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Preparation method for CdS/MIL-53 (Fe) visible light catalyst

A catalyst and visible light technology, applied in physical/chemical process catalysts, chemical instruments and methods, chemical/physical processes, etc.

Inactive Publication Date: 2017-04-26
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] After searching, no patent application or literature report on the method of preparing a new type of CdS / MIL-53(Fe) visible photocatalytic material using cadmium acetate, thioacetamide and MIL-53(Fe) as raw materials and using solvothermal technology was found.

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  • Preparation method for CdS/MIL-53 (Fe) visible light catalyst
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  • Preparation method for CdS/MIL-53 (Fe) visible light catalyst

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Embodiment 1

[0034] The concrete steps of this embodiment are as follows:

[0035] In this embodiment, the preparation method of CdS / MIL-53(Fe) visible light catalyst is to use ferric trichloride, terephthalic acid and N,N-dimethylformamide as raw materials first, and adopt the solvothermal method Preparation of MIL-53 (Fe) material; then using the obtained MIL-53 (Fe) and cadmium acetate, thioacetamide, polyvinylpyrrolidone and ethylene glycol as raw materials, the solvothermal method was used to prepare CdS / MIL-53 (Fe ) composite material. Its technological process is: weigh the FeCl of 10 mmol 3 ·6H 2 O and 10 mmol of terephthalic acid were dissolved in 50 mL of N,N-dimethylformamide reagent, and stirred continuously at room temperature to fully dissolve ferric chloride and terephthalic acid; the resulting mixture was Move it into a 100 mL reaction kettle, put the reaction kettle in an oven at 150°C, and react for 12 hours; after cooling to room temperature, it is centrifuged, washed...

Embodiment 2

[0039] The concrete steps of this embodiment are as follows:

[0040] In this embodiment, the preparation method of CdS / MIL-53(Fe) visible light catalyst is to use ferric chloride, terephthalic acid and N,N-dimethylformamide as raw materials, and adopt the solvothermal method Preparation of MIL-53 (Fe) material; then using the obtained MIL-53 (Fe) and cadmium acetate, thioacetamide, polyvinylpyrrolidone and ethylene glycol as raw materials, the solvothermal method was used to prepare CdS / MIL-53 (Fe ) composite material. Its technological process is: weigh the FeCl of 10 mmol 3 ·6H 2 O and 10 mmol of terephthalic acid were dissolved in 50 mL of N,N-dimethylformamide reagent, and stirred continuously at room temperature to fully dissolve ferric chloride and terephthalic acid; the resulting mixture was Move it into a 100 mL reaction kettle, put the reaction kettle in an oven at 150°C, and react for 12 hours; after cooling to room temperature, centrifuge, wash with double disti...

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Abstract

The invention relates to a preparation method for a novel CdS / MIL-53 (Fe) visible light catalyst. The preparation method comprises the steps that an MIL-53 (Fe) material is prepared from ferric trichloride, terephthalic acid and N,N-dimethylformamide at the molar ratio of 1:1:65 by adopting the solvothermal method at first; then cadmium acetate, thioacetamide, polyvinylpyrrolidone, ethylene glycol and MIL-53 (Fe) are weighed according to the mass ratio of cadmium sulfide to the MIL-53 (Fe) being (1-1.5):1, and the MIL-53 (Fe) is dispersed in the ethylene glycol; the cadmium acetate is added; and the thioacetamide and the polyvinylpyrrolidone are added, reaction is conducted for 12 hours at the temperature of 180 DEG C, centrifugation, secondary distilled water washing and absolute ethyl alcohol washing are conducted for 5-6 times, drying is conducted for 10 hours at the temperature of 60 DEG C, and the CdS / MIL-53 (Fe) visible light catalyst is finally obtained. The catalytic activity of the CdS / MIL-53 (Fe) visible light catalyst is excellent, and the degradation rate of the visible light catalyst on rhodamine B is 71%-90%.

Description

technical field [0001] The invention relates to a method for preparing a CdS / MIL-53(Fe) visible light catalyst. The material is used for visible light catalytic degradation of organic pollutants such as rhodamine B, and belongs to the technical field of photocatalytic material preparation. Background technique [0002] As a new type of environmentally friendly catalytic technology, photocatalytic technology has attracted increasing attention in the fields of environmental governance, new energy development, and organic synthesis. Especially in environmental governance, photocatalytic degradation technology is gradually becoming the supplement and improvement of traditional pollution control technology. Its biggest advantage is that the degradation reaction is generally carried out at normal temperature and pressure, which can completely decompose organic pollutants in water and air, and mineralize them into CO 2 and H 2 O. In addition, photocatalytic technology uses light...

Claims

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Application Information

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IPC IPC(8): B01J27/043C02F1/30
CPCC02F1/30B01J27/043C02F2101/308B01J35/39
Inventor 胡龙兴邓桂花张雨瑶
Owner SHANGHAI UNIV
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