Coatings
·
2025
·Vol. 15
·期 5
·505
·
IF 2.8
Qiuli Zhang,Yaning Yu,Jingjing Li,Chengxian Yin,Feng Tian,Jiahui Liu,Jun Zhou
To address the issue of metal corrosion in marine environments, we developed a nanofiller with corrosion resistance and UV absorption capabilities. This nanofiller is prepared using a coprecipitation hydrothermal method and consists of TTA intercalated into an LDH structure with an outer layer containing CeO2, forming a layered double hydroxide (LDH) sandwich structure nanocontainer. TTA can be successfully released in corrosive environments, and the filler exhibits excellent corrosion inhibition and interlayer ion exchange properties. Polarization curve analysis shows that the corrosion inhibition efficiency of MgAl-TTA LDH@CeO2reaches 89.87%. After immersion in a corrosion solution for 60 days, the EP/MgAl-TTA LDH@CeO2coating maintains a high impedance of 3.88 × 108Ω·cm2in the low-frequency region, which is 166 times that of the pure EP coating. Even after 240 h of UV aging, the impedance of the EP/MgAl-TTA LDH@CeO2coating remains high at 3.10 × 108Ω·cm2(20,000 times higher than the pure EP coating). This significantly enhances the coating’s anti-aging and corrosion resistance, providing a feasible method for creating new long-lasting corrosion-resistant coatings in challenging environments.
研究领域:
材料科学
·
腐蚀与防护
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
·
2023
·Vol. 649
·期 20
·e202300091
·
IF 1.4
Zhongzhi Wang,Rui Shi,Pengcheng Hao,Xin Qiao,Senchuan Song
In this work, a Eu(TTA) 3 BIP complex with a novel structure was synthesized and characterized. The Eu(TTA) 3 BIP complex has a wide excitation band and can be excited by light in the ultraviolet and blue regions. The characteristic red light of Eu(III) is emitted when the complex is excited. The use of the 2-(Pyrimidin-2-yl)-1H-benzo[d]imidazole (BIP) ligand improved the UV resistance of the complex. Moreover, the blue light reducing film prepared by the Eu(TTA) 3 BIP complex can effectively weaken blue light irradiation. In addition, the Eu(TTA) 3 BIP complex exhibits fluorescence thermal quenching properties. This provides the possibility for temperature sensing.
研究领域:
材料科学
·
光学
·
生物医学工程
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产品关联
DOI
高影响因子
OPTICAL MATERIALS
·
2018
·
IF 2.32
Xiaolin Zhang,Jianguo Tang,Haidong Li,Yao Wang,Xinzhi Wang,Yanxin Wang,Linjun Huang,Laurence A. Belfiore
This work demonstrated red light emitting nano-PVP fibers that incorporated with novel three-layer nanostructure of Ag@SiO 2 @Eu(tta) 3 phen nanoparticles (Ag@SiO 2 @Eu(tta) 3 phen-NPs), and the hybrid nano-PVP fibers were fabricated via a remarkably simple electrostatic spinning method. For Ag@SiO 2 @Eu(tta) 3 phen-NPs, the thickness of SiO 2 is optimized to obtain the maximum luminescent intensity , as results, the optimized thickness of SiO 2 is 20 nm. And the corresponding luminescent intensity (612 nm) of the Ag@SiO 2 @Eu(tta) 3 phen-NPs is enhanced up to 10 times compared with the pure Eu(tta) 3 phen complex, which indicates that with 20 nm SiO 2 thickness, the localized surface plasmon resonance (LSPR) effect of Ag@SiO 2 exhibits highest performance for enhancing luminescence. Moreover, the luminescent PVP fibers emit bright red light under the fluorescence microscope, which definitely confirms that the microenvironment provided by PVP polymer is absolutely suitable for the fluorescent composites.
