CN103232089A - Method for carrying out photocatalytic degradation on waste water of explosives and powders based on magnetic carrier nano functional particles - Google Patents

Method for carrying out photocatalytic degradation on waste water of explosives and powders based on magnetic carrier nano functional particles Download PDF

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CN103232089A
CN103232089A CN2013101467098A CN201310146709A CN103232089A CN 103232089 A CN103232089 A CN 103232089A CN 2013101467098 A CN2013101467098 A CN 2013101467098A CN 201310146709 A CN201310146709 A CN 201310146709A CN 103232089 A CN103232089 A CN 103232089A
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CN103232089B (en
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王洁
彭林
曹昉
苏冰琴
时红
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Taiyuan University of Technology
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

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Abstract

The invention provides a method for carrying out photocatalytic degradation on waste water of explosives and powders based on magnetic carrier nano functional particles and solves the problems of the existing method for degrading the waste water of the explosives and powders that a degradation effect is undesirable, operation is complex, cost is higher, recycling is difficult and secondary pollution can be easily caused. The method provided by the invention comprises the following steps of: firstly preparing magnetic carrier nano functional particles, namely TiO2/SiO2/C/Fe3O4 particles, then adding the TiO2/SiO2/C/Fe3O4 particles into the waste water of the explosives and powders in proportion, and carrying out photocatalytic degradation on the waste water of the explosives and powders under irradiation of ultraviolet lights. According to the method, high-dispersion TiO2/SiO2/C/Fe3O4 magnetic carrier nano functional particles are utilized for realizing a magnetic control recyclable explosive and powder waste water photocatalytic degradation technology, degradation rate of the waste water of the explosives and powders can reach 63.24% under the irradiation of the ultraviolet lights, and magnetic control recycling can be carried out on the functional particles, so that secondary pollution is avoided.

