CN107312025A - A kind of terephthalic acid (TPA) Complexes of Uranyl photochemical catalyst and preparation method thereof - Google Patents
A kind of terephthalic acid (TPA) Complexes of Uranyl photochemical catalyst and preparation method thereof Download PDFInfo
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- CN107312025A CN107312025A CN201610294490.XA CN201610294490A CN107312025A CN 107312025 A CN107312025 A CN 107312025A CN 201610294490 A CN201610294490 A CN 201610294490A CN 107312025 A CN107312025 A CN 107312025A
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- uranyl
- terephthalic acid
- photochemical catalyst
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- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 title claims abstract description 106
- 239000003054 catalyst Substances 0.000 title claims abstract description 38
- 125000005289 uranyl group Chemical group 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 150000003504 terephthalic acids Chemical class 0.000 title claims abstract description 9
- MWVTWFVJZLCBMC-UHFFFAOYSA-N 4,4'-bipyridine Chemical compound C1=NC=CC(C=2C=CN=CC=2)=C1 MWVTWFVJZLCBMC-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000843 powder Substances 0.000 claims abstract description 9
- 239000013078 crystal Substances 0.000 claims abstract description 7
- 230000001699 photocatalysis Effects 0.000 claims abstract description 6
- 238000007146 photocatalysis Methods 0.000 claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- WEVYAHXRMPXWCK-UHFFFAOYSA-N Acetonitrile Chemical compound CC#N WEVYAHXRMPXWCK-UHFFFAOYSA-N 0.000 claims description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 5
- 239000012046 mixed solvent Substances 0.000 claims description 4
- 238000000634 powder X-ray diffraction Methods 0.000 claims description 4
- WGTYBPLFGIVFAS-UHFFFAOYSA-M tetramethylammonium hydroxide Chemical compound [OH-].C[N+](C)(C)C WGTYBPLFGIVFAS-UHFFFAOYSA-M 0.000 claims description 4
- SECXISVLQFMRJM-UHFFFAOYSA-N N-Methylpyrrolidone Chemical compound CN1CCCC1=O SECXISVLQFMRJM-UHFFFAOYSA-N 0.000 claims description 3
- ABUBSBSOTTXVPV-UHFFFAOYSA-H [U+6].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O Chemical class [U+6].CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O.CC([O-])=O ABUBSBSOTTXVPV-UHFFFAOYSA-H 0.000 claims description 3
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- VEMKTZHHVJILDY-PMACEKPBSA-N (5-benzylfuran-3-yl)methyl (1r,3s)-2,2-dimethyl-3-(2-methylprop-1-enyl)cyclopropane-1-carboxylate Chemical group CC1(C)[C@@H](C=C(C)C)[C@H]1C(=O)OCC1=COC(CC=2C=CC=CC=2)=C1 VEMKTZHHVJILDY-PMACEKPBSA-N 0.000 claims description 2
- 238000013019 agitation Methods 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000036571 hydration Effects 0.000 claims description 2
- 238000006703 hydration reaction Methods 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims description 2
- 229940077390 uranyl nitrate hexahydrate Drugs 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000015556 catabolic process Effects 0.000 abstract description 5
- 238000006731 degradation reaction Methods 0.000 abstract description 5
- 229910052724 xenon Inorganic materials 0.000 abstract description 5
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 4
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 abstract description 2
- PYWVYCXTNDRMGF-UHFFFAOYSA-N rhodamine B Chemical compound [Cl-].C=12C=CC(=[N+](CC)CC)C=C2OC2=CC(N(CC)CC)=CC=C2C=1C1=CC=CC=C1C(O)=O PYWVYCXTNDRMGF-UHFFFAOYSA-N 0.000 description 8
