CN105600828B - A kind of porous nano CuFe2O4Preparation method - Google Patents

A kind of porous nano CuFe2O4Preparation method Download PDF

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Publication number
CN105600828B
CN105600828B CN201610008269.3A CN201610008269A CN105600828B CN 105600828 B CN105600828 B CN 105600828B CN 201610008269 A CN201610008269 A CN 201610008269A CN 105600828 B CN105600828 B CN 105600828B
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cufe
template
deionized water
stirring
copper
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CN105600828A (en
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刘福生
王小庆
曹佳伟
陈佳鑫
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Nanjing Forestry University
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Nanjing Forestry University
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    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00Compounds of iron
    • C01G49/0018Mixed oxides or hydroxides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/74Iron group metals
    • B01J23/745Iron
    • B01J35/39
    • B01J35/60

Abstract

The invention discloses a kind of porous nano CuFe2O4Preparation method, this method mixes molysite, mantoquita with deionized water, and stirring and dissolving obtains the mixed solution of molysite and mantoquita, alkali is mixed with deionized water, stirring and dissolving obtains aqueous slkali;The mixed solution of molysite and mantoquita is added dropwise in aqueous slkali under stirring, continues stirring reaction after dripping to the reaction was complete, product is washed, is centrifugally separating to obtain CuFe2O4Colloidal sol;CuFe2O4After colloidal sol is mixed with deionized water, disperse through ultrasonic wave, add organic solvent and sublimable compound template, reacted by the hot method of aqueous organic solvent mixed solvent, product is after being distilled off mixed solvent, fired, cooling, grinding, washing, filtering, dry and grinding technics process, that is, obtain porous nano CuFe2O4Powder.This method is simple for process, and investment is small, is conducive to promote and apply.

