IET Nanobiotechnology
·
2021
·Vol. 15
·期 9
·687-697
·
IF 1.847
Mingfu Ye,Linhu Wang,Zhang Wu,Wenjun Liu
The authors' previous study showed that zirconium oxide nanoparticles (ZrO 2 NPs) induce toxic effects in MC3T3-E1 cells; however, its toxicological mechanism is still unclear. Liquid chromatography–mass spectrometry/time-of-flight mass spectrometry was used to reveal the metabolite profile and toxicological mechanism of MC3T3-E1 cells in response to ZrO 2 NPs. The results demonstrated that MC3T3-E1 cells treated with ZrO 2 NPs for 24 and 48 h presented different metabolic characteristics. Following ZrO 2 NP treatment for 24 h, 96 upregulated and 129 downregulated metabolites in the positive ion mode, as well as 91 upregulated and 326 downregulated metabolites in the negative ion mode were identified. Following ZrO 2 NP treatment for 48 h, 33 upregulated and 174 downregulated metabolites were identified in the positive ion mode, whereas 37 upregulated and 302 downregulated metabolites were confirmed in the negative ion mode. Among them, 42 differential metabolites were recognised as potential metabolites contributing to the induced toxic effects of ZrO 2 NPs in MC3T3-E1 cells. Most of the differential metabolites were lysophosphatidylcholine and lysophosphatidylethanolamide, indicating that exposure to ZrO 2 NPs may have a profound impact on human cellular function by impairing the membrane system. The results also provide new clues for the toxicological mechanism of ZrO 2 NP dental materials.
研究领域:
纳米技术
·
毒理学
·
细胞生物学
·
代谢组学
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DOI
PubMed
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2026
·Vol. 109
·期 3
·e70605
·
IF 4.2
Menghan Shi,Daming Sun,Zhun Su,Michal Bockowski,Lars R. Jensen,Peter K. Kristensen,Igor Seibel-Geraschenko,Christian G. Hoover,Lothar Wondraczek,Xuan Ge,Qiaodan Hu,Morten M. Smedskjaer
Compared with homogeneous glasses, glass-ceramics with heterogeneous microstructures enable multiscale architecture control to optimize their performance. In this work, we attempt to regulate the mechanical properties of ZrO 2 –SiO 2 glass-ceramics through hot compression-induced densification. The refractory glass-ceramic is first synthesized through aerodynamic levitation (containerless) melting, with the inherent immiscibility between zirconia and silica yielding a heterogeneous microstructure upon quenching, comprising a continuous silica-rich glass matrix embedded with discrete ZrO 2 crystalline phases. Upon subsequent hot compression, the overall microstructure is largely retained, but hardness displays a non-monotonic dependence on pressure, that is, decreasing at an intermediate pressure (1 GPa) and increasing at a higher pressure (2 GPa). This behavior contrasts with the monotonic hardness increase typically observed in pressure-treated oxide glasses. We attribute this distinct hardness–densification relationship to pressure-dependent interfacial binding between the glass and crystalline phases. This involves a volume contraction of the ZrO 2 phase due to the monoclinic-to-tetragonal phase transition and densification of the glass matrix phase, collectively determining the interfacial binding strength and thus hardness. Overall, this work demonstrates an alternative approach for tailoring the mechanical properties of glass-ceramics beyond conventional approaches that focus on modifying crystal phase morphology, size, or composition.
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DOI
高影响因子
Frontiers in Chemistry
·
2017
·
IF 3.994
Zhiping Zhang,Weikang Sun,Hongfei Liu,Guanhua Xie,Xiaobing Chen,Xianghua Zeng
Zr2WP2O12/ZrO2 composites were fabricated by solid state reaction with the goal of tailoring the thermal expansion coefficient. XRD, SEM and TMA were used to investigate the composition, microstructure, and thermal expansion behavior of Zr2WP2O12/ZrO2 composites with different mass ratio. Relative densities of all the resulting Zr2WP2O12/ZrO2 samples were also tested by Archimedes' methods. The obtained Zr2WP2O12/ZrO2 composites were comprised of orthorhombic Zr2WP2O12 and monoclinic ZrO2. As the increase of the Zr2WP2O12, the relative densities of Zr2WP2O12/ZrO2 ceramic composites increased gradually. The coefficient of thermal expansion of the Zr2WP2O12/ZrO2 composites can be tailored from 4.1 × 10−6 K−1 to −3.3 × 10−6 K−1 by changing the content of Zr2WP2O12. The 2:1 Zr2WP2O12/ZrO2 specimen shows close to zero thermal expansion from 25 to 700°C with an average linear thermal expansion coefficient of −0.09 × 10−6 K−1. These adjustable and near zero expansion ceramic composites will have great potential application in many fields.
