Catalysis Science & Technology
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2021
·Vol. 11
·期 23
·7683-7693
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IF 6.119
Jialiang Sheng,Chunqiang Wang,Fang Duan,Shengrong Yan,Shuanglong Lu,Han Zhu,Mingliang Du,Xin Chen,Mingqing Chen
The reasonable construction of Z-scheme heterojunctions is an effective pathway to enhance the photocatalytic performance. In this work, a direct Z-scheme cadmium sulfide–nickel phthalocyanine (CdS–NiPc) heterojunction was successfully constructed by a one-step solvothermal method, which exhibited highly efficient photocatalytic activity for hydrogen evolution and good cyclic stability under visible light irradiation. An optimal sample CdS–10%NiPc with 10 wt% NiPc was obtained, and the photocatalytic hydrogen production rate could reach 17.74 mmol h−1 g−1, which was 19.1 times higher than that of the pure CdS sample. The reasons for the improvement and the photocatalytic mechanism were studied in detail. The result indicated that the formation of a direct Z-scheme heterojunction made a close contact between CdS and NiPc, which effectively accelerated the separation and migration of charges. This study enriches the CdS-based composite photocatalysts for hydrogen evolution and provides a simple method for the construction of efficient Z-scheme inorganic–organic heterojunctions.
研究领域:
材料科学
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能源化学
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DOI
高影响因子
INORGANIC CHEMISTRY COMMUNICATIONS
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2025
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IF 5.4
Kaikai Xu,Lulu Kong,Kebin Ye,Beibei Xu,Yongming Deng,Yicheng Wang,Shaohua Wei
Phthalocyanine (Pc) is a promising class of metalloantibiotics with antibacterial properties, akin to many metalloantibiotics, that exerts its effect by disrupting the bacterial respiratory chain. Therefore, it is particularly crucial to develop simple and efficient antibacterial strategies to enhance the activity of antibiotics. The construction of metal–organic frameworks (MOFs) helps to improve the electron transfer ability of phthalocyanine antibacterial drugs and enhance their antibacterial activity. In this study, we report the synthesis of a two-dimensional (2D) NiPc-Cu MOF using a modified liquid–liquid interfacial method, offering a facile, scalable, and stable approach. The excellent electron transfer properties of the MOF significantly enhance the ability of NiPc to disrupt the respiratory chain, thereby boosting its antibacterial activity. Compared to NiPc alone, NiPc-Cu MOF demonstrated a 1000-fold reduction in the minimum inhibitory concentration (MIC 50 ) against Escherichia coli ( E. coli ), reaching 4 ng/mL—a level surpassing most reported metalloantibiotics and comparable to clinically used antibiotics. Furthermore, NiPc-Cu MOF selectively targets bacteria with minimal cytotoxicity to animal cells. Based on this, we have developed NiPc-Cu MOF as a safe antibacterial coating for catheters, characterized by excellent stability and superior antibacterial activity. This study provides a straightforward and effective strategy for enhancing the activity of molecular drugs that exert antibacterial effects by interfering with the respiratory chain.
研究领域:
微生物学
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药理学
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材料科学
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DOI
高影响因子
Journal of Environmental Chemical Engineering
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2024
·
IF 7.4
Shuna Jia,Zhijiang Dong,Zhiqiang Wang,Boxiong Shen,Honghong Lyu
Efficient catalytic reduction of the main greenhouse gas CO 2 into high value-added chemicals is an important measure to alleviate the greenhouse effect and energy depletion. Metal nitrogen (M-N 4 ) macrocyclic complexes have attracted increasing attention in the field of electrocatalytic CO 2 reduction (CO 2 RR) due to the precise adjustment of the catalytic active site according to the requirements and the flexible modification of the external ligand structure. Nevertheless, the poor activity and low selectivity of reduction products restrict their widespread application in electrocatalytic CO 2 RR. Herein, a combination of nanoscale and molecular level method has been developed to construct easily obtainable 4NH 2 -NiPc/NH 2 -CNT hybrid material, in which amino groups are connected to provide electrons toward the central Ni-N 4 site to promote the electrocatalytic CO 2 RR catalytic activity. As a result, the catalyst 4NH 2 -NiPc/NH 2 -CNT mainly produces CO in the electrocatalytic CO 2 RR, which exhibits a Faradaic efficiency of CO (FE CO ) higher than 92 % within a wide overpotential range of −0.70 to −0.95 V vs. RHE, and provides excellent stability with a current density of 12 mA cm −2 at −0.80 V vs. RHE. In addition, 4NH 2 -NiPc/NH 2 -CNT reaches its maximum FE CO value of 96 % at −0.8 V vs. RHE, which is approximately 3.1 times that of the original unmodified NiPc/CNT, demonstrating excellent promotion of electrochemical performance. Similarly, compared to NiPc/CNT without amino modification, the current density of 4NH 2 -NiPc/NH 2 -CNT exceeds it by more than twice. The research results indicate that promoting role of electron substituted amino groups in catalysis dispersion and electronic environment coordination. This study proposes a promising strategy of introducing amino groups into molecular catalysts and hybridizing with carbon nanotube to enhance the electrocatalytic conversion of CO 2 to deep reduction products.
研究领域:
催化化学
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材料科学
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环境科学
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DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
·
2025
·Vol. 172
·期 8
·087515
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IF 3.3
Yuelan Fang,Suxiang Feng,Xiaokun Li
Curcumin is extensively utilized across various domains including the food, pharmaceuticals, and chemical industries. However, excessive curcumin intake may induce tissue necrosis, thereby posing a substantial threat to human health, making rapid and precise detection of curcumin levels paramount. Here, tetranitro nickel phthalocyanine (NiPc) was synthesized via a solid-phase method. Subsequently, it underwent an azo condensation reaction with p-phenylenediamine (PPDA) under the assistance with potassium hydroxide. This process was used to fabricate a nickel phthalocyanine-based covalent organic framework material (PPDA-NiPc COF). Herein, NiPc serves as the acceptor unit (A) with high electron-accepting capability, while PPDA functions as the donor unit (D) to provide electrons. The D-A architecture established through imine bond formation, which significantly enhances photogenerated charge carrier separation and transfer. The photoelectrochemical sensor constructed based on two-dimensional COF exhibits remarkable sensitivity for curcumin detection. It demonstrates a favorable linear response within the concentration range of 0.05 to 50 μM, with a detection limit as low as 1.46 nM. Moreover, this detector possesses superior stability and reproducibility and enables accurate quantification curcumin in real samples. This study not only expands COF material applications in photoelectrochemical sensing but also provides a novel strategy for detecting curcumin.
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DOI
高影响因子
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
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2022
·Vol. 169
·期 8
·087511
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IF 4.386
Wensi Xu,Xiansen He,Xiaokun Li,Suxiang Feng
In this study, a novel electrochemical sensor was designed to detect luteolin (Lu) with the composite of gold nanoparticles and nickel phthalocyanine-based 2D conductive metal-organic frameworks (Au NPs@NiPc-Cu MOFs) for the first time. The NiPc-Cu MOFs exhibit excellent conductivity, large specific surface area, and porous structure, which can accelerate the mass transfer process of target molecules. To further improve the sensitivity of the sensing platform, Au NPs with outstanding conductivity were introduced to the surface of NiPc-Cu MOFs to prepare Au NPs@NiPc-Cu MOFs. The synergistic effect of NiPc-Cu MOFs and Au NPs endows the sensor with excellent electrocatalytic performance and outstanding sensitivity. Under optimal conditions, the electrochemical sensor has a wide linear range (0.1–40 μM). Moreover, the prepared sensor possesses good stability and anti-interference ability. This method does not require complicated sample pretreatment, simple operation, and short detection time, which can provide a new method for the rapid detection of Lu.
研究领域:
分析化学
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材料科学
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药学
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DOI
高影响因子
JOURNAL OF COLLOID AND INTERFACE SCIENCE
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2024
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IF 9.4
Linqi Cheng,Lan Chen,Jie Yu,Lina Zhao,Wanting Wang,Zexin Yang,Heng-guo Wang
Ion concentration and mobility are tightly associated with the ionic conductance of polymer electrolytes in solid-state lithium batteries. However, the anions involved in the movement are irrelevant to energy generation and cause uncontrolled dendritic growth and concentration polarization. In the current study, we proposed the strategy of using a bipolar organic molecule as the anion/cation-hosting cathode to expand the active charge carriers of polymer electrolytes. As a proof-of-concept demonstration of the novel strategy, a bipolar phthalocyanine derivative (2,3,9,10,16,17,23,24-octamethoxyphthalocyaninato) Ni(II) (NiPc-(OH) 8 ) that could successively store anions and cations was used as the cathode hosting material in quasi-solid-state dual-ion batteries (QSSDIBs). Interestingly, peripheral polyhydroxyl substituents could build a compatible interface with poly(vinylidene fluoride-hexafluoro propylene-based gel polymer electrolytes (PVDF-HFP). As expected, NiPc-(OH) 8 displays a high specific capacity of 248.2 mAh/g (at 50 mA g −1 ) and improved cyclic stability compared with that in liquid electrolyte. This study provides a solution to the issue of anion migration and could open another way to build high-performance QSSDIBs.
研究领域:
材料科学
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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
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