- 229940043267 rhodamine b Drugs 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 238000013033 photocatalytic degradation reaction Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001027 hydrothermal synthesis Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N dimethylformamide Substances CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 239000002957 persistent organic pollutant Substances 0.000 description 2
- -1 uranyl nitrates Chemical class 0.000 description 2
- 241001443715 Fusarium oxysporum f. sp. conglutinans Species 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007605 air drying Methods 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- WYICGPHECJFCBA-UHFFFAOYSA-N dioxouranium(2+) Chemical compound O=[U+2]=O WYICGPHECJFCBA-UHFFFAOYSA-N 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 229910002007 uranyl nitrate Inorganic materials 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
- C07F5/00—Compounds containing elements of Groups 3 or 13 of the Periodic System
- C07F5/003—Compounds containing elements of Groups 3 or 13 of the Periodic System without C-Metal linkages
-
- 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
- B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
- B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
- B01J31/22—Organic complexes
- B01J31/2204—Organic complexes the ligands containing oxygen or sulfur as complexing atoms
- B01J31/2208—Oxygen, e.g. acetylacetonates
- B01J31/2213—At least two complexing oxygen atoms present in an at least bidentate or bridging ligand
-
- B01J35/39—
-
- 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
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0213—Complexes without C-metal linkages
- B01J2531/0216—Bi- or polynuclear complexes, i.e. comprising two or more metal coordination centres, without metal-metal bonds, e.g. Cp(Lx)Zr-imidazole-Zr(Lx)Cp
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
- B01J2531/0238—Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
- B01J2531/0258—Flexible ligands, e.g. mainly sp3-carbon framework as exemplified by the "tedicyp" ligand, i.e. cis-cis-cis-1,2,3,4-tetrakis(diphenylphosphinomethyl)cyclopentane
-
- 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
- B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
- B01J2531/30—Complexes comprising metals of Group III (IIIA or IIIB) as the central metal
- B01J2531/38—Lanthanides other than lanthanum
-
- 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
- C02F2101/34—Organic compounds containing oxygen
-
- 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
- C02F2101/38—Organic compounds containing nitrogen
-
- 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
-
- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
Abstract
The invention discloses a kind of terephthalic acid (TPA) Complexes of Uranyl photochemical catalyst and preparation method thereof.The molecular formula of the photochemical catalyst is (H24,4 ' bpy) [(UO2)2(TPA)3] [4,4 ' bpy=4,4 ' bipyridyls, TPA=terephthalic acid (TPA)s], it is that one kind can be by 100 mesh sieves, purity is not less than 99% yellow powder, belongs to for tetragonal crystal system, haveSpace group structure, the cell parameter of its crystal is：Cell parameter is The catalyst under the irradiation of the xenon source of simulated solar irradiation, in 105 minutes by concentration for 20mg/L RhB solution degradations to 28.6%, with traditional TiO2It is the good photochemical catalyst of photocatalysis performance compared to having the advantages that to produce response to visible ray.The preparation method of the present invention has the advantages that simple for process, low for equipment requirements.
Description
Technical field
The present invention relates to photochemical catalyst, and in particular to a kind of terephthalic acid (TPA) Complexes of Uranyl photochemical catalyst and its preparation side
Method.