Description

A kind of porous nano CuFe2O4Preparation method
Technical field
The present invention relates to a kind of porous nano CuFe2O4Preparation method, belong to field of photocatalytic material.
Background technology
With the quickening of process of industrialization, energy crisis and environmental crisis getting worse, the exploitation of renewable new energy is standby It is concerned.Solar energy is inexhaustible, nexhaustible, pollution-free, cheap, world community can as a kind of clean energy resource The energy freely utilized peacefully, and various regenerative resources for example biomass energy, wind energy, ocean energy, water can etc. other energy it This.National governments all attach great importance to the exploitation of regenerative resource, and regenerative resource is the hot research field that various countries invest energetically.
Photochemical catalyst is the semi-conducting material of a kind of utilization solar energy indispensability.At present, by scientists study Semiconductor light-catalyst species is various, such as TiO2、CdS、SrTiO3、RuO2, ZnO and Fe2O3Deng.CuFe2O4Partly led as one kind Body photochemical catalyst, has the characteristics that good stability, indissoluble, environmental-friendly, band gap is narrow, aboundresources and application cost are low, especially When being with other semiconductors couplings, photocatalytic activity can be effectively improved, is one of the photochemical catalyst that application prospect is had an optimistic view of.
The structure of material and performance are closely related, structures shape performance, and the controllable preparation of material structure is material science neck The hot research direction in domain, is the important means for preparing high performance material.Grinding on nano material controllable method for preparing at present It is many to study carefully report.Since Penner in 1987 et al. proposes the template synthesis method of nano material, template is because having work Skill is simple and convenient to operate, low power consumption and other advantages, is had received widespread attention.Using template, by varying template diameter and Other technological parameters can obtain the controllable nano material of shapes and sizes.Nanocrystalline, nano thin-film is had been used at present, is partly led The preparation of the materials such as body, nanotube and nano wire, has consequence in field of nano material preparation, becomes preparation high-performance The important means of nano material.
CuFe2O4Nanosizing and porous are to improve CuFe2O4One of effective ways of photocatalysis efficiency.Prepare porous receive Rice CuFe2O4Can use template, template mainly have microemulsion template, emulsion template, ionic surfactant template, it is non-from Subtype surfactant templates, block copolymer template, composition template (such as polyoxyethylene lauryl ether and polyethylene glycol) With monodisperse polymer particles template etc..Pass through solgel reaction, CuFe2O4Colloidal sol forms bone with secondary bond and template action Frame structure, then takes solvent extraction or high-temperature roasting method to remove template, so as to obtain the hole suitable with template size.But It is to prepare porous nano CuFe using above-mentioned traditional template2O4When, template is either removed using roasting method or extraction All there are major defect.When roasting method removes template, since the temperature of template to be eliminated is high, caving in for duct can be caused, makes system Into porous nano CuFe2O4Semiconductor light-catalyst surface defect is too many, becomes the complex centre of electron-hole, reduces light and urges Change efficiency.Extraction rule is difficult to thoroughly eliminate template so that porous nano CuFe2O4The purity of semiconductor light-catalyst reduces, and leads Photocatalysis performance is caused to decline.Therefore, how to prepare duct without cave in, surface zero defect, template noresidue and high-specific surface area Porous nano CuFe2O4Semiconductor light-catalyst is an important topic.
Easily removed since sublimate easily distils, the present invention is by using the appropriate compound of sublimation temperature Template prepares CuFe2O4Colloidal sol, reheating make template distillation removing can be prepared by porous nano CuFe2O4.With traditional template Compare, the present invention use sublimate for template can preparation structure is controllable, duct without cave in, surface zero defect, template noresidue and The big porous nano CuFe of specific surface area2O4Semiconductor light-catalyst.At present, on being prepared by template of sublimable compound Porous nano CuFe2O4The method of semiconductor light-catalyst is there is not yet document report, is porous nano CuFe2O4Preparation open up One new way, has an important practical significance.
The content of the invention
A kind of porous nano CuFe of the present invention2O4Preparation method, there is provided it is a kind of with molysite, mantoquita, alkali, go from Sub- water is raw material, and CuFe is prepared by stirring reaction2O4Colloidal sol;CuFe2O4Colloidal sol is after ultrasonic disperse, by certain ratio Example adds organic solvent and sublimable compound template, and after the hot method reaction of water-organic solvent mixed solvent, product is through steaming Distillation removes mixed solvent, heats removing sublimable compound template, cooling, washing, drying and grinding technics process, i.e., Obtain porous nano CuFe2O4
