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Surface plasma nano-photocatalytic material as well as preparation method and application thereof

A technology of surface plasmons and catalytic materials, applied in the field of nano-photocatalytic materials, to achieve a wide range of photoresponse, ensure stability, and inhibit photocorrosion and decomposition

Inactive Publication Date: 2017-07-07
TAIYUAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But currently about Ag 3 PO 4 The application of surface plasmon nanomaterials composited with AgCl in photocatalysis has not been reported yet

Method used

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  • Surface plasma nano-photocatalytic material as well as preparation method and application thereof
  • Surface plasma nano-photocatalytic material as well as preparation method and application thereof
  • Surface plasma nano-photocatalytic material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Ag 3 PO 4 Preparation: Weigh 1.275g NaH 2 PO 4 , dissolved in 50 ml of water, after being completely dissolved, 50 ml of AgNO with a concentration of 0.3 M was added dropwise under mechanical stirring 3 solution, and continued to stir for 5 hours at room temperature to obtain the photocatalyst Ag 3 PO 4 , washing with deionized water until the pH value of the washing solution is 6-7;

[0034] (2) Ag 3 PO 4 Preparation of / AgCl: to the Ag prepared in (1) 3 PO 488 ml of 0.1 M NaCl solution was added dropwise. Ag 3 PO 4 It is not only a template for the reaction but also provides Ag ions, through ion exchange in Ag 3 PO 4 AgCl is formed on the surface, which effectively strengthens the Ag 3 PO 4 stability. After stirring for 15 minutes, the obtained solution was centrifuged, washed with deionized water until the pH value of the washing solution was 6-7, and dried in a drying oven at 75°C to obtain the composite photocatalytic material Ag 3 PO 4 / AgCl-...

Embodiment 2

[0037] (1) Ag 3 PO 4 Preparation: weigh 1.1g NaH 2 PO 4 , dissolved in 50 ml of water, after being completely dissolved, 50 ml of AgNO with a concentration of 0.3 M was added dropwise under mechanical stirring 3 solution, and continued to stir for 5 hours at room temperature to obtain the photocatalyst Ag 3 PO 4 , washing with deionized water until the pH value of the washing solution is 6-7;

[0038] (2) Ag 3 PO 4 Preparation of / AgCl: to the Ag prepared in (1) 3 PO 4 70 ml of 0.1 M NaCl solution was added dropwise. Ag 3 PO 4 It is not only a template for the reaction but also provides Ag ions, through ion exchange in Ag 3 PO 4 AgCl is formed on the surface, which effectively strengthens the Ag 3 PO 4 stability. After stirring for 15 minutes, the obtained solution was centrifuged, washed with deionized water until the pH value of the washing solution was 6-7, and dried in a drying oven at 75°C to obtain the composite photocatalytic material Ag 3 PO 4 / AgCl-2...

Embodiment 3

[0041] (1) Ag 3 PO 4 Preparation: Weigh 0.8g NaH 2 PO 4 , dissolved in 50 ml of water, after being completely dissolved, 50 ml of AgNO with a concentration of 0.3M was added dropwise under mechanical stirring 3 solution, and continued to stir for 5 hours at room temperature to obtain the photocatalyst Ag 3 PO 4 , washing with deionized water until the pH value of the washing solution is 6-7;

[0042] (2) Ag 3 PO 4 Preparation of / AgCl: to the Ag prepared in (1) 3 PO 4 Add 60 ml of 0.1 M NaCl solution dropwise. Ag 3 PO 4 It is not only a template for the reaction but also provides Ag ions, through ion exchange in Ag 3 PO 4 AgCl is formed on the surface, which effectively strengthens the Ag 3 PO 4 stability. After stirring for 15 minutes, the obtained solution was centrifuged, washed with deionized water until the pH value of the washing solution was 6-7, and dried in a drying oven at 75°C to obtain the composite photocatalytic material Ag 3 PO 4 / AgCl-3;

[0...

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Abstract

The invention discloses a surface plasma nano-photocatalytic material as well as a preparation method and application thereof. The surface plasma nano-photocatalytic material contains the following components in percentage by weight: 62%-94% of Ag3PO4 and 6%-38% of AgCl. The preparation method comprises the following steps: firstly adequately dissolving NaH2PO4 into deionized water, dropwise adding an AgNO3 solution in a mechanism stirring state, continuing to stir so as to obtain a photocatalyst Ag3PO4, and washing with deionized water; then dropwise adding an NaCl solution; and carrying out centrifugal separation on an obtained solution, washing with deionized water, and drying, so as to obtain the photocatalytic material Ag3PO4 / AgCl. By virtue of a plasma resonance effect of AgCl, the photocorrosion and decomposing of Ag3PO4 are effectively inhibited, and the stability and photocatalytic activity of Ag3PO4 under the illumination are improved. The preparation method is simple and relatively low in cost, and organic pollutants can be degraded through photocatalysis of visible light.

Description

technical field [0001] The invention relates to a surface plasmon nanometer photocatalytic material Ag 3 PO 4 / AgCl and its preparation method and application belong to the field of nanometer photocatalytic materials. Background technique [0002] Antiseptics and antimicrobials are widely used in personal care products and medical drugs. With the development of the economy, the use of nursing products and medicines by humans is gradually increasing, and the accumulation of preservatives and antibacterial agents contained in them is also increasing day by day in the human body and the environment. Due to their excellent antiseptic properties, parabens are widely used in personal care products such as toothpaste and perfume, as well as foods such as beverages and canned food. In addition, studies have found that parabens exhibit a certain degree of estrogenic activity, which may be one of the causes of breast cancer. Based on this, the Environmental Protection Agency class...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/18B01J35/02C02F1/30C02F101/30B01J35/00
CPCC02F1/30B01J27/1817C02F2101/30C02F2305/10B01J35/40B01J35/39
Inventor 史慧贤郭剑浩黄晓波唐宾
Owner TAIYUAN UNIV OF TECH
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