Nanomaterials
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2024
·Vol. 14
·期 10
·896
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IF 4.4
Ching-Wen Lou,Meng-Meng Xie,Yan-Dong Yang,Hong-Yang Wang,Zhi-Ke Wang,Lu Zhang,Chien-Teng Hsieh,Li-Yan Liu,Mei-Chen Lin,Ting-Ting Li
In this study, a Ti3C2MXene@g-C3N4composite powder (TM-CN) was prepared by the ultrasonic self-assembly method and then loaded onto a carbon nanofiber membrane by the self-assembly properties of MXene for the treatment of organic pollutants in wastewater. The characterization of the TM-CN and the C-TM-CN was conducted via X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and Fourier transform infrared spectrometer (FTIR) to ascertain the successful modification. The organic dye degradation experiments demonstrated that introducing an appropriate amount of Ti3C2MXene resulted in the complete degradation of RhB within 60 min, three times the photocatalytic efficiency of a pure g-C3N4. The C-TM-CN exhibited the stable and outstanding photocatalytic degradation of the RhB solution over a wide range of pH values, indicating the characteristics of the photodegradation of organic pollutants in a wide range of aqueous environments. Furthermore, the results of the cyclic degradation experiments demonstrated that the C-TM-CN composite film maintained a degradation efficiency of over 85% after five cycles, thereby confirming a notable improvement in its cyclic stability. Consequently, the C-TM-CN composite film exhibits excellent photocatalytic performance and is readily recyclable, making it an auspicious eco-friendly material in water environment remediation.
研究领域:
环境科学
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材料科学
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化学工程
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产品关联
DOI
PubMed
高影响因子
CHEMICAL ENGINEERING JOURNAL
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2024
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IF 13.3
Yingkun Shi,Zijun Niu,Argenis Rodas-Gonzalez,Songlei Wang,Yihua Wang,Lingfan Yang
Guanosine 5′-monophosphate (GMP) is an ubiquitous compound in food and contributes significantly to food flavour due to its prominent umami properties. In this study, the development of MXene/g-C 3 N 4 /Au-COOH was synthesised by electrostatic self-assembly. The strong adsorption-catalysis ability of nanocomposites was utilised to attach the GMP to the surface of electrode. The surface morphology, functional groups and chemical bonds were analysed via several techniques, such as scanning electron microscopy (SEM), transmission electron microscopy (TEM), fourier transform infrared (FT-IR), and x-ray photoelectron spectroscopy (XPS). Under the optimised conditions, the GMP concentration detected by the sensor had a linear relationship in the range of 0.1–480 μM (S/N = 3) with a low detection limit of 0.0292 μM. Meanwhile, the MXene/g-C 3 N 4 /Au-COOH/GCE has good selectivity, reproducibility and stability. The applicability of the sensor in meat had been successfully verified by four actual samples (chicken broth, fish broth, pork and beef). This study presented a possible strategy to the field of evaluation of meat flavour.
研究领域:
食品科学
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材料科学
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分析化学
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产品关联
DOI
高影响因子
DIAMOND AND RELATED MATERIALS
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2024
·
IF 4.3
Baadal Jushi Janani,Safaa Mohammed Ibrahim,Asad Syed,Morug Salih Mahdi,Abdallah M. Elgorban,Haider Radhi Saud,Manjula Subramaniam,Ling Shing Wong,Ramadan Fallah Amer
In this study, we have designed a nanocomposites based on MXene/g-C 3 N 4 (MX/CN) loaded on Fe 2 WO 6 /BiIO 4 (FWO/BIO) for different applications. The nanocomposites were identified by using the structural and morphological studies including XRD , FESEM, EDS , DLS , TGA , BET, UV–vis, XPS techniques. The average sizes of BIO, FWO/BIO, and MX/CN/FWO/BIO were 44, 46, and 58 nm, respectively. The synthesized MX/CN/FWO/BIO nanocomposites was utilized for the peroxidase colorimetric identification of uranyl ions (UO 2 2+ ) with the excellent selectivity and sensitivity properties (LOD: 3.21 nM). The antifungal efficiency of the as-fabricated nanomaterials was investigated and the inhibition zone at high concentration 2.5 mg/mL of MX/CN/FWO/BIO nanocomposites were 19.74, 17.91, 24.25, and 21.32 mm against Aspergillus spp., Penicillum spp., Candida spp. and Fusarium spp., respectively. The MX/CN/FWO/BIO nanocomposites was utilized in photocatalysis process for decomposition of p-chlorophenol under visible light lamp. The findings showed that the MX/CN/FWO/BIO nanocomposites can be degrade p-chlorophenol (100.0 %) under visible light irradiation (80 min). The photocatalytic response was decreased about 2 % after 5th cycle times, and showed the best stability of the MX/CN/FWO/BIO nanocomposites. The quenching test shows the mechanism of p-chlorophenol degradation was conducted by •O 2 − , and •OH species. Additionally, the ecological structure activity relationships ECOSAR software was utilized to evaluate the toxicity of the p-chlorophenol and the intermediates produced. This work can lead for manufacturing innovation in near future.
