CN106076314B - A kind of BiVO4Full mesoporous nano belt high efficiency photocatalyst and its preparation method and application - Google Patents
A kind of BiVO4Full mesoporous nano belt high efficiency photocatalyst and its preparation method and application Download PDFInfo
- Publication number
- CN106076314B CN106076314B CN201610447298.XA CN201610447298A CN106076314B CN 106076314 B CN106076314 B CN 106076314B CN 201610447298 A CN201610447298 A CN 201610447298A CN 106076314 B CN106076314 B CN 106076314B
- Authority
- CN
- China
- Prior art keywords
- bivo
- pvp
- nano belt
- mesoporous nano
- high efficiency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002127 nanobelt Substances 0.000 title claims abstract description 72
- 239000011941 photocatalyst Substances 0.000 title claims abstract description 39
- 238000002360 preparation method Methods 0.000 title claims abstract description 22
- 229910002915 BiVO4 Inorganic materials 0.000 claims abstract description 36
- 239000002243 precursor Substances 0.000 claims abstract description 29
- 239000000835 fiber Substances 0.000 claims abstract description 20
- 238000006731 degradation reaction Methods 0.000 claims abstract description 19
- 230000015556 catabolic process Effects 0.000 claims abstract description 18
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 238000009987 spinning Methods 0.000 claims abstract description 13
- 102100032373 Coiled-coil domain-containing protein 85B Human genes 0.000 claims abstract description 10
- 101000868814 Homo sapiens Coiled-coil domain-containing protein 85B Proteins 0.000 claims abstract description 10
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000010041 electrostatic spinning Methods 0.000 claims abstract description 9
- 238000000197 pyrolysis Methods 0.000 claims abstract description 8
- FSJSYDFBTIVUFD-SUKNRPLKSA-N (z)-4-hydroxypent-3-en-2-one;oxovanadium Chemical compound [V]=O.C\C(O)=C\C(C)=O.C\C(O)=C\C(C)=O FSJSYDFBTIVUFD-SUKNRPLKSA-N 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 5
- 238000002791 soaking Methods 0.000 claims description 3
- 230000001699 photocatalysis Effects 0.000 abstract description 19
- 238000007146 photocatalysis Methods 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 10
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000000470 constituent Substances 0.000 abstract description 3
- 238000005187 foaming Methods 0.000 abstract description 3
- 239000000356 contaminant Substances 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 description 27
- 239000002121 nanofiber Substances 0.000 description 13
- CUJRVFIICFDLGR-UHFFFAOYSA-N acetylacetonate Chemical compound CC(=O)[CH-]C(C)=O CUJRVFIICFDLGR-UHFFFAOYSA-N 0.000 description 11
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 11
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 11
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 8
- 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
- 239000000463 material Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 229960000583 acetic acid Drugs 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000006555 catalytic reaction Methods 0.000 description 4
- 229960000935 dehydrated alcohol Drugs 0.000 description 4
- PPNKDDZCLDMRHS-UHFFFAOYSA-N dinitrooxybismuthanyl nitrate Chemical compound [Bi+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O PPNKDDZCLDMRHS-UHFFFAOYSA-N 0.000 description 4
- 239000012362 glacial acetic acid Substances 0.000 description 4
- 239000012071 phase Substances 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 238000002173 high-resolution transmission electron microscopy Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000002835 absorbance Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001523 electrospinning Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000520 microinjection Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- VVWRJUBEIPHGQF-MDZDMXLPSA-N propan-2-yl (ne)-n-propan-2-yloxycarbonyliminocarbamate Chemical compound CC(C)OC(=O)\N=N\C(=O)OC(C)C VVWRJUBEIPHGQF-MDZDMXLPSA-N 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000002336 sorption--desorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 231100001234 toxic pollutant Toxicity 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/20—Vanadium, niobium or tantalum
- B01J23/22—Vanadium
-
- B01J35/39—
-
- B01J35/50—
-
- B01J35/56—
-
- 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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/34—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation
- B01J37/341—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation
