CN106698587A - Phenanthrene and fluoranthene photocatalytic degradation method using fly-ash zeolite load - Google Patents
Phenanthrene and fluoranthene photocatalytic degradation method using fly-ash zeolite load Download PDFInfo
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- CN106698587A CN106698587A CN201611055799.XA CN201611055799A CN106698587A CN 106698587 A CN106698587 A CN 106698587A CN 201611055799 A CN201611055799 A CN 201611055799A CN 106698587 A CN106698587 A CN 106698587A
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- Prior art keywords
- fluoranthene
- water
- luxuriant
- rich
- fragrance
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- GVEPBJHOBDJJJI-UHFFFAOYSA-N fluoranthene Chemical compound C1=CC(C2=CC=CC=C22)=C3C2=CC=CC3=C1 GVEPBJHOBDJJJI-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 239000010457 zeolite Substances 0.000 title claims abstract description 60
- 229910021536 Zeolite Inorganic materials 0.000 title claims abstract description 54
- 239000010881 fly ash Substances 0.000 title claims abstract description 54
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims abstract description 37
- YNPNZTXNASCQKK-UHFFFAOYSA-N phenanthrene Chemical compound C1=CC=C2C3=CC=CC=C3C=CC2=C1 YNPNZTXNASCQKK-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 238000013033 photocatalytic degradation reaction Methods 0.000 title claims abstract description 17
- 239000003054 catalyst Substances 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 41
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 claims abstract description 19
- 230000001699 photocatalysis Effects 0.000 claims abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 30
- 238000003756 stirring Methods 0.000 claims description 29
- 239000003205 fragrance Substances 0.000 claims description 26
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 20
- 238000006243 chemical reaction Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 16
- 235000019441 ethanol Nutrition 0.000 claims description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 238000002360 preparation method Methods 0.000 claims description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 11
- 239000011734 sodium Substances 0.000 claims description 11
- 229910052708 sodium Inorganic materials 0.000 claims description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 10
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 10
- 239000010883 coal ash Substances 0.000 claims description 10
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- 238000011835 investigation Methods 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 238000010992 reflux Methods 0.000 claims description 7
- FPCJKVGGYOAWIZ-UHFFFAOYSA-N butan-1-ol;titanium Chemical compound [Ti].CCCCO.CCCCO.CCCCO.CCCCO FPCJKVGGYOAWIZ-UHFFFAOYSA-N 0.000 claims description 6
- 239000000470 constituent Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 238000007146 photocatalysis Methods 0.000 claims description 6
- 229960000583 acetic acid Drugs 0.000 claims description 5
- 238000001354 calcination Methods 0.000 claims description 5
- 238000005119 centrifugation Methods 0.000 claims description 5
- HSJPMRKMPBAUAU-UHFFFAOYSA-N cerium(3+);trinitrate Chemical compound [Ce+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O HSJPMRKMPBAUAU-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000000498 cooling water Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 5
- 239000011363 dried mixture Substances 0.000 claims description 5
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 claims description 5
- 239000012362 glacial acetic acid Substances 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 5
- 238000000622 liquid--liquid extraction Methods 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 239000000047 product Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000000638 solvent extraction Methods 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 239000006228 supernatant Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 238000012360 testing method Methods 0.000 claims description 5
- 238000013019 agitation Methods 0.000 claims description 4
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 4
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 230000015556 catabolic process Effects 0.000 abstract description 13
- 238000006731 degradation reaction Methods 0.000 abstract description 13
- 230000000694 effects Effects 0.000 abstract description 9
- 239000011941 photocatalyst Substances 0.000 abstract description 4
- 239000000356 contaminant Substances 0.000 abstract description 3
- -1 rare-earth cerium ion Chemical class 0.000 abstract description 3
- 229910052684 Cerium Inorganic materials 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000011068 loading method Methods 0.000 abstract description 2
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 2
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 abstract 1
- 239000002243 precursor Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000011160 research Methods 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 4
- 239000008236 heating water Substances 0.000 description 4
- 238000002390 rotary evaporation Methods 0.000 description 4
- 239000002904 solvent Substances 0.000 description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 4
- 230000000593 degrading effect Effects 0.000 description 3
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 125000005605 benzo group Chemical group 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 230000002688 persistence Effects 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- YNPNZTXNASCQKK-LHNTUAQVSA-N 1,2,3,4,5,6,7,8,9,10-decadeuteriophenanthrene Chemical compound [2H]C1=C([2H])C([2H])=C2C3=C([2H])C([2H])=C([2H])C([2H])=C3C([2H])=C([2H])C2=C1[2H] YNPNZTXNASCQKK-LHNTUAQVSA-N 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001454 anthracenes Chemical class 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 238000011208 chromatographic data Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000020188 drinking water Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- YUWFEBAXEOLKSG-UHFFFAOYSA-N hexamethylbenzene Chemical compound CC1=C(C)C(C)=C(C)C(C)=C1C YUWFEBAXEOLKSG-UHFFFAOYSA-N 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010813 internal standard method Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000008239 natural water Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000550 scanning electron microscopy energy dispersive X-ray spectroscopy Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010183 spectrum analysis Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- 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
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
- B01J29/061—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing metallic elements added to the zeolite
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/39—Photocatalytic properties
-
- 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
- B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
- B01J2229/10—After treatment, characterised by the effect to be obtained
- B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
- B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
-
- 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
- C02F2101/32—Hydrocarbons, e.g. oil
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Toxicology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a phenanthrene and fluoranthene photocatalytic degradation method using a nanometer fly-ash zeolite load. Compared with the prior art, the method is characterized in that tetrabutyl titanate is used as a precursor, the fly-ash synthetic zeolite is used as a load, TiO2 is loaded at a low temperature, rare-earth cerium ion is mingled during the loading process to improve the photocatalytic activity, a fly-ash zeolite loaded Ce<3+>- TiO2 photocatalyst is prepared, the structure of the catalyst is characterized, phenanthrene and fluoranthene contaminants in water are well degraded, and the degradation effect thereof is verified. The method is easy to operate, high in degradation rate of polycyclic aromatic hydrocarbon, and has no secondary pollution. Meanwhile, the method is kept to efficiently coordinate with other technologies of water treatment, has no conflict and good application prospects.
