JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
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2015
·
IF 2.495
Fang Yu,Ling Jie Hou,Li Yuan Qin,Jian Bin Chao,Yu Wang,Wei Jun Jin
A new simple Schiff-base ligand 2-Hydroxy-1-naphthaldehyde-(2-pyridyl) hydrazone (HL) was synthesized and characterized as a fluorescent probe. In aqueous solution containing 10% ethanol (Hexamethylenetetramine-HCl buffer, pH5.3), HL selectively binds Al 3+ to form a 1:1 ligand/metal complex, resulting in a color change from colorless to yellow–green and a significant fluorescence enhancement at 454 nm. The addition of EDTA quenches fluorescence of the HL·Al 3+ complex, indicating that HL serves as a reversible chemosensor for Al 3+ . Under the optimum conditions, the dynamic range of the system was found to be linear up to 4.0 × 10 −6 M Al 3+ ions with a limit of detection of 36.6 nM. The probe is very effective for detection of intracellular Al 3+ through fluorescence microscopic imaging.
研究领域:
分析化学
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生物化学
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细胞生物学
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产品关联
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2018
·Vol. 42
·期 21
·17665-17670
·
IF 3.201
Zengchen Liu,Weijie Yang,Boshi Tian,Jin Liu,Wenping Zhu,Genwu Ge,Lina Xiao,Yuning Meng
In this paper, an excellent water-soluble platform derived from a β-cyclodextrin derivative and graphene oxide was synthesized and characterized. Moreover, by a supramolecular host–guest self-assembly interaction between the organic molecule and the water-soluble platform, an interesting supramolecular system was fabricated successfully. By fluorescence experiments toward several metal ions, a higher response toward Al3+ than other commonly coexistent metal ions in absolute water media (pH = 7.2) was shown. Meanwhile, a large binding constant (3.89 × 1012 M−1) between them was calculated by fluorescence titration experiments. In addition, fluorescence imaging in living cells was studied systemically, which exhibited a high fluorescence sensing activity toward Al3+. This study provides the first detailed supramolecular host–guest self-assembled nanosensor from graphene oxide and β-cyclodextrin derivatives. Its water-solubility and excellent sensing activity effectively enhanced the application value of the fluorescent nanosensor for tracking and detecting Al3+ in the environment and in organisms.
研究领域:
分析化学
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材料科学
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生物医学工程
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产品关联
DOI
高影响因子
RSC Advances
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2016
·Vol. 6
·期 30
·25420-25426
·
IF 3.289
Yang Li,Caiyun Liao,Shanshan Huang,Hui Xu,Baozhan Zheng,Juan Du,Dan Xiao
In the paper, a novel fluorescent sensor L based on phenolphthalein derivative bis-Schiff base was synthesized and characterized. Chemosensor L was found to be an excellent specific receptor for Al3+ via significant fluorescent enhancement resulting from the inhibition of an internal charge transfer (ICT) process and an efficient chelation-enhanced fluorescence (CHEF) effect. A good linear relationship was obtained in the Al3+ concentration from 0 to 50 μM with the detection limit reaching below 15 nM. Moreover, the addition of 2 equiv. of Cu2+ can almost completely quench the emission intensity of L due to a ligand–metal charge transfer (LMCT) process. The resulting L–Cu(II) complex showed a satisfactory sensing ability toward cysteine (Cys) through naked-eye and recovered fluorescence intensity with the detection limit of 0.36 nM. The fluorescence recovering process was caused by the stronger coordination ability of Cys with Cu2+ than with L and therefore free L was released from the L–Cu(II) complex. Furthermore, the sensor was used to detect Cys in practical samples with a high accuracy.
研究领域:
分析化学
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生物化学
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产品关联
DOI
高影响因子
JOURNAL OF FLUORESCENCE
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2022
·Vol. 33
·期 1
·177-184
·
IF 2.525
Sang Fuming,Xiong Tiedan,Wang Weijie,Pan Jianxin,Shi Huahua,Zhao Yan
A novel fluorescence probe for the detection of Al 3+ was developed based on methionine protected gold nanoclusters (Met-AuNCs). A fluorescent Schiff base (an aldimine) is formed between the aldehyde group of salicylaldehyde (SA) and the amino groups of Met on the AuNCs, and developed for selective detection of Al 3+ in aqueous solution. Al 3+ can strongly bind with the Schiff base ligands, accompanied by the blue-shift and an obvious fluorescence emission enhancement at 455 nm. The limits of detection (LODs) of the probe are 2 pmol L −1 for Al 3+ . Moreover, the probe can successfully be used in fluorescence imaging of Al 3+ in living cells (SHSY5Y cells), suggesting that the simple fluorescent probe has great potential use in biological imaging.
