Journal of the Taiwan Institute of Chemical Engineers
·
2021
·
IF 5.876
Liu Yang,Yu-Long Liu,Xian-Xian Ji,Cheng-Guo Liu,Ying Fu,Fei Ye
Background A novel luminescent sensor with dual-emitting platforms, Tb@UiO-66 , was used for highly detecting Sm 3+ and teflubenzuron. Methods Tb@UiO-66 was synthesized on basis of the exchange of guest molecules, where Tb 3+ ions were encapsulated into the cages of UiO-66 . Significant finds The results of multiband fluorescence originated from the linker-to-cluster charge transfer and the characteristic emission of Tb III . Tb@UiO-66 displayed luminescence enhancements or quenches according to small molecules. Especially for Sm 3+ and teflubenzuron, the characteristic peaks of Tb@UiO-66 at 490, 545, 585, and 621 nm increased with the increasing of the concentration of the analytes, where Tb@UiO-66 exhibited the effect of luminescence enhancement. The detection limits for detecting Sm 3+ and teflubenzuron were 0.09 μM and 0.21 μM, and the changes of luminescence intensities could be observed by naked eyes under the UV light at 365 nm. Tb@UiO-66 could also be used to detect teflubenzuron in real water samples. Tb@UiO-66 could be reused for at least 5 cycles for the detection of Sm 3+ and teflubenzuron with the framework of Tb@UiO-66 uncollapsed. These results implied that the integration of Ln III luminescent materials and Zr-MOFs by doping method provided a new strategy for fabricating novel luminescent sensors for detecting polluting small molecules.
研究领域:
材料科学
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环境科学
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分析化学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF HAZARDOUS MATERIALS
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2020
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IF 9.038
Xiaohong He,Kun Jia,Yun Bai,Zhongyuan Chen,Yiyao Liu,Yumin Huang,Xiaobo Liu
Simultaneous detection of multiple heavy metal ions (HMI) is of great importance for the environmental monitoring, and the analytical tools based on multiband emissive fluorescent probes have been regarded as one of the most promising candidate for multiple HMI detection. Herein, the rod-coil amphiphilic block copolymer (BCP) with intrinsic blue fluorescence emission has been synthesized and subsequently employed to encapsulate two types of hydrophobic quantum dots (QD) with green and red fluorescence emission via the three dimensionally confined emulsion self-assembly, leading to the generation of white-emitting superparticles showing good colloidal stability and stable aqueous phase fluorescence. Furthermore, it was found that the fluorescence emission intensity of obtained superparticles can be selectively quenched by Ag + , Hg 2+ , Cu 2+ and Fe 3+ ions via different mechanisms, and the four metal ions can be further discriminated according to their distinct combinational quenching effects onto three fluorescent bands of white-emitting superparticles. In addition, an analytical model was built to enable the simultaneous detection of Cu 2+ , Hg 2+ and Fe 3+ in the real sample. Basically, the current work opens the new way to fabricate fluorescent probes with multiple emission bands, which can be easily adapted to prepare more complicated QD encoded fluorescent probes for high throughput detection.
研究领域:
环境科学
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分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF RARE EARTHS
·
2025
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IF 7.2
Jingheng Nie,Siqi Li,Chaohong Liao,Xicheng Liu,Yiping Wu,Ziying Zhong,Renping Cao,Bang Lan,Jing Wang
Achieving robust multiband luminescence in metal halide perovskites under blue-light excitation remains challenging due to inefficient energy transfer and weak absorption of lanthanide (Ln 3+ ) ions. Herein, Te 4+ /Ln 3+ (Ln=Er, Ho, Tm, Sm) co-doped Cs 2 NaInCl 6 perovskites were developed as an efficient multiband luminescence material. A unique broadband excitation centered at 435 nm (5s 2 → 5s 1 5p 1 electronic transitions) was introduced through Te 4+ doping, which demonstrates enhanced blue-light compatibility compared to conventional sensitizers such as Sb 3+ /Bi 3+ . Systematic investigations reveal that self-trapped excitons generated in [TeCl 6 ] 2− octahedrons act as efficient energy donors, enabling broadband sensitization of Ln 3+ ions. The optimized Te 4+ /Ln 3+ codoped systems exhibit characteristic multiband emissions spanning both visible and near-infrared (NIR) wavelengths under 435 nm excitation, achieving NIR photoluminescence quantum yields of 10.26% for Te 4+ /Tm 3+ (1223 nm emission) and 9.36% for Te 4+ /Er 3+ (1540 nm emission). These findings establish Cs 2 NaInCl 6 :Te 4+ /Ln 3+ as a versatile optoelectronic platform, combining blue-LED-driven multicolor emission with exceptional stability for practical applications.