Description
Technical field
It is specifically to be related to one kind to be boiled using flyash the invention belongs to the degradation technique field of multiring aromatic hydrocarbon substance
Luxuriant and rich with fragrance and fluoranthene the method for stone loaded article photocatalytic degradation.
Background technology
Polycyclic aromatic hydrocarbon is coal, oil, timber, tobacco, is produced during the organic matter imperfect combustion such as organic high molecular compound
Volatile hydrocarbon, be important environment and food contaminant.Hitherto it is found that have more than 200 kinds of PAHs, wherein there is phase
When part has carcinogenicity, such as benzo[α, benzo α anthracenes etc..PAHs is distributed widely in environment, and what can be lived at us is every
One corner finds, any to have organic matter to process, and discards, and the place burnt or use is likely to produce polycyclic aromatic hydrocarbon.
Today's society natural water is subject to the severe contamination of some toxic chemical substances of mankind's manufacture, and these have strong poison
The negative effect that the chemical substance of evil effect is produced to terrestrial ecosystem causes the extensive concern of people.It is reported that one
The presence of the persistence organic pollutants such as polycyclic aromatic hydrocarbon (PAHs) is able to detect that in the surface water and drinking water resource in a little areas,
The serious daily production and living for having threatened people.Polycyclic aromatic hydrocarbon is that the important persistence of class difficult degradation in the environment is organic
Pollutant, and there is " three-induced effect " mostly, it is classified as the environmental contaminants of priority acccess control including China by countries in the world.It is biological
Degraded is that current researcher pays close attention to most degrading polycyclic aromatic hydrocarbons methods, although it possesses the advantages of expense is low, degraded is thorough, but
Have that degradation efficiency is low, substrate is difficult to the shortcomings of contacting with degradation bacteria, and there are some researches show using TiO2Light degradation can be safe
The PAHs effectively gone in water removal.TiO2It is a kind of N-type semiconductor material, there is stronger oxidisability and reproducibility, is urged by it
Change that activity is high, heat resistance is strong, long action time, it is cheap the advantages of extremely people's pro-gaze, as a kind of most valued light
Catalyst.Common TiO2It is mostly powdered, although photocatalysis is strong, but it is commonly present point in wastewater treatment process
From, reclaim difficult the problems such as, thus how research is by TiO2Being fixed on carrier becomes the problem that people pay close attention to very much.Common load
Body mainly has:Glass, ceramics, activated carbon etc..Using zeolite as TiO2Carrier of photocatalyst also has many researchs, but greatly
Majority research all selection natural zeolites do carrier as carrier from the synthetic zeolite from flyash of adsorbable organic pollution
Research is rarely reported, while traditional carrying method need to obtain composite photo-catalyst by high-temperature roasting, equipment is complicated and consumes energy
It is more, therefore low temperature preparation TiO2It is also TiO in recent years2A study hotspot in preparation.
The content of the invention
Present invention solves the technical problem that there is provided a kind of luxuriant and rich with fragrance using nano flyash zeolite loaded article photocatalytic degradation
With the method for fluoranthene, it is easy to operate, degrading polycyclic aromatic hydrocarbons rate is high, non-secondary pollution, while keeping other techniques with water process
Efficiently coordinate.