Description

Carry the method for the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic
Technical field
The present invention relates to technical field of waste water processing, specifically is a kind of method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic.
Background technology
The fire explosive waste water has characteristics such as complicated component, quantity discharged are big, poisonous, and ecotope and Living organism are existed potential threat.Fire explosive waste water problem has become global problem of environmental pollution, and fiery explosive waste water need carry out degradation treatment before discharging, to reduce the harm that it was brought as far as possible.
At present, photocatalytic oxidation has remarkable advantages aspect the processing explosive waste water, photocatalytic oxidation is as a kind of high-level oxidation technology, it can utilize sunlight or near-ultraviolet light as radiating light source, make the pollutent mineralising at normal temperatures and pressures, processing cost reduces greatly, has advantages such as simple, quick, inexpensive, have bigger superiority than physics method and other chemical methods, therefore in field of waste water treatment extremely important status is arranged.Wherein, the photocatalyst with higher catalytic activity becomes the research focus of photocatalysis technology, for example TiO 2Photocatalyst, owing to it has the photocatalyst that good chemical stability, abrasion resistance, low cost, characteristics such as nontoxic become tool application potential, but TiO 2Photocatalyst is difficult to reclaim after handling fiery explosive waste water, has caused the waste of resource, the raising of processing cost.
Based on this, researching and developing a kind of efficient, controlled recovery, non-secondary pollution and the low Treatment by Photocatalysis Oxidation technology of cost just becomes the development trend that fiery explosive waste water is handled.
Summary of the invention
To the objective of the invention is to have problems in order solving in the above-mentioned prior art, and a kind of method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic to be provided.
The present invention is achieved by the following technical solutions:
A kind of method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic comprises the steps:
1., configuration concentration is 2mol/L FeCl 1), magnetic carries the preparation of nano functional particle: 3Solution, the extracting degreasing cotton is immersed in FeCl 3In the solution, the add-on of absorbent cotton is every milliliter of FeCl 3Add 0.05g absorbent cotton in the solution, with absorbent cotton absorption iron ion 1.5-2.5h, the absorbent cotton that will adsorb iron ion afterwards put into High Temperature Furnaces Heating Apparatus 400 ℃ ,-condition of 0.2Torr under reaction 2 hours, take out reaction product afterwards and add alcohol and grind, finally by magnetic force sedimentation after the supersound process, remove non-magnetic substance, make Fe 3O 4Particle; 2., get the Fe that step makes in 1. 3O 4Particle also adds tetraethoxy, hydrochloric acid, second alcohol and water successively, and add-on is Fe by the mole mass ratio 3O 4: tetraethoxy: hydrochloric acid: ethanol: water=1:3:0.32:8.02:0.65 adds, and then mixing solutions is warming up to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-condition of 0.2Torr under calcining 1.5h(Torr be pressure unit, 1 Torr ≈, 133.322 Pa), take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make SiO 2/ C/Fe 3O 4Particle; 3., get the SiO that step makes in 2. 2/ C/Fe 3O 4Particle also adds tetrabutyl titanate, hydrochloric acid, second alcohol and water successively, and add-on is SiO by the mole mass ratio 2/ C/Fe 3O 4: tetrabutyl titanate: hydrochloric acid: ethanol: water=1:5:0.1:2.06:0.17 adds, and then mixing solutions is warming up to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make magnetic and carry nano functional particle TiO 2/ SiO 2/ C/Fe 3O 4Particle;
2), carry the nano functional particle with magnetic fiery explosive waste water is carried out photocatalytic degradation: get the TiO that makes in the step 1) 2/ SiO 2/ C/Fe 3O 4Particle joins fiery explosive waste water and carries out photocatalytic degradation, and add-on is TiO by mass ratio 2/ SiO 2/ C/Fe 3O 4The quality of particle: the quality of fiery explosive waste water solute=1:0.001 adds, then under the irradiation of 350-400nm UV-light, carry out light-catalyzed reaction, the percent of decolourization curve of fire explosive waste water increases with the light-catalyzed reaction time and rises, when rising to certain altitude and no longer rise, photocatalytic degradation is finished (the percent of decolourization curve is seen shown in Figure 5); Utilize at last magnetic greater than the externally-applied magnetic field of 50emu/g to TiO 2/ SiO 2/ C/Fe 3O 4Particle with the degraded after fiery explosive waste water separate, finish TiO 2/ SiO 2/ C/Fe 3O 4The recovery of particle.
The preparation parameter of each step all is the optimal result that the applicant obtains by repetition test in the inventive method, thereby has reached optimum degradation effect.
