Facile preparation of in situ coated Ti3C2Tx/Ni0.5Zn0.5Fe2O4composites and their electromagnetic performance

Li, Youbing; Zhou, Xiaobing; Wang, Jing; Deng, Qihuang; Li, Mian; Du, Shiyu; Han, Yu; Lee, Jaehyung; Huang, Qing

doi:10.1039/c7ra03402d

Cited by 261 publications

(118 citation statements)

References 39 publications

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“…There is also a signal at 948 cm −1 coming from the C-F functional group, which was confirmed in our previous work [37]. In the spectrum of the Ti3C2TX MXene phase modified with 3 wt.% Y2O3/Al2O3, a wide band can be observed within the range of 3500-2900 cm −1 derived from the stretching vibrations of the hydroxyl groups -O-H [38,39], which are directly bound to titanium atoms on the surface of the MXene phases and come from the substrates used for the synthesis of Y2O3. The peaks at 3018 cm −1 and 1487 cm −1 come from C-H bonds, and 1653 cm −1 come from C = O bonds.…”

Section: Resultssupporting

confidence: 82%

Influence of Ti3C2Tx MXene and Surface-Modified Ti3C2Tx MXene Addition on Microstructure and Mechanical Properties of Silicon Carbide Composites Sintered via Spark Plasma Sintering Method

et al. 2021

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This article presents new findings related to the problem of the introduction of MXene phases into the silicon carbide matrix. The addition of MXene phases, as shown by the latest research, can significantly improve the mechanical properties of silicon carbide, including fracture toughness. Low fracture toughness is one of the main disadvantages that significantly limit its use. As a part of the experiment, two series of composites were produced with the addition of 2D-Ti3C2Tx MXene and 2D-Ti3C2Tx surface-modified MXene with the use of the sol-gel method with a mixture of Y2O3/Al2O3 oxides. The composites were obtained with the powder metallurgy technique and sintered with the Spark Plasma Sintering method at 1900 °C. The effect adding MXene phases had on the mechanical properties and microstructure of the produced sinters was investigated. Moreover, the influence of the performed surface modification on changes in the properties of the produced composites was determined. The analysis of the obtained results showed that during sintering, the MXene phases oxidize with the formation of carbon flakes playing the role of reinforcement. The influence of the Y2O3/Al2O3 layer on the structure of carbon flakes and the higher quality of the interface was also demonstrated. This was reflected in the higher mechanical properties of composites with the addition of modified Ti3C2Tx. Composites with 1 wt.% addition of Ti3C2Tx M are characterized with a fracture toughness of 5 MPa × m0.5, which is over 50% higher than in the case of the reference sample and over 15% higher than for the composite with 2.5 wt.% addition of Ti3C2Tx, which showed the highest fracture toughness in this series.

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Section: Resultssupporting

confidence: 82%

Influence of Ti3C2Tx MXene and Surface-Modified Ti3C2Tx MXene Addition on Microstructure and Mechanical Properties of Silicon Carbide Composites Sintered via Spark Plasma Sintering Method

et al. 2021

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“…Based on the spectra and presence of different functional groups, surface functionalization can be observed in our MXene sheets due to the presence of a distinct C]O band at 1734 cm À1 and C-F band at 1211 cm À1 . 48,49 The absence of these bonds in the spectrum of the MAX phase shows that the etched MXene may have C]O, C-F, and O-H surface terminations. 50 Tauc's plot was used to calculate the band gap of MAX and MXene using following equation:…”

Section: Resultsmentioning

confidence: 99%

Magnetic phase transition from paramagnetic in Nb₂AlC-MAX to superconductivity-like diamagnetic in Nb₂C-MXene: an experimental and computational analysis

et al. 2020

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“…In all of the specimens, these were assigned to the absorbed moisture from the environment and highly hydrogen-bonded OH or extremely strong coordinated H2O. Furthermore, a peak at 620 cm −1 was possibly due to the Ti-O bond deformation vibration [22]. As evident from the FTIR results, the characteristic C-O stretching (1000-1200 cm −1 ), similar to alcohol and ethers, C-H bending (1400-1500 cm −1 ), and C-H stretching (2850-3000 cm −1 ) peaks can be observed in the case of PEGylated and PPGylated MXenes.…”