Background technology
Water is lifespring, is the valuable natural resources that the mankind depend on for existence and development.But with industrial progress and
Social development, while people enjoy modern life facility, also suffers from the harm that water pollution is brought.How low power consuming,
The noxious materials such as the dyestuff in low cost, dynamical removal waste water turn into focus of concern.Photocatalysis technology is one
The green technology for having important application prospect in the energy and environmental area is planted, there is wide answer in terms of organic pollution is removed
Use prospect.Therefore, the preparation of photochemical catalyst also result in the extensive concern of people.Semiconductor light-catalyst will can give up at room temperature
Organic pollutants are oxidized to H2O、CO2Or inorganic ions etc., and non-secondary pollution.Wherein, TiO2With its catalytic activity it is high,
Cheap and easy to get, property is stable, nontoxic, anti-chemistry and the first choice studied as numerous researchers the advantages of photoetch.Such as
Publication No. CN102698727A application for a patent for invention, discloses a kind of supported titanium for preparing high thermal stability2Light is urged
The method of agent；Publication No. CN103007938A patent of invention discloses a kind of TiO of Cu doping vario-properties2Photochemical catalyst and
Its preparation method.But, due to TiO2It is a kind of wide band gap semiconducter, competence exertion can only acts under ultraviolet light, and photoproduction
Electronics is easily combined with hole, specific surface area is not big enough, therefore, is necessary that finding new light urges in terms of practical application
Agent.Uranyl ion has the strong absorption and response of unique visible light wave range, with higher photocatalysis efficiency, is expected to solve
TiO2The low shortcoming of photoresponse narrow range, quantum efficiency present in photochemical catalyst, as the photochemical catalyst for having much application potential.
Therefore, the present invention uses hydro-thermal method, has synthesized the Complexes of Uranyl photochemical catalyst with two-dimensional structure.The catalyst system of the present invention
It is standby convenient, and with preferable Photocatalytic Activity for Degradation efficiency.
The content of the invention
The terephthalic acid (TPA) uranyl that the technical problems to be solved by the invention are to provide a kind of degrading organic pollutant coordinates
Object light catalyst and preparation method thereof.Compared with prior art, the advantage of the invention is that：Terephthalic acid (TPA) Complexes of Uranyl light is urged
Agent prepares simplicity, with visible light-responded, photocatalytic degradation efficiency is high, stability is good, recyclable recycling.Point of the catalyst
Minor is (H2- 4,4 '-bpy) [(UO2)2(TPA)3] [4,4 '-bpy=4,4 '-bipyridyl, TPA=terephthalic acid (TPA)s], tetragonal
System,Space group, cell parameter isThe catalyst
For that can be not less than 99% by the yellow powders of 100 mesh sieves, purity, the catalyst is under the xenon lamp irradiation of simulated visible light, and 105
Minute in by concentration for 20mg/L RhB solution degradations to 28.6%, be a kind of photochemical catalyst with potential application foreground.
Present invention also offers the preparation method of above-mentioned terephthalic acid (TPA) Complexes of Uranyl photochemical catalyst, the preparation method is fast
Speed, it is easy, it is characterized in that stability is good, repeats and utilize.
Photochemical catalyst of the present invention is prepared using hydrothermal synthesis method, is comprised the following steps：
(1) terephthalic acid (TPA), 4,4'-Bipyridine, uranyl salts are added in the mixed solvent respectively, magnetic agitation mixes it
Close uniform rear a certain amount of alkali of addition；
(2) mixed liquor of step (1) is transferred in ptfe autoclave liner, seals 110-170 DEG C of reaction 24-
96h；
(3) obtained terephthalic acid (TPA) uranyl crystal is dried, ground, the powder, powder are obtained with the screening of 100 mesh sieves
Body is through powder x-ray diffraction crystal phase analysis, as shown in Figure 2.
Terephthalic acid (TPA), 4,4'-Bipyridine, the amount of uranyl salts are in mixed liquor described in above method step (1)
0.1-1.0mmol, the amount of alkali is 0.1mmol, and nitrate used includes uranyl nitrate hexahydrate and four hydration uranium acetates, institute
Mixed solvent includes acetonitrile/water of the 3mL volume ratios for 1: 2, N, and N '-dimethyl formamide/water and 1-METHYLPYRROLIDONE/
Water, alkali used includes TMAH, triethylamine and ammoniacal liquor.
Hydrothermal reaction condition preferably reacts 50-84h at 130-150 DEG C in above method step (2).
Preferred distilled water and ethanol rinse obtained terephthalic acid (TPA) uranyl crystal repeatedly in above method step (3), adopt
Use air drying.