研究领域:
分析化学
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生物医学
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材料科学
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产品关联
DOI
PubMed
高影响因子
Polymers
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2022
·Vol. 14
·期 19
·3970
·
IF 4.967
Ming Chang,Xiaomin Ma,Xianshu Dong,Yuping Fan,Ruxia Chen
It is important to identify an environmentally friendly and efficient flocculant that can replace polyacrylamide for the solid–liquid separation of coal wastewater. In this study, to explore whether chitosan can be used as an environmentally friendly and efficient flocculant for the solid–liquid separation of coal wastewater, AlCl3–chitosan was used to conduct flocculation–sedimentation and dewatering tests under different chitosan dosages and shear-strength conditions for the prepared coal wastewater. Focused beam reflectance was measured to dynamically monitor the number of refractory fine particles, and the settled flocs were photographed and analyzed with microscopy to explore the effect of AlCl3–chitosan on the flocculation settlement effect and floc characteristics. The synergistic mechanisms of AlCl3and chitosan were investigated using quartz crystal dissipative microbalance and zeta potential measurement. The results showed that the addition of chitosan can significantly improve the flocculation–sedimentation and dewatering effects of coal wastewater. A reasonable dosage under a certain shear strength is conducive to the reduction of fine slime particles, which results in a compact floc structure, increases the floc size, and improves the settling effect. The synergistic effect of AlCl3–chitosan improved the electric neutralization and adsorption bridging abilities of the chitosan, and the mixed solution of AlCl3and chitosan had stronger adsorption on the carbon surface. This study provides a new approach to the selection of flocculants for coal wastewater treatment.Keywords:coal wastewater;chitosan;solid–liquid separation;FBRM;QCM−D
研究领域:
环境科学
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材料科学
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产品关联
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
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2018
·
IF 5.116
Hao Wang,Yanju Wei,Jitong Wang,Donghui Long
Submicrometer-sized LiNi 1/3 Co 1/3 Mn 1/3 O 2 (NCM111) crystals with homogeneous composition are prepared via a polymer-chelation chemical solution process. The complexed chelate agents of ethylenediaminetetraacetic acid (EDTA) and polyethyleneimine (PEI) could chelate all metal ions in one step, with intimate mixing at the atomic level, ensuring a homogeneous ion distribution in the product. The as-prepared NCM111 crystals have a narrow particle size distribution with an average size of 250 nm, which can effectively shorten the lithium ion diffusion path. In addition, the NCM111 crystals majorly consist of electrochemically active {010} facets and low Li + /Ni 2+ cation mixing, thus delivering a high reversible discharge capacity of 156.1 mAh g −1 after 100th cycles and good rate capability of 102.7 mAh g −1 at 10 C. Furthermore, it is found that the induction of excess Li could deteriorate the rate capability and increase the Li + solid-state diffusion resistance. However, Al 3+ doping could effectively improve the cycling performance, while Nb 5+ doping could increase significantly the discharge capacity as well as rate capability. Owing to the flexibility of the chelating chemistry , the synthesis should be extended to prepare other multicomponent single-crystal cathodes with homogeneous composition and desired substation.
研究领域:
材料科学
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化学
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电化学
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电池技术
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DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
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2025
·
IF 6.3
Ruiyuan Zhuang,Yuxin Wang,Junhong Wang,Jianfeng Zhan,Jiangnan Yan,Yongqing Li,Yaru Chen,Wenhui Mo,Jian-chun Wu,Jianhong Yang,Lixiang Wang
Aluminum ion batteries (AIBs) are deemed an encouraging prospect for energy storage applications owing to their beneficial attributes, including considerable theoretical specific capacity, heightened safety measures, affordability, and plentiful availability of materials. However, the inherent characteristics of cathode materials have greatly limited the further development of AIBs. In this work, SnS 2 @CNFs composites were prepared via a combination of hydrothermal and electrospinning strategy. Specifically, SnS 2 nanosheets, resembling flakes in their two-dimensional form, uniformly coated on the carbon fibers, forming a three-dimensional interconnected network seamlessly integrated with the continuous carbon substrate. This structure is conducive to shortening the ion transmission path, ensuring sufficient electrolyte contact, and facilitating electron transfer and transfer at the phase interfaces. As a self-supporting electrode for AIBs, the SnS 2 @CNFs electrode exhibited remarkable cyclability, retaining a residual capacity of approximately 70 mA h g −1 with a Coulombic efficiency close to 97 % after 500 cycles at 100 mA g −1 . The good cycle stability originates from the flexible carbon substrate effectively alleviating the volume expansion phenomenon caused by ion deintercalation in SnS 2 . In addition, first-principles calculations show that the substitution behavior of aluminum atoms in SnS 2 crystals exhibits obvious selectivity, but exceeding the energy threshold of conventional substitution reactions indicates that reactions are unlikely to occur. By constructing models to explore the embedding path of aluminum ions in SnS 2 crystals, the results showed that the embedding behavior mainly occurs in the van der Waals gap interstitial rather than within the crystal monolayer, and the sulfur atom top position is used as the optimal embedding site.
