High-activity silver chloride convex crystal and preparation method thereof

A silver chloride, high-activity technology, applied in chemical instruments and methods, silver halide, chemical/physical processes, etc., can solve the problems of complex preparation methods of silver chloride, achieve simple synthesis methods and experimental steps, strong absorption, The effect of producing high yields

Inactive Publication Date: 2011-08-31
SHANDONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But the preparation method of its reported silver chloride is more complicated

Method used

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  • High-activity silver chloride convex crystal and preparation method thereof
  • High-activity silver chloride convex crystal and preparation method thereof
  • High-activity silver chloride convex crystal and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Measure 90ml deionized water and add it to the beaker, weigh 0.4g ionic liquid (C 16 MimCl) was added to the above-mentioned solution, and the ionic liquid was fully dissolved in water by constant stirring to form a homogeneous solution, and then 10ml of the solution containing 0.4g silver nitrate was quickly injected into the above-mentioned solution, and the constant stirring was used to make the uniform milky white solution. Put the mixture into a 120ml autoclave with a polytetrafluoroethylene liner, react at 160°C for 4 hours, cool to room temperature naturally, separate the sample by centrifugation, and wash the sample with deionized water and absolute ethanol respectively 3 After drying for 24 hours, the product silver chloride convex crystals were obtained. Take 0.2g of silver chloride curved surface crystal and put it into 100ml of deionized water, stir continuously for 1h under the irradiation of 500W xenon lamp, then filter, wash and dry in a vacuum box to for...

Embodiment 2

[0033] Measure 50ml of deionized water into the beaker, weigh 1g of ionic liquid (C 16 MimCl) was added to the above solution, stirring continuously to fully dissolve the ionic liquid, then measuring 10 ml of a solution containing 0.4 silver nitrate and injecting it into the above solution rapidly, stirring continuously to make the solution uniform. The mixture was put into a 100ml autoclave with a polytetrafluoroethylene liner, reacted at 160°C for 4 hours, cooled naturally to room temperature, centrifuged to separate the sample, and washed the sample 3 times with deionized water and absolute ethanol respectively, Vacuum dry for 24 hours.

[0034] attached Figure 4 It is the X-ray diffraction figure of this implementation gained product, know by figure, this product is the silver chloride crystal of pure cubic phase. attached Figure 5 Be the SEM picture of the product of this embodiment, by Figure 5 It can be seen that the size of said convex crystals of silver chlorid...

Embodiment 3

[0036] Measure 100ml deionized water into the beaker, weigh 0.4g ionic liquid (C 16 MimCl) was added to the above solution, stirring constantly to fully dissolve the ionic liquid, then weighing 0.4g of silver nitrate to dissolve in the above solution, stirring constantly to make the solution uniform. Put the mixture into a 120ml autoclave with a polytetrafluoroethylene liner, react at 140°C for 8h, cool down to room temperature naturally, separate the sample by centrifugation, and wash the sample 3 times with deionized water and absolute ethanol respectively , vacuum dried for 24h.

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Abstract

The invention relates to a high-activity silver chloride convex crystal and a preparation method thereof. The crystal has a convex bent crystal face. The preparation method comprises the following steps of: dissolving a chloric ionic solution to deionized water, fully stirring for 2-4h at a room temperature, then adding silver nitride to the stirred solution, stirring for 30-60min so that the solution is uniformly mixed, putting the mixed solution into a high pressure autoclave with a polytetrafluoroethylene liner, reacting for 1-8h at 120-160 DEG C, and then cooling, separating and drying to obtain the high-activity silver chloride convex crystal. In the invention, the synthesis method and the experimental steps are simple, the preparation yield is high, and the mass production can be achieved; the synthesized silver chloride convex crystal has the convex bent crystal face and higher surface activity; and a photocatalyst prepared from the silver chloride convex crystal has strong absorbability in a visible region and stronger photocatalysis activity.

Description

technical field [0001] The invention relates to a highly active silver chloride crystal, in particular to a highly active convex silver chloride crystal and a preparation method thereof, which can be used in the technical field of environmental protection for visible light degradation of organic pollutants. Background technique [0002] The development of emerging semiconductor photocatalytic technology provides mankind with a clean technology to control environmental pollution and solve energy shortages. Through photocatalytic technology, the use of solar energy can degrade organic pollutants and heavy metal pollutants in sewage, and can also provide hydrogen energy by photolysis of water. Therefore, photocatalytic technology has been paid more and more attention. However, at present, most of the photocatalytic technology is still in the basic research stage, mainly focusing on the preparation and exploration of visible light responsive materials. Silver chloride is a pho...

Claims

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Application Information

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IPC IPC(8): C01G5/02B01J27/10
Inventor 黄柏标娄在祝张晓阳秦晓燕
Owner SHANDONG UNIV
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