The technical scheme is that：A kind of luxuriant and rich with fragrance and fluoranthene the side of utilization nano flyash zeolite loaded article photocatalytic degradation
Method, mainly includes the following steps that：
(1) preparation of nano flyash zeolite loaded optic catalyst：By volume constituents 50-80 parts of glacial acetic acid, 5-15 parts
Concentrated nitric acid be added in 80-100 parts of absolute ethyl alcohol, be uniformly mixed, formed settled solution, it is standby；Then in stirring
The lower butyl titanate by 50-80 parts is added in 150-200 parts of absolute ethyl alcohol, forms gelatinous molten after being sufficiently stirred for
Liquid, is placed in triangular pyramidal bottle, then to described settled solution is added in gelatinous solution, continues to stir 30min, will
120-200 parts of nano flyash zeolite is added thereto, and constant speed is stirred vigorously 2h, and reflux backflow maintains the temperature at 80-90
DEG C heating water bath simultaneously continues stirring, and titrating solution is slowly added dropwise in conical flask from return duct top with acid buret, continues
Stirring stops until stirrer, and reflux is removed, and triangular pyramidal bottle is incubated 2-4h taking-ups in being put in thermostat water bath, natural
Under the conditions of vapor away ethanol, rinsed out completely with deionized water gained precipitation in suspension and impurity, under 100-110 ° do
Dry 20-24h, ground 200 mesh sieve is obtained load C e3+-TiO2Nano flyash zeolite photochemical catalyst；
(2) degraded of the photochemical catalyst to Phenanthrene and fluoranthene：100mL polycyclic aromatic hydrocarbon solution is placed in beaker, is claimed
Take the Ce of 0.1-0.5g coal ash zeolites load3+-TiO2Photochemical catalyst is added in beaker, opens constant temperature blender with magnetic force with 240-
The constant stirring rate stirring of 300r/min, makes photochemical catalyst adsorb polycyclic aromatic hydrocarbon, and ultrasound is used in adsorption process
Ripple is aided in, and ultrasonic frequency after saturation to be adsorbed, opens uviol lamp between 100KHz and 12MHz, and preheating 5-10min is opened
Beginning timing, until reaction is finished；
(3) Phenanthrene and fluoranthene Concentration Testing are carried out to the water after degraded：By the water sample centrifugation after degraded, supernatant is taken
Liquid carries out liquid-liquid extraction, revolving, nitrogen and a series of pretreatment such as blows, and the concentration of luxuriant and rich with fragrance and fluoranthene is finally determined with GC-MS.
Further, described nano flyash zeolite preparation method is：Flyash is dried, 80 mesh sieves is crossed, with hydrogen-oxygen
Change sodium solution in mass ratio 1：1-2mL is uniformly mixed, and then melts at high temperature, and calcining heat is 560-600 DEG C, to mixed
Water is added in compound, makes its solid-to-liquid ratio be 1: 4-6, disperseed 20-30 minutes under ultrasonic wave, then by resulting solid water mixture
Dried at 80-90 DEG C；Dried mixture and calcium carbonate soln are pressed into solid-to-liquid ratio 1g：5-10mL mixes, calcium carbonate soln
Concentration be 1.5-2.5mol/L, and stir 4-8 hour, the mixture that will be obtained crystalline substance at a temperature of 90-100 DEG C in micro-wave oven
After changing 15-25 minutes, the product that will be obtained is washed through filtering, deionized water, until detection cleaning solution is without Ca2+, is used after drying
Nano grinder is to obtain nano flyash zeolite.
Further, described titrating solution is the cerous nitrate/ethanol solution of 1.5-3.5mg/L, and described ethanol is anhydrous
Ethanol.
Further, described photo catalysis reactor 300mm high, external diameter 250mm, inside put 250mL reaction beakers, uviol lamp
It is placed in directly over reactor, lamp source is 300W, wavelength 365nm, the built-in cooling water of reactor, it is ensured that reaction is carried out at room temperature.
Further, described described reactor includes 3-5 lamp, and described lamp is ultraviolet high-pressure sodium lamp, ultraviolet
Daylight is reflected into the reactor by the ultraviolet reflective optical system of parabolic shape.Described reflector is light gathering reflector
Device, described investigation on several focus reflectors is paraboloidal, and described reactor is arranged in described paraboloidal focus, for separating
Ultraviolet light in daylight, and make the ultraviolet light dichroic reflector that it is irradiated into described reactor.
Further, the intensity of light source of described ultraviolet high-pressure sodium lamp is 0.1-20mW/cm2。
Further, described revolving is completed using Rotary Evaporators, and rotary evaporation makes solvent equal in rotary course
Distilling flask surface is coated in evenly, and evaporation rate faster, is heated also evenly.
Further, described nitrogen is blown and is realized using water-bath Nitrogen evaporator, can make sample concentration, while preventing sample
In composition to be determined be oxidized.
Compared with prior art, beneficial effects of the present invention are embodied in：With butyl titanate as predecessor, flyash synthesis
Zeolite is carrier, low temperature load TiO2, rare earth doped cerium ion improves photocatalytic activity in loading process, prepares flyash
Zeolite-loaded Ce3+-TiO2Photochemical catalyst, the structure to catalyst is characterized, and luxuriant and rich with fragrance, the fluoranthene pollutant in water are filled
Divide degraded, and verify its degradation effect.The present invention it is easily operated, degrading polycyclic aromatic hydrocarbons rate is high, non-secondary pollution, at the same keep with
Other process efficients of water process coordinate, and Lothrus apterus have good application prospect.
