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Photocatalyst-containing organic material

A photocatalyst and organic material technology, applied in catalyst activation/preparation, physical/chemical process catalyst, organic compound/hydride/coordination complex catalyst, etc. sufficient, insufficient mechanical strength or durability, etc., to achieve the effect of inhibiting photocatalytic activity

Inactive Publication Date: 2008-09-24
MITSUI CHEM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] However, the photocatalysts described in Patent Documents 4 and 5 have insufficient photodecomposition performance for organic substances, and the photocatalyst described in Patent Document 5 has insufficient adsorption capacity for harmful gases other than basic gases.
The reason for this is considered to be that the structure of the photocatalyst obtained by the method described in Patent Document 5 or the mechanical strength or durability of the coating layer of silica hydrate is insufficient.

Method used

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  • Photocatalyst-containing organic material
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  • Photocatalyst-containing organic material

Examples

Experimental program
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Effect test

Embodiment 1

[0217] After keeping LABO PLASTOMILL at 200°C, add 48.0g polymethylmethacrylate (PMMA) resin while stirring, after melting, add 1.70g photocatalyst 1 (calculated as titanium dioxide, relative to PMMA resin is 3%), mix . After cooling, the composition was pulverized, and then heated and pressurized at 200° C. to obtain a plate-shaped molded body (molded body 1) with a size of 1.5 cm×8 cm and a thickness of 1 mm.

Embodiment 2

[0219] Using the photocatalyst 2 and the PMMA resin, the same method as in Example 1 was used for heating and press molding to obtain a plate-shaped molded body (molded body 2).

Embodiment 3

[0221] Using the photocatalyst 5 and the PMMA resin, the same method as in Example 1 was used for heating and press molding to obtain a plate-like molded body (molded body 3).

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Abstract

The invention provides a photocatalyst-containing organic material which is suppressed in the decomposition or deterioration of an organic substance being in contact with a photocatalyst with the photocatalytic function retained, namely, an organic material constituted of a member made of an organic substance and a photocatalyst contained in the member, characterized in that the photocatalyst comprises a base having catalytic activity and a substantially pore-free silicon oxide film covering the base and that the alkali metal content of the photocatalyst is 1 to 1000ppm.

Description

technical field [0001] The present invention relates to a photocatalyst-containing organic material in which a member made of an organic substance contains a photocatalyst. Background technique [0002] Metal oxide semiconductors such as titanium dioxide and zinc oxide have the property of absorbing light having energy equivalent to their bandwidth. In recent years, attention has been paid to the high reactivity of holes and electrons generated by excitation by light irradiation, and attempts are being made to use the above-mentioned metal oxide semiconductors as "photocatalysts" for water purification, antifouling, antibacterial, deodorizing, and air purification. Waiting for environmental purification. Here, the function of water purification, air purification, or deodorization is the effect of decomposing pollutants or odorous substances under the redox action of photocatalysts. Specifically, it can be further applied to decompose VOC, environmental hormones, nitrogen O...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J35/02B01J35/10C08K9/02C08L101/00
CPCC08K3/36C08K9/02B01J37/0244B01J37/0215B01J31/06C02F2305/10B01J35/004Y02W10/37B01J21/06B01J35/02C08L101/00
Inventor 堀内伸彦锅田贵司宫添智
Owner MITSUI CHEM INC
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