摘要:
Metal-organic frameworks are recognized as active electrode materials for rechargeable batteries due to their structural diversity, abundant electrochemical active sites and large ion diffusion channels. Herein, nickel-terephthalic acid metal-organic frameworks (Ni-PTA MOFs) with different crystal and morphology structures are synthesized via a facile solvothermal method by simply adjusting the nature of solvent. Due to the fewest guest molecules and porous structure, the Ni-PTA resulting from the combinations of DMF and EtOH exhibits the comparatively higher chemical/thermal stability and shortened ion diffusion pathway. As a result, it exhibits a high discharge/charge capacity of 2196.4 and 1762.3 mAh g-1 at the first cycle and retains 1300 mAh g-1 after 50 cycles at 100 mA g-1 when tested as anode materials for Li-ion batteries. Even when the current density reaches 4000 mA g-1, it maintains a capacity of 452 mAh g-1. This work provides possibilities for regulating the crystal and morphology structure of MOFs as high performance anode materials for lithium ion batteries.
摘要:
In this paper, a sensitive electrochemical sensor based on MnO2 nanoparticles functionalized carboxylated multi -walled carbon nanotubes (MnO2-c-MWCNTs) was prepared for the determination of curcumin. The synthesized materials have been fully characterized by instruments, such as X-ray diffraction (XRD), scanning electron mi-croscopy (SEM), cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The electro-chemical behavior of curcumin on the MnO2-c-MWCNTs modified glassy carbon electrode (MnO2-c-MWCNTs/ GCE) was investigated in detail by CV and chronocoulometry (CC). The electrochemical reaction mechanism of curcumin on the modified electrode was also discussed. In 0.1 M H2SO4 solution, the peak current showed a good linear dependence on curcumin concentration in the range of 0.01-1 mu M and 1-80 mu M, The method has high sensitivity (3.30 mu A mu M-1 cm( -1)), and the detection limit is 6.0 nM. At the same time, the MnO2-c-MWCNTs/GCE has good anti-interference ability and stability. In addition, the sensor was used for the accurate and rapid determination of curcumin in commercial food samples, which shows its good potential for practical application.
期刊:
Sensors and Actuators B-Chemical,2023年375:132900 ISSN:0925-4005
通讯作者:
Siping Tang<&wdkj&>Youyu Zhang
作者机构:
[Tang, Siping; Gu, Biao; Dai, Cong] Hengyang Normal Univ, Coll Chem & Mat Sci, Hunan Prov Engn Res Ctr Monitoring & Treatment Hea, Key Lab Organometall New Mat, Hengyang 421008, Peoples R China.;[Zhang, Youyu; Zhou, Zile] Hunan Normal Univ, Coll Chem & Chem Engn, Key Lab Chem Biol & Tradit Chinese Med Res, Minist Educ, Changsha 410081, Hunan, Peoples R China.
通讯机构:
[Siping Tang; Youyu Zhang] K;Key Laboratory of Organometallic New Materials, Key Laboratory of Chemical Sensing and Catalysis, Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River, College of Chemistry and Materials Science, Hengyang Normal University, Hengyang 421008, PR China<&wdkj&>Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha, Hunan 410081, PR China
关键词:
H2S and HClO;Multiple-site;Fluorescent probe;AIE-active;Imaging
摘要:
Endogenous H2S and HClO play vital roles in regulating the redox status in vivo, and are involved in many pathophysiological events. Accordingly, accurate sensing and imaging of intracellular H2S and HClO have become greatly in demand. However, conventional double-response fluorescent probes for these two substances suffered from the notorious aggregation-caused quenching effect and required multiple excitations to achieve discrimination determination. In this study, we firstly constructed an AIE-active fluorescent probe with three potential reaction sites for individual and continuous detection of H2S and HClO using a single excitation wavelength. The multiple-site probe exhibited distinctive fluorescence behaviors to H2S and HClO with fast response (H2S: 12 min; HClO: 1.8 min), well-separated emission peaks (88 nm), high sensitivity and good selectivity due to H2S-induced thiolysis of 2,4-dinitrophenyl ether assisted by an adjacent aldehyde and HClO-triggered sulfur oxidation. The corresponding recognition mechanisms were fully confirmed by HRMS, 1H NMR and control experiments. Moreover, the probe was successfully utilized for separate and continuous imaging of intracellular H2S and HClO in different fluorescent channels, indicating its potential for further study the biological functions of H2S and HClO in living systems.