- B01J37/342—Irradiation by, or application of, electric, magnetic or wave energy, e.g. ultrasonic waves ; Ionic sputtering; Flame or plasma spraying; Particle radiation making use of electric or magnetic fields, wave energy or particle radiation of electric, magnetic or electromagnetic fields, e.g. for magnetic separation
-
- 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
-
- 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
Abstract
The present invention relates to a kind of BiVO4Full mesoporous nano belt high efficiency photocatalyst and its preparation method and application.Preparation method are as follows: by PVP, Bi (NO3)3·5H2O、VO(acac)2, DIPA and DMF be configured to spinning liquid as precursor；Prepared spinning liquid as precursor is obtained into organic precursor fiber through electrostatic spinning；It dries obtained organic precursor fiber to obtain solid precursor fiber；Obtained solid-state precursor fiber is obtained into BiVO through high temperature pyrolysis4Full mesoporous nano belt.The present invention realizes BiVO using foaming auxiliary electrostatic spin processes by the constituent and proportion of regulation spinning liquid as precursor4The preparation of full mesoporous nano belt high efficiency photocatalyst.The BiVO4Full mesoporous nano belt high efficiency photocatalyst has efficient and stable photocatalytic activity, by BiVO4Nanobelt high efficiency photocatalyst is used for light degradation, by the strong application for pushing photocatalysis technology in contaminant degradation field.
Description
Technical field
The present invention relates to a kind of photochemical catalyst and its preparation method and application more particularly to a kind of BiVO4Full meso-porous nano
Band high efficiency photocatalyst and its preparation method and application, belongs to catalysis material technical field.
PVP refers to polyvinylpyrrolidone in the present invention；Bi(NO3)3·5H2O refers to five nitric hydrate bismuths；VO(acac)2Refer to second
Acyl acetone vanadyl；DIPA refers to diisopropyl azodiformate；DMF refers to N-N dimethylformamide.
Background technique
With economic continuous development, what the increasingly sharpening of environmental pollution seriously constrained human economy and society can
Sustainable development, how to solve problem of environmental pollution becomes one of the hot issue that the whole world is paid close attention to jointly.Conductor photocatalysis skill
Art carrys out degradation of organic substances as a feasible and ideal strategy for solving environmental problem, has become research hotspot.Light is urged
Change technology is to absorb solar energy using semiconductor light-catalyst to degrade toxic pollutant, have reaction condition it is mild, without secondary
The advantages that polluting and is low in cost becomes an important technical for solving environmental problem.The core of photocatalysis technology is
The development of photochemical catalyst, wherein conventional electrostatic spinning BiVO4Nanofiber has nontoxic, just as one of photochemical catalyst
The advantages that preferably big with volume production, the deep favor by researchers.However, in practical applications, still restrict biography there are two problem
Unite BiVO4The extensive use of nanofiber photocatalyst: 1) in light-catalyzed reaction photo-generate electron-hole to easy compound, photocatalysis
Efficiency is lower；2) traditional BiVO4That there are specific surface areas is relatively low for nanofiber photocatalyst, causes under liquid phase photocatalytic system
It can not be come into full contact with pollutant, not can guarantee the photocatalytic activity of stability and high efficiency.
Summary of the invention
The purpose of the present invention is being directed to the above-mentioned problems in the prior art, propose a kind of nanobelt shape structure and
Nanobelt is the BiVO of full meso-hole structure4The preparation method of full mesoporous nano belt high efficiency photocatalyst.
Object of the invention can be realized by the following technical scheme: a kind of BiVO4Full mesoporous nano belt high efficiency photocatalysis
The preparation method of agent, the preparation method is that:
By PVP, Bi (NO3)3·5H2O、VO(acac)2, DIPA and DMF be configured to spinning liquid as precursor；
Prepared spinning liquid as precursor is obtained into organic precursor fiber through electrostatic spinning；
It dries obtained organic precursor fiber to obtain solid precursor fiber；
Obtained solid-state precursor fiber is obtained into BiVO through high temperature pyrolysis4Full mesoporous nano belt.
