CN106391068B - A kind of preparation method of manganese oxide/yttrium phosphate composite catalyst - Google Patents
A kind of preparation method of manganese oxide/yttrium phosphate composite catalyst Download PDFInfo
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- CN106391068B CN106391068B CN201610911884.5A CN201610911884A CN106391068B CN 106391068 B CN106391068 B CN 106391068B CN 201610911884 A CN201610911884 A CN 201610911884A CN 106391068 B CN106391068 B CN 106391068B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
- B01J27/14—Phosphorus; Compounds thereof
- B01J27/16—Phosphorus; Compounds thereof containing oxygen, i.e. acids, anhydrides and their derivates with N, S, B or halogens without carriers or on carriers based on C, Si, Al or Zr; also salts of Si, Al and Zr
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
- C02F2101/308—Dyes; Colorants; Fluorescent agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/10—Photocatalysts
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Abstract
The present invention discloses a kind of preparation method of manganese oxide/yttrium phosphate composite catalyst, in turn includes the following steps：Under 40~60 DEG C of water-baths, a concentration of 0.2~0.8mol/L disodium phosphate solns of 10~15mL are added dropwise while stirring into the yttrium nitrate solution of a concentration of 0.1~0.5mol/L of 5~10mL, after stirring 60~100min, 3~6mL of manganese chloride solution of a concentration of 0.2~0.6mol/L is added, the sodium carbonate of a concentration of 0.05~0.08mol/L is added, 2~4h is stirred, is separated by solid-liquid separation, solid is washed with deionized 3~5 times, is dried at 105 DEG C；The product that drying obtains is calcined into 5~8h at 400~600 DEG C, you can obtain a kind of manganese oxide/yttrium phosphate composite catalyst.Obtained catalyst has preferable crystal structure and has larger specific surface area, stablizes, and light degradation treatment effeciency is high.
Description
Technical field
The present invention relates to novel environmental pollution control material field more particularly to a kind of manganese oxide/yttrium phosphate composite catalysts
Preparation method.
Background technology
With the development of science and technology, the murder by poisoning organic pollution generated in industrial and agricultural production seriously threatens environment and people
The health of class seeks a kind of new and effective environmental improvement technology and has great importance.Photocatalysis technology is energy saving, high because of its
Effect, contaminant degradation thoroughly, non-secondary pollution advantage, have become a kind of emerging environmental improvement with important application foreground at present
Technology.In recent years, the development of new and effective visible-light photocatalyst becomes an important research content in photocatalysis technology,
The wherein catalysis material with surface plasma resonance effect, because of its unique Surface Physical Chemistry property and efficient visible
Light photocatalysis performance, becomes one of hot spot of research.
However, the visible-light photocatalysis material reported at present has higher photo-generated carrier recombination rate and poor mostly
Visible absorption, cause its quantum efficiency relatively low.Therefore, new and effective visible-light photocatalysis material is developed, semiconductor is expanded
Material spectrum response range and promotion light induced electron and hole efficiently separate, and become current catalysis material research field and are badly in need of
The problem in science of solution.
Invention content
During to overcome the shortcomings of photocatalytic pollutant degradation in the prior art, a kind of oxygen is provided
Change the preparation method of manganese/yttrium phosphate composite catalyst.
For this purpose, the present invention provides following technical scheme, a kind of preparation method of manganese oxide/yttrium phosphate composite catalyst,
It in turn includes the following steps：
1) under 40~60 DEG C of water-baths, while stirring into the yttrium nitrate solution of a concentration of 0.1~0.5mol/L of 5~10mL
A concentration of 0.2~0.8mol/L disodium phosphate solns of 10~15mL are added dropwise, after stirring 60~100min, are added a concentration of 0.2
3~6mL of manganese chloride solution of~0.6mol/L adds 3~5mL of sodium carbonate of a concentration of 0.05~0.08mol/L, stirring 2
~4h is separated by solid-liquid separation, solid is washed with deionized 3~5 times, is dried at 105 DEG C；
2) product that drying obtains is calcined into 5~8h at 400~600 DEG C, you can it is multiple to obtain a kind of manganese oxide/yttrium phosphate
Close catalyst.
The present invention has following superiority：Yttrium phosphate solids in this process, then manganous hydroxide is grown on its surface, finally
By calcining, manganese oxide/yttrium phosphate composite catalyst is formed.Obtained catalyst has preferable crystal structure and has larger
Specific surface area is stablized, and light degradation treatment effeciency is high.
Specific implementation mode
With reference to embodiment, the present invention will be described in detail, but the present invention is not limited to this.
Embodiment 1
Under 60 DEG C of water-baths, it is a concentration of that 15mL is added dropwise while stirring into the yttrium nitrate solution of a concentration of 0.5mol/L of 10mL
0.8mol/L disodium phosphate solns are added the manganese chloride solution 6mL of a concentration of 0.6mol/L, add after stirring 100min
The sodium carbonate 5mL of a concentration of 0.08mol/L stirs 4h, is separated by solid-liquid separation, solid is washed with deionized 5 times, at 105 DEG C
Drying；The product that drying obtains is calcined into 8h at 600 DEG C, you can obtain a kind of manganese oxide/yttrium phosphate composite catalyst.
By manganese oxide obtained/yttrium phosphate composite catalyst for handling waste water containing acid scarlet：0.4g manganese oxide/phosphoric acid
Yttrium composite catalyst is added in the acid scarlet waste water of a concentration of 10mg/L of 50mL, under the irradiation of 300w Metal halogen lamps, reacts 1h,
Percent of decolourization is 93.5%.