Brief description of the drawings
Fig. 1 is the molecular structure of Complexes of Uranyl photochemical catalyst of the present invention；
Fig. 2 simulates the comparison diagram of PXRD collection of illustrative plates for the PXRD collection of illustrative plates of Complexes of Uranyl photochemical catalyst of the present invention with monocrystalline；
Fig. 3 is the TG curve maps of Complexes of Uranyl photochemical catalyst of the present invention；
Fig. 4 is the IR curve maps of Complexes of Uranyl photochemical catalyst of the present invention；
Fig. 5 is photocatalytic degradation curve map of the Complexes of Uranyl photochemical catalyst of the present invention to rhodamine B.
As seen from Figure 5, in the case where the xenon lamp irradiation of simulated visible light is not added with catalyst, rhodamine B does not occur
Degraded；Add after above-mentioned catalyst, rhodamine B occurs after obvious degradation, 105min, and rhodamine B degrades 71.4%.
Embodiment
The present invention is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment 1
Weigh 0.5mmol uranyl nitrates (UO2(NO3)2·6H2O) it is dissolved in the mixed of the acetonitrile/water that 3mL volume ratios are 1: 2
In bonding solvent, yellow solution is dissolved to obtain, 0.5mmol terephthalic acid (TPA)s (p-COOH-C is separately weighed6H4- COOH) and 0.5mmol 4,
4 '-bipyridyl (4,4 '-bpy) is added in above-mentioned mixed solution, is stirred, is subsequently added 0.1mmol TMAHs
(volume ratio is 25% aqueous solution), continues to stir 30min, measures pH=2.38, mixed solution is transferred to 23mL reaction
In kettle, sealing, and keep 72h at 140 DEG C.Yellow product, cleaning, dry, grind into powder are obtained after cooling.
Embodiment 2
Substantially the same manner as Example 1, different simply uranyl nitrates are substituted by uranium acetate.
Embodiment 3
The simply terephthalic acid (TPA) of addition, 4,4'-Bipyridine, the amount of uranyl salts substantially the same manner as Example 1, different
It is 0.1mmol or 1mmol.
Embodiment 4
It is substantially the same manner as Example 1, except that changing acetonitrile/water into N, N '-dimethyl formamide/water and N- methyl
Pyrrolidones/water.
Embodiment 5
It is substantially the same manner as Example 1, except that by 0.1mmol TMAHs change into 0.1mmol ammoniacal liquor or
0.1mmol triethylamines.
Embodiment 6
Substantially the same manner as Example 1, except that hydrothermal temperature becomes 130 DEG C or 150 DEG C, the reaction time is changed into
50h or 84h.
Embodiment 7
Terephthalic acid (TPA) Complexes of Uranyl photocatalytic degradation rhodamine B.
The present invention is degraded using terephthalic acid (TPA) complex to 20mg/L rhodamine B solution.
Implementation steps
1) 80mg terephthalic acid (TPA) complexs are taken, are put into after grinding in the rhodamine B solution that 80mL concentration is 20mg/L；
2) xenon lamp for being 300W with light source, it is seen that photocatalytic degradation is carried out to it under light；
3) appropriate solution is taken every 15min, rhodamine B in solution is monitored with ultraviolet-visible spectrophotometer after centrifugation
Change；
4) control experiment is carried out under conditions of terephthalic acid (TPA) Complexes of Uranyl is added without, and step is ibid.
Obtain photocatalytic degradation curve map as shown in Figure 5.Complexes of Uranyl photochemical catalyst can be recovered by centrifugation again sharp
With.
The molecular formula for the terephthalic acid (TPA) complex photochemical catalyst that above-described embodiment is obtained is (H2- 4,4 '-bpy) [(UO2)2
(TPA)3] [4,4 '-bpy=4,4 '-bipyridyl, TPA=terephthalic acid (TPA)s], it is the yellow powder that purity is not less than 99%, should
Catalyst simulated visible light xenon lamp irradiation under, in 105 minutes by concentration for 20mg/L RhB solution degradations to 28.6%,
It is the good photochemical catalyst of photocatalysis performance.
