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A kind of ag load wo 3 Nanofiber-porous carbon photocatalytic material and its preparation method
Active Publication Date: 2021-11-23
广东星帮尼科技股份有限公司
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[0006] Aiming at the deficiencies of the prior art, the present invention provides an Ag-loaded WO 3 The nanofiber-porous carbon photocatalytic material and its preparation method solve the problems that the existing photocatalytic degradation materials have poor dispersibility in water and are easy to agglomerate and agglomerate, and at the same time solve the problem that the photocatalytic degradation material is sensitive to inorganic heavy metals and their ions. The problem of poor adsorption effect
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[0024] Hyperbranched polyacrylate preparation method comprises the following steps:
[0032] (1) Preparation of hyperbranched polyacrylate 1: Pass high-purity N into the reaction bottle 2 , add an appropriate amount of distilled water and acetone as a mixed solvent, the volume ratio of the two is 2:1, then add triethanolamine and acrylamide in sequence, stir evenly, add catalyst concentrated sulfuric acid, adjust the pH to 11, and heat the reaction bottle to 80 °C, Stirring and reflux reaction at a uniform speed for 8h, then slowly add initiator dibenzoyl peroxide (BPO), the amount mol ratio of the four of triethanolamine, acrylamide, vitriol oil and initiator dibenzoyl peroxide (BPO) is 1:30:0.1:1, transfer the solution into a polytetrafluoroethylene hydrothermal reactor, and place it in the reactor heating box, heat to 120°C, react for 6h, cool the solution to room temperature, filter to remove the solvent, and then The solid product was washed with an appropriate amount of distilled water and absolute ethanol, and fully dried to obtain hyperbranched polyacry...
Embodiment 2
[0037] (1) Preparation of hyperbranched polyacrylate 2: Pass high-purity N into the reaction bottle 2 , add an appropriate amount of distilled water and acetone as a mixed solvent, the volume ratio of the two is 2:1, then add triethanolamine and acrylamide in sequence, stir evenly, add catalyst concentrated sulfuric acid, adjust the pH to 11, and heat the reaction bottle to 80 °C, Stirring and reflux reaction at a uniform speed for 8h, then slowly add initiator dibenzoyl peroxide (BPO), the amount mol ratio of the four of triethanolamine, acrylamide, vitriol oil and initiator dibenzoyl peroxide (BPO) is 1:30:0.1:1, transfer the solution into a polytetrafluoroethylene hydrothermal reactor, and place it in the reactor heating box, heat to 120°C, react for 6h, cool the solution to room temperature, filter to remove the solvent, and then The solid product was washed with an appropriate amount of distilled water and absolute ethanol, and fully dried to obtain hyperbranched polyacry...
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Abstract
The invention relates to the technical field of photocatalytic degradation materials, and discloses an Ag-loaded WO 3 Nanofiber-porous carbon photocatalytic material and its preparation method, including the following formula raw materials: hyperbranched polymer-based porous carbon, ammonium metatungstate, ammonium dihydrogen phosphate, sodiumsulfide nonahydrate, silver nitrate. In summary, this kind of Ag loaded WO 3 Nanofiber-porous carbon photocatalytic material and its preparation method, Ag 3 PO 4 Doping suppresses WO 3 Overgrowth of crystalline form, Ag 2 S loads evenly to WO 3 Nanofibers formed on the surface of the Ag 2 The agglomeration of S into large particles increases the light absorption efficiency of photocatalytic materials, WO 3 As a Z-type energy band heterojunction carrier, which reduces the recombination of photogenerated electrons and holes, the hyperbranched polymer-based porous carbon material has a huge specific surface area and rich pore structure, which can make Ag load WO 3 The nanofibers are uniformly loaded and dispersed, and their rich pore structure can adsorb heavy metals and their ions, by-products generated by organic photodegradation.
Description
technical field [0001] The invention relates to the technical field of photocatalytic degradation materials, specifically an Ag-loaded WO 3 Nanofiber-porous carbon photocatalytic material and its preparation method. Background technique [0002] Water is the source of life, a necessary condition for the existence of life and economic development, and an important component of human tissue. my country is a country with a shortage of water resources and frequent water disasters. Although the total amount of water resources ranks sixth in the world, but The per capita occupancy is only 2,400 cubic meters, which is about 1 / 5 of the world's per capitawater volume. It is one of the water-poor countries. More than 80% of people in my country drink shallow wells and river water. Most of the water sources are seriously polluted and exceed hygienic standards. Over the years, the quality of my country's water resources has continued to decline, the water environment has continued to de...
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