Preparation method for sawtooth chain-shaped thio-metal cluster functional material with visible light catalytic performance

A technology of functional materials and catalytic properties, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, chemical/physical processes, etc., can solve problems such as limitations, and achieve easy control and good optical stability , the effect of easy access to raw materials

Inactive Publication Date: 2015-08-12
JIANGNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For example, the documents Chem.Commun., 2011, 47, 11715 and Dalton Trans., 2011, 40, 9299 have reported metal clusters with photocatalytic degradation of organic dyes, but most of the cluster photocatalysts are in It has a photocatalytic degradation effect on related dyes under ultraviolet light irradiation, which limits its practical application

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  • Preparation method for sawtooth chain-shaped thio-metal cluster functional material with visible light catalytic performance
  • Preparation method for sawtooth chain-shaped thio-metal cluster functional material with visible light catalytic performance

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Effect test

Embodiment 1

[0016] Embodiment 1: The preparation method of the zigzag chain thiometal cluster functional material with visible light catalytic performance of the present invention comprises the following steps:

[0017] The first step is to add tungstic acid into the ammonia solution and stir to obtain the ammonia solution of tungstic acid;

[0018] In the second step, hydrogen sulfide is introduced into the aqueous solution of ammonium tungstate prepared in the first step to react, and the compound tetrathioammonium tungstate is obtained through suction filtration and drying;

[0019] In the third step, 0.1 mmol of ammonium tetrathiotungstate was added to 0.4 mmol of cuprous cyanide in 3 ml of N,N'-dimethylformamide solution, and stirred for 20 minutes to obtain a red clear solution;

[0020] In the fourth step, measure 1 milliliter of pyridine and add it to the solution prepared in the third step and stir for 30 minutes to obtain a dark red solution containing a zigzag chain-like thiome...

Embodiment 2

[0023] Embodiment 2: The preparation method of the sawtooth chain thiometal cluster functional material with visible light catalytic performance of the present invention comprises the following steps:

[0024] The first step is to add tungstic acid into the ammonia solution and stir to obtain the ammonia solution of tungstic acid;

[0025] In the second step, hydrogen sulfide is introduced into the aqueous solution of ammonium tungstate prepared in the first step to react, and the compound tetrathioammonium tungstate is obtained through suction filtration and drying;

[0026] In the third step, 0.1 mmol of ammonium tetrathiotungstate was added to 0.3 mmol of cuprous cyanide in 3 ml of N,N'-dimethylformamide solution, and stirred for 30 minutes to obtain a red clear solution;

[0027] In the fourth step, measure 1 milliliter of pyridine and add it to the solution prepared in the third step and stir for 20 minutes to obtain a dark red solution containing a zigzag chain-like thio...

Embodiment 3

[0030] Embodiment 3: The preparation method of the sawtooth chain thiometal cluster functional material with visible light catalytic performance of the present invention comprises the following steps:

[0031] The first step is to add tungstic acid into the ammonia solution and stir to obtain the ammonia solution of tungstic acid;

[0032] In the second step, hydrogen sulfide is introduced into the aqueous solution of ammonium tungstate prepared in the first step to react, and the compound tetrathioammonium tungstate is obtained through suction filtration and drying;

[0033] In the third step, 0.1 mmol of ammonium tetrathiotungstate was added to 0.5 mmol of cuprous cyanide in 3 ml of N,N'-dimethylformamide solution, and stirred for 15 minutes to obtain a red clear solution;

[0034] In the fourth step, measure 1 milliliter of pyridine and add it to the solution prepared in the third step and stir for 20 minutes to obtain a dark red solution containing a zigzag chain-like thio...

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Abstract

The invention discloses a preparation method for a sawtooth chain-shaped thio-metal cluster functional material with visible light catalytic performance. The preparation method comprises the following steps: introducing hydrogen sulfide into an ammonia water solution of tungstic acid or sodium molybdate to react, and preparing ammonium tetrathiotungstate or ammonium tetrathiomolybdate by performing suction filtration and drying; adding the ammonium tetrathiotungstate or ammonium tetrathiomolybdate into a N, N '-dimethyl formamide solution of cuprous cyanide; adding pyridine into the prepared solution, and stirring to prepare a solution containing the sawtooth chain-shaped thio-metal cluster functional material; filtering, adding a precipitator, crystallizing, filtering, washing and drying to obtain the sawtooth chain-shaped thio-metal cluster functional material. The preparation method has the advantage that the sawtooth chain-shaped thio-metal cluster functional material with visible light catalytic performance for effectively degrading organic dye methylene blue is obtained.

Description

a technical field [0001] The invention relates to the preparation of photocatalytic materials, in particular to a preparation method of a zigzag chain thiometal cluster functional material capable of catalytically degrading organic dye methylene blue with visible light. Two background technology [0002] With the rapid development of modern industry, the world is facing severe challenges of energy crisis and environmental pollution. The environment and energy are major issues that directly affect human survival and development. Industrial wastewater and waste gas contain many harmful substances, such as organic pesticides, organic dyes, chlorine-based solvents (dichloroethylene, trichloroethylene, etc.), benzene-based solvents, aldehydes, and ketones. Traditional water treatment methods such as adsorption method, coagulation method, activated sludge method, etc., have certain difficulties in the actual treatment process, and the effect is not ideal. Therefore, it is urgent ...

Claims

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Application Information

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IPC IPC(8): B01J31/22C02F1/30
CPCY02W10/37
Inventor 张金方王超张弛
Owner JIANGNAN UNIV
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