研究领域:
材料科学
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环境科学
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生物医学工程
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化学
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产品关联
DOI
高影响因子
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
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2020
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IF 6.444
Qianfan Zhou,Kunpeng Qian,Jianhui Fang,Miao Miao,Shaomei Cao,Xin Feng
With the mushrooming of smart electronic devices, ultrathin Ti 3 C 2 T x MXene based EMI shielding materials with long term durability have aroused much interest. Herein, 2D Ti 3 C 2 T x /g-C 3 N 4 heterojunction films were firstly assembled using cellulose nanofibrils (CNF) as green binder via a solution-based pressured-filtration process. The heterojunction film with Ti 3 C 2 T x /g-C 3 N 4 mass ratio of 5:1 (28.20 µm in thick) exhibited distinguished performance with EMI shielding effectiveness of 42.99 dB in X-band and high tensile strength of 23.85 MPa. Specially, the generation of photo-electrons from g-C 3 N 4 nanosheets reduced TiO 2 into lower valence states under 365 nm UV light-irritation, resulting in lower loss on electrical conductivity as well as EMI shielding performance compared to their unilluminated counterparts. The reduction on TiO 2 offered by the g-C 3 N 4 enables the heterojunction film to be considered as a promising alternative EMI shielding material for future potential applications, because it can run long time just need UV light modulation.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
JOURNAL OF POWER SOURCES
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2024
·
IF 8.1
Haohuan Yuan,Wenting Xiao,Xin Zhang,Jiao Bao,Wei Li,Bo Huang,Guannan He
Efficient carrier separation and high electron migration efficiency are essential for sustainable H 2 energy production via photocatalysis . In this work, a Mn 0.5 Cd 0.5 S/Ti 3 C 2 MXene/g-C 3 N 4 all-solid-state Z-scheme photocatalyst is constructed by a series of processes, including low temperature calcination , etching, ultrasonication and solvothermal process. The appropriate energy band structures of g-C 3 N 4 and Mn 0.5 Cd 0.5 S enable the formation of the Z-scheme system, achieving efficient carrier separation. The Ti 3 C 2 MXene flakes assembled between g-C 3 N 4 nanosheets and Mn 0.5 Cd 0.5 S particles can accelerate the charge migration rate in the system. The optimized ternary composite exhibits the highest hydrogen evolution rate (HER) of 13.7 mmol g −1 h −1 , which is much higher than that of the pure g-C 3 N 4 and Mn 0.5 Cd 0.5 S. Meanwhile, the apparent quantum yield (AQY) value of the composite at 420 nm reaches up to 24.07 % and exhibits high stability. Based on the characterization, the photocatalytic mechanism of carrier transfer in the Z-scheme heterojunction is also revealed. The finding of this article provides insights into the high efficiency of carrier transfer and separation in the photocatalytic reactions.
研究领域:
材料科学
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能源化学
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光催化
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产品关联
DOI
高影响因子
RARE METALS
·
2024
·
IF 9.6
Wang Wei-Wei,Huang Rui,Tao Yu,He Peng,Tuo Su-Xing,Bian Yu-Jian,Hu Rui-Ting,Yan Jun,Liang Yan-Jie,Zhang Wen-Chao
The electrochemical utilization of Zn anodes in aqueous batteries is hampered by the intricate and interconnected issues of Zn dendrite growth, H 2 evolution and Zn corrosion reactions. In this study, a multifunctional protective layer comprising MXene and graphitic carbon nitride (g-C 3 N 4 ) was constructed using a self-assembly strategy. The MXene/g-C 3 N 4 protective layer exhibited robust zincophilic characteristics, which facilitated a uniform distribution of the electric field and ensured a sufficient influx of Zn 2+ . This reduces the Zn 2+ nucleation barrier and prevents dendrite growth. In addition, the hydrophobic nature of the protective layer, coupled with its negative charge, can repel SO 4 2− and select water molecules from the electrolyte, which aids in mitigating corrosion and H 2 evolution. The symmetric Zn cell coated with the MXene/g-C 3 N 4 protective layer showed remarkable stability, achieving over 2000 h of reversible cycling at 1 mA·cm −2 . Furthermore, the MXene/g-C 3 N 4 -coated Zn anode paired with a sodium-doped V 2 O 5 cathode (NVO) exhibited enhanced cycling capability over 1500 cycles. Graphical Abstract
研究领域:
材料科学
·
电化学
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能源存储
✓ 已验证
产品关联
DOI
高影响因子
RENEWABLE ENERGY
·
2025
·
IF 9.1
Xu Ma,Wei-Wei Yang,Jia-Rui Zhang,Lan-Xin Liang
In this study, g-C 3 N 4 /Ti 3 C 2 MXene composite fabricated through covalent assembly is used as support material for dynamically trapping Co 0.1 Ce 0.1 Ni 0.8 trimetallic alloy (TA), with the goal of facilitating efficient interfacial reactions and ordered energy conversion for dry reforming of methane by photothermal coupling. By synergistically harnessing remarkable photothermal conversion efficiency of Ti 3 C 2 MXene and the robust light absorption capacity of g-C 3 N 4 , the proposed composite catalyst demonstrates a notable enhancement in methane conversion. At 600 °C, a high and stable methane conversion of over 71 % can be achieved under the same conditions. Also, the generalized hydrogen production rates are remarkably higher than those for other existing studies in published literature for temperature ranging from 400 to 600 °C. Besides, the distinctive characteristics inherent in the dynamic photo-thermal-electric-chemical conversion process of methane reforming are uncovered, and herein, the concept of a tri-interface dual-transport operational mechanism is introduced. The present findings can constitute a valuable reference for the gentle and efficient operation of methane reforming processes, as well as the elaboration and optimization of photothermal catalytic systems.
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产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）