Embodiment 2
Under 40 DEG C of water-baths, it is a concentration of that 10mL is added dropwise while stirring into the yttrium nitrate solution of a concentration of 0.1mol/L of 5mL
0.2mol/L disodium phosphate solns are added the manganese chloride solution 3mL of a concentration of 0.2mol/L, add dense after stirring 60min
Degree is the sodium carbonate 3mL of 0.05mol/L, stirs 2h, is separated by solid-liquid separation, solid is washed with deionized 3 times, is dried at 105 DEG C
It is dry；The product that drying obtains is calcined into 5h at 400 DEG C, you can obtain a kind of manganese oxide/yttrium phosphate composite catalyst.
By manganese oxide obtained/yttrium phosphate composite catalyst for handling wastewater containing methylene blue：0.4g manganese oxide/phosphoric acid
Yttrium composite catalyst is added in the methylene blue waste water of a concentration of 10mg/L of 50mL, under the irradiation of 300w Metal halogen lamps, reacts 1h,
Percent of decolourization is 93.8%.
Embodiment 3
Under 50 DEG C of water-baths, it is a concentration of that 10mL is added dropwise while stirring into the yttrium nitrate solution of a concentration of 0.4mol/L of 8mL
0.8mol/L disodium phosphate solns are added the manganese chloride solution 6mL of a concentration of 0.6mol/L, add after stirring 100min
The sodium carbonate 5mL of a concentration of 0.08mol/L stirs 4h, is separated by solid-liquid separation, solid is washed with deionized 5 times, at 105 DEG C
Drying；The product that drying obtains is calcined into 8h at 600 DEG C, you can obtain a kind of manganese oxide/yttrium phosphate composite catalyst.
By manganese oxide obtained/yttrium phosphate composite catalyst for handling the waste water of II containing gold orange：0.4g manganese oxide/yttrium phosphate
Composite catalyst is added in the gold orange II waste water of a concentration of 10mg/L of 100mL, under the irradiation of 300w Metal halogen lamps, is reacted 1h, is taken off
Color rate is 94.6%.
Claims (1)
1. a kind of preparation method of manganese oxide/yttrium phosphate composite catalyst, it is characterised in that：1) under 40~60 DEG C of water-baths, to 5
A concentration of 0.2~0.8mol/ of 10~15mL are added dropwise in the yttrium nitrate solution of a concentration of 0.1~0.5mol/L of~10mL while stirring
After stirring 60~100min, 3~6mL of manganese chloride solution of a concentration of 0.2~0.6mol/L is added in L disodium phosphate solns, then
3~5mL of sodium carbonate of a concentration of 0.05~0.08mol/L is added, stirs 2~4h, is separated by solid-liquid separation, solid is washed with deionized water
It washs 3~5 times, is dried at 105 DEG C；
2) the obtained product of drying is calcined into 5~8h at 400~600 DEG C, you can obtain that a kind of manganese oxide/yttrium phosphate is compound to urge
Agent.
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| CN101757937A (en) * | 2009-11-24 | 2010-06-30 | 江苏工业学院 | Titanium dioxide intercalation photocatalysed composite material and preparation method thereof |
| CN101898799A (en) * | 2010-07-28 | 2010-12-01 | 复旦大学 | Method for preparing lithium manganate hollow ball material |
| CN102600861A (en) * | 2012-03-26 | 2012-07-25 | 中国科学院生态环境研究中心 | Manganese-based composite oxide catalyst for catalytically decomposing ozone, and preparation method of manganese-based composite oxide catalyst |
| CN102941107A (en) * | 2012-11-27 | 2013-02-27 | 武汉工程大学 | Silver phosphate/titanium dioxide composite material for photochemical catalysis and preparation method thereof |
| CN103480400A (en) * | 2013-09-22 | 2014-01-01 | 江苏大学 | Silver phosphate/zinc oxide composite photocatalytic material and preparation method therefor |
| CN105126885A (en) * | 2015-08-31 | 2015-12-09 | 江苏大学 | Composite visible light photocatalytic material and preparation method and application thereof |
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2016
- 2016-10-19 CN CN201610911884.5A patent/CN106391068B/en active Active
Patent Citations (6)
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| CN101757937A (en) * | 2009-11-24 | 2010-06-30 | 江苏工业学院 | Titanium dioxide intercalation photocatalysed composite material and preparation method thereof |
| CN101898799A (en) * | 2010-07-28 | 2010-12-01 | 复旦大学 | Method for preparing lithium manganate hollow ball material |
| CN102600861A (en) * | 2012-03-26 | 2012-07-25 | 中国科学院生态环境研究中心 | Manganese-based composite oxide catalyst for catalytically decomposing ozone, and preparation method of manganese-based composite oxide catalyst |
| CN102941107A (en) * | 2012-11-27 | 2013-02-27 | 武汉工程大学 | Silver phosphate/titanium dioxide composite material for photochemical catalysis and preparation method thereof |
| CN103480400A (en) * | 2013-09-22 | 2014-01-01 | 江苏大学 | Silver phosphate/zinc oxide composite photocatalytic material and preparation method therefor |
| CN105126885A (en) * | 2015-08-31 | 2015-12-09 | 江苏大学 | Composite visible light photocatalytic material and preparation method and application thereof |
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| Synthesis and characterization of high efficiency and stable Ag3PO4/TiO2 visible light photocatalyst for the degradation of methylene blue and rhodamine B solutions;Weifeng Yao et al.;《Journal of Materials Chemistry》;20120125;第22卷;第4050-4055页 * |
| 介孔二氧化锰材料的制备及其电化学性能研究;杨加芹等;《南开大学学报》;20110831;第44卷(第4期);第98-102页 * |
| 金属磷酸盐在光催化材料中的研究进展;邵淑文等;《应用化学》;20160831;第45卷(第8期);第1571-1574页 * |
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