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Preparation method of Ti3C2/TiO2 two-dimensional material

A technology of two-dimensional materials and composite materials, applied in the field of preparation of Ti3C2/TiO2 two-dimensional materials, can solve problems such as unstable chemical properties

Inactive Publication Date: 2017-09-15
SHENZHEN UNIV
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Problems solved by technology

In the early days, cadmium sulfide (CdS) and zinc oxide (ZnO) were often used as photocatalyst materials, but due to the unstable chemical properties of the two, photodissolution will occur at the same time as photocatalysis, and the dissolution of harmful metal ions has Certain biological toxicity, so developed countries have rarely used them as civil photocatalytic materials

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  • Preparation method of Ti3C2/TiO2 two-dimensional material
  • Preparation method of Ti3C2/TiO2 two-dimensional material
  • Preparation method of Ti3C2/TiO2 two-dimensional material

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Embodiment Construction

[0017] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] This embodiment provides a Ti 3 C 2 / TiO 2 The preparation method of two-dimensional material, this preparation method is in Ti 3 C 2 In situ growth of TiO on MXene 2 got the two-dimensional Ti 3 C 2 / TiO 2 Composite materials, two-dimensional Ti 3 C 2 / TiO 2 Composite materials not only have both Ti 3 C 2 MXene and TiO 2 advantages, and Ti 3 C 2 with TiO 2 The Schott junction is formed, which greatly improves the efficiency of the composite material in the field of photocatalysis.

[0019] Ti 3 C 2 / TiO 2 The preparation method of two-dimensional material comprises the following steps, at first, step S1: Ti 3 C 2 Preparation of MXene; Specifically, Step S11: Quantitatively weigh 1 g of Ti in the MAX phase 3 AlC 2 , the Ti of the MAX phase 3 AlC 2 Dissolve in HF with a concentration of 50%, and make it react un...

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Abstract

The invention discloses a preparation method of a Ti3C2 / TiO2 two-dimensional material. The preparation method comprises the steps of preparing a Ti3C2MXene film material, carrying out heat oxidation so as to increase interlayer spacing, and generating TiO2 on a Ti3C2 slice layer in situ, so as to obtain the Ti3C2 / TiO2 two-dimensional material. By one-step in-situ growth of TiO2 on Ti3C2, the Ti3C2 / TiO2 two-dimensional material is obtained. The prepared composite material is large in specific surface area and good in electrical conductivity and has the characteristics of a photo-induced electron cavity pair; and meanwhile, shottky contact is formed between Ti3C2 and TiO2, so that the photocatalysis efficiency of the composite material is improved. The preparation method is simple in process, low in cost and applicable to large-scale application, and furthermore, the Ti3C2 / TiO2 composite material is very suitable for being applied to the photocatalysis field.

Description

technical field [0001] The invention relates to the field of material chemistry, in particular to a Ti 3 C 2 / TiO 2 Methods for the preparation of two-dimensional materials. Background technique [0002] Traditional catalytic science has made extremely important contributions to mankind. In the process of facing the century, photocatalysis may be one of the most promising new technologies for treating various types of wastewater. The advantages of photocatalytic degradation technology are simple process, low cost Inexpensive, organic matter with stable structure can be oxidized and decomposed under normal temperature and pressure, using sunlight as a light source, without secondary pollution. At present, among the semiconductor catalysts used in heterogeneous photocatalytic reactions, TiO2 is favored for its non-toxicity, high catalytic activity, good stability and strong oxidation resistance. [0003] MXene is a transition metal carbide or nitride with a two-dimensional...

Claims

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Application Information

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IPC IPC(8): B01J27/22B01J37/10B01J37/34B01J35/10
CPCB01J27/22B01J37/10B01J37/343B01J35/60B01J35/39
Inventor 刘新科刘睿李奎龙顾虹吕有明俞文杰韩舜曹培江柳文军曾玉祥贾芳朱德亮
Owner SHENZHEN UNIV
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