Brief description of the drawings
Fig. 1 is the SEM-EDX figures of zeolite former state and synthesis photochemical catalyst
Fig. 2 is the XRD of zeolite former state and synthesis photochemical catalyst
Fig. 3 is influence of the catalyst amount to luxuriant and rich with fragrance, fluoranthene degradation effect
Specific embodiment
For ease of the understanding of the present invention, below in conjunction with explanation is further explained as a example by specific embodiment, implement
Example does not constitute the restriction to the embodiment of the present invention.
Embodiment 1：A kind of luxuriant and rich with fragrance and fluoranthene the method for utilization nano flyash zeolite loaded article photocatalytic degradation, mainly includes
Following steps：
(1) preparation of nano flyash zeolite loaded optic catalyst：By 50 parts of glacial acetic acid, 5 parts of dense nitre of volume constituents
Acid is added in 80 parts of absolute ethyl alcohol, is uniformly mixed, and forms settled solution, standby；Then under agitation by 50 parts
Butyl titanate is added in 150 parts of absolute ethyl alcohol, and gelatinous solution is formed after being sufficiently stirred for, and is placed in triangular pyramidal bottle
It is interior, then to described settled solution is added in gelatinous solution, continue to stir 30min, 120 parts of nano flyash is boiled
Stone is added thereto, and constant speed is stirred vigorously 2h, and reflux backflow maintains the temperature at 80 DEG C of heating water baths and continues stirring, with acid
From return duct top be slowly added dropwise in conical flask titrating solution by formula buret, continues to stir until stirrer stops, and will flow back
Device is removed, and triangular pyramidal bottle is incubated 2h taking-ups in being put in thermostat water bath, and ethanol is vapored away under natural conditions, uses deionized water
The suspension and impurity in gained precipitation are rinsed out completely, and in 20h is dried under 100 °, ground 200 mesh sieve is obtained load
Ce3+-TiO2Nano flyash zeolite photochemical catalyst；
(2) degraded of the photochemical catalyst to Phenanthrene and fluoranthene：100mL polycyclic aromatic hydrocarbon solution is placed in beaker, is claimed
Take the Ce of 0.1g coal ash zeolites load3+-TiO2Photochemical catalyst is added in beaker, opens constant temperature blender with magnetic force with 240r/min
Constant stirring rate stirring, photochemical catalyst is adsorbed polycyclic aromatic hydrocarbon, in adsorption process use ultrasonic assistant, surpass
Frequency of sound wave 100KHz, after saturation to be adsorbed, opens uviol lamp, and preheating 5min starts timing, until reaction is finished；
(3) Phenanthrene and fluoranthene Concentration Testing are carried out to the water after degraded：By the water sample centrifugation after degraded, supernatant is taken
Liquid carries out liquid-liquid extraction, revolving, nitrogen and a series of pretreatment such as blows, and the concentration of luxuriant and rich with fragrance and fluoranthene is finally determined with GC-MS.
Wherein, described nano flyash zeolite preparation method is：Flyash is dried, 80 mesh sieves is crossed, with NaOH
Solution in mass ratio 1：1mL is uniformly mixed, and then melts at high temperature, and calcining heat is 560 DEG C, is added in mixture
Water, makes its solid-to-liquid ratio be 1: 4, disperses under ultrasonic wave 20 minutes, and then resulting solid water mixture is dried at 80 DEG C；Will
Dried mixture presses solid-to-liquid ratio 1g with calcium carbonate soln：5mL mixes, and the concentration of calcium carbonate soln is 1.5mol/L, and is stirred
Mix 4 hours, the mixture that will be obtained crystallization after 15 minutes at a temperature of 90 DEG C in the micro-wave oven, the product that will be obtained through filtering,
Deionized water is washed, until detection cleaning solution is without Ca2+, the use of nano grinder is to obtain nano flyash zeolite after drying.Institute
The titrating solution stated is the cerous nitrate/ethanol solution of 1.5mg/L, and described ethanol is absolute ethyl alcohol.Described photo catalysis reactor
300mm high, external diameter 250mm, inside put 250mL reaction beakers, and uviol lamp is placed in directly over reactor, and lamp source is 300W, wavelength
365nm, the built-in cooling water of reactor, it is ensured that reaction is carried out at room temperature.Described described reactor includes 3 lamps, described
Lamp be ultraviolet high-pressure sodium lamp, daylight is reflected into the reactor by ultraviolet by the ultraviolet reflective optical system of parabolic shape
In.Described reflector is investigation on several focus reflectors, and described investigation on several focus reflectors is paraboloidal, and described reactor is arranged on described
Paraboloidal focus on, for separating the ultraviolet light in daylight, and make the ultraviolet light two that it is irradiated into described reactor
To color reflector.The intensity of light source of described ultraviolet high-pressure sodium lamp is 0.1mW/cm2.Described revolving is to use Rotary Evaporators
Complete, rotary evaporation makes solvent be uniformly coated on distilling flask surface in rotary course, and evaporation rate faster, is heated
Evenly.Described nitrogen blows to be realized using water-bath Nitrogen evaporator, can make sample concentration, while to be determined in preventing sample
Composition is oxidized.
