CN106378165A - Preparation method of yttrium oxide/silver phosphate composite catalyst - Google Patents
Preparation method of yttrium oxide/silver phosphate composite catalyst Download PDFInfo
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- CN106378165A CN106378165A CN201610911876.0A CN201610911876A CN106378165A CN 106378165 A CN106378165 A CN 106378165A CN 201610911876 A CN201610911876 A CN 201610911876A CN 106378165 A CN106378165 A CN 106378165A
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- silver
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- composite catalyst
- yttrium
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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
- B01J27/18—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 with metals other than Al or Zr
- B01J27/1802—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
- B01J27/1817—Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates with copper, silver or gold
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Abstract
The invention discloses a preparation method of an yttrium oxide/silver phosphate composite catalyst. The method sequentially comprises the following steps: dropwisely adding 3-6mL of 15-25 wt% ammonia water into 5mL of a 0.2-0.3 mol/L yttrium nitrate solution to obtain a yttrium hydroxide black colloidal solution; mixing 1mL of a silver nitrate solution and 1-10mL of a disodium hydrogen phosphate solution at the rotation speed of 350-400 rpm, and continuously stirring for 3-4 hours to generate silver phosphate, thereby forming a greenish yellow colloidal solution; and mixing the greenish yellow colloidal solution and black colloidal solution for 20-30 minutes by continuously stirring, drying, and calcinating at 600-800 DEG C to obtain the yttrium oxide silver/phosphate composite catalyst. The prepared catalyst has the advantages of uniform and stable compounding and high photodegradation treatment efficiency.
Description
Technical field
The present invention relates to novel environmental pollution control material field, more particularly, to a kind of yittrium oxide/silver phosphate composite catalyst
Preparation method.
Background technology
With scientific and technological development, the murder by poisoning organic pollution producing 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 because of its energy-conservation, height
Effect, contaminant degradation are thorough, non-secondary pollution advantage, have become a kind of emerging environmental improvement with important application prospect at present
Technology.In recent years, the development of new and effective visible-light photocatalyst becomes one of photocatalysis technology important research content,
Wherein there is the catalysis material of surface plasma resonance effect, because of its unique Surface Physical Chemistry property and efficiently visible
Light photocatalysis performance, becomes one of focus of research.
However, the visible-light photocatalysis material reported at present has higher photo-generated carrier recombination rate and poor mostly
Visible absorption, lead to its quantum efficiency relatively low.Therefore, develop new and effective visible-light photocatalysis material, expand quasiconductor
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 solving.
Content of the invention
The purpose of the present invention be for overcoming the shortcomings of photocatalytic pollutant degradation in prior art during, a kind of oxygen is provided
Change the preparation method of yttrium/silver phosphate composite catalyst.
For this reason, the invention provides technical scheme below, a kind of preparation method of yittrium oxide/silver phosphate composite catalyst,
In turn include the following steps：
1) the yttrium nitrate solution Deca 3～6mL mass fraction being 0.2～0.3mol/L in 5mL concentration is 15%～25%
Ammonia, obtain Yttrium trihydroxide black colloid solution；
2) weigh 20～24mmol silver nitrate, be configured to the silver nitrate solution of 20mmol/L, weigh 6.6～8mmol phosphoric acid
Disodium hydrogen, is configured to the disodium phosphate soln of 20mmol/L；
3) by silver nitrate solution 1mL and disodium phosphate soln 1～10mL, mixed under 350～400 revs/min of rotating speed
Close, continuously stirred 3～4h, generate silver phosphate and form yellow green colloid solution；
4) yellow green obtaining colloid solution and black colloid solution are mixed 20～30min under continuous stirring, dry
Calcine at 600～800 DEG C after obtaining, obtain a kind of yittrium oxide/silver phosphate composite catalyst.
Yttrium trihydroxide black colloid solution (positively charged) and yellow green phosphoric acid silver colloidal solution (negatively charged) institute during being somebody's turn to do
Electrically charged contrary, colloidal solid be combined with each other under electrostatic interaction, dispersed.Obtained catalyst is combined uniformly, stable,
Light degradation treatment effeciency is high.
Specific embodiment
To describe the present invention in detail with reference to embodiment, but the present invention is not limited to this.
Embodiment 1
The yttrium nitrate solution Deca 6mL mass fraction being 0.3mol/L in 5mL concentration is 25% ammonia, obtains hydroxide
Yttrium black colloid solution；Weigh 24mmol silver nitrate, be configured to the silver nitrate solution of 20mmol/L, weigh 8mmol phosphoric acid hydrogen two
Sodium, is configured to the disodium phosphate soln of 20mmol/L；By silver nitrate solution 1mL and disodium phosphate soln 10mL, 400
Rev/min rotating speed under mix, continuously stirred 4h, generate silver phosphate formed yellow green colloid solution；By the yellowish green coloring agent obtaining
Liquid solution and black colloid solution mix 30min under continuous stirring, dry and calcine at 800 DEG C after obtaining, obtain a kind of oxygen
Change yttrium/silver phosphate composite catalyst.
Yittrium oxide/silver phosphate the composite catalyst being obtained is used for processing the waste water containing gold orange II：0.5g yittrium oxide/phosphoric acid
Silver-colored composite catalyst is added in the waste water of gold orange II that 100mL concentration is 30mg/L, under 300w Metal halogen lamp irradiates, reaction
0.5h, percent of decolourization is 98.5%.
