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G-C3N4/ZnO/Attapulgite Composite Photocatalytic Nanomaterial and Preparation Method and Application Thereof

A technology of composite photocatalysis and mineral materials, applied in the field of g-C3N4/ZnO/attapulgite composite photocatalytic nano-mineral materials and its preparation, to achieve obvious degradation effect, low price and simple process

Inactive Publication Date: 2019-08-16
CHINA UNIV OF GEOSCIENCES (WUHAN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, at present, pure material semiconductor materials cannot guarantee high efficiency and have a large utilization rate of visible light at the same time, so doping with other substances is required to expand its response range to the visible spectrum.

Method used

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  • G-C3N4/ZnO/Attapulgite Composite Photocatalytic Nanomaterial and Preparation Method and Application Thereof
  • G-C3N4/ZnO/Attapulgite Composite Photocatalytic Nanomaterial and Preparation Method and Application Thereof
  • G-C3N4/ZnO/Attapulgite Composite Photocatalytic Nanomaterial and Preparation Method and Application Thereof

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preparation example Construction

[0034] Please refer to figure 1 , the present invention also provides the above-mentioned g-C 3 N 4 The preparation method of / ZnO / attapulgite composite photocatalytic nano mineral material comprises the following steps:

[0035] Step S1, preparing a zinc acetate dihydrate solution: weighing zinc acetate dihydrate and dissolving it in absolute ethanol to obtain a zinc acetate dihydrate solution;

[0036] Step S2, preparing the zinc acetate dihydrate / attapulgite composite solution: adding polyvinylpyrrolidone to the zinc acetate dihydrate solution while stirring, and then adding the attapulgite powder to obtain the zinc acetate dihydrate / attapulgite composite solution;

[0037] In step S2, the attapulgite raw stone is pre-treated to remove impurities to obtain attapulgite powder. The specific processing process is: weigh the attapulgite raw stone and put it into a three-head grinder to grind for 30 minutes, pass through a 200-mesh sieve, and then place it in a 200mL beaker. ...

Embodiment 1

[0043] Weigh 1.6463gZn(CH 3 COO) 2 2H 2 O in a beaker, add 150mL absolute ethanol to the beaker, in a water bath at 80°C, make Zn(CH 3 COO) 2 2H 2 O is completely dissolved in absolute ethanol solution to obtain 0.05mol / L zinc acetate dihydrate solution, cooled to room temperature and set aside; then weigh 1.200g of sodium hydroxide in a beaker, add 150mL of absolute ethanol in the same way, and Ultrasonic in an ultrasonic cleaner makes it dissolve and disperse evenly to obtain an ethanol solution of sodium hydroxide; add 1.6463g polyvinylpyrrolidone (PVP) to the zinc acetate dihydrate solution, and stir at a speed of 900r / min on a magnetic stirrer 20min, then add 0.2616 g of attapulgite powder, react to obtain dihydrate zinc acetate / attapulgite complex solution; move the ethanol solution of sodium hydroxide in the separatory funnel, control its dripping speed, make it add drop by drop to the In the stirred zinc acetate dihydrate / attapulgite complex solution, stir at a sp...

Embodiment 2

[0050] Weigh 1.6463gZn(CH 3 COO) 2 2H 2 O in a beaker, add 150mL absolute ethanol to the beaker, in a water bath at 80°C, make Zn(CH 3 COO) 2 2H 2 O is completely dissolved in absolute ethanol solution to obtain 0.05mol / L zinc acetate dihydrate solution, cooled to room temperature and set aside; then weigh 1.200g of sodium hydroxide in a beaker, add 150mL of absolute ethanol in the same way, and Ultrasonic in an ultrasonic cleaner makes it dissolve and disperse evenly to obtain an ethanol solution of sodium hydroxide; add 1.6463g polyvinylpyrrolidone (PVP) to the zinc acetate dihydrate solution, and stir at a speed of 900r / min on a magnetic stirrer 20min, then add 0.4069g attapulgite powder, react to obtain dihydrate zinc acetate / attapulgite complex solution; move the ethanol solution of sodium hydroxide into the separatory funnel, control its dripping speed, make it add drop by drop to the In the stirred state zinc acetate dihydrate / attapulgite complex solution, stir at ...

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Abstract

The invention provides a g-C3N4 / ZnO / attapulgite composite photocatalytic nano mineral material, which comprises the following raw materials: zinc acetate dihydrate, sodium hydroxide, polyvinylpyrrolidone, urea and attapulgite. The dosage of attapulgite is 1.95%-24.7% of the mass of zinc acetate dihydrate. The invention provides a preparation method of a the g-C3N4 / ZnO / attapulgite composite photocatalytic nano mineral material, the preparation method comprises the following steps: weighing the zinc acetate dihydrate and dissolving the zinc acetate dihydrate in absolute ethyl alcohol to obtain azinc acetate dihydrate solution. Adding the polyvinyl pyrrolidone into the zinc acetate dihydrate solution, stirring, and then adding the attapulgite powder to obtain a zinc acetate dihydrate / attapulgite composite solution; dropping an ethanol solution of the sodium hydroxide into the zinc acetate dihydrate / attapulgite composite solution, stirring, standing, centrifuging to obtain a precipitate,washing, drying, calcining, and grinding to obtain a ZnO / attapulgite composite sample. And mixing the ZnO / attapulgite composite sample with the urea, grinding and calcining to obtain the g-C3N4 / ZnO / attapulgite composite photocatalytic nano mineral material.

Description

technical field [0001] The invention relates to the technical field of water pollution treatment, in particular to a g-C 3 N 4 / ZnO / attapulgite composite photocatalytic nano-mineral material and its preparation method and application. Background technique [0002] In order to completely improve the current water pollution and hydrological environmental problems, it is necessary to develop efficient and economical water treatment and purification technologies. At present, my country's water pollution treatment methods mainly adopt three categories of methods: physical methods, chemical methods and biological methods. Physical methods and chemical methods will generate high costs in the process of treating water pollution, such as activated carbon adsorption method, this physical adsorption method is more effective in the process of wastewater treatment, but the construction and operation costs of this process are very high Expensive and cannot be popularized on a large sca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C02F1/30C02F101/36C02F101/38
CPCB01J27/24C02F1/30C02F2305/10C02F2101/36C02F2101/38C02F2101/40B01J35/39
Inventor 曾凡金吴卉高芝煜
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)