Journal of Materials Chemistry C
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2014
·Vol. 2
·期 15
·2684-2691
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IF 0
Gang Liu,Mingdi Yang,Lianke Wang,Jun Zheng,Hongping Zhou,Jieying Wu,Yupeng Tian
Three new Schiff base derivatives possessing vagarious blue aggregation-induced emission (AIE) characteristics in tetrahydrofuran (THF)–water were synthesized. Their photophysical properties in solution, aqueous suspension, film and crystalline states, along with their relationships, were comparatively investigated. The crystallographic data for dye 1 and dye 3 indicated that the existence of multiple intermolecular hydrogen bonding interactions restricted intramolecular vibration and rotation. Moreover, the sizes and growth processes of particles with different water fractions were studied using a scanning electron microscope (SEM) and dynamic light scattering (DLS). The results showed that the small homogeneous particles, assembled in an ordered fashion with appropriate water contents, exhibited distinct AIE behavior. Moreover, in a THF–H2O (4 : 1, v/v) solution of HEPES (20 mM) buffer, dye 2 showed fluorescence turn-on sensing towards Cr3+ and Al3+via chelation enhanced fluorescence (CHEF). The 2 : 1 stoichiometries of the sensor complexes (dye 2–Cr3+ and dye 2–Al3+) were calculated from Job plots based on fluorescence titrations.
研究领域:
有机化学
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材料科学
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分析化学
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MINERALS ENGINEERING
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2026
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IF 6
Chuilei Kong,Lingyun Liu,Hao Cheng,Linhua Jiang,Wei Ge,Chuanzhen Wang,Zeqing Liu
Based on DFT calculations and flotation experiments, this study systematically investigated the adsorption behavior of salicylhydroxamic acid (SHA) on kaolinite in three typical configurations (SHA-Kao, SHA_[Kao-Al], and [SHA-Al]_Kao). Results showed that SHA preferentially formed stable adsorption on the kaolinite (0 0 1) surface, and the presence of Al 3+ significantly enhanced adsorption. The SHA_[Kao-Al] configuration exhibited the most favorable adsorption energy (−550.87 kJ/mol) and Mulliken charge transfer (0.85 |e|), indicating that Al 3+ activates the kaolinite surface and facilitates electron transfer, thereby lowering adsorption energy. Flotation tests confirmed that SHA_[Kao-Al] achieved markedly higher recovery under acidic conditions (pH < 6), while the hydrolysis and precipitation of Al 3+ at higher pH suppressed surface activation, reducing recovery. FTIR and XPS results further confirm that SHA predominantly adsorbs on the Al-OH surface of kaolinite, and that the presence of Al ions markedly enhances both the coordination ability and the hydrogen-bonding strength between SHA and Al-OH sites on kaolinite, whereas only weak interactions occur on quartz. These results provide solid theoretical support for Al 3+ assisted selective flotation of kaolinite with anionic collectors.
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ELECTROCHIMICA ACTA
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2022
·
IF 7.336
Datian Li,Weiqing Liu,Wenhao Chen,Baoshuo Han,Xiaobo Xu,Qingqing Chang,Zhuoyu Yang,Yixiao Wang
The aqueous battery employing multivalent metal ions as charge carriers is theoretically a high energy density electrochemical energy storage device due to the fact that it carries more charges. However, the storage mechanism of multivalent metal ions, especially Al 3+ ions, in TiO 2 materials has not been established. A new model associated with the contribution of multivalent metal ions, water molecules and protons in the charging/discharging process of the electrode is established in this work. The storage mechanism of aqueous Al 3+ ion batteries is revealed from a new perspective by studying the relationship between the charge inside the TiO 2 film and the mass at the interface. More importantly, a highlighted work is to reveal the changes in the amount of interfacial free water molecules and the hydration number of Al 3+ ions due to the adsorption/desorption of hydrated ions during the charging/discharging process. The present work is of great significance for revealing the mechanism of multivalent cations on metal oxide surfaces in aqueous batteries, and meanwhile, the model established can also be extended to other fields such as supercapacitors , photovoltaics, and photocatalysis . The results obtained in this work may have an impact on the performance of energy storage batteries, especially the influence of the rearrangement of interface hydration ions and water molecules on the energy storage mechanism.