Embodiment 2：A kind of luxuriant and rich with fragrance and fluoranthene the method for utilization nano flyash zeolite loaded article photocatalytic degradation, mainly includes
Following steps：
(1) preparation of nano flyash zeolite loaded optic catalyst：By 65 parts of glacial acetic acid, 10 parts of dense nitre of volume constituents
Acid is added in 90 parts of absolute ethyl alcohol, is uniformly mixed, and forms settled solution, standby；Then under agitation by 65 parts
Butyl titanate is added in 175 parts of absolute ethyl alcohol, and gelatinous solution is formed after being sufficiently stirred for, and is placed in triangular pyramidal bottle
It is interior, then to described settled solution is added in gelatinous solution, continue to stir 30min, 160 parts of nano flyash is boiled
Stone is added thereto, and constant speed is stirred vigorously 2h, and reflux backflow maintains the temperature at 85 DEG C of heating water baths and continues stirring, with acid
From return duct top be slowly added dropwise in conical flask titrating solution by formula buret, continues to stir until stirrer stops, and will flow back
Device is removed, and triangular pyramidal bottle is incubated 3h taking-ups in being put in thermostat water bath, and ethanol is vapored away under natural conditions, uses deionized water
The suspension and impurity in gained precipitation are rinsed out completely, and in 22h is dried under 105 °, ground 200 mesh sieve is obtained load
Ce3+-TiO2Nano flyash zeolite photochemical catalyst；
(2) degraded of the photochemical catalyst to Phenanthrene and fluoranthene：100mL polycyclic aromatic hydrocarbon solution is placed in beaker, is claimed
Take the Ce of 0.3g coal ash zeolites load3+-TiO2Photochemical catalyst is added in beaker, opens constant temperature blender with magnetic force with 270r/min
Constant stirring rate stirring, photochemical catalyst is adsorbed polycyclic aromatic hydrocarbon, in adsorption process use ultrasonic assistant, surpass
Frequency of sound wave 5MHz, after saturation to be adsorbed, opens uviol lamp, and preheating 7.5min starts timing, until reaction is finished；
(3) Phenanthrene and fluoranthene Concentration Testing are carried out to the water after degraded：By the water sample centrifugation after degraded, supernatant is taken
Liquid carries out liquid-liquid extraction, revolving, nitrogen and a series of pretreatment such as blows, and the concentration of luxuriant and rich with fragrance and fluoranthene is finally determined with GC-MS.
Wherein, described nano flyash zeolite preparation method is：Flyash is dried, 80 mesh sieves is crossed, with NaOH
Solution in mass ratio 1：1.5mL is uniformly mixed, and then melts at high temperature, and calcining heat is 580 DEG C, is added in mixture
Enter water, make its solid-to-liquid ratio be 1: 5, disperse under ultrasonic wave 25 minutes, then resulting solid water mixture is dried at 85 DEG C；
Dried mixture and calcium carbonate soln are pressed into solid-to-liquid ratio 1g：7.5mL mixes, and the concentration of calcium carbonate soln is 2mol/L, and
Stirring 6 hours, the mixture that will be obtained in the micro-wave oven at a temperature of 95 DEG C crystallization after 20 minutes, the product that will be obtained passes through
Filter, deionized water washing, until detection cleaning solution is without Ca2+, the use of nano grinder is to obtain nano flyash zeolite after drying.
Described titrating solution is the cerous nitrate/ethanol solution of 2.5mg/L, and described ethanol is absolute ethyl alcohol.Described light-catalyzed reaction
Device 300mm high, external diameter 250mm, inside put 250mL reaction beakers, and uviol lamp is placed in directly over reactor, and lamp source is 300W, wavelength
365nm, the built-in cooling water of reactor, it is ensured that reaction is carried out at room temperature.Described described reactor includes 4 lamps, described
Lamp be ultraviolet high-pressure sodium lamp, daylight is reflected into the reactor by ultraviolet by the ultraviolet reflective optical system of parabolic shape
In.Described reflector is investigation on several focus reflectors, and described investigation on several focus reflectors is paraboloidal, and described reactor is arranged on described
Paraboloidal focus on, for separating the ultraviolet light in daylight, and make the ultraviolet light two that it is irradiated into described reactor
To color reflector.The intensity of light source of described ultraviolet high-pressure sodium lamp is 10mW/cm2.Described revolving is to use Rotary Evaporators
Complete, rotary evaporation makes solvent be uniformly coated on distilling flask surface in rotary course, and evaporation rate faster, is heated
Evenly.Described nitrogen blows to be realized using water-bath Nitrogen evaporator, can make sample concentration, while to be determined in preventing sample
Composition is oxidized.