研究领域:
材料科学
·
陶瓷
·
热学性能
·
复合材料
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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
MATERIALS RESEARCH BULLETIN
·
2019
·
IF 3.355
Wenzhuo Deng,Ying Li
The cubic solid solution with dispersed tetragonal precipitates formed in all the investigated Zr 1-x Mg x O 2-x (0.06≤x≤0.2) samples. Upon heating, the Arrhenius curves are broken into three parts, the degradation of cubic solid solution gives rise to a decline in ionic conductivity for MgO partially stabilized ZrO 2 (Mg-PSZ) samples at 1000–1200 °C, whereas a sharp rise at 1400°C suggests the phase transition from a tetragonal to a cubic phase. On cooling, the phase conversion is reflected by a bend in the Arrhenius curve at 1400°C or lower temperatures due to the slow decomposition of the cubic phase. The high activation energies in a low-temperature region are mainly due to the formation of defect complexes, and the partial dissociation of which leads to the low activation energies in a high-temperature region. Additionally, no apparent breaks in the Arrhenius curves for 8mol%Y 2 O 3 -ZrO 2 (8YSZ) are observed at 1000–1600 °C and the ionic conductivities increase monotonically with increasing temperature.
研究领域:
材料科学
·
固体物理
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产品关联
DOI
高影响因子
JOURNAL OF NANOPARTICLE RESEARCH
·
2014
·Vol. 16
·期 2
·1-10
·
IF 2.278
Du Weimin,Zhang Youjuan,Wang Yanbin,Liu Junning,Lu Haiyang,Hou Suhan,Zhang Xiaohua
Abstract Zirconia modified by gadolinium (Gd/ZrO 2 ) nanocomposite has been successfully prepared by NaCl-assisted method. The effects of gadolinium introduction on phase, composition, optical properties, and photocatalytic activities were investigated in detail. Results reveal that the introduction of gadolinium could enlarge the lattice space, create structural defects, and restrict the product growth. At the same time, the generated structural defects further influence the optical properties of Gd/ZrO 2 nanocomposite with single phase. Photocatalytic experiments indicate that Gd 0.2 Zr 0.8 O 2− δ
nanocrystals have better visible-light-responsive photocatalytic activities which results from the special structural defect, smaller size (30–55 nm), and larger specific surface area (~50.60 m 2 /g). Hence, Gd 0.2 Zr 0.8 O 2− δ
nanocrystals are promising visible-light-responsive photocatalysts with potential prospects in wastewater treatment and environmental protection. Also, the present NaCl-assisted method might be generalized to synthesize other nanocomposite with more complicated structures. Graphical Abstract
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
·
2019
·
IF 4.081
Keqiang Zhang,Rujie He,Guojiao Ding,Chengwei Feng,Weidong Song,Daining Fang
3Y-TZP strengthened ZrO 2 ceramics were fabricated by using digital light processing (DLP) based additive manufacturing . The effects of 3Y-TZP concentration on the relative density, linear shrinkage, microstructure, and mechanical properties of the DLP-prepared ZrO 2 ceramic were investigated in detailed. High precision ZrO 2 ceramic parts with lattice structure with parts were successfully prepared by using DLP. The highest relative density and flexural strength were 96.40% and 306.53 ± 6.03 MPa, respectively, when the 3Y-TZP concentration was 7.5 vol%. The strengthening mechanism was discussed in detailed.
研究领域:
材料科学
·
机械工程
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产品关联
DOI
高影响因子
RSC Advances
·
2021
·Vol. 11
·期 30
·18326-18332
·
IF 3.361
Ying Lu,Zhihang Zhao,Xianpeng Fan,Xinyu Cao,Mingtan Hai,Zhou Yang,Kun Zheng,Jiaxin Lu,Jingnan Zhang,Yongmei Ma,Rongben Zhang,Shibi Fang
To obtain a rapid processible LED encapsulant that leads to high and stable light extraction efficiency (LEE), UV curable ZrO2/phenyl-siloxane nano-composite (ZSC) double-layer encapsulants were prepared and optimized. The highly crystalline ZrO2 nanoparticles with a diameter of ∼14 nm were synthesized through a modified hydrothermal method at mild conditions, and a UV curable methacryl-diphenyl-polysiloxane (MDPS) with a refractive index (RI) of 1.54 (at 633 nm) was synthesized from self-condensation of diphenylsilanediol and an end-capping reaction. High refractive indexes (RIs) from 1.54–1.61 have been obtained for ZSC composites by adding 0–20 wt% ZrO2. Before and after sulfur vapor erosion, the double-layer encapsulated sample (M-10/M) showed 11.2% and 64.8% higher LEE respectively than that of Dow Corning OE-7662. Meanwhile, the variation of LED light color temperature (Tc) was less than 1%. The effect of the ZrO2 nanoparticle content on LEE of double-layer and single-layer encapsulation were compared and discussed based on Fresnel loss and Rayleigh scattering theories. The double-layered UV curing processing took only 1/6 of the time needed for common thermal curing.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2019
·Vol. 43
·期 15
·5839-5848
·
IF 3.069
Hongling Qin,Xuefei Li,Xiaolong Zhang,Zhiguang Guo
In order to reduce the possibility of cotton fabrics causing fire and improve the waterproofness of the fabric, a superhydrophobic flame retardant (SFR) coating was fabricated on cotton fabric using a simple two-step process. Firstly, the fabric was pretreated with diammonium phosphate solution, and then H-ZrO2 (ZrO2 which is modified by hexadecyltrimethoxysilane) was adhered to the surface of the fabric using polydimethylsiloxane. The morphology, chemical composition and element distribution of the coating were detected and characterized using SEM, ATR-FTIR, XPS and EDS. In addition, the flame-retardant properties of the coated fabric samples were tested using thermal stability and vertical burning tests. Superhydrophobic fabric was tested and evaluated by subjecting the coated fabric to abrasion, washing, acid–base soaking and ultraviolet irradiation tests, and the contact angles of the sample before and after the test were investigated. The results showed that the coated fabric has a strong hydrophobic ability. When the H-ZrO2 content in the solution is 0.8 g, the coated fabric has a maximum contact angle of 154°. Moreover, the coating has good wear resistance, acid and alkali resistance and UV resistance. Importantly, the modified fabric shows excellent flame-retardant performance.