研究领域:
材料科学
·
纳米技术
·
光学
·
聚合物科学
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产品关联
DOI
高影响因子
INTEGRATED FERROELECTRICS
·
2021
·
IF 0.836
Peisong Tang,Xuezhi Wei,Liqin Zhang,Ruipeng Hou,Yifan Zhou
Using Eu2O3 as source of tritium, anhydrous ethanol as solvent system, three β-diketone compounds of 2-thienyl trifluoroacetone (TTA), acetylacetone (Hacac), 1-(4-Methoxyphenyl)- 3-(4-tert-butylphenyl)-1,3-propanedione (Avobenzone) as first ligand and 1,10-phenanthroline (Phen) as second ligand, the three kinds europium (III) ternary complexes were prepared by precipitation method at 60 °C. The complexes were characterized by fluorescence spectroscopy (FS), Fourier transform infrared spectroscopy (FT-IR), thermogravimetry and differential scanning calorimetry (TG-DSC) and color coordinates. The results show that three red light-emitting europium (III) ternary complexes can emit strong red characteristic fluorescence. Thereinto, Eu(TTA)3Phen has the best luminescent performance. The excitation spectrum of Eu(TTA)3Phen is 395 nm, the characteristic emission peak is at 612 nm, and the color coordinate is (0.66, 0.34). Eu(TTA)3Phen show good thermal stability which is decomposed more than 200 °C.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
JOURNAL OF MEMBRANE SCIENCE
·
2019
·
IF 7.015
Chunqing Cai,Fan Yang,Zhigang Zhao,Qiuxia Liao,Ruixi Bai,Wanghuan Guo,Peng Chen,Yang Zhang,Hao Zhang
This paper first reports on the high-selective separation and recovery of Li(I) from Na(I) and K(I) using the polymer inclusion membrane (PIM) system containing both thenoyltrifluoroacetone (TTA) and trioctylphosphine oxide (TOPO) as the carrier molecules, and cellulose triacetate (CTA) as the base polymer. To characterize the PIM, we used Fourier Transform infrared (FT-IR) spectroscopy, scanning election microscopy (SEM) and thermogravimetric analysis (TGA). The optimized results of this work showed that initial flux ( J 0 ) of Li(I) that was as high as 1.04 × 10 −2 mol m −2 h −1 , corresponding to permeability ( P ) of 3.62 × 10 −3 m h −1 , were recorded using the PIM composed of 50 wt% CTA and 26.74 wt% TTA + 23.26 wt% TOPO from a feed phase containing Li(I), Na(I) and K(I) in an alkaline chloride solution into an acceptor phase containing 0.1 M HCl. Li(I) was transported successfully to the acceptor phase but Na(I) and K(I) barely passed in the first 20 h. The separation factor ( S F ) of Li(I) over the Na(I) and K(I) respectively ( S F L i ( I ) / N a ( I ) ≒ 54.25, S F L i ( I ) / k ( I ) ≒ 50.60) demonstrated that Li(I) can be high-selectively separated. It is expected that this membrane can be applied for selective recovery of Li(I) from salt lakes or sea water that contains significant concentrations of Na(I) and K(I).
研究领域:
材料科学
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
Energy Material Advances
·
2026
·
IF 17.4
Yifan Lv,Shuang Liu,Peiyao Liu,Wenyu Lai,Yunfei Cai,Bingchen Huo,Fengxia Kuang,Baolin Li,Cun-Yue Guo
Organic thermoelectric materials offer flexible, solution-processable energy harvestingfor wearable electronics, yet their low power factors (PFs) impede practical applications.Here a dual phase interfacial engineering strategy is presented that decouples thesechannels by integrating organic small molecules (OSMs), thieno[2',3':4,5]thieno[3,2-b]thieno[2,3-d]thiophene (TTA) derivatives, with Ag⁺(Ag) ionic bridges on single-walled carbon nanotubes (SWCNTs) networks. Hybridizing TTA and their derivativeswith SWCNTs affords flexible thermoelectric composites. Subsequent AgF solutiontreatment further strengthens interfacial coupling between the OSMs and SWCNTs. Byintroducing Ag+ and in situ generated Ag nanoparticles, the Seebeck coefficient issignificantly enhanced while maintaining high electrical conductivity, leading toremarkable improvement in composites’ PF value. The optimized 2I-TTA (30%)-AgF/SWCNT films achieve a room temperature PF of 995.37 ± 6.01 μW m−1 K−2, retainover 88.3% of their initial power factor after 10, 000 bending cycles, and sustain stableoutput under temperature gradients up to 160 °C. Thermoelectric generator made of 2I-TTA (30%)-AgF/SWCNT composite and n-type SWCNTs generates a maximumpower density output of 186.79 μW g−1 at ΔT = 50 K. This work establishes metal ion-mediated interfacial engineering as a novel paradigm for high-efficiency, durable, andwearable energy harvesting technologies.Key words: Organic small molecules; Composite thermoelectric materials; Silver;Energy filtering effect; Wearable energy harvesting
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2018
·
IF 5.667
Mengli Xu,Linyu Wang,Yi Xie,Yonghai Song,Li Wang
Here, a covalent organic framework with multiple redox-active state synthesized by amine-aldehyde condensation reaction between 4,4′,4′'-(1,3,5-triazine-2,4,6-triyl) trianiline and 2,5-dihydroxy terethaldehyde (COF DHTA-TTA ) was used as novel electrochemical sensing and biosensing platform at first time. The COF DHTA-TTA was demonstrated to be two-dimensional nanosheets with highly ordered conjugated structure and uniform mesopores about 3.67 nm. Electrochemical studies revealed that a ratiometric electrochemical sensor could be constructed by using COF DHTA-TTA itself as electroactive materials to determine hydrogen peroxide (H2O2) and pH level based on both current and potential signals. The single electrochemical sensor could monitor H2O2 concentration from 5.66 μM to 400 μM and pH level ranging from 11.0 to 3.0. Considering that the COF DHTA-TTA had good catalytic activity for oxygen reduction reaction in 0.2 M PBS (pH = 7.0), glucose oxidase was further loaded on COF DHTA-TTA via its nanosized pores and abundant active sites originated from N-doped skeleton, and the glucose biosensor exhibited good performances for glucose detection from 1.26 μM to 6.0 mM at −0.30 V, as well as from 0.60 μM to 6.0 mM at −0.53 V. The work provided good examples to construct electrochemical sensors based on redox-active COF.
