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Visible light intercalation photocatalytic material and its preparing method

A technology of photocatalytic materials and intercalation materials, applied in the field of visible light intercalation photocatalytic materials and their preparation, to achieve the effects of high visible light activity, good structural stability, and strong adsorption capacity

Inactive Publication Date: 2006-05-24
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] One of the objectives of the present invention is to provide a visible light intercalation photocatalytic material to solve the problems existing in the existing visible light catalytic materials;

Method used

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  • Visible light intercalation photocatalytic material and its preparing method
  • Visible light intercalation photocatalytic material and its preparing method

Examples

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Embodiment 1

[0020] 10 g K 2 Ti 4 o 9 Put in 2M HNO 3 Proton exchange in solution yields H2 Ti 4 o 9 . then H 2 Ti 4 o 9 Add it to a 20% n-butylamine solution by volume, stir at 5°C for 72 hours, and separate by filtration. will give the modified H of n-butylamine 2 Ti 4 o 9 Added to containing 1 g TiO 2 0.1M TiO 2 In the nano-sol, stir at 5°C for 96 hours, filter and separate, take 5 grams of the solid obtained by the above method and place it in an aqueous solution containing 0.025 grams of tetracarboxy copper phthalocyanine, stir at 0°C for 72 hours, filter and wash, After drying, the visible light intercalation photocatalytic material was obtained. The visible light photocatalytic activity of photocatalytic materials was tested, and the results are shown in Table 1.

Embodiment 2

[0022] 10 g K 2 Ti 4 o 9 Put in 2M HNO 3 Proton exchange in solution yields H 2 Ti 4 o 9 . H 2 Ti 4 o 9 Add it into a 20% n-hexylamine solution by volume, stir at 80° C. for 12 hours, and separate by filtration. The obtained n-hexylamine modified H 2 Ti 4 o 9 Added to the containing 0.02 g SiO 2 0.1M SiO 2 In the nano-sol, stir at 20° C. for 12 hours, filter and separate, add the obtained powder into water to fully hydrolyze, and filter and separate. Take 5 grams of the solid obtained by the above method and place it in an aqueous solution containing 0.0025 grams of tetrasulfonic acid copper phthalocyanine, stir at 80° C. for 12 hours, filter and wash, and dry to obtain a visible light intercalation photocatalytic material. The visible light photocatalytic activity of photocatalytic materials was tested, and the results are shown in Table 1.

Embodiment 3

[0024] 10 g K 4 Nb 6 o 17 Put in 2M HNO 3 Proton exchange in solution yields H 4 Nb 6 o 17 . will get H 4 Nb 6 o 17 Add it into a 10% n-octylamine solution by volume percentage, stir at 60° C. for 18 hours, and separate by filtration. The obtained n-octylamine modified H 4 Nb 6 o 17 Added to containing 0.2 g ZrO 2 ZrO 2 In the nano-sol, stirred at 80°C for 12 hours, and separated by filtration. Take 5 grams of the solid obtained by the above method and place it in a methanol solution containing 0.05 grams of octacarboxyiron phthalocyanine, stir at 80° C. for 12 hours, filter and wash, and dry to obtain a visible light intercalation photocatalytic material. The visible light photocatalytic activity of photocatalytic materials was tested, and the results are shown in Table 1.

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Abstract

The present invention relates to a visible light intercalation photocatalysis material and its preparation method. The described photocatalysis material is formed from perovskite oxide with lamellar structure, nano-grade metal oxide or ion-cluster as intercalation material and dyestuff, in which the mass ratio of dyestuff, nano-grade metal oxide or ion-cluster and perovskite oxide is (0.05-2.0);(0.2-10):100. The described photocatalysis material is obtained by adopting the following steps: firstly, making the nano-grade metal oxide or ion-cluster be inserted into the perovskite oxide with lamellar structure, then utilizing dye to make modification.

Description

technical field [0001] The invention relates to a visible light photocatalytic material and a preparation method thereof, in particular to a visible light intercalation photocatalytic material and a preparation method thereof. Background technique [0002] Nanophotocatalysis is a hot technology development direction in the field of photochemistry and material science in recent years. Photocatalytic technology has high application prospects in the use of solar energy for environmental pollution control, solar cells, and photocatalytic hydrogen production. Since the driving force of the photocatalytic reaction comes from clean light energy, the semiconductor photocatalytic material itself is non-toxic and its physical and chemical properties are quite stable. After a thorough reaction, no secondary pollution will be generated. Photocatalytic technology is used in the treatment of environmental pollutants. There are hardly any restrictions. Internationally, especially in Japa...

Claims

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Application Information

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IPC IPC(8): B01J21/00B01J23/00B01J31/22B01J37/30
Inventor 陈锋邓志刚李晓佩张金龙
Owner EAST CHINA UNIV OF SCI & TECH
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