Journal of Food Measurement and Characterization
·
2024
·
IF 2.9
Pang Wanyu,Gao Yali,Chang Xile,Hu Tuoping,Hu Zhiyong,Ma Xuemei
An electrochemical sensing platform based on in-situ acetylene black (AB) template growth ZIF-8 for trace catechin detection in green tea was proposed. Here, the ZIF-8/AB/carbon paper (CP) electrode was constructed by two-step in-situ growth method and hydrothermal method. The characterization showed that AB molecule was well distributed in ZIF-8 pore with large surface area. ZIF-8/AB/CP electrode showed good electrochemical performance for catechin detection, which benefited from the ZIF-8 with larger surface and AB with excellent conductivity. The results showed that ZIF-8/AB/CP electrode was linear in the range of 0.01–200 µM, and the low detection limit for catechin detection was 43.7 nM. ZIF-8/AB/CP also had good reproducibility, anti-interference ability and stability. In addition, the sensor achieved hight-recovery and accuracy in detecting catechin in green tea. As far as we know, our work first reported that ZIF-8/AB composite was synthesized by in-situ growth method as an electrochemical sensing material for the detection of catechin in green tea, which will provide some theoretical analysis and experimental experience for designing and developing electrochemical sensor for the analysis of trace catechin.
研究领域:
分析化学
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材料科学
·
食品科学
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产品关联
DOI
高影响因子
RSC Advances
·
2018
·Vol. 8
·期 57
·32740-32746
·
IF 2.936
Ya-feng Jin,Chuang-ye Ge,Xiao-bo Li,Miao Zhang,Guang-ri Xu,Dong-hao Li
Herein, we fabricated a sensitive rutin electrochemical sensor via modifying glassy carbon electrode (GCE) with zeolitic imidazolate framework-8 (ZIF-8) and acetylene black (AB) in the presence of chitosan (CS). The electrochemical activity and experimental parameters of the ZIF-8-AB-CS/GCE sensor were investigated by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). Under the optimal conditions, the sensor presented a reasonable linear response in the range of 0.1–10 μM with a limit of detection (LOD) as low as 0.004 μM (S/N = 3). The sensor possessed good reproducibility and high stability, and was successfully applied to detect rutin tablet samples with satisfactory results, which was attributed to the synergistic effect between ZIF-8 and AB. Meanwhile, the sensor displayed a potential application for detection of other analytes in real samples. Furthermore, a probable interaction mechanism was proposed to account for the interaction between rutin and the nanocomposite electrode, which was not discussed in previous reports.
研究领域:
分析化学
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材料科学
·
药物分析
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产品关联
DOI
PubMed
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Jing-yi Jiang,Qingyi Li,Wen-chang Wang,Xiao-hui Chen,Zhi-dong Chen
A novel, rapid, and facile electrochemiluminescence sensor which based on carboxylated acetylene black / Ru(bpy) 3 2+ / nafion modified glass carbon electrode (CAB/Ru(bpy) 3 2+ /NAF/GCE) was developed for detecting isoniazid (INH). The CAB/Ru(bpy) 3 2+ /NAF/GCE expresses an efficient electrochemiluminescence response for INH, because of the brilliant luminous efficiency of Ru(bpy)32+ and admirable electronic transmission of acetylene black. The electrochemiluminescence intensity was quenched significantly with addition of INH. Under the optimal conditions, the sensor for the detection of isoniazid exhibits a wide linear range of 1.0 × 10 -6 ~ 1.0 × 10 -3 mol·L -1 with the detection limit of 5.0 × 10 -7 mol·L -1 . The sensor is expected to be a simple and convenient method for the determination of INH in pharmaceutical samples .