TiO 2Be the n N-type semiconductorN, its energy band structure is to be full of the low energy valence band of electronics and the high energy band of a sky constitutes by one, has the forbidden band between them, and its energy gap is 3.2eV.By as can be known, it can only absorbing wavelength be less than or equal to the UV-light of 387.5nm.After by UV-irradiation, the electronics in the valence band will be excited to conduction band, forms electronegative high reactivity electronics, produces the hole of positively charged simultaneously in valence band, and electronics separates with the hole, moves to the different positions of ion surface.Thermodynamic argument shows that the hole that is distributed in the surface can will be adsorbed on TiO 2The 0H on surface -Or with water molecules oxidation formation HO free radical.The oxidation capacity of H0 free radical is the strongest in the oxygenant that exists in the water body, and the energy most organic pollutant of oxidation and part inorganic pollutant finally are degraded to C0 with it 2And H 20 innoxious substance such as grade.And the oxidizing potential of HO free radical is than TiO 2The valence band current potential more negative, organism also can be directly by the oxidation of hole institute like this.And Ti0 2The highly active electronics in surface then has very strong reducing power, can reduce and remove harmful ion in the environment.Just can realize photocatalysis Decomposition fire explosive waste water through uviolizing like this.
Further, described fiery explosive waste water is TNT waste water.The most fiery explosive waste water of the inventive method degradable, wherein, the effect optimum of degraded TNT waste water.
Among the present invention, magnetic carries nano functional particle TiO 2/ SiO 2/ C/Fe 3O 4Particle is nucleocapsid structure, its structure as shown in Figure 1, the central position is Fe 3O 4Magnetic nuclear, Fe 3O 4Wrap up in attached carbon fiber layer, carbon fiber layer outside the magnetic nuclear and wrap up in attached SiO outward 2Layer, SiO 2Wrap up in attached Detitanium-ore-type TiO outside the layer 2Layer, TiO 2/ SiO 2/ C/Fe 3O 4The special construction of particle has determined it to have magnetic concurrently and photochemical catalysis is hot, and it has very high dispersiveness, and (Fig. 2,3 is TiO 2/ SiO 2/ C/Fe 3O 4The transmission electron microscope picture of particle and XRD figure), its preparation process is simple, has that chemical property is stablized, resistance to worn, low cost, and is nontoxic, be easy to advantages such as recovery.The present invention utilizes polymolecularity TiO 2/ SiO 2/ C/Fe 3O 4Nucleocapsid structure magnetic carries the nano functional particle, realizes the technology of the callable photocatalytic degradation fire of magnetic control explosive waste water, under the irradiation of UV-light, and TiO 2/ SiO 2/ C/Fe 3O 4The nano functional particle can reach 63.24% to the degradation rate of fiery explosive waste water, and TiO 2/ SiO 2/ C/Fe 3O 4The nano functional particle can carry out magnetic control and recycle and reuse (TiO 2/ SiO 2/ C/Fe 3O 4The magnetic hysteresis loop of nano functional particle is seen shown in Figure 4), avoided the appearance of secondary pollution.The present invention has widened the Application Areas of photocatalytic particle, has further improved the ability of industrial mass production.
Description of drawings
Fig. 1 carries nano functional particle TiO for magnetic among the present invention 2/ SiO 2/ C/Fe 3O 4The structural representation of particle.
Fig. 2 carries nano functional particle TiO for magnetic among the present invention 2/ SiO 2/ C/Fe 3O 4The transmission electron microscope picture of particle.
Fig. 3 carries nano functional particle TiO for magnetic among the present invention 2/ SiO 2/ C/Fe 3O 4The XRD figure of particle.
Fig. 4 carries nano functional particle TiO for magnetic among the present invention 2/ SiO 2/ C/Fe 3O 4The magnetic hysteresis loop of particle.
Fig. 5 is the degrade photochemical catalysis percent of decolourization graphic representation of fiery explosive waste water of the present invention under UV-irradiation.
Among the figure: 1-Detitanium-ore-type TiO 2Layer, 2-SiO 2Layer, 3-carbon fiber layer, 4-Fe 3O 4Magnetic nuclear.
Embodiment
Embodiment 1
A kind of method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic comprises the steps:
1., configuration concentration is 2mol/L FeCl 1), magnetic carries the preparation of nano functional particle: 3Solution, the extracting degreasing cotton is immersed in FeCl 3In the solution, the add-on of absorbent cotton is every milliliter of FeCl 3Add 0.05g absorbent cotton in the solution, with absorbent cotton absorption iron ion 1.5h, the absorbent cotton that will adsorb iron ion afterwards put into High Temperature Furnaces Heating Apparatus 400 ℃ ,-condition of 0.2Torr under reaction 2 hours, take out reaction product afterwards and add alcohol and grind, finally by magnetic force sedimentation after the supersound process, remove non-magnetic substance, make Fe 3O 4Particle; 2., get the Fe that step makes in 1. 3O 4Particle also adds tetraethoxy, hydrochloric acid, second alcohol and water successively, and add-on is Fe by the mole mass ratio 3O 4: tetraethoxy: hydrochloric acid: ethanol: water=1:3:0.32:8.02:0.65 adds, and then with mixing solutions heat temperature raising to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make SiO 2/ C/Fe 3O 4Particle; 3., get the SiO that step makes in 2. 2/ C/Fe 3O 4Particle also adds tetrabutyl titanate, hydrochloric acid, second alcohol and water successively, and add-on is SiO by the mole mass ratio 2/ C/Fe 3O 4: tetrabutyl titanate: hydrochloric acid: ethanol: water=1:5:0.1:2.06:0.17 adds, and then mixing solutions is warming up to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make magnetic and carry nano functional particle TiO 2/ SiO 2/ C/Fe 3O 4Particle;
