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Poly furfuryl alcohol /TiO2 nano composite material and preparation method thereof

A nanocomposite material, polyfurfuryl alcohol technology, applied in the field of composite materials, can solve the problems of limiting the practical application and development of photocatalytic materials, easy recombination of photogenerated electrons and holes, and low photon quantum efficiency, so as to improve thermal stability and catalytic performance , shorten the preparation time and simplify the preparation procedure

Inactive Publication Date: 2008-04-16
NORTHWEST NORMAL UNIVERSITY
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Problems solved by technology

[0003] Due to TiO 2 The photocatalyst has a wide band gap energy. In principle, it can only absorb ultraviolet light with a wavelength shorter than 387nm. The photoresponse range is narrow, and photogenerated electrons and holes are easy to recombine. 2 Practical application and development of photocatalytic materials

Method used

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  • Poly furfuryl alcohol /TiO2 nano composite material and preparation method thereof
  • Poly furfuryl alcohol /TiO2 nano composite material and preparation method thereof
  • Poly furfuryl alcohol /TiO2 nano composite material and preparation method thereof

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Embodiment Construction

[0037] 1. Preparation of two-phase solution

[0038] ①Preparation of aqueous phase solution: under the condition of ice-water bath, TiCl 4 The solution is dissolved in deionized water at a molar ratio of 1:15 to 2:15, and stirred for 1 to 2 hours to obtain an aqueous phase solution;

[0039] ② Preparation of organic phase solution: at room temperature, dissolve organic monomer furfuryl alcohol—2-hydroxyfuran methanol monomer in toluene at a molar ratio of 1:20 to 1:10 to obtain an organic phase solution.

[0040] 2 Preparation of composite materials

[0041] Transfer the aqueous phase solution into a jar, then carefully transfer the organic phase solution into the jar to form an interface between the organic and aqueous phases, then react in a water bath at 70-80°C for 30 minutes, a red polymer appears on the interface, and gradually Diffusion in the aqueous phase. After continuing to react for a certain period of time (6-8 hours), the water phase completely turns red. Was...

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Abstract

The invention provides a preparation method for poly furfuryl alcohol / TiO2 nanometer composite material. The method is as follows: TiCl4 dissolves in deionized water to form an aqueous solution as an aqueous phase, organic monomer furfuryl alcohol dissolves in toluene to form a solution as an organic phase, then the water phase and the organic phase are mixed to from a clear interface between the two phases, the interface can polymerize to obtain the predecessor of the poly furfuryl alcohol / TiO2 nanometer composite material after constant temperature treatment for from 6 to 8 hours at a temperature from 70 to 80 DEG C, the predecessor of the composite material is washed by water and absolute ethyl alcohol to become achromatic, and the poly furfuryl alcohol / TiO2 nanometer composite material is finally obtained after vacuum drying at a room temperature and grinding. Through transmission electrical mirror photos, the poly furfuryl alcohol / TiO2 nanometer composite material provided by the invention is proved that: in the poly furfuryl alcohol / TiO2 nanometer composite material system, the TiO2 disperses evenly in the polymer, and the polymer and the TiO2 bond tightly and are both nanometer particles with small size. The composite material prepared by the invention exerts the advantages of the TiO2 and has good workability and catalysis performance.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and relates to the preparation of a nanocomposite material, in particular to a polyfurfuryl alcohol / TiO 2 Nanocomposites and methods for their preparation. Background technique [0002] Photochemical oxidation technology uses cheap and clean sunlight as energy, and oxygen, ozone and hydrogen peroxide as oxidants to completely oxidize a variety of refractory organic pollutants to produce harmless and non-toxic substances. This technology has become a hot spot in the research and development of sewage treatment technology. while TiO 2 Photocatalysts are characterized by high activity, good thermal stability, strong photooxidation resistance, low price, safety and non-toxicity, especially TiO 2 Photocatalytic technology has the outstanding advantages of simple operation, mild reaction conditions, and no secondary pollution. It has become the most valued photocatalyst and is considered...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L71/08C08K3/22
Inventor 苏碧桃慕红梅胡常林左显维
Owner NORTHWEST NORMAL UNIVERSITY
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