研究领域:
分析化学
·
药物分析
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产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2024
·
IF 6.3
Yanhua Lei,Haifeng Lan,Bochen Jiang,Yuan Yuan,Dmitry A. Vorontsov,Guanhui Gao,Yuliang Zhang,Qing Chen
Current advancements in anti-icing coatings emphasize the integration of photothermal, electrothermal, and superhydrophobic features to significantly enhance de-icing efficiency. However, these multifaceted coatings often involve intricate preparation methods and costly materials, making them susceptible to damage and reduced durability. This research aims to overcome these challenges by combining active and passive anti-icing principles to achieve full-time efficient anti-icing. A novel strategy is devised to modify the wettability of epoxy resins by grafting a fluorinated oligomer using a curing agent bridging technique. By utilizing micron-sized Titanium Nitride (TiN) and nanosized Acetylene Black fillers within a fluorine-modified epoxy resin, applied through a simple spray technique, the resulting coating exhibits excellent photothermal, electrothermal, and superhydrophobic properties. Evaluations confirm the coating’s robust mechanical durability for extended operational use and its stabilized effectiveness in photothermal and electrothermal de-icing. Notably, this approach maintains electrical conductivity by eliminating the filler hydrophobic modification, also enhancing the mechanical performance of nanocarbon-based multifunctional anti-icing coatings. Moreover, it simplifies the manufacturing process, reduces cost of coating materials, and enables broad application across various substrate surfaces.
研究领域:
材料科学
·
表面工程
·
涂层技术
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DOI
高影响因子
International Journal of Electrochemical Science
·
2023
·
IF 1.5
Runqiang Liu,Xuli Hu,Yuanhang Cao,Haotian Pang,Wenlei Hou,Yansheng Shi,Haoming Li,Xinming Yin,Hongyuan Zhao
The unreasonable use of isoproturon (ISO) had caused severe damage to human health and the ecological environment. Herein, an ultrasound-assisted strategy was proposed to construct a novel electrochemical sensor based on acetylene black (AB) nanoparticles for the sensitive determination of ISO. The morphological characterization of AB was investigated by scanning electron microscope (SEM), transmission electron microscopy (TEM), and X-ray diffraction (XRD). AB with pearl-chain-like carbon network exhibited outstanding electrical conductivity and prominent dispersion ability, which could significantly improve the electrochemical detection performance of ISO. The linear range of detecting ISO was 0.5-20 μM with the detection limit of 0.096 μM at the fabricated AB/GCE sensor. Moreover, the fabricated sensor demonstrated good stability, repeatability, and selectivity. The AB/GCE sensor presented acceptable recoveries of 98.21%-102.70% in measuring ISO in tomato and water samples. This work lays an essential foundation for using AB nanoparticles to develop high-performance ISO sensor.
研究领域:
环境科学
·
分析化学
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产品关联
DOI
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2023
·
IF 8.6
Jia Zhao,Heng Zhang,Yang Shi,Jianhua Guo,Mengfan Luo,Peng Zhou,Yang Liu,Chuanshu He,Zhaokun Xiong,Gang Yao,Bo Lai
carbonaceous materials (CMs) have attracted broad concern as catalysts in wastewater remediation due to their excellent physicochemical and structural properties. Here, the decontamination ability of ferrate (Fe(VI)) was evaluated in the presence of various CMs and Fe(IV)/Fe(V) was determined as predominant species. Acetylene black (AB), a kind of carbon black widely used in the modification of electrode materials, showed the best activation effect on Fe(VI) decontamination. Ozone pre-oxidation combined with characterization analyses revealed the critical role of ketonic (C O) groups on AB as reductive sites. The promoting effect of Fe(III) and H 2 O 2 indicated the involvement of Fe(VI) decay products in the activation process. Additionally, the decontamination efficiency above 90% in cyclic tests and actual waters reflected the advantages of nonradical oxidation in the heterogeneous Fe(VI)−AB system, indicating its great potential in practical application for wastewater remediation.