研究领域:
材料科学
·
分析化学
·
生物医学工程
✓ 已验证
产品关联
DOI
高影响因子
ANALYTICA CHIMICA ACTA
·
2023
·
IF 6.2
Kang Zhang,Meng-Jiao Zhu,Yi-Wen Zhou,Xiao Liu,Feng Chen,Yu-Yang Zhou,Wan-Fei Li,Sheng Liu,Yun Jiang,Shou-Qing Liu
Latent fingerprint (LFP) powders are crucial in the detection of LFPs in forensic science. However, it is often plagued by poor image resolution and low contrast. Herein, enhanced LFP fluorescence (FL) visualizations are achieved by doping Eu(III) coordination compound Eu(TTA) 3 phen directly into SiO 2 microspheres instead of Eu(III) ions. Using the synthesized Eu(TTA) 3 phen-SiO 2 microspheres , the fine characteristic structure of LFP can be seen and recognized under 365 nm irradiation, up to Level 3. However, the Eu 3+ -SiO 2 microspheres were difficult to recognize the Level 2,3 fingerprint structure. The difference between the ridge and furrow gray values of Eu(TTA) 3 phen-SiO 2 microspheres is 2.1 times that of Eu 3+ -SiO 2 microspheres. The coordination effect increased the asymmetry around Eu(III) ions, resulting in the ultrasensitive 5 D 0 → 7 F 2 transition, thus increasing the FL intensity , and the uniform doping of the Eu(III) coordination compound into SiO 2 also reduced the surface FL quenching due to shielding from oxygen. Under this dual effect, the LFP performance of Eu(TTA) 3 phen-SiO 2 microspheres has been significantly improved. We believe that this novel and easy LFP visualization method is a promising routine in specific target detection including criminal investigation, customhouse check-in, and drug control.
研究领域:
法医学
·
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2022
·
IF 5.141
Wei Qi,Qiaolin Wu,Wen Wang,Jing Feng,Qing Su
Covalent organic frameworks (COFs) with pre-designed structures and superior photophysical properties have attracted significant attention due to their applications in photocatalysis. In this research, an imine-linked fluorinated 2D-COF (TFA-TTA-COF) material was feasibly fabricated from polycondensation of 2,3,5,6-tetrafluoroterephthalaldehyde (TFA) and 4,4′,4′'-(1,3,5-triazine-2,4,6-triyl)trianiline (TTA) in solvent-thermal methods. The TFA-TTA-COF material exhibited excellent crystallinity, high Brunauer-Emmett-Teller surface area of 1504 m 2 ·g −1 , and superior thermal and chemical stability. Considering the advantages of enhanced light absorption, effective charge separation and charge transfer, the prepared TFA-TTA-COF was employed as photocatalyst for the degradation of dyes. The degradation efficiencies of Eriochrome Black T (EBT) and Eriochrome Black A (EBA) dye in water could attain 89 % and 82 %, respectively. Furthermore, TFA-TTA-COF was found to show satisfactory photocatalytic performance with high conversion and selectivity in the photo-driven oxidative coupling of benzylamines. This work demonstrated the important contributions to the development of heterogeneous COFs-based photocatalysts.