期刊:
Molecular Crystals and Liquid Crystals,2023年764(1):103-114 ISSN:1542-1406
通讯作者:
Ya-Ping Ou
作者机构:
[Ou, Ya-Ping; Xia, Yonglin; Ye, Lingyun; Xu, Jingwen; Xiao, Wenbo; Luo, Yuanyang] Hengyang Normal Univ, Coll Chem & Mat Sci, Hunan Prov Key Lab Funct Met Organ Cpds, Hengyang, Hunan, Peoples R China.;[Ou, Ya-Ping; Xia, Yonglin; Ye, Lingyun; Xu, Jingwen; Xiao, Wenbo; Luo, Yuanyang] Hengyang Normal Univ, Coll Hunan Prov, Key Lab Organometall New Mat, Hengyang, Hunan, Peoples R China.;[Ou, Ya-Ping; Xia, Yonglin; Ye, Lingyun; Xu, Jingwen; Xiao, Wenbo; Luo, Yuanyang] Hunan Engn Res Ctr Monitoring & Treatment Heavy Me, Hengyang, Hunan, Peoples R China.;[Ou, Ya-Ping] Hengyang Normal Univ, Coll Chem & Mat Sci, Hunan Prov Key Lab Funct Met Organ Cpds, Hengyang 421008, Hunan, Peoples R China.
通讯机构:
[Ya-Ping Ou] C;College of Chemistry and Material Science, Hunan Provincial Key Laboratory of Functional Metal-Organic Compounds, Hengyang Normal University, Hengyang, Hunan, P. R. China<&wdkj&>Key Laboratory of Organometallic New Materials (Hengyang Normal University), College of Hunan Province, Hengyang, Hunan, P. R. China<&wdkj&>Hunan Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the upper Reaches of Xiangjiang River, Hengyang, Hunan, P. R. China
摘要:
Two athracene-bridged diarylamine isomers 1 and 2 were constructed and fully characterized. The electrochemical results showed that Delta E of compound 2 was significantly higher than that of 1, which indicated that the mixed-valence compound 2(+) had higher thermodynamic stability than 1(+). Spectroelectrochemistry reflected that the NIR absorption of 2(+) exhibited a significant blue shift compared with reported compound 1(+). The calculated electronic coupling constant and spin density distribution indicated that 2(+) had larger charge delocalization than 1(+) under the identical amine-amine distances. The TDDFT predicted beta-HOSO ->beta-LUSO transition from 2(+) which further confirmed the existence of N -> N center dot+ IVCT transition.
作者机构:
[Zhuang, Yongbing; Zhang, Yu; Wan, Yinhua; Dai, Junming] Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China.;[Zhuang, Yongbing; Zhang, Yu; Wan, Yinhua; Dai, Junming] Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China.;[Lai, Hua] Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Lee, Young Moo] Hanyang Univ, Coll Engn, Dept Energy Engn, Seoul 04763, South Korea.
通讯机构:
[Zhuang, YB ] C;Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China.;Univ Chinese Acad Sci, Sch Chem Engn, Beijing 100049, Peoples R China.
摘要:
The development of proton exchange membrane fuel cells(PEMFCs)that operate over a wide temperature range without additional humidificationsystems remains challenging. In this work, wide-temperature-rangeproton exchange membranes (PEMs) were constructed from novel Tro''ger'sbase (TB)-based intrinsically microporous copolyimides (co-PIs) finelyadjusted by incorporating crown ether units into chain backbones.Owing to the strong siphoning effect of existing microporosity andhydrogen bonds or the acid-base interactions of crown etherand TB units with phosphoric acid (PA) and/or H2O, thePA-doped co-PI membrane electrode assemblies (MEAs) can easily operatestably from 30 to 160 degrees C under H-2/air conditions evenwithout any external humidifiers. Regarding its single-cell performance, PI-TB-N30C achieved maximum power densities of 250 and 361mW cm(-2) at 80 and 160 degrees C, respectively, underanhydrous conditions. In addition, PA-doped co-PI MEA can accomplishlong-term stable operation under low or high temperatures for 120h. The structural architectures for PEMs based on finely adjustedmicroporous co-PIs extend beyond the current capabilities of existingPEMFCs.