A kind of porous nano CuFe of the present invention2O4Preparation method, obtained porous nano CuFe2O4, can Light and sunlight are seen under conditions of light source, to can be directly used for photocatalysis degradation organic contaminant and photocatalytic hydrogen production by water decomposition, Also the photochemical catalyst of active higher by the method with other semiconductors couplings, can further be made, in visible ray and sunlight Under conditions of light source, for photocatalysis degradation organic contaminant and photocatalytic hydrogen production by water decomposition;
A kind of porous nano CuFe of the present invention2O4Preparation method, adopt the following technical scheme that:
1st, it is by the mass percent of molysite, mantoquita, alkali, deionized water, organic solvent and sublimable compound template (0.001%~70%): (0.00001%~70%): (0.001%~65%): (0.001%~90%): (0.001%~ 90%): the ratio of (0.001%~90%), by a meromict of molysite, mantoquita and the total dosage of deionized water, stirring and dissolving obtains To molysite and the mixed solution of mantoquita, by another meromict of alkali and the total dosage of deionized water, stirring and dissolving obtains aqueous slkali, stirs The lower mixed solution by molysite and mantoquita is mixed to be added dropwise in aqueous slkali, continue after dripping stirring reaction 1~24h, product pass through from The heart separates and washing operation and in triplicate, then is centrifugally separating to obtain CuFe2O4Colloidal sol;By CuFe2O4Colloidal sol and deionized water After the ratio mixing that mass ratio is 1: 2~15, disperseed with the ultrasonic wave that frequency is 20KHz~1MHz, power is 30W~15KW 0.1h~24h, adds organic solvent and sublimable compound template, by water-hot method of organic solvent mixed solvent 100 0.5~24h is reacted at~250 DEG C, product heats up after mixed solvent is distilled off by 0.5~3 DEG C per minute of programming rate To 300~600 DEG C, heat 0.5~24h and remove sublimable compound template, then through cooling down, grinding, washing, filtering, Dry and grinding technics process, that is, obtain porous nano CuFe2O4Powder.
2nd, a kind of porous nano CuFe of the present invention2O4Preparation method, its outstanding feature is:Using traditional Microemulsion template, emulsion template, ionic surfactant template, nonionic surface active agent template, block copolymer mould Plate, composition template (such as polyoxyethylene lauryl ether and polyethylene glycol) and monodisperse polymer particles template template, lead to Crossing solgel reaction makes CuFe2O4Colloidal sol forms skeleton structure with secondary bond and template action, then take solvent extraction or When high-temperature roasting method removes template, all there are major defect, duct is such as caused to cave in, surface defect, specific surface area are low and template The problems such as residual, reduce photocatalysis efficiency;Compared with traditional template, during using sublimate as template, sublimate easily distils and holds Easily eliminate, therefore, CuFe is prepared for template by using the appropriate compound of sublimation temperature2O4Colloidal sol, reheats processing and removes liter Magnificent thing, go template can be prepared by structure-controllable, duct without cave in, that surface zero defect, template noresidue and specific surface area are big is more Hole nanometer CuFe2O4, be conducive to improve photocatalysis efficiency.
3rd, a kind of porous nano CuFe of the present invention2O4Preparation method, the molysite for reacting used be ferric trichloride, Any of ferric bromide, ferric sulfate, ferric nitrate, ferric formate, ferric acetate, ironic citrate and tartaric acid iron are a variety of.
4th, a kind of porous nano CuFe of the present invention2O4Preparation method, the mantoquita for reacting used is copper chloride, bromine Change any of copper, copper sulphate, copper nitrate, copper formate and copper acetate or a variety of.
5th, a kind of porous nano CuFe of the present invention2O4Preparation method, the alkali for reacting used is lithium hydroxide, hydrogen Any of sodium oxide molybdena, potassium hydroxide, ammonium hydroxide and barium hydroxide are a variety of.
6th, a kind of porous nano CuFe of the present invention2O4Preparation method, react sublimable compound mould used Plate is in 1,4-benzoquinone, melamine, iodine, hexa, camphor, anthraquinone, naphthalene, anthracene, metaformaldehyde and triethylamine hydrochloride It is any one or more.
7th, a kind of porous nano CuFe of the present invention2O4Preparation method, the organic solvent for reacting used be methanol, Ethanol, isopropanol, ether, isopropyl ether, formic acid, acetic acid, dichloromethane, chloroform, carbon tetrachloride, acetone, cyclohexanone, Methylethyl Any of ketone, benzene, toluene, methyl acetate, ethyl acetate, propyl acetate and isopropyl acetate are a variety of.
8th, a kind of porous nano CuFe of the present invention2O4Preparation method, porous nano CuFe2O4Preparation process In used ultrasonic disperser frequency be 20KHz~1MHz, power be 30W~15KW.
Embodiment
Here is a kind of porous nano CuFe of the present invention2O4Preparation method non-limiting example.These examples Be only given for illustrative purposes, limitation of the invention can not be interpreted as.Because the essence of the present invention is not being departed from God can carry out many conversion with the basis of scope to the present invention.In these embodiments, unless stated otherwise, it is all Percentage is all referring to mass percent.
Embodiment 1
Porous nano CuFe2O4Preparation:
According to above-mentioned mass percent, by ferric trichloride, ferric bromide, copper sulphate, copper bromide and the total dosage of deionized water One meromict, stirring and dissolving obtains the mixed solution of ferric trichloride, ferric bromide, copper sulphate and copper bromide, by potassium hydroxide with going Another meromict of the total dosage of ionized water, stirring and dissolving obtain potassium hydroxide solution, by ferric trichloride, ferric bromide, sulphur under stirring The mixed solution of sour copper and copper bromide is added dropwise in potassium hydroxide solution, continues stirring reaction 3h after dripping, product is through centrifugation Separation and washing operation and in triplicate, then it is centrifugally separating to obtain CuFe2O4Colloidal sol;By CuFe2O4The matter of colloidal sol and deionized water After amount is than the ratio mixing for 1: 5, disperses 2h with the ultrasonic wave that frequency is 28KHz, power is 2KW, add isopropanol, benzene, anthracene After quinone and hexa, 10h is reacted at 150 DEG C by water-hot method of organic solvent mixed solvent, product is through being distilled off After solvent, 450 DEG C are warming up to by 1 DEG C per minute of programming rate, heats 9h at 450 DEG C, removes anthraquinone and hexa-methylene After the sublimable compound template of tetramine, then through cooling down, grinding, washing, filtering, dry and grinding technics process, that is, obtain more Hole nanometer CuFe2O4Powder.
Embodiment 2
Porous nano CuFe2O4Preparation:
According to above-mentioned mass percent, by the one of ferric nitrate, ferric formate, copper formate and copper nitrate and the total dosage of deionized water Meromict, stirring and dissolving obtain the mixed solution of ferric nitrate, ferric formate, copper formate and copper nitrate, by sodium hydroxide and deionization Another meromict of the total dosage of water, stirring and dissolving obtain sodium hydroxide solution, under stirring by ferric nitrate, ferric formate, copper formate and The mixed solution of copper nitrate is added dropwise in sodium hydroxide solution, continues stirring reaction 2.5h after dripping, and product is centrifuged With washing operation and in triplicate, then it is centrifugally separating to obtain CuFe2O4Colloidal sol;By CuFe2O4The mass ratio of colloidal sol and deionized water After 1: 8 ratio mixing, disperse 2.5h with the ultrasonic wave that frequency is 68KHz, power is 3KW, add ethanol, toluene, to benzene After quinone and camphor, 7h is reacted at 160 DEG C by water-hot method of organic solvent mixed solvent, product is pressed after solvent is distilled off 0.5 DEG C per minute of programming rate is warming up to 480 DEG C, heats 10h at 480 DEG C, removes 1,4-benzoquinone and camphor is sublimable After compound template, then through cooling down, grinding, washing, filtering, dry and grinding technics process, that is, obtain porous nano CuFe2O4 Powder.
Embodiment 3
Porous nano CuFe2O4Preparation:
According to above-mentioned mass percent, by ferric sulfate, ironic citrate, copper chloride and copper acetate and the total dosage of deionized water One meromict, stirring and dissolving obtain the mixed solution of ferric sulfate, ironic citrate, copper chloride and copper acetate, by lithium hydroxide and hydrogen Barium monoxide and another meromict of the total dosage of deionized water, stirring and dissolving obtain lithium hydroxide and barium hydroxide mixed solution, stir Mix the lower mixed solution by ferric sulfate, ironic citrate, copper chloride and copper acetate be added dropwise to lithium hydroxide and barium hydroxide mixing it is molten In liquid, continue stirring reaction 1.5h after dripping, product is centrifuged with washing operation and in triplicate, then is centrifuged To CuFe2O4Colloidal sol;By CuFe2O4After the ratio mixing that colloidal sol and the mass ratio of deionized water are 1: 5, with frequency be 40KHz, The ultrasonic wave that power is 1.5KW disperses 1.5h, after adding ethyl acetate, methyl ethyl ketone, acetone, naphthalene, metaformaldehyde and anthracene, leads to Cross water-hot method of organic solvent mixed solvent and 12h is reacted at 170 DEG C, product is after being distilled off solvent, by 1.5 DEG C per minute Programming rate be warming up to 420 DEG C, heat 12h at 420 DEG C, remove naphthalene, metaformaldehyde and the sublimable compound mould of anthracene After plate, then through cooling down, grinding, washing, filtering, dry and grinding technics process, that is, obtain porous nano CuFe2O4Powder.
Embodiment 4
Porous nano CuFe2O4Preparation:
According to above-mentioned mass percent, by ferric trichloride and copper sulphate and a meromict of the total dosage of deionized water, stirring Dissolving obtains the mixed solution of ferric trichloride and copper sulphate, and another meromict of sodium hydroxide and the total dosage of deionized water is stirred Mix dissolving and obtain sodium hydroxide solution, the mixed solution of ferric trichloride and copper sulphate is added dropwise to sodium hydroxide solution under stirring In, continue stirring reaction 3.0h after dripping, product is centrifuged with washing operation and in triplicate, then is centrifugally separating to obtain CuFe2O4Colloidal sol;By CuFe2O4With frequency it is 50KHz, work(after the ratio mixing that colloidal sol and the mass ratio of deionized water are 1: 10 The ultrasonic wave that rate is 2.5KW disperses 1.0h, after adding ethanol and anthracene, by water-hot method of organic solvent mixed solvent at 180 DEG C 4h is reacted, product is warming up to 500 DEG C after solvent is distilled off, by 2 DEG C per minute of programming rate, heats at 500 DEG C 5h, after removing the sublimable compound template of anthracene, then through cooling down, grinding, washing, filtering, dry and grinding technics process, to obtain the final product To porous nano CuFe2O4Powder.

Claims (4)

  1. A kind of 1. porous nano CuFe2O4Preparation method, it is characterised in that:By trivalent iron salt, cupric salt, alkali, deionization The mass percent of water, organic solvent and sublimable compound template is (9.9%~13.0%): (4.2%~6.4%): (8.7%~13.8%): (49.2%~58.4%): (13.0%~20.0%): the ratio of (2.5%~3.2%), by trivalent One meromict of molysite, cupric salt and the total dosage of deionized water, stirring and dissolving obtain the mixing of trivalent iron salt and cupric salt Solution, by another meromict of alkali and the total dosage of deionized water, stirring and dissolving obtains aqueous slkali, by trivalent iron salt and two under stirring The mixed solution of valency mantoquita is added dropwise in aqueous slkali, continues stirring 1~24h of reaction after dripping, and product is centrifuged and washes Operation and in triplicate is washed, then is centrifugally separating to obtain CuFe2O4Colloidal sol;By CuFe2O4Colloidal sol and the mass ratio of deionized water are 1: 2~15 ratio is by the deionized water separately taken and CuFe2O4After colloidal sol mixing, with frequency be 20KHz~1MHz, power be 30W~ The ultrasonic wave of 15KW disperses 0.1h~24h, adds organic solvent and sublimable compound template, is mixed by water-organic solvent The hot method of bonding solvent reacts 0.5~24h at 100~250 DEG C, and product is after being distilled off mixed solvent, by per minute 0.5~3 DEG C programming rate be warming up to 300~600 DEG C, heat 0.5~24h and remove sublimable compound template, then through cooling, Grinding, washing, filtering, dry and grinding technics process, that is, obtain porous nano CuFe2O4Powder;
    Reaction sublimable compound template used be 1,4-benzoquinone, melamine, iodine, hexa, camphor, anthraquinone, Any of naphthalene, anthracene, metaformaldehyde and triethylamine hydrochloride are a variety of;
    Reaction organic solvent used be methanol, ethanol, isopropanol, ether, isopropyl ether, formic acid, acetic acid, dichloromethane, chloroform, Carbon tetrachloride, acetone, cyclohexanone, methyl ethyl ketone, benzene, toluene, methyl acetate, ethyl acetate, propyl acetate and isopropyl acetate Any of ester is a variety of.
  2. 2. the preparation method described in claim 1, it is characterised in that the trivalent iron salt for reacting used be ferric trichloride, ferric bromide, Any of ferric sulfate, ferric nitrate, ferric formate, ferric acetate, ironic citrate and tartaric acid iron are a variety of.
  3. 3. the preparation method described in claim 1, it is characterised in that the cupric salt for reacting used is copper chloride, copper bromide, sulphur Any of sour copper, copper nitrate, copper formate and copper acetate are a variety of.
  4. 4. the preparation method described in claim 1, it is characterised in that the alkali for reacting used is lithium hydroxide, sodium hydroxide, hydrogen-oxygen Change any of potassium, ammonium hydroxide and barium hydroxide or a variety of.
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CN107684914B (en) * 2017-08-14 2020-08-21 浙江工业大学 Magnetic Bi2MoO6/CuFe2O4Composite photocatalytic material and preparation method thereof
CN108341803A (en) * 2018-03-21 2018-07-31 新沂市中诺新材料科技有限公司 A kind of synthetic method of difenoconazole
CN108545779A (en) * 2018-06-26 2018-09-18 合肥萃励新材料科技有限公司 A kind of CuFeO2The synthetic method of nanostructure
CN111115600B (en) * 2018-10-30 2022-12-13 天津工业大学 Method for synthesizing hydroxyapatite Dan Aotu nano-rod with assistance of ethyl acetate
CN109569522B (en) * 2018-12-20 2020-03-31 吴荣臻 Iodine adsorption material and preparation method and application thereof
CN110002422A (en) * 2019-04-11 2019-07-12 南京中微纳米功能材料研究院有限公司 A kind of porous nano Na3V2(PO4)3Preparation method
CN110116001B (en) * 2019-05-24 2022-04-01 攀枝花学院 Copper ferrite photo-Fenton catalytic magnetic composite material and preparation method thereof
CN110127768A (en) * 2019-05-30 2019-08-16 何宏健 A kind of CuFe2O4The preparation method of ion battery electrode materials
CN112607785B (en) * 2020-12-23 2023-06-16 浙江理工大学 MnFe 2 O 4 C nano composite microsphere and preparation method thereof

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JP2008142575A (en) * 2005-03-28 2008-06-26 Tohoku Univ High performance catalyst using composite oxide and method for preparation thereof
CN101134599A (en) * 2007-07-23 2008-03-05 华东师范大学 Method for preparing nano ferrous acid copper
KR101064353B1 (en) * 2008-10-22 2011-09-14 서강대학교산학협력단 Silica Core/Magnetic Shell Particle Having Superparmagnetic Characters with Micron Scale And The Method of Thereof
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