研究领域:
材料科学
·
环境科学
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DOI
高影响因子
CHINESE CHEMICAL LETTERS
·
2014
·Vol. 25
·期 6
·892-896
·
IF 1.178
Ting-Ting Dai,Lei Liu,Dong-Liang Tao,Shi-Gang Li,Hong Zhang,Yu-Min Cui,Yong-Zhong Wang,Ji-Tang Chen,Kun Zhang,Wen-Zhong Sun,Xiao-Yun Zhao
Absolute quantum yield ( Φ ) is one of the most important parameters to evaluate the potential of novel materials. Lanthanide complexes Eu x Gd 1− x (TTA) 3 phens are synthesized with the ratio of Gd 3+ dopant concentration ranging from 10% to 90% to improve the absolute quantum yield. Eu x Gd 1− x (TTA) 3 phens possess similar infrared and ultraviolet spectra, showing that they have similar molecular structures. The absolute emission quantum yields of Eu x Gd 1− x (TTA) 3 phens are determined using a fluoromax-4 spectrofluorometer equipped with an integrating sphere. The fluorescence lifetimes of the Eu x Gd 1− x (TTA) 3 phens are measured in the same experiment. It was found that both absolute quantum yields and fluorescence lifetimes of Eu x Gd 1− x (TTA) 3 phens are of quasi-periodic variation with the change of the Gd 3+ dopant concentrations. The absolute quantum efficiency and fluorescence lifetime vary with respect to the Gd content in an opposite fashion, indicating that the rate of energy absorption by the Eu x Gd 1− x (TTA) 3 phens and the conversion to light energy is critical for the absolute quantum efficiency. The radiative rate constant K r and non-radiative rate constant K nr are calculated. The dependence of K r and K nr on the Gd 3+ dopant concentrations is very similar to that of absolute quantum efficiency. The radiation rate constant K r and absolute quantum efficiency have a linear relationship.
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DOI
高影响因子
Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 16
·6435-6443
·
IF 8.067
Xu Sang,Qingru Wang,Xiaoli Gao,Adnan Khan,Ziyu Chen,Jiaxin Yang,Ming Feng,Lisa Liu,Feng Song,Wei Huang
Based on the interaction between Eu(III) complexes and liquid crystals (LCs), three general approaches by using energy transfer, electric field controllable orientation of LCs and the multi-wavelength excitation are presented to obtain a tunable emitting color for rare earth (RE)/LC composites. The Eu(tta)3phen/E7 composites were prepared via a simple guest–host method. The interaction between the RE complexes and LCs is analyzed for the emitting color change of the composites. The E7 host not only facilitates the ultraviolet photon harvesting and subsequent energy transfer to Eu(tta)3phen, but also serves the regulation of the distortion of the symmetry around the Eu3+ ions. Experimental and Judd–Ofelt theoretic analysis of the Eu(tta)3phen/E7 composites indicates the improvement of the luminescence for Eu(tta)3phen in the anisotropic LC host. This modulation of emitting color for RE/LC composites may open the door to broaden the applications of RE ion doped materials.
研究领域:
材料科学
·
光学材料
·
液晶技术
·
发光与光子学
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2015
·
IF 3.368
Xiang Shen,Bing Yan
A series of luminescent Ln 3+ @bio-MOF-1 (Ln = Eu, Tb, bio-MOF-1 = Zn 8 (ad) 4 (BPDC) 6 O⋅2Me 2 NH 2 (ad = adeninate, BPDC = biphenyldicarboxylate)) are synthesized via postsynthetic cation exchange by encapsulating lanthanide ions into an anionic metal–organic framework (MOF), and their photophysical properties are studied. After loading 2-thenoyltrifluroacetone (TTA) as sensitized ligand by a gas diffusion (“ship-in-bottle”) method, it is found that the luminescent intensity of Eu 3+ is enhanced. Especially, when loading two different lanthanide cations into bio-MOF-1, the luminescent color can be tuned to close white (light pink) light output. Additionally, bio-MOF-1 and Eu 3+ @bio-MOF-1 are selected as representative samples for sensing metal ions . When bio-MOF-1 is immersed in the aqueous solutions of different metal ions , it shows highly sensitive sensing for Fe 3+ as well as Eu 3+ @bio-MOF-1 immersed in the DMF solutions of different metal ion. The results are benefit for the further application of functionalized bio-MOFs in practical fields.
研究领域:
无机化学
·
材料科学
·
分析化学
·
纳米生物技术
·
光物理学
·
配位化学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）