CN107029761A - A kind of preparation method of support type silver phosphate photocatalyst - Google Patents

A kind of preparation method of support type silver phosphate photocatalyst Download PDF

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Publication number
CN107029761A
CN107029761A CN201710201051.4A CN201710201051A CN107029761A CN 107029761 A CN107029761 A CN 107029761A CN 201710201051 A CN201710201051 A CN 201710201051A CN 107029761 A CN107029761 A CN 107029761A
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CN
China
Prior art keywords
silver
phosphoric acid
zinc
brush
sediment
Prior art date
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Pending
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CN201710201051.4A
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Chinese (zh)
Inventor
倪清卓
马建锋
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Changzhou University
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Changzhou University
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Priority to CN201710201051.4A priority Critical patent/CN107029761A/en
Publication of CN107029761A publication Critical patent/CN107029761A/en
Pending legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/14Phosphorus; Compounds thereof
    • B01J27/16Phosphorus; 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
    • B01J27/18Phosphorus; 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
    • B01J27/1802Salts or mixtures of anhydrides with compounds of other metals than V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, e.g. phosphates, thiophosphates
    • B01J27/1817Salts 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
    • B01J35/39
    • B01J35/59
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/30Treatment of water, waste water, or sewage by irradiation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/34Organic compounds containing oxygen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/36Organic compounds containing halogen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/38Organic compounds containing nitrogen
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • C02F2101/40Organic compounds containing sulfur
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2305/00Use of specific compounds during water treatment
    • C02F2305/10Photocatalysts

Abstract

The present invention discloses a kind of preparation method of the silver-colored photochemical catalyst of zinc sulphide compound phosphoric acid.In turn include the following steps:Zinc acetate and thioacetamide and cetyl trimethylammonium bromide are added in deionized water, stirring is to being completely dissolved, obtain mixed solution, mixed solution is transferred to water heating kettle and is placed in 105~140 DEG C of heated at constant temperature in baking oven, question response takes out water heating kettle after terminating, and naturally cools to and supernatant is discarded after room temperature, collects sediment, washing, freeze-day with constant temperature, obtain zinc sulfide powder;Silver nitrate solution and disodium phosphate soln are mixed, yellow green colloid substance is formed, phosphoric acid silver colloid is generated;Obtained zinc sulphate powder is added in phosphoric acid silver colloid, stirring, precipitation separation, washing, drying produce a kind of silver-colored photochemical catalyst of zinc sulphide compound phosphoric acid.Silver orthophosphate is effectively distributed without assembling, and in the smaller particle of vulcanization zinc surface formation, improve catalytic activity.It can make zinc sulphide that there is visible light catalytic effect.