研究领域:
材料科学
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光学
✓ 已验证
产品关联
DOI
高影响因子
Surfaces and Interfaces
·
2024
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IF 5.7
Shaoxi Zhang,Xiangnan Chen,Zhiyong Zhang,Xiaolong Song,Guangjun Gou
Nowadays, the practical application of electromagnetic absorbing materials required lightweight, high efficiency and especially broadband. Wherein, graphene-based electromagnetic absorbing materials had received extensive attention. The conventional design was to introduce magnetic particles onto graphene, but often lead to narrow bandwidth, hard to regulate, due to the lack of intrinsic coupling between magnetic particles and dielectric graphene. In principle, defect engineering could induce intrinsic ferromagnetism into graphene while increasing dielectric polarization loss, could be an effective means of expanding and regulating electromagnetic absorbing bands. Thus, in this paper, Cu/Fe 3 O 4 heterogeneous nanospheres was constructed onsite defect-rich graphene to realize broadband electromagnetic absorbing modulation. The optimal RL value of Cu/Fe 3 O 4 /GE could reach −45.5 dB with obvious multi-band absorption, which was mainly attributed to the synergistic enhancement of defect-induced polarization loss, multiple interfacial polarization loss, as well as collaborative multipath magnetic loss. This work provides reference way for lightweight multi-band electromagnetic absorbing materials design.
研究领域:
材料科学
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电磁学
✓ 已验证
DOI
高影响因子
TEXTILE RESEARCH JOURNAL
·
2023
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IF 2.3
Ying Su,Xiaoming Zhao,Zhe Feng
Infrared camouflage textile materials have the advantages of softness, portability, and wearability. They are the main raw materials of infrared camouflage clothing, backpacks, camouflage nets, and tents. In this paper, from the perspective of reducing infrared emissivity to achieve the purpose of camouflage, metal materials were selected as functional particles and combined with textile materials to prepare polyurethane infrared camouflage composite materials with low emissivity, whose lowest emissivity in the wavelength range of 2–22 μm can reach 0.58. On this basis, two kinds of low infrared emissivity composite materials that can be used for multi-band camouflage were developed. One is to add modified graphene into the coating to improve the conductivity of the coating and reduce the gloss of the coating, to prepare visible and infrared camouflage coated fabric. When the amount of graphene is 10% of the filler content, the coated fabric has low gloss and low emissivity at the same time. Compared with the fabric without graphene coating, the glossiness is reduced by 31%, while the infrared emissivity is only increased by 0.1. The second is to prepare composite materials with infrared camouflage and microwave absorption functions by compounding low infrared emissivity and microwave absorbing coating. The minimum infrared emissivity of the two composites was 0.76 and 0.58, respectively. In this study, a variety of materials was used to prepare low infrared emissivity fabrics with low glossiness or good microwave absorption capacity, which provided a reference for the preparation of multi-band camouflage fabrics and was expected to be applied in the field of military camouflage.
研究领域:
材料科学
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军事技术
✓ 已验证
DOI
高影响因子
Advanced Optical Materials
·
2024
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IF 8
Lujie Song,Ying Dong,Biao Zhao,Youping Wu,Jianping Deng
Photochromic circularly polarized luminescence (CPL) demonstrates broad application prospects in the field of advanced functional materials. However, the current photochromic CPL focuses predominantly on single-band CPL adjustment, and how to achieve dynamically tunable CPL in multi-band is still highly challenging. This work reports the success in utilizing reversible photochromism for realizing full-color CPL emission. Photochromic flexible films are created consisting of triple components: spiropyran (SP) working as photochromic matter, polyurethane (PU) as matrix, and chiral helical polyacetylene as chiral component. Further introducing blue fluorophore 9-anthracene carboxylic acid (ACA) in the film, blue CPL and red CPL are emitted respectively through selective absorption/transmission and circularly polarized fluorescence energy transfer (CPF-ET). Doping the photochromic film with diverse fluorophores provides full-color CPL emission. Adding Zn 2+ further intensifies fluorescence and CPL via forming merocyanine (MC)-Zn 2+ complex. Taking advantage of the diverse fluorescence and CPL emission, anti-counterfeiting, and secondary encryption application of the resulting photochromic CPL materials are demonstrated.
