Check patentability & draft patents in minutes with Patsnap Eureka AI!

Preparation method and application of TiO2-C-MoO2 nano composite material

A nanocomposite material, tio2-c-moo2 technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, hydrogen production, etc., can solve the problem of low conductivity of composite materials and limited heterogeneity Combining the problems of material performance and process complexity, etc., to achieve the effect of fine particle size, reduction of energy consumption and reaction cost, and uniform distribution

Active Publication Date: 2022-08-05
CHINA THREE GORGES UNIV
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently reported TiO 2 The preparation process of base heterojunction materials is mostly hydrothermal / solvothermal method, the process is relatively complicated, and the conductivity of the obtained composite materials is low, which limits the performance of heterojunction materials.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of TiO2-C-MoO2 nano composite material
  • Preparation method and application of TiO2-C-MoO2 nano composite material
  • Preparation method and application of TiO2-C-MoO2 nano composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Mix 2 g of P25, 1 g of citric acid and x g of ammonium molybdate (x = 0.5, 1, 1.5) evenly, then keep the mixed powder at 200 °C for 1 h in an Ar atmosphere, and then heat to 800℃ for 2h to obtain TiO 2 -C-MoO 2 Nanocomposite, three samples are labeled TCM 2:1:0.5, TCM 2:1:1, TCM 2:1:1.5. For comparison, the samples obtained with 0 amount of ammonium molybdate are labeled as TiO 2 -C.

[0024] TiO prepared above 2 -C-MoO 2 The XRD pattern of the nanocomposite is as follows: figure 1 shown, with the standard sample TiO 2 with MoO 2 The comparative analysis of XRD diffraction peaks found that the composite nanomaterials contained TiO 2 and MoO 2 nanoparticles. Raman spectroscopy analysis of TCM 2:1:1 samples ( figure 2 ) showed that the nanocomposites contained amorphous carbon. SEM of TCM 2:1:1 samples as image 3 shown, from image 3 a and its magnification image 3 b It can be seen that the composite nanomaterials are nano-sized, and the particle size d...

Embodiment 2

[0027]Mix 2 g of P25, x g of citric acid (x = 0, 0.5, 1, 1.5) with 1 g of ammonium molybdate, and then keep the mixed powder at 150 °C for 1 h in an Ar atmosphere. Then heated to 820 °C for 2 h to obtain nanocomposite materials. When the content of citric acid is 0, the obtained product is TiO 2 -MoO 2 Nanocomposite material, after adding citric acid, the Raman spectrum peak of C appeared in the product, which proved that TiO was formed 2 -C-MoO 2 Nanocomposites.

[0028] Take 20 mg of the above-prepared nanocomposite material for photocatalytic hydrogen production test, and the test process is the same as that in Example 1. When the content of citric acid is 0, the obtained TiO 2 -MoO 2 The photocatalytic hydrogen production activity of the nanocomposite is close to P25, which is basically 0, while TiO 2 -C-MoO 2 The photocatalytic hydrogen production activity of the nanocomposites was significantly improved. When the mass of citric acid was 0.5, 1, and 1.5, the hydro...

Embodiment 3

[0030] Mix 2 g of P25, 1 g of citric acid and x g of ammonium molybdate (x = 0.4, 0.6, 0.8, 1, 1.2, 1.4) evenly, and then put the mixed powder in an Ar atmosphere at 200°C. Incubate for 1 h, then heat to 850 °C for 2 h to obtain TiO 2 -C-MoO 2 Nanocomposites. The resulting samples were labeled TCM 2:1:0.4, TCM 2:1:0.6, TCM 2:1:0.8, TCM 2:1:1, TCM 2:1:1.2, TCM 2:1:1.4.

[0031] The prepared TiO 2 -C-MoO 2 Nanocomposites for photocatalytic reduction of hexavalent cadmium ions. 10 mg of the nanocomposite was added to a 50 mg / L dichromate solution. After stirring in the dark room for 40 minutes, the solution was irradiated under a 500W xenon lamp light source, 5 ml of the suspension was taken every 2 minutes for centrifugation, and the obtained supernatant was subjected to ultraviolet-visible absorption spectrum testing to obtain photocatalytic reduction VI. Valence Cr data. The experimental results are as Image 6 As shown, TiO 2 -C-MoO 2 The time required for the nanoc...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method and application of a TiO2-C-MoO2 nano composite material, and belongs to the field of nano material preparation. A one-step high-temperature calcination process is adopted, P25, an organic carbon source and inorganic Mo salt are evenly mixed according to the proportion, the proportion of the P25, the organic carbon source and the inorganic Mo salt is adjusted, a pyrolytic reaction is conducted under the high-temperature condition, the TiO2-C-MoO2 nanocomposite is obtained, and then the TiO2-C-MoO2 nanocomposite is applied to the fields of photocatalytic hydrogen production and sewage treatment. The TiO2-C-MoO2 nano composite material is prepared by adopting a one-step synthesis method, and the method is simple in process, economical, environment-friendly and suitable for batch production. Meanwhile, the prepared TiO2-C-MoO2 nano composite material has better dispersity, can greatly improve the photocatalytic activity of P25, has a very good application prospect, and is beneficial to wide popularization and application.

Description

technical field [0001] The present invention relates to a kind of TiO 2 -C-MoO 2 The invention relates to a preparation method of nano-composite materials and applications thereof, belonging to the field of preparation of functional nano-materials. Background technique [0002] With the development of economy, the problems of energy crisis and environmental pollution caused by the excessive use of traditional fossil energy have become challenges all over the world. At present, the problem recognized by various countries to solve the two major challenges is to develop clean energy, such as solar energy, wind energy, tidal energy and so on. Among them, solar energy is an inexhaustible clean energy. It is a very promising technology to make full use of solar energy to generate clean energy and at the same time remove environmental pollution from industrial production. The key to realizing solar energy utilization is semiconductor photocatalysis technology. Photocatalytic te...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/28B01J35/02C01B3/04C02F1/30B01J35/00
CPCB01J23/28C02F1/30C01B3/042C02F2305/10C01B2203/0277C01B2203/1041B01J35/40B01J35/39Y02E60/36Y02W10/37
Inventor 乔秀清王紫昭李晨侯东芳李东升
Owner CHINA THREE GORGES UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com