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Nano composite material of polyaniline intercalation titanate and preparation method thereof

A nano-composite material and layered titanate technology, applied in the field of polyaniline intercalated titanate nano-composite materials and their preparation, can solve problems such as intercalation difficulties, achieve high application value, reduce compounding, and improve optoelectronics The effect of conversion performance

Inactive Publication Date: 2009-10-28
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong force between the layers of layered titanate, the intercalation of the guest is difficult, so the research work on polyaniline intercalated titanate has not been reported in the literature.

Method used

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  • Nano composite material of polyaniline intercalation titanate and preparation method thereof
  • Nano composite material of polyaniline intercalation titanate and preparation method thereof
  • Nano composite material of polyaniline intercalation titanate and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] 3.26g Cs 2 CO 3 and 4.07g TiO 2 After mixing and grinding, put it into a muffle furnace, calcinate at 800°C for 60 minutes, grind it after cooling to room temperature and calcinate at 800°C for 20 hours, and grind it again after cooling to room temperature and calcinate at 800°C for 20 hours , to obtain layered cesium titanate Cs 0.67 Ti 1.83 □ 0.17 o 4 .

[0028] 1.5g layered cesium titanate Cs 0.67 Ti 1.83 □ 0.17 o 4 Add 80 mL of hydrochloric acid HCl solution with a concentration of 1.0 mol / L and mix and stir for 3 days, replace the hydrochloric acid HCl solution with a concentration of 1.0 mol / L every 24 hours, wash the product with twice distilled water to pH=6.0, and place the product in Dry to constant weight in a desiccator filled with saturated sodium chloride NaCl solution to obtain protonated layered titanate H 0.67 Ti 1.83 □ 0.17 o 4 ·H 2 O.

[0029] 1 g of protonated layered titanate H dried to constant weight 0.67 Ti 1.83 □ 0.17 o 4 ·H ...

Embodiment 2

[0034] 3.26g Cs 2 CO 3 and 4.39g TiO 2 After mixing and grinding, put it into a muffle furnace, calcinate at 900°C for 30 minutes, grind it after cooling to room temperature and calcinate at 900°C for 24 hours, and grind it again after cooling to room temperature and calcinate at 900°C for 24 hours , to obtain layered cesium titanate Cs 0.73 Ti 1.82 □ 0.18 o 4 .

[0035] 2.5g layered cesium titanate Cs 0.73 Ti 1.82 □ 0.18 o 4 Add to 300mL hydrochloric acid HCl solution with a concentration of 1.5mol / L and mix and stir for 4 days, replace the hydrochloric acid HCl solution with a concentration of 1.5mol / L every 24 hours, wash the product with twice distilled water to pH=7.0, and place the product in Dry to constant weight in a desiccator filled with saturated sodium chloride NaCl solution to obtain protonated layered titanate H 0.73 Ti 1.82 □ 0.18 o 4 ·H 2 O.

[0036] Protonated layered titanate H dried to constant weight at 1 g 0.73 Ti 1.82 □ 0.18 o 4 ·H 2...

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Abstract

A nano composite material of polyaniline intercalation titanate and a preparation method thereof belong to the technical field of organic / inorganic nano composite materials and the preparation thereof. The chemical composition of the nano composite material is PANI / HxTi2-x / 4 vacancy x / 4O4.H2O, wherein PANI is polyaniline, the mass ratio of which is 7.0 percent to 8.0 percent in the composite material; HxTi2-x / 4 vacancy x / 4O4.H2O is protonated layered titanate, vacancy is a titanium vacancy in the layer plate, and x is more than or equal to 0.65 and less than or equal to 0.75. The nano composite material can expand the photoelectrical response range to a visible region and reduce the probability of composition of photo-induced electrons and photo-induced holes. Aniline monomer is inserted between the layers of HxTi2-x / 4 vacancy x / 4O4.H2O by acid radical reaction, and simultaneously, the aniline between the layers is polymerized in the presence of oxygen, thus obtaining the product. The nano composite material has application value in the filed of photocatalysis, solar batteries, photoelectric sensors and the like.

Description

technical field [0001] The invention belongs to the technical field of organic / inorganic nanocomposite materials and their preparation, and in particular relates to a polyaniline intercalated titanate nanocomposite material and a preparation method thereof. technical background [0002] Layered titanate is a cationic layered compound that has a wrinkled two-dimensional layered structure and is filled with cations and water molecules by titanium and oxygen sharing edges and points through octahedrons. Layered titanate is a derivative of titanium dioxide. It has stable chemical properties, is environmentally friendly, is cheap and easy to obtain, and has the properties of an n-type semiconductor. It is a photoelectric conversion material and has application value in the fields of photocatalysis, solar cells, and photoelectric sensors. . However, layered titanate is a wide bandgap semiconductor material with a forbidden band width greater than 3.0eV, and the corresponding phot...

Claims

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Application Information

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IPC IPC(8): C08L79/02C08K9/02C08K3/24
Inventor 杨文胜郭涛
Owner BEIJING UNIV OF CHEM TECH
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