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Method for preparing supported cadmium sulfide photocatalyst

A photocatalyst and cadmium sulfide technology, which is applied in the field of photocatalytic materials to achieve the effects of efficient catalytic degradation, good economic benefits and good adsorption performance

Inactive Publication Date: 2016-12-07
GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention aims at the problems existing in the existing photocatalyst, and provides a preparation method of the loaded cadmium sulfide photocatalyst

Method used

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  • Method for preparing supported cadmium sulfide photocatalyst

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Comparison scheme
Effect test

Embodiment 1

[0023] A preparation method of supported cadmium sulfide photocatalyst, comprising the following steps:

[0024] (1) Weigh each raw material according to the proportion: cadmium nitrate 40g, thiourea 15g, disodium edetate 6g, acrylic acid maleic anhydride copolymer 7g, fly ash 10g, iron porphyrin 2g, indium nitrate 1g and carboxylate Sodium methylcellulose 5g;

[0025] (2) Add cadmium nitrate and thiourea into the ultrasonic generator, add 200mL of water to dissolve them, then add disodium edetate, and continue ultrasonication for 60min at a frequency of 40KHz to obtain a suspension;

[0026] (3) Put the suspension, acrylic acid maleic anhydride copolymer, fly ash, iron porphyrin and sodium carboxymethylcellulose into the ball mill, then add 150mL of water, and stir for 60min at a speed of 300r / min to obtain a paste thing;

[0027] (4) Microwave dry the above paste at 80°C for 2.5h, grind it into a powder with a particle size of 1.0mm after drying, and put it into a horse bo...

Embodiment 2

[0029] A preparation method of supported cadmium sulfide photocatalyst, comprising the following steps:

[0030] (1) Weigh each raw material according to the proportion: cadmium nitrate 50g, thiourea 20g, disodium edetate 8g, acrylic acid maleic anhydride copolymer 5g, fly ash 12g, iron porphyrin 3g, indium nitrate 2g and carboxylate Sodium methylcellulose 8g;

[0031] (2) Add cadmium nitrate and thiourea into the ultrasonic generator, add 250mL of water to dissolve them, then add disodium edetate, and continue ultrasonication for 60min at a frequency of 50KHz to obtain a suspension;

[0032] (3) Put the suspension, acrylic acid maleic anhydride copolymer, fly ash, iron porphyrin and sodium carboxymethylcellulose into the ball mill, then add 150mL of water, and stir for 30min at a speed of 500r / min to obtain a paste thing;

[0033] (4) Microwave dry the above paste at 90°C for 2h, grind it into a powder with a particle size of 1.0mm, put it into a horse boiling furnace and b...

Embodiment 3

[0035] A preparation method of supported cadmium sulfide photocatalyst, comprising the following steps:

[0036] (1) Weigh each raw material according to the proportion: cadmium nitrate 60g, thiourea 25g, edetate disodium 10g, acrylic acid maleic anhydride copolymer 8g, fly ash 15g, cobalt porphyrin 3g, indium nitrate 1.5g and Sodium carboxymethyl cellulose 10g;

[0037] (2) Add cadmium nitrate and thiourea into the ultrasonic generator, add 300mL of water to dissolve them, then add disodium edetate, and continue ultrasonication for 30min at a frequency of 60KHz to obtain a suspension;

[0038] (3) Put the suspension, acrylic acid maleic anhydride copolymer, fly ash, cobalt porphyrin and sodium carboxymethylcellulose into the ball mill, then add 150mL of water, and stir for 45min at a speed of 400r / min to obtain a paste thing;

[0039] (4) Microwave dry the above paste at 100°C for 1.5h, grind it into a powder with a particle size of 2.0mm after drying, and then put it into ...

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Abstract

The invention discloses a method for preparing a supported cadmium sulfide photocatalyst. The method comprises the following steps: weighing the following raw materials in parts by weight: 40-60 parts of cadmium nitrate, 15-25 parts of thiourea, 6-10 parts of ethylene diamine tetraacetic acid, 5-10 parts of acrylic acid-maleic anhydride copolymer, 10-15 parts of pulverized fuel ash, 2-3 parts of metalloporphyrin, 1-2 parts of indium nitrate and 5-10 parts of sodium carboxymethylcellulose; adding cadmium nitrate and thiourea into an ultrasonic generator, adding a proper amount of water for dissolving, and then adding ethylene diamine tetraacetic acid for reacting to obtain turbid liquid; adding the turbid liquid, acrylic acid-maleic anhydride copolymer, pulverized fuel ash, metalloporphyrin and sodium carboxymethylcellulose into a ball mill, and adding water for stirring to obtain the paste; drying the paste, grinding, and roasting to obtain the photocatalyst. The method disclosed by the invention has the advantages of wide raw material source, low cost, simple preparation process, high production efficiency, low energy consumption, high catalytic activity, high catalytic efficiency and the like, is capable of catalyzing and degrading organic pollutants in wastewater and has excellent economic, ecological and social benefits.

Description

technical field [0001] The invention relates to the technical field of photocatalytic materials, in particular to a preparation method of a loaded cadmium sulfide photocatalyst. Background technique [0002] Since the 21st century, with the improvement of the pace of industrialization and the excessive use of natural resources, various environmental pollution and energy scarcity problems have continued to intensify. Therefore, it is imminent to control all kinds of pollution and find new energy sources to relieve the pressure on the earth. Photocatalytic technology has been widely used in many fields such as wastewater treatment, gas purification, sterilization, antifouling, self-cleaning materials, dye-sensitized solar cells, cosmetics, and gas sensors. Photocatalysis is based on the basic characteristics of semiconductor materials that can generate photogenerated electrons with strong reductivity and holes with strong oxidative properties under light excitation. Solid pho...

Claims

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Application Information

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IPC IPC(8): B01J27/047
CPCB01J27/047B01J35/39
Inventor 杨贺
Owner GUANGXI NANNING SHENGQIAN TECH DEV CO LTD
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