研究领域:
材料科学
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光学
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化学
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产品关联
DOI
高影响因子
NANOTECHNOLOGY
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2021
·Vol. 32
·期 39
·395703
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IF 3.874
Zhihua Li,Xin Ding,Bing Yu,Yu Min,Bin He,Youqing Shen,Hailin Cong
Near-infrared (NIR) emission materials can be widely applied in various fields, such as food detection, imaging, treatment, electronic products. With the trend of miniaturization of equipment, smaller materials are needed. In this work, we successfully synthesized a series of M2Ga2GeO7:N3+ (M = Ca, Ba, Sr; N = Cr, Nd, Er) samples and then focused on the study of Nd3+ doped Sr2Ga2GeO7 (SGGO). A series of SGGO:xNd3+ sub-micron phosphors were prepared via a microwave-assisted sol–gel process combined with subsequent calcination at 750 ℃, and the structural information and luminescent properties were systematically studied. SGGO is a representative tetragonal crystal and belonging to the space group of P4¯21m (113). The Nd3+ ions occupy eight-coordinated Sr2+ sites in the crystal lattice. From SEM analysis, the average particle size distribution is 219.7 ± 41.4 nm. The sub-micron phosphors have rich excitation spectra ranging from 350 nm to 850 nm and can produce multiband NIR emissions of 1331, 1056, and 905 nm when excited by ultraviolet and NIR light. The maximum emission intensity was obtained by optimizing the doping ratio of Nd3+ ions. A commercial chip was then utilized to fabricate light-emitting diodes (LEDs) to verify its application potential in NIR-II mini-LEDs. Compared with blue light LEDs, the as-prepared LEDs had good imaging penetration depth and could be clearly observed under 10 mm of chicken breast coverage. The maximum imaging penetration depth can be 33 mm.
研究领域:
材料科学
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光学
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生物医学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CARBON
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2022
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IF 11.307
Xiao-Ying Fu,Qi Zheng,Lin Li,Mao-Sheng Cao
It is still a challenging project for developing electromagnetic (EM) wave absorption materials with the properties of multi-band absorption in the field of microwave absorption . Herein, honeycomb-like MoSe 2 @reduced graphene oxide (RGO) composites are successfully constructed by a facile one-step solvothermal method. The polarization and conductive loss can be precisely tailored by vertically implanting MoSe 2 nanosheets on the RGO sheet. It is notable that three-band absorption, including S, X, and Ku bands, was achieved in the composites. The optimized MoSe 2 @RGO composite exhibits excellent microwave absorption performance, the maximum reflection loss (RL) value can reach −56.9 dB and an effective absorption bandwidth (EAB) value can reach 4.12 GHz. The excellent microwave attenuation capability is attributed to the synergy effect of conductive loss, multiple relaxations, and excellent impedance matching in the composites. Therefore, this work provides a new paradigm for developing efficient multifunctional EM wave absorbers.
研究领域:
材料科学
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电磁学
✓ 已验证
DOI
高影响因子
COLLOID AND POLYMER SCIENCE
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2025
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IF 2.3
Liu Yujie,Wu Xinheng,Zhang Hao,Tan Changle,Sha Xiang,Miao Lifeng,Xue Yabo,Li Ning
Polymer silicone elastomers have attracted extensive attention in fields such as human- computer interaction and health monitoring. However, traditional silicone materials are prone to irreversible damage during usage, and most of them can only self-healing under ultraviolet light of specific unfriendly wavelengths. This is harmful to the user’s health and restricts their application in multi-band exposure scenarios. Hence, there is an urgent necessity to explore materials that can self-healing under diverse conditions. In this research, carbon nanotubes (CNTs) were integrated as a photothermal conversion agent into self-healing poly(siloxane-urethane) (PSiUe) materials to fabricate a poly(siloxane-urethane)-carbon nanotube composite (PSiUe-CNTs) with multi-band self-healing properties. The impacts of different CNTs contents on the mechanical properties, self-healing properties, and thermal stability of the PSiUe-CNTs composites were investigated. By analyzing the mechanical properties of the composites with different CNTs content, it is found that the composites exhibit excellent mechanical properties when the CNTs content is 8%. Further analysis of mechanical properties before and after self-healing showed that PSiUe-CNTs were in ultraviolet light (365 nm), visible light (400–760 nm), near-infrared light (0.78–1.4 μm), and far-infrared light (25–1000 μm) under exposure can reach more than 90% self-healing efficiency in 6-h repair time, which achieve multi-band self-healing. By comparing the results of the analysis of the elements near the scratch, it is proved that the content of N, O, and Fe elements has been increased to different degrees. In addition, the recyclability analysis showed that the recyclability of the composites was excellent, with recovery efficiency above 90%. Therefore, this unique multi-stimulus-responsive self-healing polymer material can fulfill the requirements of various application scenarios, especially those closer to sunlight, and shows broad application prospects. Graphical