The present invention passes through the constituent and proportion of regulation spinning liquid as precursor, to be prepared by electrostatic spinning
BiVO4Nanobelt photochemical catalyst.In addition, the method for electrostatic spinning used of the invention is foaming auxiliary electrostatic spin processes, wherein
DIPA is used foaming agent, and a large amount of bubble can be discharged during high temperature pyrolysis, realizes the mesh of the inside and outside pore-creating of fiber
, so that BiVO be prepared4Full mesoporous nano belt photochemical catalyst.
In a kind of above-mentioned BiVO4In the preparation method of full mesoporous nano belt high efficiency photocatalyst, described PVP, Bi
(NO3)3·5H2O、VO(acac)2, DIPA and DMF mass ratio be (2-3): (1.5-2): 1:(1-2): (3-4).
In a kind of above-mentioned BiVO4In the preparation method of full mesoporous nano belt high efficiency photocatalyst, the PVP includes
PVPk12、PVPk15、PVPk17、PVPk25、PVPk30、 PVPk45、PVPk60、PVPk70、PVPk80、PVPk85、PVPk90、PVPk90、
PVPk100、 PVPk110、PVPk120、PVPk150At least one of.
In a kind of above-mentioned BiVO4In the preparation method of full mesoporous nano belt high efficiency photocatalyst, the PVP includes
PVPk90And PVPk30, PVPk90And PVPk30Mass ratio be 1:(2-5).The present invention is more preferably PVPk90And PVPk30,
In, PVPk90Mw be about 1300000, PVPk30Mw be about 40000.In conventional electrostatic spinning process, usually using PVPK90Make
For the binder of solution, and the present invention is in order to be prepared the BiVO of nanobelt shape structure4Nanobelt photochemical catalyst, introduces point
Protonatomic mass different PVP, such as PVPK30.Because adding the PVP of different molecular quality in precursor solution, such as add respectively
PVPK90And PVPK30, since molecular mass is different, caking ability not will lead to it mutually in spinning fibre radial distribution not phase on an equal basis
Together, wherein PVPK30It is distributed in fibrous inside and PVPK90It is distributed in fibrous external, during electrostatic spinning, along with molten
The volatilization of liquid, due to PVPK30Shared volume is larger, will lead to the collapsing of fiber, to form nanobelt.
Preferably, the spinning liquid as precursor is configured to PVP, Bi (NO3)3·5H2O、 VO(acac)2It is molten with DMF
In dehydrated alcohol and glacial acetic acid, stirring at normal temperature obtains spinning liquid as precursor.
Preferably, VO (acac)2Mass ratio with dehydrated alcohol is 1:(3-4).
Preferably, VO (acac)2Mass ratio with glacial acetic acid is 1:(2.5-3.5).
In a kind of above-mentioned BiVO4In the preparation method of full mesoporous nano belt high efficiency photocatalyst, the high temperature pyrolysis
Temperature is 400-600 DEG C, soaking time 0.5-2h.
Second object of the present invention is to provide a kind of above-mentioned BiVO4The preparation of full mesoporous nano belt high efficiency photocatalyst
The BiVO that method is prepared4Full mesoporous nano belt high efficiency photocatalyst.
In above-mentioned BiVO4In full mesoporous nano belt high efficiency photocatalyst, the BiVO4Full mesoporous nano belt efficiency light is urged
Agent is nanobelt shape structure, and the nanobelt is full meso-hole structure.