研究领域:
材料科学
·
纺织工程
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DOI
高影响因子
CERAMICS INTERNATIONAL
·
2016
·
IF 2.758
Wei-Ming Guo,Zhi-Lin Zhang,Jing-Xi Li,Yang You,Shang-hua Wu,Hua-Tay Lin
Al 2 O 3 –B 4 C ceramics had poor densification, due to the formation of Al 18 B 4 O 33 phase by reaction between Al 2 O 3 and B 2 O 3 on the surface of B 4 C. In the present work, Y 2 O 3 or Ti additive together with ZrO 2 from milling media were introduced into Al 2 O 3 –B 4 C ceramics. Results showed that Y 2 O 3 reacted with B 2 O 3 to produce YBO 3 phase, and removed Al 18 B 4 O 33 phase, resulting in the improved densification and the coarse microstructure. However, Ti and ZrO 2 reacted with B 2 O 3 to produce hard TiB 2 and ZrB 2 phases, removed the most of Al 18 B 4 O 33 phase, refined microstructure by pinning effect of hard particles, and improved densification and mechanical properties .
研究领域:
材料科学
·
陶瓷工程
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2025
·
IF 6.9
Jiandong Zuo,Zhao Liu,Chaoyun Luo,Guangliang Gary Liu
Colorless polyimides (CPIs) have emerged as crucial substrate materials for OLED displays. Polythioetherimide (PTEI) materials with sulfur atoms, demonstrate superior optical property, thermal stability and solubility compared with conventional polyimides. In this work, two types of soluble PTEI films were synthesized via a thiol-ene click reaction. By adjusting the molar ratio of titanium or zirconium n-butoxide to PTEIs, two series of PTEI-based nanohybrid films (PTEIs-Ti-X% and PTEIs-Zr-X%) were fabricated with 4–12 wt% of TiO 2 or ZrO 2 . SEM and XRD analyses confirmed homogeneous dispersion of the inorganic components. The hybrid films exhibited high thermal stability, with 5 % weight loss temperatures (Td 5 ) reaching 342 °C and 331 °C, and glass transition temperatures (T g ) ranged between 189–225 °C and 184–229 °C for the Ti- and Zr-containing hybrids, respectively. They both displayed low thermal expansion coefficients (CTE), indicating outstanding dimensional stability. Optically, the refractive index at 633 nm could be tuned from 1.6920 to 1.7341 for Ti hybrids and from 1.6867 to 1.7247 for Zr hybrids. Transparency measurements at 450 nm remained above 75 % for Ti-based films and reached up to 89 % for Zr-based films. Overall, PTEI hybrid films exhibit a well-balanced combination of properties for high-performance optical and display applications
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高影响因子
GREEN CHEMISTRY
·
2026
·
IF 10.6
Jinhao Qian,Haoan Fan,Shiyu Wang,Wenhua Zhou,Yilei Ren,Chao Chen,Zhenyu Zhang,Jie Fu
Non-noble metal-based catalysts are promising candidates for efficient glucose hydrogenation. However, their practical application remains challenging due to limited intrinsic activity and poor stability. Herein, we demonstrate that the inverse catalyst featuring zirconium oxide nano-islands immobilized on a metallic Co matrix exhibits superior activity compared to the conventional supported catalyst. The optimal ZrO 2 /Co catalyst achieves an outstanding sorbitol productivity of 37.6 g Sor g Cat -1 h -1 and displays excellent reusability over 11 consecutive runs. Kinetic studies and comprehensive characterizations uncover that the inverse Zr-Co interface enriches oxygen vacancies and synergistically modulates the adsorption of glucose and hydrogen, thereby prompting the selective hydrogenation of carbonyl groups. This work offers a rational design strategy for developing high-performance and durable inverse catalysts for biomass hydrogenation.
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高影响因子
危险品化学品经营许可证（带存储）