Description

A kind of preparation method of support type silver phosphate photocatalyst
Technical field
The present invention relates to a kind of preparation method for being used to handle the support type silver phosphate photocatalyst of organic wastewater, belong to and urge Change field of material preparation.
Background technology
In the industrial wastewaters such as sanitary sewage, food processing and papermaking, contain carbohydrate, protein, grease, wooden The organic substances such as element.These materials, can be by the biological chemistry action of microorganism to suspend or dissolved state is present in sewage And decompose.Need to consume oxygen in its decomposable process, thus be referred to as oxygen consumption pollutant.This pollutant can cause molten in water Solve oxygen to reduce, the growth of influence fish and other aquatiles.After oxygen in water exhausts, organic matter carries out anaerobic digestion, production The bad smells such as raw hydrogen sulfide, ammonia and mercaptan, make water quality deterioration.
With the development of production, the murder by poisoning organic pollution produced 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, turn into 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 turns into an important research content in photocatalysis technology. In June, 2010, material research institution researcher has found that silver orthophosphate has the effect of photochemical catalyst, and photooxidation effect is It is more than the decades of times for being currently known various photochemical catalysts.Because its unique Surface Physical Chemistry property and efficient visible ray light are urged Change one of performance, focus as research.
But nanoparticles are easily reunited, surface area is greatly reduced after reunion, decreased effectiveness.Need to use appropriate carrier Or change catalyst macrostructure to obtain preferable catalytic effect.
The content of the invention
The purpose of the present invention be for overcome in the prior art particulate matter be easy to reunion and cause effect difference etc. not enough there is provided one kind The preparation method of support type silver phosphate photocatalyst.
The technical solution adopted by the present invention is in turn include the following steps:
1) in 10~30cm2It is molten that clean Quartz glass surfaces dip in the styrene ethanol that concentration is 2~6mol/L with brush Liquid brush places 10~12h, then one layer of brush in atmosphere in quartz glass both side surface after drying naturally, then after drying naturally Place 10~12h in atmosphere, then one layer of brush, 4~5 layers of brush altogether per side obtain a layers of polymer in quartz glass both side surface Styrene;
2) quartz glass is placed in Muffle furnace, under nitrogen protection, is progressively warming up to 400~550 DEG C, and keep being somebody's turn to do 1~2h of temperature, is made the quartz glass of carbon-coating covering;
3) 20~24mmol silver nitrates are weighed, 20mmol/L silver nitrate solution is configured to, 6.6~8mmol phosphoric acid is weighed Disodium hydrogen, is configured to 20mmol/L disodium phosphate soln;
4) both the above solution is mixed under 350~400 revs/min of rotating speed, forms yellow green colloid substance, continued 3~4h is stirred, disodium hydrogen phosphate and nitric acid silver reaction in whipping process generate phosphoric acid silver colloid;
5) phosphoric acid silver colloid brush is dipped with brush in both side surface of the quartz glass covered with carbon-coating, after drying naturally again One layer of brush, then one layer of brush again after drying naturally, 4~5 layers of brush altogether per side, thin layer phosphorus is obtained on quartz glass carbon-coating surface Sour Argent grain, is made support type silver phosphate photocatalyst.
The beneficial effects of the invention are as follows:
After Quartz glass surfaces obtain polystyrene film by the method for rendering, high temperature cabonization, acquisition carbon-coating, and Accelerate electron transmission using colloidal property formation catalyst film, obtain preferable degradation effect in carbon-coating surface.
Embodiment
3 embodiments of the present invention are provided further below:
Embodiment 1
In 30cm2Clean Quartz glass surfaces dip in styrene ethanol solution brush that concentration is 6mol/L with brush in quartz Glass both side surface, places 12h, then one layer of brush in atmosphere after drying naturally, then places in atmosphere after drying naturally 12h, then one layer of brush, per side 5 layers of brush altogether, the styrene of a layers of polymer is obtained in quartz glass both side surface;By the quartzy glass Glass is placed in Muffle furnace, under nitrogen protection, is progressively warming up to 550 DEG C, and keeps temperature 2h, and the quartz of carbon-coating covering is made Glass;24mmol silver nitrates are weighed, 20mmol/L silver nitrate solution is configured to, 8mmol disodium hydrogen phosphates is weighed, is configured to 20mmol/L disodium phosphate soln;Both the above solution is mixed under 400 revs/min of rotating speed, yellowish green coloring agent is formed Shape material, persistently stirs 4h, disodium hydrogen phosphate and nitric acid silver reaction in whipping process, generates phosphoric acid silver colloid;Dipped in brush Phosphoric acid silver colloid brush is taken in both side surface of the quartz glass covered with carbon-coating, one layer of the brush, then dry naturally again after drying naturally One layer of brush again afterwards, 5 layers of brush altogether per side, obtains thin layer phosphoric acid Argent grain on quartz glass carbon-coating surface, support type is made Silver phosphate photocatalyst.