研究领域:
电化学
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材料科学
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能源存储
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DOI
高影响因子
ANALYTICA CHIMICA ACTA
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2019
·
IF 5.256
Xiaoli Luo,Xin Xie,Yingcai Meng,Taoli Sun,Jinsong Ding,Wenhu Zhou
Aluminum is a very important analyte, and developing biosensors for aluminum is an important analytical task. In this work, we report a novel mechanism to design colorimetric sensor based on gold nanoparticles (AuNPs). The AuNPs were prepared by reducing HAuCl 4 using catechols , and the resulting AuNPs can be directly adapted for Al 3+ detection without any post-modifications, showing high sensitivity and selectivity against other metal ions . Interestingly, our mechanistic studies revealed that Al 3+ -induced AuNPs aggregation was not due to the formation of interparticle crosslinks that refers to the design principle of most AuNPs-based colorimetric sensors reported before. But rather, Al 3+ competitively coordinated with the capping ligands on AuNPs surface through the formation of stable Al–O bond, which dissociated these ligands from AuNPs surface. As a result, the AuNPs aggregated due to the loss of surface stabilizers. Based on this mechanism, several catechols, including pyrocatechol (PC), 3-(3,4-dihydroxyphenyl) propionic acid (DHCA), levodopa (LDA) and dopamine (DA), were used as reductant to prepare AuNPs for Al 3+ sensing, and the AuNPs prepared by DA (AuNPs/DA) displayed the highest sensitivity, with detection limit of 0.81 μM. The sensor was then tested for Al content analysis in river water and food samples, and the results supported its practical applications. Importantly, this work expands the design principles for colorimetric sensors by using AuNPs.
研究领域:
分析化学
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纳米技术
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环境科学
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DOI
PubMed
高影响因子
ANALYTICA CHIMICA ACTA
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2016
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IF 4.712
Depeng Kong,Fanyong Yan,Yunmei Luo,Qianghua Ye,Siyushan Zhou,Li Chen
In this paper, a simple and effective method was designed to synthesize hydrophobic carbon dots. Subsequently, amphiphilic fluorescent carbon dots (A-CDs) were synthesized by further surface modification. The result A-CDs show excellent optical properties with a quantum yield of 16.9%. It was interestingly found that morin (MR) and its fluorescent metal-ion complex (MR-Al 3+ ) can successfully coordinate on the surface of A-CDs, the emission of A-CDs completely overlapped the absorption peak of MR-Al 3+ . Thus, the prepared A-CDs can be used as an effective fluorescent probe for Al 3+ based on a fluorescence resonance energy transfer process. The sensing platform can realize real-time detection of Al 3+ within 0.5 min. The fluorescence signals of the system were linearly correlated with the concentration of Al 3+ over a range of 8–20 μM, with a detection limit of 0.113 μM. The method was also successfully applied to image the distribution of Al 3+ in Human Umbilical Vein Endothelial Cells.
研究领域:
材料科学
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分析化学
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生物医学工程
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细胞生物学
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PubMed
高影响因子
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
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2019
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IF 2.931
Yan-Yan Chen,Qi Lin,You-Ming Zhang,Hong Yao,Tai-Bao Wei,Yan-Qing Fan,Xiao-Wen Guan,Guan-Fei Gong,Qi Zhou
Recently, ultrasensitive detection and multi-guest sensing have received extensive attention due to their high sensitivity and efficiency. Herein, we report a novel approach to achieve ultrasensitive detection of multi-analyte. This approach is concluded as “rationally introduce Aggregation-Induced Emission (AIE) into chemosensor”. According to this approach, by rationally introducing self-assembly moiety, the obtained chemosensor DNS could serve as a novel AIEgen and show strong AIE in DMSO/H 2 O (water fraction 80%) binary solution. Interestingly, a simple fluorescent sensor array based on the DNS has been developed. This sensor array could selectively sense Fe 3+ , Al 3+ , H 2 PO 4 − and L-Arg in water solution. More importantly, this sensor array shows ultrasensitive detection for Fe 3+ , Al 3+ and L-Arg. The LODs of the sensor array for Fe 3+ , Al 3+ and L-Arg are in the range of 3.54 × 10 −9 M to 9.42 × 10 −9 M. Moreover, H 2 PO 4 − could realize the reversible detection of Fe 3+ in the DMSO/H 2 O (water fraction 80%) solution. Meanwhile, DNS -based test papers and thin films were prepared, which could serve as test kits for convenient detection Fe 3+ , Al 3+ , and L-Arg in water. In addition, they could also act as efficient erasable fluorescent display materials.
