surface coating layer for LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM) cathode material to improve the capacity retention and structural stability during cycling. The doping of Eu 2 O 3 in Li 4 SiO 4 makes the coating layer have higher ion conductivity and better stability than pure Li 4 SiO 4 layer. When the doping amount is 10 mol% of Li 4 SiO 4 , the corresponding cathode material NCM-LS3-0.10Eu 2 O 3 exhibits the optimal cycle and rate performance. The discharge specific capacity and capacity retention after 400 cycles at 1 C rate are 150.1 mAh g −1 and 80.48%, respectively. In particular, the NCM-LS3-0.10Eu 2 O 3 secondary particles avoid the appearance of serious cracks and maintain excellent structural stability even after long cycling. It is proved finally that the Eu 2 O 3 -doped Li 4 SiO 4 coating layer can not only inhibit the side reactions caused by the contact between electrode surface and electrolyte, but also reduce the resistance of lithium ion migration and suppress the microstructure changes caused by local stress.
研究领域:
材料科学
·
电化学
·
能源存储
✓ 已验证
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Gang Qu,Jingkai Zhou,Dandan Huang
The phase relationships of the ternary system Eu 2 O 3 - La 2 O 3 - ZrO 2 and binary Eu 2 O 3 - La 2 O 3 subsystem were experimentally and thermodynamically studied. Six three-phase fields and nine two-phase ones in the Eu 2 O 3 - La 2 O 3 - ZrO 2 system were investigated by X-ray diffraction, scanning electron microscopy and electron probe microanalysis with wavelength dispersive spectrometer at 1873 K and 1673 K. Nevertheless, there only existed a two-phase region in the Eu 2 O 3 - La 2 O 3 system in the temperature range from 1873 K to 1673 K. After that, the ternary mixing parameters for the system Eu 2 O 3 - La 2 O 3 - ZrO 2 including the binary interaction parameters in the Eu 2 O 3 - La 2 O 3 subsystem are optimized with the CALPHAD (CALculation of PHAse Diagrams) method, based on obtained experimental results. The high-temperature phase relationships and the special type of continuous solid solutions (La 2-x Eu x Zr 2 O 7 ) investigated in present work will contribute to exploring new materials with specific properties such as optical transparency.
研究领域:
材料科学
·
热力学
✓ 已验证
产品关联
DOI
高影响因子
CRYSTENGCOMM
·
2022
·Vol. 24
·期 43
·7669-7676
·
IF 3.756
Shengdi Ta,Huiting Zhang,Wenxia Wu,Yazhao Wang,Peng Zhang,Zeyu Cheng,Shoulei Xu,Bernard Albert Goodman,Wen Deng
The synthesis, structure, and optical properties are reported for a series of yttria-stabilized zirconia crystals in which some Y3+ was replaced by Eu3+. These crystals were grown by the optical floating zone (OFZ) method and were transparent without inclusions, cracks, or bubbles. They were all exclusively in the cubic phase, whereas the corresponding ceramic samples had a mixture of monoclinic and cubic phases. Absorption spectra showed a charge transfer band at 268 nm and a series of narrow peaks in the range 308–540 nm from Eu3+ f–f transitions. The crystals were efficiently excited at 393 nm, and exhibited excellent orange-red photoluminescence (PL) centred at 610 nm, from the 5D0 → 7F1 transition. The maximum PL intensity was observed with crystals prepared with 2.00 mol% Eu2O3, and compared with other rare earth ions; Eu3+-doped ZrO2–Y2O3 single crystals have a high concentration quenching threshold. The critical distance for Eu3+ ions was calculated as 11.8 Å, which indicates that multipole–multipole interactions dominate the non-radiative energy transfer between Eu3+ ions. Finally, the chromaticity coordinates (CIE) for all the samples were similar, and those for the (ZrO2)92(Y2O3)6(Eu2O3)2 crystal were (x = 0.6339, y = 0.3657) with a colour purity >98%.
研究领域:
材料科学
·
光学
·
晶体生长
·
发光材料
·
固体物理
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2025
·
IF 9.7
Shuang Cao,Zhuoyi Zhang,Yunshuo Wu,Yuxin Sun,Zhe Li,Yanxia Gao,Haiqiang Wang,Xuanhao Wu,Zhongbiao Wu
Nitrous oxide (N 2 O) is a potent greenhouse gas with high global warming potential. It is urgent to develop active and stabile catalysts for N 2 O direct catalytic decomposition (deN 2 O) in industrial exhaust gas. In this study, a series of Eu-doped NiO catalysts were synthesized by co-precipitation method. The catalyst with an Eu to Ni molar ratio of 0.04 showed the highest deN 2 O ability, reaching 100 % conversion at 400 °C without generating NO x by-products. The catalyst also displayed resilience against O 2 and NO impurity gases, maintaining structural stability and achieving complete transformation of N 2 O at 440 °C. Eu was uniformly dispersed in NiO in the form of Eu 2 O 3 , which not only regulated the particle size and specific surface area of NiO, but also changed the surface chemistry of NiO by inducing more Ni 2+ active sites and more mobile O β species. Eu-doping altered the decomposition mechanism of N 2 O from L-H to E-R mechanism, reducing the energy barrier of O 2 desorption, which was the rate-determining step. During the reaction, Eu 0.04 Ni showed an activation behavior after cyclic use and long-term reaction and reduced T 100 to 320 °C after 14-hr experiment. These findings demonstrate the potential of the catalyst for practical application and provide new routes for the direct decomposition of N 2 O in industrial exhaust gas.
