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Preparation method of calcium phosphate loaded indium phosphate catalyst

An indium phosphate catalyst, calcium phosphate technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve problems such as easy falling off, catalyst loss, etc., and achieve firm bonding, increased specific surface area, Not easy to fall off effect

Inactive Publication Date: 2017-11-03
柳州若思纳米材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Calcium phosphate is a common porous material that can be used as a catalyst carrier, but its general loading mechanism is by directly covering the surface of the carrier, and this contact is physical contact, which is easy to fall off and cause catalyst loss

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A preparation method of calcium phosphate supported indium phosphate catalyst, comprising the following steps:

[0017] Take 25mL from the newly prepared sodium tripolyphosphate solution with a concentration of 0.5mol / L and 100mL, and then add 15mL of calcium chloride with a concentration of 0.1mol / L dropwise to the sodium tripolyphosphate solution while stirring at 250r / s solution; after the first drop is completed, 5 mL of indium chloride solution with a concentration of 0.1 mol / L and 5 mL of calcium chloride solution with a concentration of 0.1 mol / L are added dropwise at the same time, and after the second drop is completed, stir for another 50 min ; Finally, centrifuge, wash the solid with distilled water three times, and dry it at 103°C to obtain a calcium phosphate-supported indium phosphate catalyst.

[0018] Application test 1

[0019] Add 0.8g of the prepared calcium phosphate-supported indium phosphate photocatalyst into 300mL of acidic red wastewater with a...

Embodiment 2

[0021] A preparation method of calcium phosphate supported indium phosphate catalyst, comprising the following steps:

[0022] Take 40mL of the newly prepared sodium tripolyphosphate solution with a concentration of 1mol / L and 100mL, and then add 20mL of calcium chloride solution with a concentration of 0.4mol / L dropwise to the sodium tripolyphosphate solution while stirring at a speed of 450r / s. After the first drop is completed, add 15 mL of indium chloride solution and 15 mL of 0.4 mol / L calcium chloride solution at the same time, after the second drop, stir for another 70 min; Finally, centrifuge, wash the solid with distilled water for 4 times, and dry it at 105° C. to obtain the calcium phosphate-supported indium phosphate catalyst.

[0023] Application test 2

[0024] Add 0.8 g of the prepared calcium phosphate-supported indium phosphate into 300 mL of Jincheng 7 wastewater with a concentration of 40 mg / L, react for 30 minutes under the irradiation of a 120W LED lamp, ...

Embodiment 3

[0026] A preparation method of calcium phosphate supported indium phosphate catalyst, comprising the following steps:

[0027] Take 35mL from the newly configured sodium tripolyphosphate solution with a concentration of 0.8mol / L and 100mL, and then add 18mL of calcium chloride with a concentration of 0.3mol / L dropwise to the sodium tripolyphosphate solution while stirring at a speed of 380r / s solution; after the first drop is completed, 10 mL of indium chloride solution with a concentration of 0.3 mol / L and 10 mL of calcium chloride solution with a concentration of 0.3 mol / L are added dropwise at the same time, and after the second drop is completed, stir for another 60 min ; Finally, centrifuge, wash the solid with distilled water three times, and dry it at 104°C to obtain the calcium phosphate-supported indium phosphate catalyst.

[0028] Application test 3

[0029] Add the obtained 0.8g of calcium phosphate-loaded indium phosphate into 300mL of rose bengal B wastewater wit...

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PUM

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Abstract

The invention discloses a preparation method of a calcium phosphate loaded indium phosphate catalyst. The preparation method comprises the following steps of: stirring at a rotating speed of 250-450r / s, dropwise adding a calcium chloride solution into a newly prepared sodium tripolyphosphate solution, adding an indium chloride solution at the same time, continuing to stir for 50-70min after dropwise adding is finished, performing centrifugal separation, washing a solid with distilled water, and drying the solid to prepare the calcium phosphate loaded indium phosphate catalyst. The loading is neither common grinding and mixing, nor simple surface deposition, but is combination of phosphate radicals and indium ions in a carrier body; an indium phosphate crystal is formed on the surface; the combination is firm; indium phosphate does not fall easily; the specific surface area is increased; and a better catalytical effect can be obtained.

Description

technical field [0001] The invention relates to a preparation method of a calcium phosphate-supported indium phosphate catalyst, which belongs to the technical field of sewage treatment in environmental protection. Background technique [0002] Traditional water treatment methods have problems such as low efficiency, high cost, and secondary pollution, and sewage treatment has not been well resolved. The development and application of nanotechnology is likely to completely solve this problem. TiO was discovered in 1972 2 High oxidation activity, good chemical stability, non-toxic to the human body, low cost, no pollution, wide application range, so it is the most important, but TiO 2 The bandgap width is large (such as anatase TiO 2 The forbidden band width Eg=3.2eV), can only absorb the light in the ultraviolet region (wavelength less than 387nm), and the utilization efficiency of solar energy is low. [0003] Semiconductor photocatalysis is one of the most promising ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/18
CPCB01J27/1811B01J35/39
Inventor 程昊白大伟郝光明史智鹏
Owner 柳州若思纳米材料科技有限公司
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