Section: Discussionmentioning

confidence: 94%

A Comparative Study of Cytotoxicity of PPG and PEG Surface-Modified 2-D Ti3C2 MXene Flakes on Human Cancer Cells and Their Photothermal Response

et al. 2021

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The MXenes are a novel family of 2-D materials with promising biomedical activity, however, their anticancer potential is still largely unexplored. In this study, a comparative cytotoxicity investigation of Ti3C2 MXenes with polypropylene glycol (PPG), and polyethylene glycol (PEG) surface-modified 2-D Ti3C2 MXene flakes has been conducted towards normal and cancerous human cell lines. The wet chemical etching method was used to synthesize MXene followed by a simple chemical mixing method for surface modification of Ti3C2 MXene with PPG and PEG molecules. SEM and XRD analyses were performed to examine surface morphology and elemental composition, respectively. FTIR and UV-vis spectroscopy were used to confirm surface modification and light absorption, respectively. The cell lines used to study the cytotoxicity of MXene and surface-modified MXenes in this study were normal (HaCaT and MCF-10A) and cancerous (MCF-7 and A375) cells. These cell lines were also used as controls (without exposure to study material and irradiation) to measure their baseline cell viability under the same lab environment. The surface-modified MXenes exhibited a sharp reduction in cell viability towards both normal (HaCaT and MCF-10A) and cancerous (MCF-7 and A375) cells but cytotoxicity was more pronounced towards cancerous cell lines. This may be due to the difference in cell metabolism and the occurrence of high pre-existing levels of reactive oxygen species (ROS) within cancerous cells. The highest toxicity towards both normal and cancerous cell lines was observed with PEGylated MXenes followed by PPGylated and bare MXenes. The normal cell’s viability was barely above 70% threshold with 250 mg/L PEGylated MXene concentration whereas PPGylated and bare MXene were less toxic towards normal cells, even at 500 mg/L concentration. Moreover, the toxicity was found to be directly related to the type of cell lines. In general, the HaCaT cell line exhibited the lowest toxicity while toxicity was highest in the case of the A375 cell line. The photothermal studies revealed high photo response for PEGylated MXene followed by PPGylated and bare MXenes. However, the PPGylated MXene’s lower cytotoxicity towards normal cells while comparable toxicity towards malignant cells as compared to PEGylated MXenes makes the former a relatively safe and effective anticancer agent.

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Facile preparation of in situ coated Ti₃C₂T_x/Ni_0.5Zn_0.5Fe₂O₄composites and their electromagnetic performance

Abstract: Novel accordion structure Ti3C2–Ni0.5Zn0.5Fe2O4composites with nice electromagnetic wave absorption properties.

Cited by 261 publications

References 39 publications

Influence of Ti3C2Tx MXene and Surface-Modified Ti3C2Tx MXene Addition on Microstructure and Mechanical Properties of Silicon Carbide Composites Sintered via Spark Plasma Sintering Method

Influence of Ti3C2Tx MXene and Surface-Modified Ti3C2Tx MXene Addition on Microstructure and Mechanical Properties of Silicon Carbide Composites Sintered via Spark Plasma Sintering Method

Magnetic phase transition from paramagnetic in Nb₂AlC-MAX to superconductivity-like diamagnetic in Nb₂C-MXene: an experimental and computational analysis

A Comparative Study of Cytotoxicity of PPG and PEG Surface-Modified 2-D Ti3C2 MXene Flakes on Human Cancer Cells and Their Photothermal Response

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Facile preparation of in situ coated Ti3C2Tx/Ni0.5Zn0.5Fe2O4composites and their electromagnetic performance

Abstract: Novel accordion structure Ti3C2–Ni0.5Zn0.5Fe2O4composites with nice electromagnetic wave absorption properties.

Cited by 261 publications

References 39 publications

Influence of Ti3C2Tx MXene and Surface-Modified Ti3C2Tx MXene Addition on Microstructure and Mechanical Properties of Silicon Carbide Composites Sintered via Spark Plasma Sintering Method

Influence of Ti3C2Tx MXene and Surface-Modified Ti3C2Tx MXene Addition on Microstructure and Mechanical Properties of Silicon Carbide Composites Sintered via Spark Plasma Sintering Method

Magnetic phase transition from paramagnetic in Nb2AlC-MAX to superconductivity-like diamagnetic in Nb2C-MXene: an experimental and computational analysis

A Comparative Study of Cytotoxicity of PPG and PEG Surface-Modified 2-D Ti3C2 MXene Flakes on Human Cancer Cells and Their Photothermal Response

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Facile preparation of in situ coated Ti₃C₂T_x/Ni_0.5Zn_0.5Fe₂O₄composites and their electromagnetic performance

Magnetic phase transition from paramagnetic in Nb₂AlC-MAX to superconductivity-like diamagnetic in Nb₂C-MXene: an experimental and computational analysis