研究领域:
材料科学
·
高分子化学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2024
·
IF 8.3
Jialin Gao,Jialiang Zhou,Meng Yuan,Senlong Yu,Wujun Ma,Zexu Hu,Hengxue Xiang,Meifang Zhu
Electrochromic devices (ECDs), which are capable of modulating optical properties in the visible and long-wave infrared (LWIR) spectra under applied voltage, are of great significance for military camouflage. However, there are a few materials that can modulate dual frequency bands. In addition, the complex and specialized structural design of dual-band ECDs poses significant challenges. Here, we propose a novel approach for a bendable ECD capable of modulating LWIR radiation and displaying multiple colors. Notably, it eliminates the need for a porous electrode or a grid electrode, thereby improving both the response speed and fabrication feasibility. The device employs multiwalled carbon nanotubes (MWCNTs) as both the transparent electrode and the LWIR modulator, polyaniline (PANI) as the electrochromic layer, and ionic liquids (HMIM[TFSI]) as the electrolyte. The ECD is able to reduce its infrared emissivity (Δε = 0.23) in a short time (resulting in a drop in infrared temperature from 50 to 44 °C) within a mere duration of 0.78 ± 0.07 s while changing its color from green to yellow within 3 s when a positive voltage of 4 V is applied. In addition, it exhibits excellent flexibility, even under bending conditions. This simplified structure provides opportunities for applications such as wearable adaptive camouflage and multispectral displays.
研究领域:
材料科学
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军事应用
·
光学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
·
2023
·
IF 3.5
Chaoqun Zhang,Minghui Zhang,Kun Chen,Xuechao Liu,Yinghui Shi,Xiangyuan Wang,Jiabao Wan,Sheng Cui
A new mid-infrared fluoroaluminate-tellurite glass with low hydroxyl absorption coefficient and high visible-infrared transmittance was fabricated by the high temperature melt casting method. The melting equipment was innovatively designed by placing lift furnaces in the glove box filled with dry oxygen to assure waterless preparation. The glass prepared in the glove box had low hydroxyl absorption coefficients (0.09 cm −1 ), validating the effectiveness of the water removal equipment. The glass was obtained with excellent thermal stability (T g > 450 °C) and good resistance to crystallization based on thermodynamic analysis (ΔT > 100 °C). The transmittance of glass maintained 80–91.30 % from 371 to 5572 nm, achieving high transmittance in multi-waveband. The glass had excellent optical and composition homogeneity indicated by refractive index and EDAX. The results showed that this glass had high thermal stability, visible-infrared transmittance and optical homogeneity, making it a good candidate for multi-waveband optical window materials.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
·
2021
·
IF 8.128
Mingtao Qiao,Yurui Tian,Jiaxin Li,Xiaowei He,Xingfeng Lei,Qiuyu Zhang,Mingliang Ma,Xiaorong Meng
Multiband-compatible stealth materials play an increasingly crucial role in the field of modern military defence because they can enable the targeted objects to dodge advance detection technologies. In this study, chain-like Fe 3 O 4 @poly(ethyleneglycol dimethacrylate- co -methacrylic acid) nanocomposites were constructed as precursors through the magnetic field-induced distillation precipitation polymerisation. Then, the liquid-phase seed-mediated growth method, together with subsequent calcination , was applied to introduce SnO 2 shells and remove poly(ethyleneglycol dimethacrylate- co -methacrylic acid) shells, which led to the successful preparation of innovative core–shell Fe 3 O 4 @SnO 2 nanochains. The unique microstructure and appropriate components endowed nanochains with multiple functional applications. The minimum reflection loss value was approximately −39.4 dB (5.67 GHz), exhibiting excellent microwave absorption performance. The possible microwave absorption mechanisms involve interfacial polarisation, space charge polarisation, natural resonance, and multiple reflections and scatterings. The optimal infrared reflectivity reached 0.64, 0.51, and 0.37 in three atmospheric windows, indicating outstanding infrared stealth performance, which was attributed to the intense infrared reflection of SnO 2 shells. Furthermore, three nanochains showed different colours (dark green, brick red, and bright orange), revealing selection absorption for visible light . This can be attributed to the combined effect of visible responses of SnO 2 shells along with Bragg diffraction from the periodic arrangement of Fe 3 O 4 particles in a single nanochain. Thus, core-shell Fe 3 O 4 @SnO 2 nanochains can be considered as promising radar-infrared-visible compatible stealth materials. This discovery opens a new means to exploit multiband-compatible stealth materials.
研究领域:
材料科学
·
国防科技
·
纳米技术
✓ 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）