摘要:
Benzimidazoles (BZDs) are widely applied and easily accumulated through the food chain and endanger human health. Effective sample pre-treatment technology is the key procedure for trace BZDs analysis. Herein, magnetic covalent organic frameworks (Fe3O4@TRITER) nanospheres, as magnetic solid-phase extraction (MSPE) adsorbent, were synthesized and well characterized. The efficient extraction of BZDs residues depended on large specific surface of COFs and pi-pi and hydrophobic interactions between TRITER shell and BZDs. Under the optimal MSPE conditions, the developed MSPE-HPLC based on Fe3O4@TRITER method for BZDs residues afforded good linearities (0.01-1 mu g mL-1) with R2 (>= 0.996) and low limit of detections (3 ng mL-1). The developed Fe3O4@TRITER based MSPE-HPLC method was evaluated and successfully applied to determine BZDs residues in orange juice, mixed juice drink and cucumber with satisfactory recoveries (76.9-117 %) and relative standard deviations (0.10-7.90 %).
摘要:
Five diorganotin complexes were synthesized through the reactions involving benzoyl hydrazine, sodium phenylpyruvate, and the respective dialkyltin compounds. All complexes underwent comprehensive characterization employing various techniques, including infrared spectroscopy, nuclear magnetic resonance spectroscopy (1H, 13C, 119Sn), high-resolution mass spectrometry, elemental analysis, X-ray single crystal diffraction, and thermogravimetric analysis. The structural analysis revealed that the ligands in the complexes adopted a tridentate chelating mode. In order to assess their potential as antitumor agents, the complexes were subjected to an in vitro evaluation using the Cell Counting Kit-8 assay. The results indicated that C2 exhibited enhanced efficacy, suggesting its suitability for further chemical optimization and potential application in cancer therapy. Molecular docking was employed to predict the binding mode between complex and DNA. To gain insights into the interaction between C2 and DNA a series of experiments, including viscosity experiments, ultraviolet-visible spectrophotometry, fluorescence spectroscopy, and gel electrophoresis were conducted. The findings consistently demonstrated that C2 interacted with DNA via intercalation.
作者机构:
[Sun, Junbin; Lu, Weihong; Li, Chenguang; Qi, Xiang; Sun, JB; Huang, Ling; Song, Chenxi; Li, Lizhen; Lu, WH] Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Sun, Junbin; Lu, Weihong] Hengyang Normal Univ, Hunan Prov Key Lab Funct Met Organ Cpds, Hengyang 421008, Peoples R China.;[Sun, Junbin; Lu, Weihong] Hengyang Normal Univ, Coll Hunan Prov, Key Lab Organomet New Mat, Hengyang 421008, Peoples R China.;[Sun, Junbin] Hengyang Normal Univ, Hunan Engn Res Ctr Monitoring & Treatment Heavy Me, Hengyang 421008, Peoples R China.
通讯机构:
[Sun, JB; Lu, WH ] H;Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.
关键词:
CMAS corrosion;GdPO4
摘要:
CaO-MgO-Al2O3-SiO2 (CMAS) corrosion poses serious hidden dangers for the application of thermal barrier coatings (TBCs). In this study, LaMgAl11O19 (LMA) and GdPO4 were mixed at molar ratios of 2:1, 1:1 and 1:2 to prepare LMA/GdPO4 materials, and the CMAS corrosion behaviours of these materials were investigated at 1300 & DEG;C-1500 & DEG;C for 20 h and 40 h. It was demonstrated that temperature was the main factor influencing the corrosion behaviours and products. The materials were damaged at 1300 & DEG;C by the crystallization of CMAS melts to form CaAl2Si2O8. In contrast, the materials were corroded by CMAS melts via the reaction between CMAS and GdPO4 at 1500 & DEG;C. These results indicate that the addition of GdPO4 to LMA can improve the resistance of the LMA material to CMAS corrosion.
