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A kind of metal-free visible light photocatalyst and preparation method thereof

A photocatalyst and visible light technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of limited photocatalyst types, narrow spectral response range, photoconversion Low efficiency and other problems, to achieve the effect of low cost, simple preparation method and high photon quantum yield

Active Publication Date: 2017-11-03
ANHUI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although photocatalysis research has been carried out for several years, the types of photocatalysts with visible light response reported are still very limited, and there are still problems such as low photoconversion efficiency, poor stability and narrow spectral response range, and the existing photocatalysts Most of them are metal-containing catalysts, which have the disadvantage of high cost

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  • A kind of metal-free visible light photocatalyst and preparation method thereof
  • A kind of metal-free visible light photocatalyst and preparation method thereof
  • A kind of metal-free visible light photocatalyst and preparation method thereof

Examples

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Embodiment 1

[0038] The non-metallic visible light photocatalyst described in this embodiment is prepared from naphthalene and chloromethyl methyl ether as raw materials and anhydrous zinc chloride as a catalyst.

[0039] The preparation method of the non-metallic visible light photocatalyst described in this embodiment comprises the following steps:

[0040] S1. Add anhydrous zinc chloride to 1,2-dichloroethane and mix uniformly to obtain material A, wherein the mass-volume concentration of anhydrous zinc chloride in material A is 0.1g / L; add naphthalene to 1, Mix uniformly in 2-dichloroethane to obtain material B, wherein, in material B, the mass-volume concentration of naphthalene is 100g / L;

[0041]S2. Under the protection of nitrogen, add chloromethyl methyl ether and material A to material B respectively for reaction, wherein the reaction temperature is 40°C, and the reaction time is 18h. Chloromethyl methyl ether and material B The molar ratio of naphthalene in material A is 4:1, a...

Embodiment 2

[0043] The non-metallic visible light photocatalyst described in this embodiment is prepared from anthracene and chloromethyl methyl ether as raw materials and anhydrous ferric chloride as a catalyst.

[0044] The preparation method of the non-metallic visible light photocatalyst described in this embodiment comprises the following steps:

[0045] S1. Add anhydrous ferric chloride to dichloromethane and mix uniformly to obtain material A, wherein the mass-volume concentration of anhydrous ferric chloride in material A is 0.5g / L; add anthracene to dichloromethane and mix uniformly to obtain Material B, wherein, in material B, the mass-volume concentration of anthracene is 90g / L;

[0046] S2. Under the protection of nitrogen, add chloromethyl methyl ether and material A to material B respectively for reaction, wherein the reaction temperature is 65°C, and the reaction time is 16h. Chloromethyl methyl ether and material B The molar ratio of anthracene in material A is 1:1, and t...

Embodiment 3

[0048] The non-metallic visible light photocatalyst described in this embodiment is prepared from anthracene and chloromethyl methyl ether as raw materials and anhydrous ferric chloride as a catalyst.

[0049] The preparation method of the non-metallic visible light photocatalyst described in this embodiment comprises the following steps:

[0050] S1. Add anhydrous ferric chloride to dichloromethane and mix uniformly to obtain material A, wherein the mass-volume concentration of anhydrous ferric chloride in material A is 0.05g / L; add anthracene to dichloromethane and mix uniformly to obtain Material B, wherein, in material B, the mass-volume concentration of anthracene is 150g / L;

[0051] S2. Under the protection of nitrogen, add chloromethyl methyl ether and material A to material B respectively for reaction, wherein the reaction temperature is 55°C, and the reaction time is 18h. Chloromethyl methyl ether and material B The molar ratio of anthracene in material A is 4:1, and...

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Abstract

The invention discloses a non-metal visible light photocatalyst and a preparation method thereof. The non-metal visible light photocatalyst is prepared from condensed ring aromatic hydrocarbons and chloromethyl methyl ether as raw materials and anhydrous metal Lewis acid as a catalyst . Wherein, the preparation method of the non-metallic visible light photocatalyst is simple to operate, and uses pure organic matter as a raw material, and the cost is low. Visible light response, high photon quantum yield, high photocatalytic efficiency and utilization rate of solar energy, and stable performance.

Description

technical field [0001] The invention relates to the technical field of photocatalysts, in particular to a non-metallic visible light photocatalyst and a preparation method thereof. Background technique [0002] With the development of industry, environmental problems and energy problems are becoming more and more prominent, it is imminent to find a method that can effectively remove organic pollutants, and it has attracted great attention from governments and people in various countries. Photocatalytic technology refers to the complete degradation or mineralization of pollutants into environmentally friendly products in a short period of time under the irradiation of ultraviolet light and visible light, or the conversion of light energy into chemical energy, and promotes the synthesis and decomposition of organic matter. The first process is called photocatalysis. As a new type of environmental purification and energy conversion technology, it has shown broad application pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/06C08G65/00
Inventor 黄新华周杰
Owner ANHUI UNIV OF SCI & TECH