研究领域:
环境科学
·
催化化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·Vol. 51
·期 30
·63031-63040
·
IF 5.6
Wenjie Ge,Haoye Gu,Ye Jin,Haishen Ren,Shaohu Jiang,Zhongyuan Gu,Huixing Lin
In this work, the dual effects of Eu 2 O 3 on crystallization behavior, phase separation and fluorescence properties in simulated-lunar-soils-based SiO 2 -MgO-CaO-Al 2 O 3 -K 2 O-TiO 2 -Na 2 O glass-ceramics (SMCA-Eu) were investigated and analyzed. It was demonstrated that as Eu 2 O 3 concentration increased, the crystallization activation energy of SMCA-Eu glass declined from 343.42 kJ/mol to 310.01 kJ/mol, subsequently rebounded to 318.43 kJ/mol. The Avrami parameter (n) exhibited distinctive surface crystallization of SMCA-Eu glass-ceramics system with crystalline phases of CaMgSi 2 O 6 , (Na,Ca)(Al,Si) 4 O 8 and Mg 2 Al 4 Si 5 O 18 . According to SEM and TEM results, the (Na,Ca)(Al,Si) 4 O 8 of SMCA-Eu glass-ceramics without Eu 2 O 3 transformed into CaAl 2 Si 2 O 8 and Mg 2 Al 4 Si 5 O 18 with increasing of Eu 2 O 3 content due to significant phase separation between Ca-rich and Si-rich regions. The optimal incorporation concentration was identified as 1 mol% Eu 2 O 3 , which yielded a fluorescence lifetime of 1.909 ms. Fluorescence intensity increased by a factor of 2.11 at 613 nm after crystallization, while significant phase separation in high-concentration Eu 3+ glass-ceramics enhanced fluorescence intensity despite limited crystallization. These findings indicated that SMCA-Eu glass-ceramics exhibit excellent red-blue light emission characteristics, making them promising candidates for plant growth lighting applications in lunar base environments.
研究领域:
材料科学
·
陶瓷学
·
发光材料
·
太空资源利用
·
玻璃陶瓷
·
固态化学
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2025
·
IF 6
Feifan Cheng,Shihan Huang,Chunlian Zhai,Qian Li,Wei LV,Xueqin Zhao,Biao Huang
Background Time-resolved fluorescence immunoassays (TRFIA) have been extensively applied across various fields owing to their low background noise characteristics, particularly in disease diagnosis and prevention. Survival and prognosis of patients with acute myocardial infarction (AMI) are highly dependent on the rapid and accurate detection of myocardial damage. Troponin T (cTnT) is a primary diagnostic biomarker of AMI and is widely used in clinical practice. However, the current bioassays for cTnT detection are complex and time-consuming. Therefore, there is an urgent need for a sensitivity, and rapid diagnostic approach for acute myocardial infarction. Results Herein, we report a novel, sensitive, and specific cTnT detection approach using a unique nanoprobe dissolution-enhanced fluorescence amplification strategy. Eu2O3 nanocrystals, easily dissolvable in an acidic enhancer solution and transformed into many highly luminescent Eu3+ micelles, were utilized as nanoprobes. The released Eu3+ further activates the time-resolved fluorescence system, which prevents autofluorescence interference and blood scattering, allowing for the accurate determination of cTnT levels in clinical serum samples. The demonstrated sensitivity of serum cTnT was high with a sensitivity of 3.86 ng·L−1. In addition, we developed a Eu2O3-based lateral flow immunochromatographic test strip for facile cTnT detection, with the sensitivity of 14.14 ng·L−1 and 6.31 ng·L−1 using smartphone-integrated app and commercial analyzer respectively. Significance This Eu 2 O 3 -nanocrystal-based dissolution-enhanced luminescent bioassay has tremendous potential for ultrasensitive biomarker detection, enabling ultra-trace detection through lanthanide-specific dissolution. Moreover, the surface-functionalized nanocrystals could selectively recognize a variety of analytes, and have excellent photostability with minimal matrix interference, expanding the direction of lanthanide nanoprobes in multifunctional diagnostic and therapeutic areas.
✓ 已验证
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）