研究领域:
材料科学
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电化学
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计算物理学
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产品关联
DOI
高影响因子
RESOURCES CONSERVATION AND RECYCLING
·
2025
·
IF 10.9
Yusen Wu,Jiahua Lu,Keyi Lin,Jujun Ruan
With the development of the new energy industry, a large number of photovoltaic modules are produced, used, promoted, and will reach the end of their life cycle shortly. The recycling of photovoltaic modules is an important work in the closed-loop development of the new energy industry, and the first step of recycling is decapsulation. Hydrometallurgical decapsulation has been considered an important recovery method due to energy saving and the ability to recover all components of photovoltaic laminates. However, the problems of low decapsulation efficiency and pollutant discharge need to be solved. This article reports a new green linalool solvent employed for decapsulation. The experimental results show that the delamination rate of the glass of the laminates with particle sizes of 0.5, 1, 2, and 3 cm can all reach 100% in 4 hours. Furthermore, we propose a strategy to improve the efficiency of decapsulation by enhancing the bond-breaking tendency of the crosslinking bridge formed by the coupling agent in the EVA-glass interface. It indicates that the Lewis acid properties of Al 3+ and its coordination effect with nitrogen atoms promote the hydrolysis of C N bonds in the amid group. The increase of decapsulation efficiency by adding Al 3+ increases with the decrease of laminate particle size. When the particle size is 0.5 cm and 1 cm, the efficiency is increased nearly two times. This study provides a new idea for improving the green attributes and efficiency of hydrometallurgical decapsulation of photovoltaic laminates.
研究领域:
材料科学
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环境科学
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化学工程
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产品关联
DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2022
·
IF 9.965
Wei Liu,Hui Sheng,Liu Zhu,Yiwen Zhang,Wenxu Liu,Yuwei Zhao,Qian Li,Yong Peng,Zhongpeng Wang
The classical strong metal-support interaction (SMSI) plays a key role in improving thermal stability for supported Au catalysts. However, it always decreases the catalytic activity because of the encapsulation of Au species by support. Herein, we demonstrate that Al 3+ is a functional additive which could effectively improve both catalytic activity and sintering resistant property for H 2 pretreated Al 3+ doped CeO 2 supported Au (AuCeAl) catalyst at high temperature. The physical characterization and in-situ DRIFTS results provide insight that more oxygen vacancies generated by Al 3+ doping could be as preferential adsorption sites for CO molecules when the encapsulation of Au species occurred, which is certificated by an accelerated formation of bicarbonate species. In the meantime, smaller Au nanoparticles with higher dispersion (2.8 nm, 85.63%) is achieved in AuCeAl catalysts, compared with that in CeO 2 supported Au (AuCe) catalysts (5.1 nm, 36.17%). Additionally, the as-prepared AuCeAl catalysts also have superior catalytic performance even after calcination at 800 °C in air.
研究领域:
催化化学
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材料科学
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产品关联
DOI
PubMed
高影响因子
MOLECULES
·
2023
·Vol. 28
·期 2
·758
·
IF 4.6
Hao-Jie Bai,De-Yan Qi,Hong-Wei Li,Yuqing Wu
A significant emission enhancement (>100-fold) of glutathione-capped bimetallic gold and copper nanoclusters (AuCuNC@GSH) was achieved by assembling with Al3+ions and by assembly-induced emission enhancement (AIEE). Further chelation of myricetin to Al3+resulted in emission quenching of AuCuNC-Al3+, which was applied to specifically detect myricetin. Two linear responses were shown in the range of 0–1.5 μM and 1.5–50 μM, separately, leading to a low limit of detection at 8.7 nM. The method was successfully and accurately applied to myricetin determination in grape juice, which showed good application for real samples. Finally, the in-depth mechanism revealed that both the chelation of myricetin and Al3+and the inner filter effect (IFE) between myricetin-Al3+and AuCuNC-Al3+greatly contributed to the quenching response of myricetin. Therefore, the present study provides an easy way to improve the fluorescence property of metal nanoclusters. Additionally, it supplies a cost-effective and easily performed approach to detect myricetin with high selectivity and sensitivity.