2), carry the nano functional particle with magnetic fiery explosive waste water is carried out photocatalytic degradation: get the TiO that makes in the step 1) 2/ SiO 2/ C/Fe 3O 4Particle joins fiery explosive waste water and carries out photocatalytic degradation, and add-on is TiO by mass ratio 2/ SiO 2/ C/Fe 3O 4The quality of particle: the quality of fiery explosive waste water solute=1:0.001 adds, then under the irradiation of 375nm UV-light, carry out light-catalyzed reaction, the percent of decolourization curve of fire explosive waste water increases with the light-catalyzed reaction time and rises, and when rising to certain altitude and no longer rise, photocatalytic degradation is finished; Utilize at last magnetic greater than the externally-applied magnetic field of 50emu/g to TiO 2/ SiO 2/ C/Fe 3O 4Particle with the degraded after fiery explosive waste water separate, finish TiO 2/ SiO 2/ C/Fe 3O 4The recovery of particle.
Among this embodiment, fiery explosive waste water is TNT waste water.
Embodiment 2
A kind of method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic comprises the steps:
1., configuration concentration is 2mol/L FeCl 1), magnetic carries the preparation of nano functional particle: 3Solution, the extracting degreasing cotton is immersed in FeCl 3In the solution, the add-on of absorbent cotton is every milliliter of FeCl 3Add 0.05g absorbent cotton in the solution, with absorbent cotton absorption iron ion 2.5h, the absorbent cotton that will adsorb iron ion afterwards put into High Temperature Furnaces Heating Apparatus 400 ℃ ,-condition of 0.2Torr under reaction 2 hours, take out reaction product afterwards and add alcohol and grind, finally by magnetic force sedimentation after the supersound process, remove non-magnetic substance, make Fe 3O 4Particle; 2., get the Fe that step makes in 1. 3O 4Particle also adds tetraethoxy, hydrochloric acid, second alcohol and water successively, and add-on is Fe by the mole mass ratio 3O 4: tetraethoxy: hydrochloric acid: ethanol: water=1:3:0.32:8.02:0.65 adds, and then with mixing solutions heat temperature raising to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make SiO 2/ C/Fe 3O 4Particle; 3., get the SiO that step makes in 2. 2/ C/Fe 3O 4Particle also adds tetrabutyl titanate, hydrochloric acid, second alcohol and water successively, and add-on is SiO by the mole mass ratio 2/ C/Fe 3O 4: tetrabutyl titanate: hydrochloric acid: ethanol: water=1:5:0.1:2.06:0.17 adds, and then mixing solutions is warming up to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make magnetic and carry nano functional particle TiO 2/ SiO 2/ C/Fe 3O 4Particle;
2), carry the nano functional particle with magnetic fiery explosive waste water is carried out photocatalytic degradation: get the TiO that makes in the step 1) 2/ SiO 2/ C/Fe 3O 4Particle joins fiery explosive waste water and carries out photocatalytic degradation, and add-on is TiO by mass ratio 2/ SiO 2/ C/Fe 3O 4The quality of particle: the quality of fiery explosive waste water solute=1:0.001 adds, then under the irradiation of 350nm UV-light, carry out light-catalyzed reaction, the percent of decolourization curve of fire explosive waste water increases with the light-catalyzed reaction time and rises, and when rising to certain altitude and no longer rise, photocatalytic degradation is finished; Utilize at last magnetic greater than the externally-applied magnetic field of 50emu/g to TiO 2/ SiO 2/ C/Fe 3O 4Particle with the degraded after fiery explosive waste water separate, finish TiO 2/ SiO 2/ C/Fe 3O 4The recovery of particle.
Embodiment 3
A kind of method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic comprises the steps:
1., configuration concentration is 2mol/L FeCl 1), magnetic carries the preparation of nano functional particle: 3Solution, the extracting degreasing cotton is immersed in FeCl 3In the solution, the add-on of absorbent cotton is every milliliter of FeCl 3Add 0.05g absorbent cotton in the solution, with absorbent cotton absorption iron ion 2.0h, the absorbent cotton that will adsorb iron ion afterwards put into High Temperature Furnaces Heating Apparatus 400 ℃ ,-condition of 0.2Torr under reaction 2 hours, take out reaction product afterwards and add alcohol and grind, finally by magnetic force sedimentation after the supersound process, remove non-magnetic substance, make Fe 3O 4Particle; 2., get the Fe that step makes in 1. 3O 4Particle also adds tetraethoxy, hydrochloric acid, second alcohol and water successively, and add-on is Fe by the mole mass ratio 3O 4: tetraethoxy: hydrochloric acid: ethanol: water=1:3:0.32:8.02:0.65 adds, and then with mixing solutions heat temperature raising to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make SiO 2/ C/Fe 3O 4Particle; 3., get the SiO that step makes in 2. 2/ C/Fe 3O 4Particle also adds tetrabutyl titanate, hydrochloric acid, second alcohol and water successively, and add-on is SiO by the mole mass ratio 2/ C/Fe 3O 4: tetrabutyl titanate: hydrochloric acid: ethanol: water=1:5:0.1:2.06:0.17 adds, and then mixing solutions is warming up to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make magnetic and carry nano functional particle TiO 2/ SiO 2/ C/Fe 3O 4Particle;
2), carry the nano functional particle with magnetic fiery explosive waste water is carried out photocatalytic degradation: get the TiO that makes in the step 1) 2/ SiO 2/ C/Fe 3O 4Particle joins fiery explosive waste water and carries out photocatalytic degradation, and add-on is TiO by mass ratio 2/ SiO 2/ C/Fe 3O 4The quality of particle: the quality of fiery explosive waste water solute=1:0.001 adds, then under the irradiation of 400nm UV-light, carry out light-catalyzed reaction, the percent of decolourization curve of fire explosive waste water increases with the light-catalyzed reaction time and rises, and when rising to certain altitude and no longer rise, photocatalytic degradation is finished; Utilize at last magnetic greater than the externally-applied magnetic field of 50emu/g to TiO 2/ SiO 2/ C/Fe 3O 4Particle with the degraded after fiery explosive waste water separate, finish TiO 2/ SiO 2/ C/Fe 3O 4The recovery of particle.