Embodiment 3：A kind of luxuriant and rich with fragrance and fluoranthene the method for utilization nano flyash zeolite loaded article photocatalytic degradation, mainly includes
Following steps：
(1) preparation of nano flyash zeolite loaded optic catalyst：By 80 parts of glacial acetic acid, 15 parts of dense nitre of volume constituents
Acid is added in 100 parts of absolute ethyl alcohol, is uniformly mixed, and forms settled solution, standby；Then under agitation by 80 parts
Butyl titanate is added in 200 parts of absolute ethyl alcohol, and gelatinous solution is formed after being sufficiently stirred for, and is placed in triangular pyramidal bottle
It is interior, then to described settled solution is added in gelatinous solution, continue to stir 30min, 200 parts of nano flyash is boiled
Stone is added thereto, and constant speed is stirred vigorously 2h, and reflux backflow maintains the temperature at 90 DEG C of heating water baths and continues stirring, with acid
From return duct top be slowly added dropwise in conical flask titrating solution by formula buret, continues to stir until stirrer stops, and will flow back
Device is removed, and triangular pyramidal bottle is incubated 4h taking-ups in being put in thermostat water bath, and ethanol is vapored away under natural conditions, uses deionized water
The suspension and impurity in gained precipitation are rinsed out completely, and in 24h is dried under 110 °, ground 200 mesh sieve is obtained load
Ce3+-TiO2Nano flyash zeolite photochemical catalyst；
(2) degraded of the photochemical catalyst to Phenanthrene and fluoranthene：100mL polycyclic aromatic hydrocarbon solution is placed in beaker, is claimed
Take the Ce of 0.5g coal ash zeolites load3+-TiO2Photochemical catalyst is added in beaker, opens constant temperature blender with magnetic force with 300r-min
Constant stirring rate stirring, photochemical catalyst is adsorbed polycyclic aromatic hydrocarbon, in adsorption process use ultrasonic assistant, surpass
Frequency of sound wave after saturation to be adsorbed, opens uviol lamp between 100KHz and 12MHz, and preheating 10min starts timing, until
Reaction is finished；
(3) Phenanthrene and fluoranthene Concentration Testing are carried out to the water after degraded：By the water sample centrifugation after degraded, supernatant is taken
Liquid carries out liquid-liquid extraction, revolving, nitrogen and a series of pretreatment such as blows, and the concentration of luxuriant and rich with fragrance and fluoranthene is finally determined with GC-MS.
Wherein, described nano flyash zeolite preparation method is：Flyash is dried, 80 mesh sieves is crossed, with NaOH
Solution in mass ratio 1：2mL is uniformly mixed, and then melts at high temperature, and calcining heat is 600 DEG C, is added in mixture
Water, makes its solid-to-liquid ratio be 1: 6, disperses under ultrasonic wave 30 minutes, and then resulting solid water mixture is dried at 90 DEG C；Will
Dried mixture presses solid-to-liquid ratio 1g with calcium carbonate soln：10mL mixes, and the concentration of calcium carbonate soln is 2.5mol/L, and is stirred
Mix 8 hours, the mixture that will be obtained crystallization after 25 minutes at a temperature of 100 DEG C in the micro-wave oven, the product that will be obtained through filtering,
Deionized water is washed, until detection cleaning solution is without Ca2+, the use of nano grinder is to obtain nano flyash zeolite after drying.Institute
The titrating solution stated is the cerous nitrate/ethanol solution of 3.5mg/L, and described ethanol is absolute ethyl alcohol.Described photo catalysis reactor
300mm high, external diameter 250mm, inside put 250mL reaction beakers, and uviol lamp is placed in directly over reactor, and lamp source is 300W, wavelength
365nm, the built-in cooling water of reactor, it is ensured that reaction is carried out at room temperature.Described described reactor includes 5 lamps, described
Lamp be ultraviolet high-pressure sodium lamp, daylight is reflected into the reactor by ultraviolet by the ultraviolet reflective optical system of parabolic shape
In.Described reflector is investigation on several focus reflectors, and described investigation on several focus reflectors is paraboloidal, and described reactor is arranged on described
Paraboloidal focus on, for separating the ultraviolet light in daylight, and make the ultraviolet light two that it is irradiated into described reactor
To color reflector.The intensity of light source of described ultraviolet high-pressure sodium lamp is 20mW/cm2.Described revolving is to use Rotary Evaporators
Complete, rotary evaporation makes solvent be uniformly coated on distilling flask surface in rotary course, and evaporation rate faster, is heated
Evenly.Described nitrogen blows to be realized using water-bath Nitrogen evaporator, can make sample concentration, while to be determined in preventing sample
Composition is oxidized.
Embodiment 4：Analysis test method
The mass spectrograph of the gas-chromatography of Agilent-7890-5975 is used in conjunction measure polycyclic aromatic hydrocarbon, is made using deuterated PAHs (phenanthrene-d10)
It is rate of recovery indicant, hexamethylbenzene is internal standard compound.Agilent HP-5MS (30m × 0.25mm × 0.25 μm) chromatogram post separation.