The present invention passes through to monoclinic phase BiVO4The structure of nano material optimizes and regulates and controls, the BiVO being prepared4Entirely
Mesoporous nano belt high efficiency photocatalyst is nanobelt shape structure, has many advantages, such as longer draw ratio, bigger cross-sectional area.And
And nanobelt is full meso-hole structure, with traditional BiVO4No meso-porous nano fiber is compared, BiVO of the present invention4Full mesoporous nano belt
Possess many excellent features, such as: the nanobelt photochemical catalyst of the full meso-hole structure of the present invention have typical mesoporous construction and
One-dimentional structure, assigns its high-ratio surface and stable geometry, and the light that efficient stable is able to maintain in light-catalyzed reaction is urged
Change activity.In addition, mesoporous band possesses many mesoporous channels in fibrous inside, under aqueous-phase photo-catalysis degradation system, have more
Pollutant be supported on the mesoporous channel of fiber, promote light degradation reaction to carry out in time, reduce in light-catalyzed reaction photoproduction electricity
Son-hole to easily it is compound, greatly improve photocatalysis efficiency.Therefore, BiVO of the present invention4Full mesoporous nano belt can solve
BiVO traditional at present4Without main problem existing for meso-porous nano fiber photocatalyst, effectively photocatalysis technology will be pushed in dirt
Contaminate the application in object degradation field.
Third object of the present invention is to provide above-mentioned BiVO4The application of full mesoporous nano belt high efficiency photocatalyst, institute
State BiVO4Full mesoporous nano belt high efficiency photocatalyst is used for light degradation.
Compared with prior art, the method has the advantages that
1. the present invention by regulation spinning liquid as precursor constituent and proportion, using foaming auxiliary electrostatic spin processes,
Realize BiVO4The preparation of full mesoporous nano belt high efficiency photocatalysis agent material.
2. BiVO of the present invention4Full mesoporous nano belt high efficiency photocatalyst has efficient and stable photocatalytic activity, thus
The strong application for pushing photocatalysis technology in contaminant degradation field.
Detailed description of the invention
Fig. 1 is BiVO obtained by the embodiment of the present invention 14Full mesoporous nano belt photochemical catalyst low power scanning electron microscope (SEM)
Figure；
Fig. 2 is BiVO obtained by the embodiment of the present invention 14Full mesoporous nano belt photochemical catalyst high power scanning electron microscope (SEM)
Figure；
Fig. 3 is single BiVO obtained by the embodiment of the present invention 14Full mesoporous nano belt photochemical catalyst scanning electron microscope (SEM)
Figure；
Fig. 4 is BiVO obtained by the embodiment of the present invention 14Full mesoporous nano belt photochemical catalyst X-ray diffraction spectrogram；
Fig. 5 is BiVO obtained by the embodiment of the present invention 14Full mesoporous nano belt photochemical catalyst transmission electron microscope (TEM) figure；
Fig. 6 is BiVO obtained by the embodiment of the present invention 14Full mesoporous nano belt high-resolution-ration transmission electric-lens (HRTEM) figure；
Fig. 7 is the BiVO of Application Example 1 of the present invention4Full mesoporous nano belt photochemical catalyst is commercially available with Comparison study example 1
Common BiVO4Photocatalytic activity comparison diagram without meso-porous nano fiber photocatalyst；
Fig. 8 is the commercially available common BiVO of Comparison study example 1 of the present invention4Without meso-porous nano fiber photocatalyst and Comparison study
The BiVO of example 24Photocatalytic activity comparison diagram without mesoporous nano belt photochemical catalyst.
Specific embodiment
The following is specific embodiments of the present invention, and is described with reference to the drawings and further retouches to technical solution of the present invention work
It states, however, the present invention is not limited to these examples.