研究领域:
分析化学
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材料科学
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DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
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2025
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IF 4.7
Shu-Yan Wei,Jia Chen,Shen-Yin Hou,Bo Sun,Jing Ren,Xin-Hui Wang,Lei Geng,Zhi-Ming Zhang,Hua-Qing Yin
A luminescent lanthanide metal–organic framework, [(TD)5Eu4(HCO2)2(DMF)4] (Eu-TD, TD/H2BTDB = 4,4′-(benzo[c][1,2,5] thiadiazole-4,7-diyl)dibenzoic acid), was synthesized via a solvothermal method by coordinating Eu3+ ions with the strongly emissive ligand H2BTDB. Single-crystal X-ray diffraction analysis reveals that the Eu-TD is in the hexagonal system with space group P6422. Eu-TD demonstrated exceptional selectivity toward Al3+ ions, exhibiting remarkable sensitivity with a low detection limit (limit of detection (LOD) = 0.04 μM) and excellent anti-interference properties. Eu-TD exhibits a pronounced Al3+-triggered luminescent turn-on response across varied aqueous environments, underscoring its viability for environmental monitoring applications. The selective Al3+ recognition in Eu-TD originates from Lewis basic N sites that strongly coordinate with Al3+ through acid–base interactions, concurrently enhancing the absorbance and amplifying the luminescence.
研究领域:
材料科学
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分析化学
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环境科学
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无机化学
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DOI
PubMed
高影响因子
FERROELECTRICS
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2015
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IF 0.469
Y Feng,W. L. Li,D. Xu,W.D. Fei
Ba(1-2x)LixAlxTiO3 (x = 0, 0.5, 1.5 and 2.5 mol%) ceramics were prepared by a conventional sintering method. The effects of Li+ and Al3+ content on the crystalline structure, dielectric and piezoelectric properties of BT ceramic were investigated. A better incorporation of Li+ and Al3+ ions recently occurs in our system without any impurity at x≤1.5 mol%. Ba(1-2x)LixAlxTiO3 ceramic can generate a large piezoelectric constant of d33 = 276 pC/N at x = 1.5 mol%. According to the dielectric properties results, the high piezoelectricity is possible from the suppressed energy barrier of second-like order transition induced by the incorporation of Li+ and Al3+ ions.
研究领域:
材料科学
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物理学
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DOI
高影响因子
Frontiers in Nutrition
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2025
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IF 5.1
Mo Li,Xueguo Chen,Xinxin Xia,Ting Zhang,Wenji Zhang,Qingxin Xu,Xin Zhao
Objective Aluminum (Al) and copper (Cu), as two common elements, have specific applications in the modern food industry. However, excessive levels of Al 3+ and Cu 2+ pose a major risk to ecosystems and human health. Thus, fast, sensitive, and portable detection technologies are indispensable for achieving source control of such hazardous substances. Methods We synthesized GSH-stabilized gold nanoclusters (G-AuNCs) and Nitrogen-doped graphene quantum dots (N-GQDs) via a straightforward hydrothermal method, and constructed GQDs@AuNCs ratiometric fluorescent sensors through electrostatic interactions for the rapid detection of Al 3+ and Cu 2+ in food samples. Results When the concentration of Al 3+ in the reaction medium increases, the fluorescence intensity (FI) of G-AuNCs incrementally enhances; in contrast, when the concentration of Cu 2+ increases, the FI of G-AuNCs is gradually quenched. Notably, the FI of N-GQDs remains unchanged throughout this process. When the concentrations of Al 3+ and Cu 2+ ions are within the ranges of 0.5–500 μM and 1–200 μM, respectively, the FI ratio (I 528 /I 412 )/(I 528 /I 412 ) 0 shows a strong linear correlation with the ion concentrations, with corresponding limits of detection (LOD) of 0.66 μM and 0.44 μM. Conclusion The fluorescent sensor features simple synthesis, rapid detection, and high sensitivity, making it well-suited for the rapid detection of Al 3+ and Cu 2+ in foods such as fried dough twists and shellfish.