Claims (4)
1. a kind of terephthalic acid (TPA) Complexes of Uranyl photochemical catalyst, it is characterised in that the molecular formula of the complex photochemical catalyst is
(H2- 4,4 '-bpy) [(UO2)2(TPA)3] [4,4 '-bpy=4,4 '-bipyridyl, TPA=terephthalic acid (TPA)s], the photochemical catalyst
For can be by the yellow powders of 100 mesh sieves, purity be not less than 99%, is the good photochemical catalyst of photocatalysis performance.
2. the preparation method of the photochemical catalyst described in claim 1, it is characterised in that comprise the steps：
(1) terephthalic acid (TPA), 4,4'-Bipyridine, uranyl salts are added in the mixed solvent respectively, magnetic agitation makes its mixing equal
A certain amount of alkali is added after even；
(2) mixed liquor of step (1) is transferred in ptfe autoclave liner, seals 110-170 DEG C of reaction 24-96h；
(3) obtained terephthalic acid (TPA) uranyl crystal is dried, ground, the powder, powder warp are obtained with the screening of 100 mesh sieves
Powder x-ray diffraction crystal phase analysis, as shown in Figure 2.
3. the preparation method of terephthalic acid (TPA) uranyl as claimed in claim 2, it is characterised in that uranyl used in step (1)
Salt is uranyl nitrate hexahydrate or four hydration uranium acetates；Mixed solvent used includes acetonitrile/water, N, N '-dimethyl formyl
Amine/water and 1-METHYLPYRROLIDONE/water；Alkali used is TMAH, triethylamine and ammoniacal liquor.
4. the preparation method of terephthalic acid (TPA) uranyl as claimed in claim 2, it is characterised in that in step (2), hydro-thermal is anti-
It is 130-150 DEG C of holding 50-84h to answer condition.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776113A (en) * | 2018-06-06 | 2018-11-09 | 南华大学 | A kind of application of double-core Complexes of Uranyl in ATP analyses |
| CN109939739A (en) * | 2019-04-03 | 2019-06-28 | 东华理工大学 | A kind of 5- nitro-l,2,3 benzene tricarboxylic acid Complexes of Uranyl photochemical catalyst and preparation method thereof |
| CN110003248A (en) * | 2019-04-03 | 2019-07-12 | 东华理工大学 | A kind of polycarboxylic acid Complexes of Uranyl photochemical catalyst and preparation method thereof |
| CN110052290A (en) * | 2018-01-19 | 2019-07-26 | 宁波大学 | A kind of 2- nitroterephthalic Complexes of Uranyl photochemical catalyst |
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| CN110052290A (en) * | 2018-01-19 | 2019-07-26 | 宁波大学 | A kind of 2- nitroterephthalic Complexes of Uranyl photochemical catalyst |
| CN108776113A (en) * | 2018-06-06 | 2018-11-09 | 南华大学 | A kind of application of double-core Complexes of Uranyl in ATP analyses |
| CN111215145A (en) * | 2018-11-26 | 2020-06-02 | 宁波大学 | 2-nitro terephthalic acid uranyl complex photocatalyst |
| CN109939739A (en) * | 2019-04-03 | 2019-06-28 | 东华理工大学 | A kind of 5- nitro-l,2,3 benzene tricarboxylic acid Complexes of Uranyl photochemical catalyst and preparation method thereof |
| CN110003248A (en) * | 2019-04-03 | 2019-07-12 | 东华理工大学 | A kind of polycarboxylic acid Complexes of Uranyl photochemical catalyst and preparation method thereof |
| CN110003248B (en) * | 2019-04-03 | 2022-09-02 | 东华理工大学 | Polycarboxylic acid uranyl complex photocatalyst and preparation method thereof |
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