Injector temperature is 280 DEG C, with the not μ L of shunt mode sample introduction 1.With helium as carrier gas, 1.2mL/min constant flow rates are controlled.Heat up
Program is 55 DEG C (1min), is warmed up to 290 DEG C (20min) with the speed of 4 DEG C/min.Ion gun is EI sources, 230 DEG C of temperature, inspection
Device is surveyed in m/z:Full scan in the range of 50~500.Chromatographic data is processed with Agilent chromatographic work station, bent using 6 point calibrations
Line and internal standard method carry out quantifying for compound.
Embodiment 5：Nano flyash zeolite and Ce-TiO2Catalyst structure is characterized
SEM-EDS is analyzed
Fig. 1 gives coal ash zeolite as former state and SEM and the EDS figure of synthesis photochemical catalyst.It can be seen that by TiO2Load it
Afterwards, the surface appearance feature of coal ash zeolite there occurs obvious change.Former zeolite has obvious crystal formation feature, and occurs big
The pore structure of amount, and synthesizing photocatalyst surface becomes smoother and is rich in gloss, surface illustrates TiO without bulky grain2Than
Relatively evenly it is carried on its surface.Sample interior element can semi-quantitatively be analyzed by EDS energy spectrum analysis, coal ash zeolite is former
There are a small amount of Ti elements on sample surface and do not detect Ce elements, and source is that raw material flyash contains a small amount of titanium elements, and synthesizes light
Catalyst surface Ti constituent contents are up to more than 30% and containing a small amount of Ce elements, illustrate TiO2Successfully it is carried on flyash boiling
On stone surface.
XRD analysis
Fig. 2 is the XRD of coal ash zeolite former state and synthesis photochemical catalyst.Compare the two discovery, load TiO2Afterwards, boil
The main peak structure of stone does not change, but the intensity at peak has declined, and is primarily due to that area load is unformed and crystalline substance
The Ce-TiO of state shape2.While Ce-TiO2Zeolite has obvious at 2 θ ≈ 25.4 ° (d=0.346nm) and 37.8 ° of 2 θ ≈
Characteristic peak, illustrate most of TiO for being distributed in zeolite surface2It is anatase structured.
Embodiment 5：Influence of the photochemical catalyst dosage to luxuriant and rich with fragrance, fluoranthene degradation effect
Fig. 3 gives the relation between photochemical catalyst consumption and phenanthrene, fluoranthene solution degradation rate.It can be seen that luxuriant and rich with fragrance,
Fluoranthene solution degradation rate reaches highest when catalyst amount is 3g/L, continues to increase dosage, and photocatalysis effect has declined,
Luxuriant and rich with fragrance, fluoranthene aqueous concentration increases.Because within the specific limits, with the increase of photochemical catalyst consumption, the then light that it is generated
Raw electron-hole pair also just increases, and so promotes the generation of more hydroxyl radical free radical OH, so that accelerate the carrying out of reaction, directly
Saturation is reached to reaction.If continuing to increase photochemical catalyst consumption, shielding and scattering process, drop are generated to incident ultraviolet light
The low efficiency of light energy utilization, the absorption of catalyst granules inside influence solution to ultraviolet light, causes luxuriant and rich with fragrance, fluoranthene degradation rate to decline,
Aqueous concentration is improved.
Finally illustrate：It is that, for the ease of understanding embodiments of the invention, the present invention can also have using above-mentioned technical proposal
Other embodiment, protection scope of the present invention is not limited to this.Without departing from the spirit and substance of the case in the present invention, affiliated skill
The technical staff in art field works as can make various corresponding changes and deformation, but these corresponding changes and deformation according to the present invention
Belong to scope of the claims of the invention.