Embodiment 1:
Weigh PVPK90 0.4g、PVPK30 1.2g、Bi(NO3)3·5H2O 1.21g and VO (acac)20.662g dissolution
In 2.5g dehydrated alcohol, 2.5gDMF and 2g glacial acetic acid mixed liquor in, 1.16g is added after being stirred 6 hours at room temperature
DIPA, and continue to stir to get spinning liquid as precursor.It is measured in 6ml injected plastic needle tubing after standing, is placed in micro-injection pump
On, it is 0.2mm/min that speed is injected in setting, and metal needle makees electrospinning wire anode, and wire netting makees to receive the cathode of material, anode with
The distance between cathode is 20cm, and electrostatic spinning is carried out under 12kV high pressure, organic precursor fiber is prepared.Then will have
Machine precursor fibre is placed in drying in 80 DEG C of constant temperature drying box, obtains solid precursor fiber.Finally by solid precursor fibre
Dimension is placed in quartz boat, and in air atmosphere in 500 DEG C of heat preservations, 1 hour progress pyrolysis processing, then furnace cooling is obtained
BiVO4Full mesoporous nano belt.
The BiVO that embodiment 1 is prepared4Full mesoporous nano belt is tested, and test result is as shown in the figure.
Fig. 1 and Fig. 2 is BiVO prepared by embodiment 14Full typical scan of the mesoporous nano belt under different amplification
Electronic Speculum (SEM), Fig. 3 are single BiVO prepared by embodiment 14Full mesoporous nano belt scanning electron microscope (SEM).It can from Fig. 1-Fig. 3
Know, material prepared by embodiment 1 is the nanofiber of the full meso-hole structure of high-purity.
Fig. 5 is transmission electron microscope (TEM) figure of its single nanobelt material, and again illustrating prepared nanofiber has
Full meso-hole structure.
Fig. 4 is its corresponding XRD diagram, and Fig. 6 is high-resolution-ration transmission electric-lens (HRTEM) figure, it is shown that [112] spacing in face
Lattice fringe, confirm that prepared full mesoporous nano belt is monocline scheelite phase BiVO jointly4Material.
The BiVO that the present invention is prepared4Full mesoporous nano belt photocatalyst applications carry out photocatalysis in light degradation
Performance detection.
Application Example 1:
The BiVO that embodiment 1 is prepared4Full mesoporous nano belt high efficiency photocatalyst is used for the light of rhodamine B (RhB)
Degradation.Specifically: weigh the BiVO that 0.04g embodiment 1 is prepared4At the beginning of full mesoporous nano belt photochemical catalyst is added to 100ml
Beginning concentration is in the aqueous solution of the RhB of 10mg/L, using 300W xenon lamp simulated solar radiant.Before carrying out illumination, in dark
Middle stirring 60min, spreads organic dyestuff uniformly with photocatalyst surface, to be finally reached adsorption-desorption balance.It is reacting
In the process, be stirred continuously solution, communicate reaction vessel with air, and in the reaction between fixed time intervals (20min) take
Sample after being centrifuged, takes and tests RhB solution on 5ml clear solution and ultraviolet-visible spectrophotometer in maximum absorption wavelength
Absorbance, and calculate RhB solution concentration with the situation of change of light application time.
Comparison study example 1:
The photochemical catalyst that Comparison study example 1 uses is commercially available common BiVO4Without meso-porous nano fiber photocatalyst same
The light degradation of rhodamine B (RhB) Deng under the conditions of.
Comparison study example 2:
The photochemical catalyst that Comparison study example 2 uses is BiVO4Sieve without mesoporous nano belt photochemical catalyst under equal conditions
The light degradation of red bright B (RhB).BiVO4No mesoporous nano belt photochemical catalyst is prepared by the preparation method of embodiment 1, but is prepared
Foaming agent DIPA is not added in the process.
Fig. 7 is the degradation rate that Application Example 1 of the present invention calculates and the degradation rate comparison that Comparison study example 1 calculates
Figure.As can be seen from Figure 7, BiVO prepared by the present invention4Full mesoporous nano belt photochemical catalyst has highly efficient the disposal efficiency, phase
Than commercially available common BiVO4Without meso-porous nano fiber photocatalyst, degradation efficiency can be improved 2.4 times or more, illustrate the present invention
The photochemical catalyst of the band-like structure of full meso-porous nano of preparation has efficient photocatalytic activity.
