Microporous transition metal halide visible photocatalytic material and preparation method and application thereof

A technology of transition metals and catalytic materials, applied in the field of photocatalytic materials, can solve problems such as poor photochemical stability, achieve the effects of improving photocatalytic activity, enriching structure-oriented effects, and reducing electron density

Inactive Publication Date: 2017-12-01
JINING UNIV
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Problems solved by technology

[0004] Aiming at the key problem of poor photochemical stability of transition metal halides, the present invention provides a photochemically stable novel microporous transition metal halide visible light catalytic material [(Me) 2 -2,2-bipy]M 8 x 10 (M=Cu / Ag, X=Br / I) and its preparation method and application

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  • Microporous transition metal halide visible photocatalytic material and preparation method and application thereof
  • Microporous transition metal halide visible photocatalytic material and preparation method and application thereof
  • Microporous transition metal halide visible photocatalytic material and preparation method and application thereof

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Embodiment Construction

[0024] The present invention will be further explained below in conjunction with accompanying drawing:

[0025] The raw materials that the present invention adopts are all provided by Aladdin Reagent Company: KI (purity 99.9%), KBr (purity 99.9%), CuI (99%), AgI (99%), CuBr (99%), AgBr (99%) ), 2,2-bipyridine (99%), methanol (99%), hydroiodic acid (concentration 45%), hydrobromic acid (concentration 48%), acetonitrile (purity 99.5%). The hydrothermal kettle was provided by Jinan Henghua Technology Co., Ltd., with a capacity of 15 mL. The electric blast drying oven was provided by Shanghai Yiheng Scientific Instrument Co., Ltd., the model is DHG-9240(A). The crystal structure is tested by X-ray single crystal diffractometer (German Bruker Company, SMART APEXII), the powder diffraction is tested by X-ray powder diffractometer (Bruker D8ADVANCE), and the UV-visible absorption spectrum is tested by UV-visible spectrophotometer (PE Lambda 900) test, photocatalytic test using Beij...

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Abstract

The invention belongs to the field of photocatalysis materials, and concretely relates to a photochemically stable novel micro-porous transition metal halide visible photocatalysis material [(Me)2-2,2-bipy]M8X10 (M = Cu / Ag, X = Br / I), and a preparation method and an application thereof. The molecular formula of the micro-porous visible photocatalysis material is [(Me)2-2,2-bipy]M8X10, M = Cu / Ag, X = Br / I, and the material has a three dimensional frame structure, wherein [(Me)2-2,2-bipy]Cu8I10 belongs to a monoclinic system and has a P2(1) / c SPACE GROUP; and compounds [(Me)2-2,2-bipy]Ag8I10, [(Me)2-2,2-bipy]Cu8Br10 and [(Me)2-2,2-bipy]Ag8Br10 are isomorphic compounds, belong to a monoclinic system and have a C2 / c space group. The preparation method of the material has the advantages of simplicity and high yield; and the material is a semiconductor material and can degrade rhodamine B, methyl orange and other most organic pollutants under the action of visible light radiation, the photodegradation speed of the material is 2-3 times that of commercial TiO2, and the material has important application values in the environment pollution treatment field.

Description

technical field [0001] The invention belongs to the field of photocatalytic materials, in particular to a photochemically stable novel microporous transition metal halide visible light catalytic material [(Me) 2 -2,2-bipy]M 8 x 10 (M=Cu / Ag, X=Br / I) and its preparation method and application. Background technique [0002] Photocatalyst is a type of semiconductor material that generates photogenerated charges and holes under photoexcitation and induces oxidation-reduction reactions. Using semiconductor photocatalysts for photolysis of water to produce hydrogen, photodegradation of organic pollutants, photocatalytic organic synthesis, photocatalytic reduction of CO 2 It has become one of the most active research fields in the world in recent years. Especially in the degradation of organic pollutants, photocatalysts can react at room temperature, can directly use solar energy, have low energy consumption, can completely mineralize almost all organic pollutants, have no secon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/22B01J35/10A62D3/17A62D101/26A62D101/28
CPCA62D3/17A62D2101/26A62D2101/28B01J31/1815B01J31/22B01J35/004B01J35/1004
Inventor 雷晓武岳呈阳
Owner JINING UNIV
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