通讯机构:
[Wang, C ; Li, WY] H;Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421000, Peoples R China.;Tianjin Normal Univ, Tianjin Key Lab Struct & Performance Funct Mol, Coll Chem, Tianjin 300387, Peoples R China.
摘要:
A NiH-catalyzed migratory and non-migratory gem-difluoroallylation reaction of alkenyl amines with trifluoromethyl alkenes has been developed by judicious choice of directing groups. The reaction incorporates gem-difluoroalkene motifs into aliphatic amine derivatives at multiple positions with high levels of chemo- and regioselectivity. This practical protocol features wide substrate scope, great functional group tolerance, and easy removal of the directing groups. Notably, products from these reactions possess versatile chemical reactivity because of the secondary amide and difluoroalkene functionalities, thus building a platform for synthesizing new linear and cyclic fluoro-containing amines, which would benefit drug discovery.
摘要:
Six aroylhydrazone di-m-chlorobenzyltin complexes {[X-C(6)H(4)(O)C=N-N=C(Me)COO](MeOH)(m-Cl-C(6)H(4)CH(2))(2)Sn}(2) (X = p-Me- (1), p-MeO- (2), p-t-Bu- (3), p-NO(2)- (4), p-OH- (5) or o-OH- (6)) were synthesized and characterized by HRMS (high-resolution mass spectrometry), NMR (nuclear magnetic resonance spectroscopy), IR (Fourier transform infrared spectroscopy), and TGA (thermogravimetric analysis) techniques. The molecular structure of complexes 1-6 was confirmed by single-crystal X-ray crystallography. The structure of complexes showed a distorted pentagonal bipyramidal configuration around the tin atom center, and the ligands adopted a tridentate chelating mode. Fascinatingly, either one-dimensional infinite chain structures or two-dimensional network structures were observed in the complexes through hydrogen bonds. Complex 2 has the strongest inhibitory effect on MCF7 and HepG2 cell proliferation, its effect was superior to that of the positive control drug cisplatin. The interaction of ct-DNA (calf-thymus DNA) with complex 2 was explored using UV absorption (ultraviolet absorption) and fluorescence spectroscopy. Complex 2 exhibited a moderate affinity for ct-DNA through intercalation modes. The interaction of complex 2 with ct-DNA has also been supported by molecular docking studies.
期刊:
Environmental Science and Pollution Research,2023年30(47):104505-104519 ISSN:0944-1344
通讯作者:
Liu, J
作者机构:
[Liu, Jian; Zhao, Yi; Yi, Zhengji; Xu, Yue] Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;[Liu, Jian; Yi, Zhengji] Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;[Liu, Jian; Yi, Zhengji] Hunan Engn Res Ctr Monitoring & Treatment Heavy M, Hengyang 421008, Peoples R China.
通讯机构:
[Liu, J ] H;Hengyang Normal Univ, Coll Chem & Mat Sci, Hengyang 421008, Peoples R China.;Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.;Hunan Engn Res Ctr Monitoring & Treatment Heavy M, Hengyang 421008, Peoples R China.
