Compound photocatalyst and preparing method and application thereof

A catalyst, composite light technology, applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve the problem of poor adsorption performance, fast photogenerated electron hole recombination rate, The visible light catalytic performance is not particularly high, and the effects of excellent adsorption performance, easy operation and low cost are achieved.

Inactive Publication Date: 2016-06-08
UNIV OF JINAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, MoS 2 Although photocatalysts can respond to light wavelengths that can be extended to the visible range, their visible light catalytic performance is not particularly high due to their fast photogenerated electron-hole recombination rate and poor adsorption performance.

Method used

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  • Compound photocatalyst and preparing method and application thereof
  • Compound photocatalyst and preparing method and application thereof
  • Compound photocatalyst and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Prepare 75mL of 95mg / LZnCl 2 Solution, add 15mg sodium dodecylbenzene sulfonate at the same time, put 2g kapok into the solution and soak for 2 hours, take it out and dry it at 80°C, then calcinate it at 900°C under nitrogen, and heat up during the calcining process The rate is 5°C / min, the holding time is 1h, then the temperature is lowered to 300°C, and finally cooled naturally to room temperature to obtain ACFs;

[0028] (2) Take 20mg of ACFs described in step (1), mix with 0.242g sodium molybdate and 0.38g thiourea, dissolve in 60mL distilled water, stir evenly, transfer the prepared reaction solution into the lining of 100mL hydrothermal reaction kettle Put it into a hydrothermal reactor for reaction, the reaction temperature is 210°C, and the holding time is 24h. After the reaction is completed, cool to room temperature, remove the supernatant, filter, wash, and dry to obtain MoS 2 / ACFs;

[0029] (3) Take 200mg of MoS as described in step (2) 2 / ACFs is pl...

Embodiment 2

[0031] (1) Prepare 85mL of 95mg / LZnCl 2 Solution, add 15mg sodium dodecylbenzene sulfonate at the same time, put 2g kapok into the solution and soak for 2 hours, take it out and dry it at 80°C, then calcinate it at 900°C under nitrogen, and heat up during the calcining process The rate is 5°C / min, the holding time is 1h, then the temperature is lowered to 300°C, and finally cooled naturally to room temperature to obtain ACF;

[0032] (2) Take 20mg of ACF described in step (1), mix with 0.242g sodium molybdate and 0.38g thiourea, dissolve in 60mL distilled water, stir evenly, transfer the prepared reaction solution into the lining of 100mL hydrothermal reaction kettle Put it into a hydrothermal reactor for reaction, the reaction temperature is 210°C, and the holding time is 24h. After the reaction is completed, cool to room temperature, remove the supernatant, filter, wash, and dry to obtain MoS 2 / ACFs;

[0033] (3) Take 200mg of MoS as described in step (2) 2 / ACFs is plac...

Embodiment 3

[0035] (1) Configure 80mL of 95mg / LZnCl 2 Solution, add 15mg sodium dodecylbenzene sulfonate at the same time, put 2g kapok into the solution and soak for 2 hours, take it out and dry it at 80°C, then calcinate it at 900°C under nitrogen, and heat up during the calcining process The rate is 5°C / min, the holding time is 1h, then the temperature is lowered to 300°C, and finally cooled naturally to room temperature to obtain ACFs;

[0036] (2) Take 20mg of ACFs described in step (1), mix with 0.242g sodium molybdate and 0.38g thiourea, dissolve in 60mL distilled water, stir evenly, transfer the prepared reaction solution into the lining of 100mL hydrothermal reaction kettle Put it into a hydrothermal reactor for reaction, the reaction temperature is 210°C, and the holding time is 24h. After the reaction is completed, cool to room temperature, remove the supernatant, filter, wash, and dry to obtain MoS 2 / ACFs;

[0037] (3) Take 200mg of MoS as described in step (2) 2 / ACFs is ...

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Abstract

The invention discloses a compound photocatalyst and a preparing method and application thereof and belongs to the technical field of photocatalytic materials. Bombax ceiba serves as a biological template to prepare activated carbon fibers (ACFs), MoS2 and CoAl-LDH grow on the ACFs at the same time by the adoption of a hydrothermal method, and finally, the MoS2/CoAl-LDH/ACFs compound photocatalyst is obtained. The method is easy to operate, the technology is simple, the reaction condition is mild, and the obtained catalyst is novel and peculiar in morphology structure, and can effectively degrade organic pollutants in sewage under irradiation of simulated sunlight.

Description

technical field [0001] The invention relates to a catalyst for sewage treatment, in particular to a porous MoS prepared with kapok as a template 2 / CoAl-LDH / ACFs composite photocatalyst and its preparation method and application. Background technique [0002] There are many types of pollutants in wastewater, among which organic pollutants account for the main part. Most of dye wastewater are organic substances with difficult to decompose molecular structure and very stable chemical properties. Therefore, the application of photocatalytic oxidation to degrade organic pollution has become one of the important methods. , and the photocatalytic technology has no secondary pollution. [0003] MoS 2 The band gap is narrow, about 1.97eV, and it has excellent photocatalytic performance under visible light irradiation. However, MoS 2 Although photocatalysts can extend the response wavelength to the visible light range, their visible light catalytic performance is not particularly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/34B01J35/10B01J35/06C02F1/30
CPCY02W10/37B01J31/34B01J35/06B01J35/1014B01J35/1038B01J35/1057C02F1/30C02F2103/30
Inventor 李嘉李红艳徐超超左敏宋鹏
Owner UNIV OF JINAN
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