Claims (2)

1. a method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic is characterized in that, comprises the steps:
1., configuration concentration is 2mol/L FeCl 1), magnetic carries the preparation of nano functional particle: 3Solution, the extracting degreasing cotton is immersed in FeCl 3In the solution, the add-on of absorbent cotton is every milliliter of FeCl 3Add 0.05g absorbent cotton in the solution, with absorbent cotton absorption iron ion 1.5-2.5h, the absorbent cotton that will adsorb iron ion afterwards put into High Temperature Furnaces Heating Apparatus 400 ℃ ,-condition of 0.2Torr under reaction 2 hours, take out reaction product afterwards and add alcohol and grind, finally by magnetic force sedimentation after the supersound process, remove non-magnetic substance, make Fe 3O 4Particle; 2., get the Fe that step makes in 1. 3O 4Particle also adds tetraethoxy, hydrochloric acid, second alcohol and water successively, and add-on is Fe by the mole mass ratio 3O 4: tetraethoxy: hydrochloric acid: ethanol: water=1:3:0.32:8.02:0.65 adds, and then with mixing solutions heat temperature raising to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make SiO 2/ C/Fe 3O 4Particle; 3., get the SiO that step makes in 2. 2/ C/Fe 3O 4Particle also adds tetrabutyl titanate, hydrochloric acid, second alcohol and water successively, and add-on is SiO by the mole mass ratio 2/ C/Fe 3O 4: tetrabutyl titanate: hydrochloric acid: ethanol: water=1:5:0.1:2.06:0.17 adds, and then mixing solutions is warming up to 500 ℃ and stir 20min, leaves standstill 3h afterwards; Then with reaction product magnetic force sedimentation after supersound process, remove put into behind the non-magnetic substance High Temperature Furnaces Heating Apparatus 500 ℃ ,-calcine 1.5h under the condition of 0.2Torr, take out calcinate afterwards and add alcohol and grind, magnetic force sedimentation after supersound process more at last, remove non-magnetic substance, make magnetic and carry nano functional particle TiO 2/ SiO 2/ C/Fe 3O 4Particle;
2), carry the nano functional particle with magnetic fiery explosive waste water is carried out photocatalytic degradation: get the TiO that makes in the step 1) 2/ SiO 2/ C/Fe 3O 4Particle joins fiery explosive waste water and carries out photocatalytic degradation, and add-on is TiO by mass ratio 2/ SiO 2/ C/Fe 3O 4The quality of particle: the quality of fiery explosive waste water solute=1:0.001 adds, then under the irradiation of 350-400nm UV-light, carry out light-catalyzed reaction, the percent of decolourization curve of fire explosive waste water increases with the light-catalyzed reaction time and rises, when rising to certain altitude and no longer rise, photocatalytic degradation is finished; Utilize at last magnetic greater than the externally-applied magnetic field of 50emu/g to TiO 2/ SiO 2/ C/Fe 3O 4Particle with the degraded after fiery explosive waste water separate, finish TiO 2/ SiO 2/ C/Fe 3O 4The recovery of particle.
2. method of carrying the fiery explosive waste water photocatalytic degradation of nano functional particle based on magnetic according to claim 1, it is characterized in that: described fiery explosive waste water is TNT waste water.
CN201310146709.8A 2013-04-25 2013-04-25 Method for carrying out photocatalytic degradation on waste water of explosives and powders based on magnetic carrier nano functional particles Expired - Fee Related CN103232089B (en)