摘要:
Six novel coordination polymers (CPs) based on a rigid tridentate ligand, 4 & PRIME;-(4-(imidazol-1-yl)phenyl)-4,2 & PRIME;:6 & PRIME;,4 & PRIME;'-terpyridine (imphtpy), namely {[Zn2(imphtpy)2(p-bdc)2].(H2O)}n (1), [Zn(imphtpy)(m-bdc)]n (2), {[Zn (imphtpy)(qda)1.5].(H2O)}n (3), [Cd2(imphtpy)2(m-bdc)2]n (4), [Cd(imphtpy)(abtc)0.5]n (5) and [Cd(imphtpy) (qda)]n (6), (p-H2bdc = 1,4-benzenedicarboxylic acid, m-H2bdc = 1,3-benzenedicarboxylic acid, H2qda = hy-droquinone-o,o'-diacetic acid and H4abtc = 3,3 & PRIME;,5,5 & PRIME;-azobenzenetetracarboxylic acid), have been solvothermally synthesized and characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction (PXRD), ther-mogravimetric (TG) analysis and single-crystal X-ray diffraction. Complex 1 displays a pseudo four-fold inter-penetration of dia network in a [2 + 2] mode. Complex 2 exhibits a 2D-* 2D polycatenane of two-fold interpenetrated network with the sql topology. Complex 3 shows a interdigitated 2D layer with the sql topol-ogy, which is further extended into a 3D supramolecular framework through 7L-7L interactions and hydrogen bonds. Complex 4 features a two-fold interpenetrated (4,4)-connected 3D + 3D-* 3D framework with the bbf topology. Complex 5 reveals a 2D network constructed by binuclear Cd2(CO2)4 secondary building unit (SBU) with the sql topology which is further packed into a 3D supramolecular framework through 7L-7L interactions. Complex 6 is a 3D network constructed by binuclear Cd2(CO2)2O2 SBU with the uninodal 6-c pcu topology. These results indicate that the versatile coordination networks of imphtpy and various polycarboxylate ligands play crucial roles in modulating the structural topologies of coordination networks. In addtion, photo-luminescence properties have been explored for complexes 1-6 in the solid state at room temperature, which are derived from metal perturbed intraligand charge transfer (ICT) or ligand-to-ligand charge transfer.
作者:
Yang Ting-Ying;Guo Dan;Hu Yu-Qiong;Yi Si-Jia;Gu Shu-Qi;...
期刊:
无机化学学报,2023年39(1):117-126 ISSN:1001-4861
作者机构:
[Hu Yu-Qiong; He Xia; Yang Ting-Ying; Yi Si-Jia; Gu Shu-Qi; Zhang Fu-Xing; Guo Dan; Zhu Xiao-Ming] Hengyang Normal Univ, Coll Chem & Mat Sci,Key Lab Organometall New Mat, Coll Hunan Prov,Key Lab Funct Met Organ Cpds Huna, Hunan Engn Res Ctr Monitoring & Treatment Heavy M, Hengyang 421008, Hunan, Peoples R China.
期刊:
Journal of Energy Storage,2023年58:106338 ISSN:2352-152X
通讯作者:
Chunming Yang<&wdkj&>Dong Qian
作者机构:
[Ren, Jun; Liang, Yun; Wang, Qing; Yang, Chunming; Xiang, Qian] Hunan Normal Univ, Coll Chem & Chem Engn, Natl & Local Joint Engn Lab New Petro Chem Mat & F, Changsha 410081, Peoples R China.;[Ren, Jun; Liang, Yun; Wang, Qing; Yang, Chunming; Xiang, Qian] Hunan Normal Univ, Coll Chem & Chem Engn, Key Lab Chem Biol & Tradit Chinese Med Res, Minist Educ China, Changsha 410081, Peoples R China.;[Liu, Jinlong; Qian, Dong] Cent South Univ, Coll Chem & Chem Engn, Hunan Prov Key Lab Chem Power Resources, Changsha 410083, Peoples R China.;[Li, Junhua] Hengyang Normal Univ, Coll Chem & Mat Sci, Key Lab Funct Met Organ Cpds Hunan Prov, Hengyang 421008, Peoples R China.
通讯机构:
[Chunming Yang] N;[Dong Qian] H;National and Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources & Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education of China), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, PR China<&wdkj&>Hunan Provincial Key Laboratory of Chemical Power Resources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, PR China
关键词:
Ni(pyrithione)(2);FeNiCo oxides;FeNi foam;High voltage window;Symmetrical supercapacitors
摘要:
The low decomposition voltage (similar to 1.23 V) of water enormously restricts the workable voltage of aqueous symmetrical supercapacitors (SSCs), which correspondingly limits the energy densities and frustrates the commercialization of aqueous SSCs. Herein, the voltage window of an all-solid-state symmetrical supercapacitors (ASSC) can be extended via employing a novel self-supporting hybrid electrode constructed by coupling FeNiCo oxides with Ni(pyrithione)(2) on FeNi foam (denoted as NiPT@FeNiCo oxides/FNF) as both cathode and anode, which was synthesized using two-step hydrothermal processes. Primarily due to the introduction of redox-active pyrithione ligand chelating Ni ions supplemented by multiple pairs of reversible redox reactions to suppress water splitting, the assembled ASSC device exhibits an extra-wide workable voltage window up to 3.2 V with ultrahigh energy exporting densities (69.9 Wh kg(-1) at 173.9 W kg(-1), and 29.1 Wh kg(-1) even at an elevated 2437.6 W kg(-1)). The energy density feature of this assembled ASSC device is superior to most existing transition metal oxide-based supercapacitors and even asymmetric or hybrid devices heretofore reported. After 10,000 cycles, this assembled ASSC device records a 92.5 % retention of initial area specific capacity. Our work offers a robust combination strategy to design high-potential electrode materials for constructing high-voltage ASSCs.