Obtained support type silver phosphate photocatalyst is used to handle waste water containing acid scarlet:By obtained support type phosphoric acid Silver-colored photochemical catalyst is placed in the waste water containing acid scarlet that pending 50mL concentration is 20mg/L, and light is penetrated in phosphoric acid silver surface, Under the irradiation of 300W Metal halogen lamps, 40min is reacted, percent of decolourization is 97.9%.
Embodiment 2
In 10cm2Clean Quartz glass surfaces dip in styrene ethanol solution brush that concentration is 2mol/L with brush in quartz Glass both side surface, places 10h, then one layer of brush in atmosphere after drying naturally, then places in atmosphere after drying naturally 10h, then one layer of brush, per side 4 layers of brush altogether, the styrene of a layers of polymer is obtained in quartz glass both side surface;By the quartzy glass Glass is placed in Muffle furnace, under nitrogen protection, is progressively warming up to 400 DEG C, and keeps temperature 1h, and the quartz of carbon-coating covering is made Glass;20mmol silver nitrates are weighed, 20mmol/L silver nitrate solution is configured to, 6.6mmol disodium hydrogen phosphates is weighed, is configured to 20mmol/L disodium phosphate soln;Both the above solution is mixed under 350 revs/min of rotating speed, yellowish green coloring agent is formed Shape material, persistently stirs 3h, disodium hydrogen phosphate and nitric acid silver reaction in whipping process, generates phosphoric acid silver colloid;Dipped in brush Phosphoric acid silver colloid brush is taken in both side surface of the quartz glass covered with carbon-coating, one layer of the brush, then dry naturally again after drying naturally One layer of brush again afterwards, 4 layers of brush altogether per side, obtains thin layer phosphoric acid Argent grain on quartz glass carbon-coating surface, support type is made Silver phosphate photocatalyst.
Obtained support type silver phosphate photocatalyst is used to handle wastewater containing methylene blue:By obtained support type phosphoric acid Silver-colored photochemical catalyst is placed in the wastewater containing methylene blue that pending 50mL concentration is 20mg/L, light irradiation in phosphoric acid silver surface, Under the irradiation of 300W Metal halogen lamps, 40min is reacted, percent of decolourization is 96.5%.
Embodiment 3
In 20cm2Clean Quartz glass surfaces dip in styrene ethanol solution brush that concentration is 4mol/L with brush in quartz Glass both side surface, places 12h, then one layer of brush in atmosphere after drying naturally, then places in atmosphere after drying naturally 12h, then one layer of brush, per side 5 layers of brush altogether, the styrene of a layers of polymer is obtained in quartz glass both side surface;By the quartzy glass Glass is placed in Muffle furnace, under nitrogen protection, is progressively warming up to 550 DEG C, and keeps temperature 2h, and the quartz of carbon-coating covering is made Glass;24mmol silver nitrates are weighed, 20mmol/L silver nitrate solution is configured to, 8mmol disodium hydrogen phosphates is weighed, is configured to 20mmol/L disodium phosphate soln;Both the above solution is mixed under 350 revs/min of rotating speed, yellowish green coloring agent is formed Shape material, persistently stirs 4h, disodium hydrogen phosphate and nitric acid silver reaction in whipping process, generates phosphoric acid silver colloid;Dipped in brush Phosphoric acid silver colloid brush is taken in both side surface of the quartz glass covered with carbon-coating, one layer of the brush, then dry naturally again after drying naturally One layer of brush again afterwards, 4 layers of brush altogether per side, obtains thin layer phosphoric acid Argent grain on quartz glass carbon-coating surface, support type is made Silver phosphate photocatalyst.
Obtained support type silver phosphate photocatalyst is used to handle and contains rhodamine B:By obtained support type phosphoric acid Silver-colored photochemical catalyst is placed in pending 50mL concentration containing in rhodamine B for 20mg/L, light irradiation in phosphoric acid silver surface, Under the irradiation of 300W Metal halogen lamps, 40min is reacted, percent of decolourization is 96.5%.