研究领域:
分析化学
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食品科学
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纳米技术
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环境监测
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DOI
PubMed
高影响因子
JOURNAL OF NON-CRYSTALLINE SOLIDS
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2021
·
IF 3.531
Juping Ma,Yan Jiao,Chongyun Shao,Yan Sun,Fei Yu,Lili Hu
In this work, Tb 3+ /Al 3+ co-doped and Al 3+ single doped silica glasses are taken as the research objects, and X-ray is used as the simulated light source to study the photodarkening mechanism. Detailed optical properties of the glasses before and after X-ray irradiation and the results of electron paramagnetic resonance (EPR) indicate that the photodarkening effect is attributed to the valence changes of Tb 3+ ions and the energy transfer between Tb 3+ ions and related defects. In addition, this work revealed the relationship between valence changes behavior of Tb 3+ ions and various defects in glass matrix materials, deepening the understanding of the photodarkening mechanism in Tb 3+ doped oxide glass. We envisage that our finding provides a depth-theoretical support for the synthesis of Tb 3+ -doped oxide matrix glass fibers with excellent optical and anti-photodarkening performance.
研究领域:
材料科学
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光学材料
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光子学
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固体物理
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DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2023
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IF 4.3
Shoushun Huang,Hua Yan,Liangbin Lin,Hongyu Guo,Fafu Yang
Although some detection methods for Al 3+ have been presented, the rapid, simple and in-situ detection on Al 3+ with high selectivity and sensitivity was still anticipated. In this work, a “turn-on” and color-changed fluorescence sensor for Al 3+ was reported with the high selectivity and low detection limitation. A bis-tetraphenylimidazole Schiff base ( bis-TPMS ) was prepared by simple “1 + 2” condensation in 80 % yield. It displayed the strong “turn-on” purple fluorescence on sensing Al 3+ selectively among various metallic ions and anions. The detection limitation was as low as 1.56 × 10 -8 M. The sensing mechanism was deduced as Al 3+ was located in the opening cavity composed of HC = N, OH and NH groups. This sensing ability of bis-TPMS for Al 3+ was successfully used in test paper, on-site detection for real samples of gastric tablets, indicating the good application prospect in the simple, rapid and in-situ detection for Al 3+ in real samples.
研究领域:
分析化学
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材料科学
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DOI
高影响因子
Energy Storage Materials
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2024
·
IF 18.9
Kang-Ning Gao,Fan Bai,Zhuang Sun,Tao Zhang
Halide solid electrolytes , known for their stability to 4 V-class cathodes and deformability, emerge as promising candidates for high-performance all-solid-state batteries. Unfortunately, their synthesis often involves expensive elements, limiting mass production and cost-effectiveness. In this study, aliovalent-substituted Li 2 ZrCl 6 with Al 3+ is fabricated by one-step ball milling , exhibiting lower cost, higher ionic conductivity and a wider electrochemical window. The cost is reduced by approximately 13.4 % through a 25 % aliovalent substitution. Li + conductivity of Li 2+x Zr 1-x Al x Cl 6 increases from 0.12 mS/cm ( x = 0) to a peak of 1.13 mS/cm ( x = 0.25) at 25 °C, and activation energy (Ea) reduces from 0.43 eV to 0.29 eV, which is attributed to the extension of Li + migration pathways along intra- and inter- ab-plane around Al sites as revealed by AIMD and BVSE calculations. Both experimental result and calculation indicate that the substitution of Al 3+ improves the oxidation potential from 4.1 V in Li 2 ZrCl 6 to 4.3 V in Li 2.25 Zr 0.75 Al 0.25 Cl 6 . Furthermore, the excellent electrochemical performance of all-solid-state batteries is demonstrated using Al 3+ -substituted Li 2 ZrCl 6 and commercial LiNi 0.8 Co 0.1 Mn 0.1 O 2 . The unravelled multifaceted effects of Al 3+ aliovalent substitution in Li 2 ZrCl 6 solid electrolyte endow it highly advantageous for future applications in halide-based all-solid-state lithium batteries.
研究领域:
材料科学
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电化学
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储能技术
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固态化学
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电池技术
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DOI
高影响因子
危险品化学品经营许可证（带存储）