Fig. 8 is the degradation rate that Comparison study example 1 of the present invention calculates and the degradation rate comparison that Comparison study example 2 calculates
Figure.As it can be observed in the picture that the BiVO of Comparison study example 24No mesoporous nano belt photochemical catalyst has highly efficient the disposal efficiency,
Compared to commercially available common BiVO4Without meso-porous nano fiber photocatalyst, degradation efficiency can be improved 1.7 times or more, illustrate nanometer
The photochemical catalyst of banded structure has efficient photocatalytic activity.
BiVO4Full mesoporous nano belt photochemical catalyst photocatalytic activity is higher than BiVO4Without mesoporous nano belt photochemical catalyst,
BiVO4No mesoporous nano belt photochemical catalyst photocatalytic activity is higher than BiVO4Without meso-porous nano fiber photocatalyst.
In above-described embodiment and its alternative, PVP and VO (acac)2Mass ratio further include but be not limited to 2:1,
2.1:1,2.2:1,2.3:1,2.4:1,2.5:1,2.6:1,2.7:1,2.8:1,2.9:1,3:1.
In above-described embodiment and its alternative, Bi (NO3)3·5H2O and VO (acac)2Mass ratio further include but not
It is limited to 1.5:1,1.6:1,1.7:1,1.8:1,1.9:1,2:1.
In above-described embodiment and its alternative, VO (acac)2Mass ratio with DIPA further include but be not limited to 1:1,
1:1.1,1:1.2,1:1.3,1:1.4,1:1.5,1:1.6,1:1.7,1:1.8,1:1.9,1:2.
In above-described embodiment and its alternative, VO (acac)2Mass ratio with DMF further includes but is not limited to 1:3,1:
3.1,1:3.2,1:3.3,1:3.4,1:3.5,1:3.6,1:3.7,1:3.8,1:3.9,1:4.
In above-described embodiment and its alternative, PVP further includes PVPk12、PVPk15、 PVPk17、PVPk25、PVPk30、
PVPk45、PVPk60、PVPk70、PVPk80、PVPk85、 PVPk90、PVPk90、PVPk100、PVPk110、PVPk120、PVPk150In one
Kind, further include but is not limited to PVPk12、PVPk15、PVPk17、PVPk25、PVPk30、PVPk45、 PVPk60、PVPk70、PVPk80、
PVPk85、PVPk90、PVPk90、PVPk100、PVPk110、 PVPk120、PVPk150In any several mixing.
In above-described embodiment and its alternative, PVPk90And PVPk30Mass ratio further include but be not limited to 1:2,1:4,
1:5.
In above-described embodiment and its alternative, VO (acac)2Further include with dehydrated alcohol mass ratio but be not limited to 1:
3,1:3.1,1:3.2,1:3.3,1:3.4,1:3.5,1:3.6,1:3.7,1:3.8,1:3.9,1:4.
In above-described embodiment and its alternative, VO (acac)2Mass ratio with glacial acetic acid further includes but is not limited to 1:
2.5,1:2.6,1:2.7,1:2.8,1:2.9,1:3,1:3.1,1:3.2,1:3.3,1:3.4,1:3.5.
In above-described embodiment and its alternative, the temperature of the high temperature pyrolysis includes but is not limited to 400 DEG C, 410 well
℃、420℃、430℃、440℃、450℃、460℃、 470℃、480℃、490℃、510℃、520℃、530℃、540℃、
550℃, 560℃,570℃,580℃,590℃,600℃；Soaking time further includes but is not limited to 0.5h, 1.5h, 2h.
In view of the numerous embodiments of the scheme of the present invention, each embodiment experimental data is huge numerous, is not suitable for arranging one by one herein
Explanation is lifted, but the content verified required for each embodiment and obtained final conclusion are close, so herein not to each reality
The verifying content for applying example is explained one by one, and only illustrates the excellent place of the present patent application using embodiment 1 as representative.
Claimed midpoint of technical range is not exhaustive in this place embodiment, equally all wants in the present invention
In the range of asking protection.