期刊:
Zeitschrift fur Kristallographie - New Crystal Structures,2023年238(6):1047-1050 ISSN:1433-7266
通讯作者:
Fu, WW
作者机构:
[Xiao, Liang; He, Liqiong; Fu, Weiwei] Hengyang Normal Univ, Coll Chem & Mat Sci, Hunan Prov Engn Res Ctr Monitoring & Treatment Hea, Coll Hunan Prov,Key Lab Funct Met Organ Cpds Hunan, Hengyang 421008, Hunan, Peoples R China.
通讯机构:
[Fu, WW ] H;Hengyang Normal Univ, Coll Chem & Mat Sci, Hunan Prov Engn Res Ctr Monitoring & Treatment Hea, Coll Hunan Prov,Key Lab Funct Met Organ Cpds Hunan, Hengyang 421008, Hunan, Peoples R China.
摘要:
C58H42CdN10O6, triclinic, P (1) over bar (no. 2), a = 9.689(3) angstrom, b = 10.930(3) angstrom, c = 23.321(6) angstrom, a = 80.838(5)degrees, beta = 84.261(5)degrees, gamma = 79.189(5)degrees, V = 2388.7(12) angstrom(3), Z = 2, R-gt(F) = 0.0592, wR(ref)(F-2) = 0.1561, T = 293 K.
期刊:
Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy,2023年300:122951 ISSN:1386-1425
通讯作者:
Gu, B
作者机构:
[Zhang, Keyang; Dai, Cong; Gu, Biao; Tang, Can; Zhao, Jingjun; Li, Xinyu; Gu, B] Hengyang Normal Univ, Coll Chem & Mat Sci, Hunan Prov Engn Res Ctr Monitoring & Treatment Hea, Key Lab Organomet New Mat, Hengyang 421008, Peoples R China.
通讯机构:
[Gu, B ] H;Hengyang Normal Univ, Coll Chem & Mat Sci, Hunan Prov Engn Res Ctr Monitoring & Treatment Hea, Key Lab Organomet New Mat, Hengyang 421008, Peoples R China.
关键词:
AIE;Bioimaging;Continuous detection;Cu(2+) and H(2)S;Fluorescent sensor
摘要:
The development of effective methods for tracking Cu(2+) and H(2)S in living organisms is urgently required due to their vital function in a variety of pathophysiological processes. In this work, a new fluorescent sensor BDF with excited-state intramolecular proton transfer (ESIPT) and aggregation-induced emission (AIE) features for the successive detection of Cu(2+) and H(2)S was constructed by introducing 3,5-bis(trifluoromethyl)phenylacetonitrile into the benzothiazole skeleton. BDF showed a fast, selective and sensitive fluorescence "turn off" response to Cu(2+) in physiological media, and the situ-formed complex can serve as a fluorescence "turn on" sensor for highly selective detection of H(2)S through the Cu(2+) displacement approach. In addition, the detection limits of BDF for Cu(2+) and H(2)S were determined to be 0.05 and 1.95μM, respectively. Encouraged by its favourable features, including strong red fluorescence from the AIE effect, large Stokes shift (285nm), high anti-interference ability and good function at physiological pH as well as a low toxicity, BDF was successfully applied for the consequent imaging of Cu(2+) and H(2)S in both living cells and zebrafish, making it an ideal candidate for detecting and imaging of Cu(2+) and H(2)S in live systems.