Embodiment 2
The yttrium nitrate solution Deca 3mL mass fraction being 0.2mol/L in 5mL concentration is 15% ammonia, obtains hydroxide
Yttrium black colloid solution；Weigh 20mmol silver nitrate, be configured to the silver nitrate solution of 20mmol/L, weigh 6.6mmol phosphoric acid hydrogen
Disodium, is configured to the disodium phosphate soln of 20mmol/L；By silver nitrate solution 1mL and disodium phosphate soln 1mL, 350
Rev/min rotating speed under mix, continuously stirred 3h, generate silver phosphate formed yellow green colloid solution；By the yellowish green coloring agent obtaining
Liquid solution and black colloid solution mix 20min under continuous stirring, dry and calcine at 600 DEG C after obtaining, obtain a kind of oxygen
Change yttrium/silver phosphate composite catalyst.
Yittrium oxide/silver phosphate the composite catalyst being obtained is used for processing wastewater containing methylene blue：0.5g yittrium oxide/phosphoric acid
Silver-colored composite catalyst is added in the methylene blue waste water that 100mL concentration is 30mg/L, under 300w Metal halogen lamp irradiates, reaction
0.5h, percent of decolourization is 98.7%.
Embodiment 3
The yttrium nitrate solution Deca 5mL mass fraction being 0.2mol/L in 5mL concentration is 20% ammonia, obtains hydroxide
Yttrium black colloid solution；Weigh 24mmol silver nitrate, be configured to the silver nitrate solution of 20mmol/L, weigh 8mmol phosphoric acid hydrogen two
Sodium, is configured to the disodium phosphate soln of 20mmol/L；By silver nitrate solution 1mL and disodium phosphate soln 8mL, 400 turns/
Mix under the rotating speed of minute, continuously stirred 4h, generate silver phosphate and form yellow green colloid solution；Will be molten for the yellow green obtaining colloid
Liquid and black colloid solution mix 25min under continuous stirring, dry and calcine at 700 DEG C after obtaining, obtain a kind of yittrium oxide/
Silver phosphate composite catalyst.
Yittrium oxide/silver phosphate the composite catalyst being obtained is used for processing the waste water of II containing gold orange：0.5g yittrium oxide/silver phosphate
Composite catalyst is added in the gold orange II waste water that 100mL concentration is 30mg/L, under 300w Metal halogen lamp irradiates, reacts 0.5h,
Percent of decolourization is 99.2%.
Claims (1)
1. a kind of yittrium oxide/silver phosphate composite catalyst preparation method it is characterised in that：
1) the yttrium nitrate solution Deca 3～6mL mass fraction being 0.2～0.3mol/L in 5mL concentration is 15%～25% ammonia
Water, obtains Yttrium trihydroxide black colloid solution；
2) weigh 20～24mmol silver nitrate, be configured to the silver nitrate solution of 20mmol/L, weigh 6.6～8mmol phosphoric acid hydrogen two
Sodium, is configured to the disodium phosphate soln of 20mmol/L；
3) by silver nitrate solution 1mL and disodium phosphate soln 1～10mL, mix under 350～400 revs/min of rotating speed, hold
Continuous stirring 3～4h, generates silver phosphate and forms yellow green colloid solution；
4) yellow green obtaining colloid solution and black colloid solution are mixed 20～30min under continuous stirring, drying obtains
Calcine at 600～800 DEG C afterwards, obtain a kind of yittrium oxide/silver phosphate composite catalyst.
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| CN201610911876.0A CN106378165B (en) | 2016-10-19 | 2016-10-19 | A kind of preparation method of yttrium oxide/silver orthophosphate composite catalyst |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881122A (en) * | 2017-03-30 | 2017-06-23 | 常州大学 | A kind of silver orthophosphate loads the preparation method of trbasic zinc phosphate photochemical catalyst |
| CN108097280A (en) * | 2017-12-29 | 2018-06-01 | 辽宁石油化工大学 | A kind of preparation method of silver orthophosphate compound phosphoric acid bismuth photochemical catalyst |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626647A (en) * | 2012-03-30 | 2012-08-08 | 常州大学 | Synthesizing method of playgouskite-loaded silver orthophosphate photochemical catalyst |
| US20160077069A1 (en) * | 2014-09-17 | 2016-03-17 | Korea Advanced Institute Of Science And Technology | Gas sensor and member using metal oxide semiconductor nanofibers including nanoparticle catalyst functionalized by bifunctional nano-catalyst included within apoferritin, and manufacturing method thereof |
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2016
- 2016-10-19 CN CN201610911876.0A patent/CN106378165B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102626647A (en) * | 2012-03-30 | 2012-08-08 | 常州大学 | Synthesizing method of playgouskite-loaded silver orthophosphate photochemical catalyst |
| US20160077069A1 (en) * | 2014-09-17 | 2016-03-17 | Korea Advanced Institute Of Science And Technology | Gas sensor and member using metal oxide semiconductor nanofibers including nanoparticle catalyst functionalized by bifunctional nano-catalyst included within apoferritin, and manufacturing method thereof |
Non-Patent Citations (3)
| Title |
|---|
| LIN LUO等: "Visible photocatalysis and photostability of Ag3PO4photocatalyst", 《APPLIED SURFACE SCIENCE》 * |
| 叶红勇等: "Y2O3 /Ag3VO4 复合可见光催化剂的制备及其光催化性能", 《中国稀土学报》 * |
| 马世昌: "《化学物质词典》", 30 April 1999, 陕西科学技术出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106881122A (en) * | 2017-03-30 | 2017-06-23 | 常州大学 | A kind of silver orthophosphate loads the preparation method of trbasic zinc phosphate photochemical catalyst |
| CN108097280A (en) * | 2017-12-29 | 2018-06-01 | 辽宁石油化工大学 | A kind of preparation method of silver orthophosphate compound phosphoric acid bismuth photochemical catalyst |
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| CN106378165B (en) | 2018-10-19 |
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