Claims (1)

1. the preparation method of the silver-colored photochemical catalyst of a kind of zinc sulphide compound phosphoric acid, it is characterized in that in turn including the following steps:
1) 1~5g zinc acetates and 3~20g thioacetamides and 0.5~1.2g cetyl trimethylammonium bromides are added to 40~ In 80mL deionized waters, stir to being completely dissolved, obtain mixed solution, mixed solution is transferred into water heating kettle is placed in baking oven 105~140 DEG C of 24~36h of heated at constant temperature, question response takes out water heating kettle after terminating, naturally cools to and supernatant is discarded after room temperature, Collect sediment;
2) above-mentioned sediment is washed each 3~4 times with deionized water and absolute ethyl alcohol respectively, by the sediment after washing 50~ Freeze-day with constant temperature at 70 DEG C, obtains zinc sulfide powder;
3) 20~24mmol silver nitrates are weighed, 20mmol/L silver nitrate solution is configured to, 6.6~8mmol phosphoric acid hydrogen two is weighed Sodium, is configured to 20mmol/L disodium phosphate soln;
4) both the above solution is mixed under 350~400 revs/min of rotating speed, forms yellow green colloid substance, lasting stirring 3~4h, disodium hydrogen phosphate and nitric acid silver reaction in whipping process generate phosphoric acid silver colloid;
5) obtained zinc sulphate powder is added in phosphoric acid silver colloid, stirs 3~4h, precipitation separation is washed with deionized Sediment 4~5 times, will be dried at 105 DEG C of sediment after washing, produce a kind of silver-colored photochemical catalyst of zinc sulphide compound phosphoric acid.
CN201710201051.4A 2017-03-30 2017-03-30 A kind of preparation method of support type silver phosphate photocatalyst Pending CN107029761A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115475635A (en) * 2022-10-12 2022-12-16 华东师范大学 Photocatalytic device with silver phosphate loaded in transparent medium tube and preparation method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103506142A (en) * 2013-10-08 2014-01-15 江苏大学 Molybdenum disulfide/silver phosphate composite visible light photocatalytic material and preparation method thereof
CN103623803A (en) * 2012-08-30 2014-03-12 上海纳晶科技有限公司 Visible light photocatalyst and preparation method therefor
CN104324740A (en) * 2014-10-11 2015-02-04 武汉理工大学 Flower-shaped MoS2 loaded Ag3PO4 nanosphere composite visible light catalyst and preparation method thereof
CN104437548A (en) * 2013-09-12 2015-03-25 华东师范大学 Visible light photocatalytic film and preparation method thereof and lighting lamp with visible light photocatalytic film
CN105170165A (en) * 2015-09-07 2015-12-23 武汉理工大学 Flake Ag2S-loaded Ag3PO4 nano-sphere composite visible light catalyst and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103623803A (en) * 2012-08-30 2014-03-12 上海纳晶科技有限公司 Visible light photocatalyst and preparation method therefor
CN104437548A (en) * 2013-09-12 2015-03-25 华东师范大学 Visible light photocatalytic film and preparation method thereof and lighting lamp with visible light photocatalytic film
CN103506142A (en) * 2013-10-08 2014-01-15 江苏大学 Molybdenum disulfide/silver phosphate composite visible light photocatalytic material and preparation method thereof
CN104324740A (en) * 2014-10-11 2015-02-04 武汉理工大学 Flower-shaped MoS2 loaded Ag3PO4 nanosphere composite visible light catalyst and preparation method thereof
CN105170165A (en) * 2015-09-07 2015-12-23 武汉理工大学 Flake Ag2S-loaded Ag3PO4 nano-sphere composite visible light catalyst and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115475635A (en) * 2022-10-12 2022-12-16 华东师范大学 Photocatalytic device with silver phosphate loaded in transparent medium tube and preparation method
CN115475635B (en) * 2022-10-12 2023-06-23 华东师范大学 Photocatalytic device for loading silver phosphate in transparent medium tube and preparation method

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Application publication date: 20170811