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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 photocatalytic materials, and specifically relates to a new photochemically stable microporous transition metal halide visible light catalytic material [(Me)2-2,2-bipy]M8X10(M=Cu / Ag,X=Br / I ) and its preparation methods and applications. A microporous visible light catalytic material whose molecular formula is [(Me)2-2,2-bipy]M8X10, M=Cu / Ag, X=Br / I, and has a three-dimensional framework structure, in which the compound [(Me)2 ‑2,2‑bipy]Cu8I10 belongs to the monoclinic crystal system, P2(1) / c space group; compounds [(Me)2‑2,2‑bipy]Ag8I10, [(Me)2‑2,2‑bipy] Cu8Br10 and [(Me)2‑2,2‑bipy]Ag8Br10 are isostructural compounds with monoclinic crystal system and C2 / c space group. The material has a simple preparation method and high yield. It is a semiconductor material. Under the action of visible light irradiation, it can decompose most organic pollutants such as rhodamine B and methyl orange. Its photodegradation speed reaches 2 times that of commercial TiO2. ‑3 times, which has important application value in the field of environmental pollution control.

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
CPCA62D3/17B01J31/1815B01J31/22A62D2101/26A62D2101/28B01J35/61B01J35/39
Inventor 雷晓武岳呈阳
Owner JINING UNIV
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