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Ti3C2Tx-TiO2 composite material as well as preparation method and application thereof

A composite material, H2O2 technology, applied in the direction of analyzing materials, electrochemical variables of materials, chemical instruments and methods, etc., can solve the problems of complicated preparation process, complicated process flow, lack of stability, etc., and achieve low cost and simplified process flow , the effect of good photocurrent response

Inactive Publication Date: 2020-08-04
GUANGZHOU UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While the existing titanium carbide MXene preparation of Ti 3 C 2 T x -TiO 2 Composite materials have disadvantages such as complicated process, long time consumption, and poor product stability.
[0005] In addition, in the study of anti-oxidation capacity detection based on the photosensitive platform, the selection of photoelectric materials is very important, and the stability of photoelectric materials is also very important. Although the existing photosensitive composite systems have good detection results, most of them do not have good stability, and the preparation process is complicated

Method used

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  • Ti3C2Tx-TiO2 composite material as well as preparation method and application thereof
  • Ti3C2Tx-TiO2 composite material as well as preparation method and application thereof
  • Ti3C2Tx-TiO2 composite material as well as preparation method and application thereof

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Embodiment 1

[0037] A preparation of Ti based on oxidized titanium carbide MXene 3 C 2 T x -TiO 2 The method of composite material, concrete steps are as follows:

[0038] 1) Layered Ti 3 C 2 T x Preparation of MXene: synthesized by acid etching, using HF (49%) to stir at room temperature for 4 hours, then sonicated, washed with deionized water and then dried.

[0039] 2) Ti 3 C 2 T x -TiO 2 Preparation: First, disperse 0.1 g of the above-prepared MXene powder into 10 mL of deionized water, stir magnetically at room temperature, and then add 30 wt% H 2 o 2 (The volumes are 30 μL, 60 μL, 90 μL, 120 μL, and 180 μL, and the obtained samples are named as HM 30, HM 60, HM 90, HM 120, HM 180, and HM 0 are MXene samples that have not been treated with hydrogen oxide) at 100 ° C Stir magnetically for 2h. Then the reacted mixture was ultrasonicated (room temperature, power 100W, 30 minutes), washed with deionized water and ethanol, and then dried in a vacuum oven at 40°C for 12 hours ...

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Abstract

The invention belongs to the field of photoelectric materials, and discloses a Ti3C2Tx-TiO2 composite material and a preparation method and application thereof. The preparation method comprises the following steps: dispersing layered Ti3C2Tx Mxene powder into water and stirring, then adding a hydrogen peroxide solution, and carrying out a stirring reaction for 1-3 h at the temperature of 80-120 DEG C; and then carrying out ultrasonic treatment on the mixed solution after the reaction, washing and drying to obtain the Ti3C2Tx-TiO2 composite material. The mass volume ratio of the layered Ti3C2TxMxene powder to H2O2 is 1:(0.3-0.9) g / mL. According to the invention, the composite material with high photoelectric response is obtained by controlling the oxidation degree of Ti3C2Tx. The compositematerial has good photocurrent response and excellent stability and photocorrosion resistance, and can be used for preparing detection chips or sensors. The photoelectric sensor prepared by the method has excellent stability and repeatability.

Description

technical field [0001] The invention belongs to the field of optoelectronic materials, in particular to a Ti 3 C 2 T x -TiO 2 Composite materials and their preparation methods and applications. Background technique [0002] At present, the evaluation of antioxidant performance has been listed as the main research and development direction by food, health care products, cosmetics and other industries, and it is also one of the most important functional demands of the market. There are three types of interactions among antioxidants: synergy, antagonism, and addition. The rapid and accurate evaluation of the synergy between antioxidants is the basis for the scientific use of antioxidant compounding, which is very important for food nutrition and drug design. meaning. [0003] In photoelectrochemical sensing, the semiconductor is excited by light, and the electrons in it jump from the valence band to the conduction band, and the generated holes remain in the valence band, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22C01B32/90C01B32/907C01G23/053G01N27/30
CPCB01J27/22G01N27/305G01N27/308C01G23/053C01B32/90C01B32/907B01J35/39
Inventor 牛利韩冬雪韩方杰
Owner GUANGZHOU UNIVERSITY
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