Specific embodiment described herein is only an example for the spirit of the invention.The neck of technology belonging to the present invention
The technical staff in domain can do various modifications or supplement or is substituted in a similar manner to described specific embodiment, but simultaneously
Spirit or beyond the scope defined by the appended claims of the invention is not deviated by.
It is skilled to this field although present invention has been described in detail and some specific embodiments have been cited
For technical staff, as long as it is obvious for can making various changes or correct without departing from the spirit and scope of the present invention.
Claims (5)
1. a kind of BiVO4The preparation method of full mesoporous nano belt high efficiency photocatalyst, which is characterized in that the preparation method is that:
By PVP, Bi (NO3)3·5H2O、VO(acac)2, DIPA and DMF be configured to spinning liquid as precursor；
Prepared spinning liquid as precursor is obtained into organic precursor fiber through electrostatic spinning；
It dries obtained organic precursor fiber to obtain solid precursor fiber；
Obtained solid-state precursor fiber is obtained into BiVO through high temperature pyrolysis4Full mesoporous nano belt；
The PVP includes PVPk90And PVPk30, PVPk90And PVPk30Mass ratio be 1:(2-5)；
PVP, Bi (NO3)3·5H2O、VO(acac)2, DIPA and DMF mass ratio be (2-3): (1.5-2): 1:(1-2):
(3-4)。
2. a kind of BiVO according to claim 14The preparation method of full mesoporous nano belt high efficiency photocatalyst, feature exist
In the temperature of the high temperature pyrolysis is 400-600 DEG C, soaking time 0.5-2h.
3. one kind BiVO as described in claim 1-2 is any4The preparation method of full mesoporous nano belt high efficiency photocatalyst is prepared
BiVO4Full mesoporous nano belt high efficiency photocatalyst.
4. BiVO according to claim 34Full mesoporous nano belt high efficiency photocatalyst, which is characterized in that the BiVO4Entirely
Mesoporous nano belt high efficiency photocatalyst is nanobelt shape structure, and the nanobelt is full meso-hole structure.
5. a kind of BiVO as described in claim 3 or 44The application of full mesoporous nano belt high efficiency photocatalyst, which is characterized in that
The BiVO4Full mesoporous nano belt high efficiency photocatalyst is used for light degradation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447298.XA CN106076314B (en) | 2016-06-20 | 2016-06-20 | A kind of BiVO4Full mesoporous nano belt high efficiency photocatalyst and its preparation method and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610447298.XA CN106076314B (en) | 2016-06-20 | 2016-06-20 | A kind of BiVO4Full mesoporous nano belt high efficiency photocatalyst and its preparation method and application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106076314A CN106076314A (en) | 2016-11-09 |
| CN106076314B true CN106076314B (en) | 2019-06-21 |
Family
ID=57238003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610447298.XA Active CN106076314B (en) | 2016-06-20 | 2016-06-20 | A kind of BiVO4Full mesoporous nano belt high efficiency photocatalyst and its preparation method and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106076314B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109092319B (en) * | 2018-06-27 | 2022-04-26 | 宁波工程学院 | WO (WO)3/BiVO4Ternary system composite material of/FeOOH and preparation method and application thereof |
| CN110676432A (en) * | 2019-09-09 | 2020-01-10 | 江苏师范大学 | Preparation method and application of flexible antimony nanoparticle @ carbon nanowire negative electrode material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404653A (en) * | 2014-11-25 | 2015-03-11 | 宁波工程学院 | General preparation method of full-mesopore nano-fiber material |
| CN105410854A (en) * | 2015-11-16 | 2016-03-23 | 安徽强旺生物工程有限公司 | Low-sodium seasoning peptide salt |