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CN105936561A (en) * 2016-07-08 2016-09-14 湖南永清环保研究院有限责任公司 Processing method of explosive wastewater

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CN201062225Y (en) * 2007-04-28 2008-05-21 广州市浩蓝环保技术有限公司 Sewage water treatment system for explosive waste water
WO2011086567A1 (en) * 2010-01-12 2011-07-21 Council Of Scientific & Industrial Research Magnetic dye-adsorbent catalyst
CN102267738A (en) * 2011-04-08 2011-12-07 华中科技大学 Magnetic photoelectrode and preparation method thereof
CN102872774A (en) * 2011-07-11 2013-01-16 张�林 Titanium dioxide (shell)-dopant (core) composite material and preparation method thereof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004052533A1 (en) * 2002-12-12 2004-06-24 Henkel Kommanditgesellschaft Auf Aktien Production of magnetic titanium dioxide particles
CN201062225Y (en) * 2007-04-28 2008-05-21 广州市浩蓝环保技术有限公司 Sewage water treatment system for explosive waste water
WO2011086567A1 (en) * 2010-01-12 2011-07-21 Council Of Scientific & Industrial Research Magnetic dye-adsorbent catalyst
CN102267738A (en) * 2011-04-08 2011-12-07 华中科技大学 Magnetic photoelectrode and preparation method thereof
CN102872774A (en) * 2011-07-11 2013-01-16 张�林 Titanium dioxide (shell)-dopant (core) composite material and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105936561A (en) * 2016-07-08 2016-09-14 湖南永清环保研究院有限责任公司 Processing method of explosive wastewater
CN105936561B (en) * 2016-07-08 2020-02-14 湖南永清环保研究院有限责任公司 Treatment method of explosive wastewater

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