研究领域:
环境科学
·
材料科学
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产品关联
DOI
高影响因子
ELECTROCHIMICA ACTA
·
2014
·
IF 4.086
Juan Xu,Xicheng Wei,Jianyu Cao,Yuanzhu Dong,Guoxin Wang,Yufei Xue,Wenchang Wang,Zhidong Chen
Graphene/acetylene black sandwich film was fabricated by a simple vacuum filtration procedure using a stable complex suspension of graphene oxide (GO) and acetylene black followed by a hydroiodic acid (HI) immersion process to fully reduce the GO to graphene sheets. The self-restacking of individual graphene sheets were greatly alleviated and electric conductivity was obviously improved using the acetylene black nanoparticles as both effective spacers to expand the inter-layer interval of the individual graphene sheets during the film assembly course and highly conducting bridges to facilitate the electron/ion transfer between the upper and lower graphene sheets. The flexible graphene/acetylene black film was utilized as supercapacitor electrode without additional conductive additives, binders and current collectors, which achieved an obviously higher specific capacitance (ca. 136.6 F g −1 at 0.5 A g −1 ) and much better specific capacitance retention at high current densities than that of the pure graphene film electrode, indicating that such a novel sandwich film structure allows for a higher charge storage capability. More importantly, the assembled symmetric supercapacitor device displayed a satisfactory specific capacitance of 59.2 F g −1 at 0.1 A g −1 , 47.6 F g −1 at 0.5 A g −1 and 42.8 F g −1 at 1 A g −1 , and only negligible 4.05% capacitance degradation have been found after 1000 continuous charge-discharge cycles at 0.5 A g −1 , revealing outstanding rate capability, excellent electrochemical reversibility and long-term cyclability. These results proved that such a flexible and highly conductive graphene/acetylene black film can be promising electroactive materials in the development of advanced electrochemical energy storage devices.
研究领域:
材料科学
·
电化学
✓ 已验证
DOI
高影响因子
Journal of Energy Storage
·
2024
·
IF 8.9
Zhangfeng Wu,Qili Sun,Xusong Huang,Mengxiang Zeng,Yicheng Wu,Haiyan Fu
Due to the requirement for wearability and the limitation of flexibility, as well as the lack of materials with both conductive, flexible, and energy storage functions, the structure of flexible supercapacitors is often presented in a two-dimensional plane form. Consequently, the thickness is limited, resulting in low capacity. In order to address this issue, a new approach has been attempted here. By utilizing 1 mm flexible carbon fiber felt as a conductive framework and mechanical support, a certain amount of acetylene black and activated carbon are filled and cured to fully leverage the characteristics of carbon fiber felt for significantly enhancing capacity while meeting performance requirements for flexible supercapacitors. The resulting flexible supercapacitor exhibits high strength, large capacity (1.5Fcm −2 ), good responsiveness, as well as excellent flexibility and magnification performance. Additionally, by using the thickness of carbon fiber felt to increase the thickness of the supercapacitor and changing its shape from the sheet to block accordingly allows for corresponding increases in capacitance and volume. This transformation seems to demonstrate that carbon fiber felt may serve as a framework bridging conventional supercapacitors with flexible ones while transitioning from planar structures to three-dimensional ones.
研究领域:
材料科学
·
能源存储
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2021
·
IF 4.821
Peihong Deng,Jingyun Xiao,Jinxia Feng,Yaling Tian,Yiyong Wu,Junhua Li,Quanguo He
In recent years, small-sized electrodes have drawn widespread attraction in electroanalysis due to high sensitivity, rapid response and low cost. Hereby, a sub-millimeter paste electrode with inner diameter of 0.8 mm was prepared by combining the excellent properties of reduced graphene oxide (rGO) and acetylene black (AB), and the electrochemical behavior of tyrosine (Tyr) on the modified electrode (denoted as rGO/ABPE) was investigated in detail. The electrochemical responses obtained on the sub-millimeter rGO/ABPE were compared with that obtained on a conventional size electrode with diameter of 3 mm. The results showed that the 0.8 mm one has better performance than that of 3 mm. Compared with the paste electrode made of graphite powder, the oxidation peak current of Tyr increased significantly due to the synergistic effect of rGO and AB. Under the optimized experimental conditions, the calibration curve of Tyr showed a linear relationship between 0.1 and 100 μM (R = 0.9995) with good sensitivity of 3.314 μA μM −1 cm −2 , and the detection limit was 0.06 μM. By comparison with conventional size electrode, the detection of Tyr on the sub-millimeter electrode shows higher sensitivity, wider linear range and lower detection limit. In addition, the excellent reproducibility, stability and selectivity of the sub-millimeter rGO/ABPE make it suitable for Tyr analysis in both food and biological samples.