| CN105435774A (en) * | 2015-12-17 | 2016-03-30 | 宁波工程学院 | BiVO4 full-mesoporous fiber material efficient photocatalyst |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080105535A1 (en) * | 2004-12-13 | 2008-05-08 | Osaka University | Composite Metal Oxide Photocatalyst Exhibiting Responsibility to Visible Light |
-
2016
- 2016-06-20 CN CN201610447298.XA patent/CN106076314B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104404653A (en) * | 2014-11-25 | 2015-03-11 | 宁波工程学院 | General preparation method of full-mesopore nano-fiber material |
| CN105410854A (en) * | 2015-11-16 | 2016-03-23 | 安徽强旺生物工程有限公司 | Low-sodium seasoning peptide salt |
| CN105435774A (en) * | 2015-12-17 | 2016-03-30 | 宁波工程学院 | BiVO4 full-mesoporous fiber material efficient photocatalyst |
Non-Patent Citations (1)
| Title |
|---|
| Preparation of porous BiVO4 fibers by electrospinning and their photocatalytic performance under visible light;Yongliang Cheng et al;《RSC Adv.》;20130827;第3卷;第20606-20612页 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106076314A (en) | 2016-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Liu et al. | Microwave-synthesis of g-C3N4 nanoribbons assembled seaweed-like architecture with enhanced photocatalytic property | |
| Lu et al. | Electrospinning fabrication of ZnWO4 nanofibers and photocatalytic performance for organic dyes | |
| Shengyuan et al. | Rice grain-shaped TiO 2 mesostructures—synthesis, characterization and applications in dye-sensitized solar cells and photocatalysis | |
| CN103240121B (en) | Porous g-C3N4 photocatalyst and preparation method thereof | |
| CN105384193B (en) | Preparation method of niobium (V) pentoxide urchin-like nano sphere and application of nano sphere as photocatalyst | |
| CN107115884B (en) | g-C3N4/TiO2Nano-wire assembled structure photocatalyst | |
| CN105126886B (en) | A kind of TiO2/WO3/g-C3N4The preparation method of full meso-porous nano fiber | |
| CN104404653A (en) | General preparation method of full-mesopore nano-fiber material | |
| CN105002599B (en) | High purity N adulterates the preparation method of the full meso-porous nano fibers of TiO2 | |
| CN113318764A (en) | Preparation method and application of nitrogen defect/boron doped tubular carbon nitride photocatalyst | |
| CN101301592A (en) | Preparation of polyimides/titanic oxide compound sub-micron fiber film | |
| CN106475125A (en) | Graphite phase carbon nitride and nano titanium oxide composite coating additive and preparation method | |
| CN106622323A (en) | Preparation method of multifunctional photoelectrocatalysis membrane with visible light response | |
| CN109735963A (en) | A kind of preparation method and applications of azotized carbon nano fiber | |
| CN105668612A (en) | Preparation method of hexagonal-tube-shaped indium oxide with complex as precursor | |
| CN106076314B (en) | A kind of BiVO4Full mesoporous nano belt high efficiency photocatalyst and its preparation method and application | |
| CN108745356A (en) | A kind of porous WO of precious metals pt load3Nanofiber photocatalyst and preparation method | |
| CN110327914B (en) | Tungsten trioxide/cadmium tungstate nanofiber photocatalytic material and preparation method and application thereof | |
| Liu et al. | Electrospinning synthesis of InVO 4/BiVO 4 heterostructured nanobelts and their enhanced photocatalytic performance | |
| CN107151834A (en) | A kind of magnetic Fe3O4Nano-fiber material, preparation method and its application in the reaction of class Catalyzed Synthesis By Peroxidase | |
| CN109482241A (en) | TiO2/ MOF-5 photochemical catalyst and preparation method thereof | |
| CN106111181A (en) | Porous graphene zeolite BiOX catalysis material and preparation and application | |
| CN104043471A (en) | Preparation method of graphene/Ta3N5 composite photo-catalyst | |
| CN104826643A (en) | Ta3N5/CdS heterojunction fiber photocatalyst and preparation method thereof | |
| CN105126892B (en) | A kind of TiO2/WO3/g-C3N4Full application of the meso-porous nano fiber in high efficiency photocatalyst |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |