INORGANIC CHEMISTRY COMMUNICATIONS
·
2022
·
IF 3.428
Yanbing Yin,Yang Liu,Zhaosong Xin,Guopeng Xu,Yongming Feng,Bei Jiang,Xifeng He,Hongbo Zhang,Jie Ma
A new type aminophthalocyanine was synthesized and loaded on MOFs material UiO-66-NH 2 by impregnation method to synthesize a new type binary composite catalyst AmCoPc/UiO-66-NH 2 . It was systematically characterized by X-ray powder diffraction (XRD), Fourier transform infrared (FT-IR), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy (SEM) and N 2 adsorption desorption. The synthesized catalyst was applied to the photocatalytic degradation of methylene blue dye under visible light. Compared with AmCoPc or UiO-66-NH 2 monomer performance, the synthesized AmCoPc/UiO-66-NH 2 composite significantly enhanced the degradation of methylene blue (MB), the best degradation efficiency was 90.32%. The reason is that the synergistic effect of AmCoPc and UiO-66-NH 2 effectively improves the light utilization efficiency. The desirable properties such as the positive catalytic activity of the central ion and the high specific surface area of the composites accelerate charge transport and reduce charge recombination.
研究领域:
材料科学
·
环境科学
✓ 已验证
DOI
高影响因子
FOOD CONTROL
·
2021
·
IF 5.548
Yan-mei Shi,Li-qin Chao,Lin Mei,Zhi-hong Chen,Xiu-min Li,Ming-san Miao
Herein, a soluble tetramine phthalocyanine indium-decorated reduced graphene oxide (rGO-InTAPc) nanocomposite was prepared via non-covalent functionalization and used to construct a novel electrochemical sensor for sensitive determination of rutin in Tartary buckwheat tea. The rGO-InTAPc as an improved electrode material can significantly increase the electroactive surface area and electron transfer capacity. Moreover, the electrochemical response can be dramatically expanded by the enrichment effect of rutin through the adsorption of π-π stacking. Under optimized conditions, the rGO-InTAPc sensor displayed a linear dependence for rutin concentration ranging from 0.005 to 100 μM with a detection limit of 2.0 nM ( S/N = 3). The proposed sensor with excellent selectivity and reproducibility was quantitatively validated in commercially available Tartary buckwheat tea with rutin level ranging of 9.06–13.87 mg/g, which results were highly consistent with these of HPLC. This strategy of rutin detection will address a long-standing analytical challenge to establishing facile and sensitive methods for quality monitoring in tea drinks.
研究领域:
分析化学
·
食品科学
✓ 已验证
产品关联
DOI
高影响因子
BIOSENSORS & BIOELECTRONICS
·
2018
·
IF 8.173
Jinyun Peng,Qing Huang,Wenfeng Zhuge,Yuxia Liu,Cuizong Zhang,Wei Yang,Gang Xiang
In this study, we developed a novel photoelectrochemical (PEC) sensor for the highly sensitive detection of erythromycin by functionalising graphene oxide (GO) with nickel tetra-amined phthalocyanine (NiTAPc) through covalent bonding, which resulted in the formation of NiTAPc-Gr. The fabricated sensor showed a higher PEC efficiency under blue light, exhibiting a peak wavelength of 456 nm, as compared to that of the monomer . Further, the NiTAPc-Gr/indium tin oxide (ITO) sensor exhibited a photocurrent that was 50-fold higher than that for a GO/ITO sensor under the same conditions. Under optimal conditions, the NiTAPc-Gr PEC sensor showed a linear response for erythromycin concentrations ranging from 0.40 to 120.00 μmol L −1 , with the minimum limit for detection being 0.08 μmol L −1 . Thus, the NiTAPc-Gr sensor exhibited superior performance and excellent PEC characteristics, high stability, and good reproducibility with respect to the sensing of erythromycin. Moreover, it is convenient to use, fast, small, and cheap to produce. Hence, it should find wide use in the analysis of erythromycin in real-world applications.
研究领域:
分析化学
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生物医学工程
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产品关联
DOI
PubMed
高影响因子
IONICS
·
2019
·Vol. 25
·期 4
·1459-1469
·
IF 2.289
Zhang Ying,Wang Tingli,Zhang Ronglan,Yang Weixing,Luo Kai,Zhang Weiping,Zhao Jianshe
A series of metal 1, 8, 15, 22-tetraaminophthalocyanines [1, 8, 15, 22-TAPcM, M = Mn(II), Fe(II), Ni(II), Cu(II), Zn(II)] are synthesized and used to chemically modify fluorinated multi-walled carbon nanotubes (F-MWCNTs) with the formation of certain chemical bonds on the surface of carbon nanotubes, and the corresponding composites 1, 8, 15, 22-TAPcM/MWCNTs are obtained. The electrocatalytic activities of the samples are studied by adding them into lithium/thionyl chloride (Li/SOCl 2 ) batteries. The results indicate that the composites 1, 8, 15, 22-TAPcM/MWCNTs can improve the discharge voltage and lengthen the discharge time of the batteries much more than 1, 8, 15, 22-TAPcM, and the order of the electrocatalytic activities of 1, 8, 15, 22-TAPcM/MWCNTs and 1, 8, 15, 22-TAPcM with different metal ions in center is both Mn(II) > Ni(II) > Zn(II) > Fe(II) > Cu(II). It is also found that the discharge time and maximal discharge voltage and capacity for the battery contains 1, 8, 15, 22-TAPcMn/MWCNTs can be improved by 68.19%, 9.41%, and 82.6%, respectively.
研究领域:
材料科学
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
ACS Omega
·
2020
·
IF 2.87
Qing Huang,Yuxia Liu,Cuizhong Zhang,Zhenfa Zhang,Fengping Liu,Jinyun Peng
Owing to the importance of epinephrine as a neurotransmitter and hormone, sensitive methods are required for its detection. We have developed a sensitive photoelectrochemical (PEC) microsensor based on gold quantum dots (Au QDs) decorated on a nickel tetraminophthalocyanine–graphene oxide (NiTAPc-Gr) composite. NiTAPc was covalently attached to the surface of graphene oxide to prepare NiTAPc-Gr, which exhibits remarkable stability and PEC performance. In situ growth of Au QDs on the NiTAPc-Gr surface was achieved using chemical reduction at room temperature. The synthesized materials were characterized by Fourier transform infrared spectroscopy, ultraviolet–visible spectroscopy, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and electrochemical impedance spectroscopy. Au QDs@NiTAPc-Gr provided a much greater photocurrent than NiTAPc-Gr, making it suitable for the ultrasensitive PEC detection of epinephrine. The proposed PEC strategy exhibited a wide linear range of 0.12–243.9 nM with a low detection limit of 17.9 pM (S/N = 3). Additionally, the fabricated PEC sensor showed excellent sensitivity, remarkable stability, and good selectivity. This simple, fast, and low-cost strategy was successfully applied to the analysis of human serum samples, indicating the potential of this method for clinical detection applications.
研究领域:
生物医学工程
·
分析化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF MATERIALS SCIENCE
·
2022
·Vol. 57
·期 33
·16064-16079
·
IF 4.682
Zhang Yang,He Jiyu,Yang Rongjie
A series of novel tetraamino phthalocyanine zinc (TAPcZn) micro-crosslinked polyimide films were successfully synthesized by the copolymerization of 3,3′,4,4′-benzophenone tetracarboxylic dianhydride and 4,4′-oxydianiline. The UV–Vis, FTIR, NMR, MALDI-TOF-MS, and SEM–EDS technologies were used to demonstrate the synthesis of TAPcZn. The copolyimide films were mainly characterized via their morphologies, thermal stability, and mechanical properties. As expected, the copolyimide films inherited the optical properties of phthalocyanine compounds and showed good mechanical properties, excellent thermal stability, and flame retardancy with low content of TAPcZn (< 5.0 wt%), regularly. Smooth, uniform, and defect-free copolyimide films all showed good mechanical properties, and the tensile strength of PI with 1.52 wt% of TAPcZn reached 116.9 MPa, which is 19.7% higher than that of pure PI. In addition, as the amount of TAPcZn increases, both the residue char and the initial decomposition temperature of the copolymer film improved significantly, and the fire resistance of PI showed the same rules according to the limiting oxygen index and UL-94 tests. Amazingly, the obtained copolyimides are π -conjugate macrocycle homogeneous copolymers with excellent low dielectric properties. In particular, the 4.49 wt% TAPcZn/PI film showed an ultra-low dielectric constant of 2.326 (at 1 MHz) and a dielectric loss of less than 0.007. Therefore, the copolyimide films containing TAPcZn are highly prospective candidates as high-performance flexible substrates and dielectrics for electronics devices. Graphical Abstract
研究领域:
材料科学
·
高分子化学
·
电气工程
✓ 已验证
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2019
·
IF 6.393
Jinyun Peng,Qing Huang,Yuxia Liu,Pingfeng Liu,Cuizhong Zhang
A novel efficient photoelectrochemical (PEC) sensor was assembled for curcumin (Cur) detection using 2-mercaptoacetic acid (TGA)-capped CdTe nanoparticles and nickel tetra-amined phthalocyanine-linked graphene oxide (TGA-CdTe@NiTAPc-Gr). The TGA-CdTe nanoparticles could be firmly immobilized on the thin film structure of NiTAPc-Gr in a hydrogen-bonded manner, thus producing the proposed PEC sensor with a high photoelectrochemical activity of TGA-CdTe nanoparticles and excellent stability of NiTAPc-Gr. The TGA-CdTe@NiTAPc-Gr thin film showed a stronger blue light absorption property than the individual precursors, and this resulted in the sensitive detection of Cur ranging from 0.25–100 μM with a detection limit of 12.50 nM. In addition, the PEC sensor exhibited a high sensitivity and selectivity and quite good reproducibility. Thus, it shows potential for Cur detection in real samples.
研究领域:
分析化学
·
生物传感
·
纳米材料
·
光电化学
·
食品安全
✓ 已验证
DOI
高影响因子
Nature Sustainability
·
2021
·Vol. 4
·期 8
·725-730
·
IF 19.346
Wu Yueshen,Jiang Zhan,Lin Zhichao,Liang Yongye,Wang Hailiang
The electrochemical reduction of carbon dioxide is an appealing technology that stores renewable electricity in the chemical form and has the potential to transform the way carbon fuels are utilized today. While there have been successes in the electrosynthesis of alkanes, alkenes and alcohols, access to organonitrogen molecules such as alkylamines remains largely beyond the reach of current electrocatalysis. Here we report the first electrochemical reaction that converts carbon dioxide and nitrate to methylamine in aqueous media under ambient conditions catalysed by a cobalt β-tetraaminophthalocyanine molecular catalyst supported on carbon nanotubes. The overall reaction, involving the transfer of 14 electrons and 15 protons to form each methylamine molecule, is an eight-step catalytic cascade process enabled by the coupling of two reactive intermediates near the catalyst surface. The key C–N bond-forming step is found to be the spillover of hydroxylamine from nitrate reduction and its subsequent condensation with formaldehyde from carbon dioxide reduction. This study provides a successful example of sustainable alkylamine synthesis from inorganic carbon and nitrogen wastes, which could contribute to greenhouse gas mitigation for a carbon-neutral future.
研究领域:
电化学
·
催化
·
可再生能源
·
可持续化学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）