研究领域:
分析化学
·
生物医学工程
·
食品科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2022
·
IF 8.943
Xiaoyu Fan,Xianjing Liu,Ying Wang
Developing low-cost, well-performing, and resource-efficient photocatalysts with enhanced solar light utilization can contribute to the practicability of photocatalytic techniques in organic wastewater treatment . This study fabricated and characterized a novel sunlight-driven BiOBr- and acetylene black (AB)-loaded monolithic photocatalyst. The fly ash-based geopolymer acts as photocatalyst support that can also provide adsorption sites and semiconductor metal oxide (Fe 2 O 3 ). A conductive network in the geopolymer structure formed by AB can promote the separation of e − -h + pairs generated by active sites (BiOBr and Fe 2 O 3 ). Moreover, the photothermal effect induced by AB can assist the photocatalytic reaction at the microinterface of the photocatalyst. This photocatalyst was suspended on the surface of an aqueous solution for sufficient contact with oxygen from the air and is thus beneficial for producing 1 O 2 and ·OH as the main active species. Within 30 min, it exhibited higher photothermal-photocatalytic activity with 96% removal efficiency of the target pollutant methylene blue (MB), which occurred at an initial concentration of 20 mg L −1 . The demethylation and hydroxylation process induced by the active species constituted the primary degradation pathway for MB by Bi/AB/MFGP. Overall, this study provides a valuable reference for developing economical, effective, and practical photocatalysts and applying geopolymers in photocatalysis .
研究领域:
环境科学
·
材料科学
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产品关联
DOI
PubMed
高影响因子
SENSORS
·
2016
·Vol. 16
·期 9
·1539
·
IF 2.033
Xiaoyun Wei,Qiang Zhao,Weixiang Wu,Tong Zhou,Shunli Jiang,Yeqing Tong,Qing Lu
A electrochemical sensor for the highly sensitive detection of tetrabromobisphenol A (TBBPA) was fabricated based on acetylene black paste electrode (ABPE) modified with 3-(N,N-Dimethylpalmitylammonio) propanesulfonate (SB3-16) in this study. The peak current of TBBPA was significantly enhanced at SB3-16/ABPE compared with unmodified electrodes. To further improve the electrochemical performance of the modified electrode, corresponding experimental parameters such as the length of hydrophobic chains of zwitterionic surfactant, the concentration of SB3-16, pH value, and accumulation time were examined. The peak currents of TBBPA were found to be linearly correlated with its concentrations in the range of 1 nM to 1 µM, with a detection limit of 0.4 nM. Besides, a possible mechanism was also discussed, and the hydrophobic interaction between TBBPA and the surfactants was suggested to take a leading role in enhancing the responses. Finally, this sensor was successfully employed to detect TBBPA in water samples.Keywords:tetrabromobisphenol A;acetylene black;zwitterionic surfactant;electrochemical determination
研究领域:
环境科学
·
分析化学
✓ 已验证
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2017
·Vol. 41
·期 12
·4959-4965
·
IF 3.269
Zongkun Chen,Fei Lin,Dandan He,Heqing Jiang,Jingjing Zhang,Xin Wang,Minghua Huang
The design of efficient and cheap electrocatalysts for the oxygen reduction reaction (ORR) plays a key role for renewable energy technologies such as fuel cells and metal–air batteries. Using a simple and effective route, electronically conductive acetylene black (AB) was deliberately introduced into Fe3O4/HCS-600 with enough ORR active sites to be used as an ORR catalyst. The good homogenization of the electron conductor AB and the high intimate contact of Fe3O4/HCS-600 and AB in the composite catalyst provide the possibility of facile electron accessibility. The resulting composite catalyst exhibited a high and stable electrocatalytic activity for the ORR, which is better than Fe3O4/HCS-600 or AB alone. These features may offer potential for the development of efficient ORR catalysts with low cost for alkaline fuel cells.
研究领域:
材料科学
·
能源技术
·
电化学
✓ 已验证
产品关联
DOI
高影响因子
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