Claims (8)
1. a kind of luxuriant and rich with fragrance and fluoranthene the method for utilization nano flyash zeolite loaded article photocatalytic degradation, it is characterised in that main bag
Include following steps：
(1) preparation of nano flyash zeolite loaded optic catalyst：By volume constituents 50-80 parts of glacial acetic acid, 5-15 parts dense
Nitric acid is added in 80-100 parts of absolute ethyl alcohol, is uniformly mixed, and forms settled solution, standby；Then under agitation will
50-80 parts of butyl titanate is added in 150-200 parts of absolute ethyl alcohol, and gelatinous solution is formed after being sufficiently stirred for, and is put
In in triangular pyramidal bottle, then to described settled solution is added in gelatinous solution, continue to stir 30min, by 120-200
The nano flyash zeolite of part is added thereto, and constant speed is stirred vigorously 2h, and reflux backflow maintains the temperature at 80-90 DEG C of water-bath
Stirring is heated and continued, titrating solution is slowly added dropwise in conical flask from return duct top with acid buret, continue to stir straight
Stop to stirrer, reflux is removed, triangular pyramidal bottle is incubated 2-4h taking-ups in being put in thermostat water bath, under natural conditions
Ethanol is vapored away, suspension and impurity in gained precipitation is rinsed out completely with deionized water, in drying 20- under 100-110 °
24h, ground 200 mesh sieve is obtained load C e3+-TiO2Nano flyash zeolite photochemical catalyst；
(2) degraded of the photochemical catalyst to Phenanthrene and fluoranthene：100mL polycyclic aromatic hydrocarbon solution is placed in beaker, is weighed
The Ce of 0.1-0.5g coal ash zeolites load3+-TiO2Photochemical catalyst is added in beaker, opens constant temperature blender with magnetic force with 240-
The constant stirring rate stirring of 300r/min, makes photochemical catalyst adsorb polycyclic aromatic hydrocarbon, and ultrasound is used in adsorption process
Ripple is aided in, and ultrasonic frequency after saturation to be adsorbed, opens uviol lamp between 100KHz and 12MHz, and preheating 5-10min is opened
Beginning timing, until reaction is finished；
(3) Phenanthrene and fluoranthene Concentration Testing are carried out to the water after degraded：By the water sample centrifugation after degraded, take supernatant and enter
Row liquid-liquid extraction, revolving, nitrogen such as blow at a series of pretreatment, and the concentration of luxuriant and rich with fragrance and fluoranthene is finally determined with GC-MS.
2. luxuriant and rich with fragrance and fluoranthene the method for a kind of utilization nano flyash zeolite loaded article photocatalytic degradation as claimed in claim 1,
Characterized in that, described nano flyash zeolite preparation method is：Flyash is dried, 80 mesh sieves are crossed, it is molten with NaOH
Liquid in mass ratio 1：1-2mL is uniformly mixed, and then melts at high temperature, and calcining heat is 560-600 DEG C, in mixture
Water is added, makes its solid-to-liquid ratio be 1: 4-6, disperseed 20-30 minutes under ultrasonic wave, then by resulting solid water mixture in 80-
Dried at 90 DEG C；Dried mixture and calcium carbonate soln are pressed into solid-to-liquid ratio 1g：5-10mL mixes, the concentration of calcium carbonate soln
It is 1.5-2.5mol/L, and stirs 4-8 hours, the mixture that will be obtained crystallization 15- at a temperature of 90-100 DEG C in micro-wave oven
After 25 minutes, the product that will be obtained is washed through filtering, deionized water, until detection cleaning solution is without Ca2+, nanometer is used after drying
Pulverizer is to obtain nano flyash zeolite.
3. luxuriant and rich with fragrance and fluoranthene the method for a kind of utilization nano flyash zeolite loaded article photocatalytic degradation as claimed in claim 1,
Characterized in that, cerous nitrate/ethanol solution of the described titrating solution for 1.5-3.5mg/L, described ethanol is absolute ethyl alcohol.
4. luxuriant and rich with fragrance and fluoranthene the method for a kind of utilization nano flyash zeolite loaded article photocatalytic degradation as claimed in claim 1,
Characterized in that, described photo catalysis reactor 300mm high, external diameter 250mm, inside put 250mL reaction beakers, uviol lamp is placed in instead
Answer directly over device, lamp source is 300W, wavelength 365nm, the built-in cooling water of reactor, it is ensured that reaction is carried out at room temperature.
5. luxuriant and rich with fragrance and fluoranthene the method for a kind of utilization nano flyash zeolite loaded article photocatalytic degradation as claimed in claim 1,
Characterized in that, described described reactor includes 3-5 lamp, described lamp is ultraviolet high-pressure sodium lamp, and ultraviolet is by throwing
Be reflected into daylight in the reactor by the ultraviolet reflective optical system of paraboloid shape.Described reflector is investigation on several focus reflectors, institute
The investigation on several focus reflectors stated is paraboloidal, and described reactor is arranged in described paraboloidal focus, for separating daylight
In ultraviolet light, and make the ultraviolet light dichroic reflector that it is irradiated into described reactor.
6. luxuriant and rich with fragrance and fluoranthene the method for a kind of utilization nano flyash zeolite loaded article photocatalytic degradation as claimed in claim 1,
Characterized in that, the intensity of light source of described ultraviolet high-pressure sodium lamp is 0.1-20mW/cm2。
7. luxuriant and rich with fragrance and fluoranthene the method for a kind of utilization nano flyash zeolite loaded article photocatalytic degradation as claimed in claim 1,
Characterized in that, described revolving is completed using Rotary Evaporators.
8. luxuriant and rich with fragrance and fluoranthene the method for a kind of utilization nano flyash zeolite loaded article photocatalytic degradation as claimed in claim 1,
Characterized in that, described nitrogen blows being realized using water-bath Nitrogen evaporator.
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| CN111217424A (en) * | 2020-02-25 | 2020-06-02 | 上海海洋大学 | Desalination system for removing polycyclic aromatic hydrocarbons in seawater |
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Application publication date: 20170524 |