研究领域:
分析化学
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生物传感
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材料科学
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产品关联
DOI
PubMed
高影响因子
SENSORS AND ACTUATORS A-PHYSICAL
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2025
·
IF 4.9
Shuaishuai Han,Jianyan Feng,Ming Teng,Qingquan Zhang,Wenjing Wang,Haoqiang Liu,Mengyuan Li,Xiaomin Luo
Natural polymers have emerged as pivotal materials for flexible sensors due to their inherent biocompatibility, biodegradability, and complex supramolecular structures and abundant functional groups of these polymers provide a substantial number of binding sites for the composite of conductive structural units. Despite these advantages, conventional natural polymer-based sensors exhibit limited operational stability under extreme environmental conditions. To address this challenge, we develop a flexible sensing material (PCM) through Zr 4+ /Al 3+ coordination crosslinking, integrating collagen fiber's hierarchical network with phosphorous-containing WPU (P-WPU) and carboxylated multi-walled carbon nanotubes. The optimized PCM demonstrates good pressure sensitivity (0.69 kPa −1 ) across a broad detection range (1.81–130.66 kPa), rapid response/recovery (100 ms each), and remarkable cyclic stability (>12,000 cycles). Moreover, the PCM exhibits outstanding flame retardancy with a limiting oxygen index (LOI) of up to 25.17 %.Furthermore, tests in simulated extreme environments demonstrated the stability of PCM in extreme conditions (-40–85 ℃, pH 1–13). PCM enables motion capture in extreme environments and can even serve as an intelligent skin for robots. This study proposes a novel, eco-friendly approach to the development of flexible sensors and offers a novel concept for sensing applications in extreme environments.
研究领域:
材料科学
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柔性电子学
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传感器与传感技术
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聚合物纳米复合材料
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机器人学
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环境稳定性
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产品关联
DOI
高影响因子
Sustainable Energy & Fuels
·
2022
·Vol. 6
·期 8
·2020-2037
·
IF 6.813
Chang Lin Liu,Yang Liu,Xing Liu,Yun Gong
The complex [Me2NH2]V3O7 was synthesized solvothermally, and possessed a 2D [V3O7]− anionic layer with an interlayer [Me2NH2]+ cation. After cationic exchange and subsequent annealing, Al3+, Mn2+ or Zn2+-doped V2O3/C composites were obtained. Among them, oxygen-deficient Al3+-doped V2O3/C exhibits outstanding long-term cycling durability even with a high carbon content of 23.97 at%. The capacity retention is 94.7% after 1000 discharge/charge cycles at 5 A g−1, which is superior to V2O3/C, Mn2+ and Zn2+-doped V2O3/C composites. Furthermore, Al3+-doped V2O3/C with oxygen vacancies displays excellent rate performance with 90.3% capacity retention when the current density is increased 50-fold, and can deliver an average specific capacity of 340, 360, 365, 356, 343 and 307 mA h g−1 at 0.1, 0.2, 0.5, 1, 2 and 5 A g−1, respectively, and the capacity returns to 375 mA h g−1 at 0.1 A g−1. A series of ex situ characterizations revealed that Al3+-doped V2O3/C completely transformed into Al3+-doped Zn3(OH)2V2O7·2H2O during the 1st charge process. However, the capacity of the sample far exceeds the theoretical capacity of Zn3(OH)2V2O7·2H2O (224 mA h g−1), which is associated with the doping of Al3+ and its dominant surface-controlled the capacitive behavior. It is also expected that the transformation occurs in the inner accessible sites of the nonporous V2O3, which are provided by its rich oxygen vacancies. Although DFT calculations indicate that the doping of Al3+ into Zn3(OH)2V2O7·2H2O is energetically unfavorable, the present work provides a facile strategy for the preparation of Al3+-doped Zn3(OH)2V2O7·2H2O. Furthermore, the doping of Al3+ can change the host framework of Zn3(OH)2V2O7·2H2O, the positions, and the micro-environments of the inserted Zn2+, thus decreasing the binding energy and diffusion barrier of Zn2+.
研究领域:
材料科学
·
能源存储与转换
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DOI
高影响因子
危险品化学品经营许可证（带存储）