CN106086991A - A kind of controlling type metal ion doping TiO in situ2the preparation method of nano-tube array - Google Patents
A kind of controlling type metal ion doping TiO in situ2the preparation method of nano-tube array Download PDFInfo
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- 229910021645 metal ion Inorganic materials 0.000 title claims abstract description 53
- 238000002360 preparation method Methods 0.000 title claims abstract description 28
- 238000011065 in-situ storage Methods 0.000 claims abstract description 25
- 230000001276 controlling effect Effects 0.000 claims abstract description 22
- 229910001069 Ti alloy Inorganic materials 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 11
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 7
- 239000011737 fluorine Substances 0.000 claims abstract description 7
- 230000001105 regulatory effect Effects 0.000 claims abstract description 7
- 238000011978 dissolution method Methods 0.000 claims abstract description 6
- 238000002386 leaching Methods 0.000 claims abstract description 4
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- 239000000243 solution Substances 0.000 claims description 44
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- DDFHBQSCUXNBSA-UHFFFAOYSA-N 5-(5-carboxythiophen-2-yl)thiophene-2-carboxylic acid Chemical compound S1C(C(=O)O)=CC=C1C1=CC=C(C(O)=O)S1 DDFHBQSCUXNBSA-UHFFFAOYSA-N 0.000 claims description 12
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- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000010936 titanium Substances 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000004090 dissolution Methods 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 150000002739 metals Chemical class 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910052720 vanadium Inorganic materials 0.000 claims description 3
- 229910052726 zirconium Inorganic materials 0.000 claims description 3
- 101100139835 Homo sapiens RAC1 gene Proteins 0.000 claims description 2
- 101000686227 Homo sapiens Ras-related protein R-Ras2 Proteins 0.000 claims description 2
- 101000666657 Homo sapiens Rho-related GTP-binding protein RhoQ Proteins 0.000 claims description 2
- 101000658138 Homo sapiens Thymosin beta-10 Proteins 0.000 claims description 2
- 229910052779 Neodymium Inorganic materials 0.000 claims description 2
- 102100022122 Ras-related C3 botulinum toxin substrate 1 Human genes 0.000 claims description 2
- 102100025003 Ras-related protein R-Ras2 Human genes 0.000 claims description 2
- 101000702105 Rattus norvegicus Sproutin Proteins 0.000 claims description 2
- 102100038339 Rho-related GTP-binding protein RhoQ Human genes 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 2
- 102100034998 Thymosin beta-10 Human genes 0.000 claims description 2
- 229910052804 chromium Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 229910052758 niobium Inorganic materials 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052715 tantalum Inorganic materials 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 20
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 15
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- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000003054 catalyst Substances 0.000 abstract description 2
- 239000002019 doping agent Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- 239000008367 deionised water Substances 0.000 description 16
- 229910021641 deionized water Inorganic materials 0.000 description 16
- 230000000694 effects Effects 0.000 description 9
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- 239000000956 alloy Substances 0.000 description 8
- 238000005868 electrolysis reaction Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 8
- 239000004576 sand Substances 0.000 description 8
- 238000004506 ultrasonic cleaning Methods 0.000 description 8
- MCPLVIGCWWTHFH-UHFFFAOYSA-L methyl blue Chemical compound [Na+].[Na+].C1=CC(S(=O)(=O)[O-])=CC=C1NC1=CC=C(C(=C2C=CC(C=C2)=[NH+]C=2C=CC(=CC=2)S([O-])(=O)=O)C=2C=CC(NC=3C=CC(=CC=3)S([O-])(=O)=O)=CC=2)C=C1 MCPLVIGCWWTHFH-UHFFFAOYSA-L 0.000 description 6
- 238000007146 photocatalysis Methods 0.000 description 6
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 3
- 230000001699 photocatalysis Effects 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 2
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- 239000003792 electrolyte Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 241000186216 Corynebacterium Species 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910001423 beryllium ion Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
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- 239000000203 mixture Substances 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/26—Anodisation of refractory metals or alloys based thereon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- Condensed Matter Physics & Semiconductors (AREA)
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Abstract
The present invention relates to controlling type metal ion doping TiO in situ2The preparation method of nano-tube array, comprises the following steps: 1) with titanium alloy sheet or titanium alloy bar as anode, Pt sheet or Pt rod are negative electrode, prepares metal ion doping TiO in situ at fluorine-containing solution Anodic Oxidation2Nano-tube array, cleans sample；2) by choosing appropriate acid or aqueous slkali, the acid of ultrasonic wave added selectivity or alkali dissolution method leaching section metal ion are used, it is achieved the quantitatively regulating and controlling of metal ion content in nano-tube array；3) clean after having regulated and controled, drying to obtain controlling type metal ion doping TiO in situ2Nano-tube array.Advantages of the present invention and having the beneficial effects that: with titanium alloy as base material, not only simplifies metal ion mixing TiO2The preparation technology of nano-tube array, also makes dopant ion disperse evenly；Using ultrasonic wave added Selective dissolution method convenient can controllably regulate metal ion mixing amount, the catalyst excellent for processability provides reliable method.
Description
Technical field
The invention belongs to field of nano material preparation, relate to a kind of controlling type metal ion doping TiO in situ2Nanotube battle array
The preparation method of row.
Background technology
TiO2Nano-tube array has light (electric) catalysis activity and the chemical stability of excellence, is widely used in light (electric) and urges
Change fields such as producing hydrogen, light (electric) catalysis treatment environmental contaminants and solaode.Energy is formed relatively low after metal ion mixing
Doped energy-band to absorb visible ray, widen spectral response range, simultaneously can also be at TiO2Surface forms Lacking oxygen, promotes Ti3 +The formation of oxidation center, beneficially electric charge capture and suppress electron-hole be combined, promote photo-quantum efficiency.At present, metal from
Son doping TiO2Nano-tube array mainly uses the later stage incorporation way of routine, the most first prepares TiO2Nano-tube array, then by changing
Metal ion is introduced to TiO by the methods such as or electrochemistry2Nano-tube array surface.But it is difficult to there are following two aspects in which
Topic:
1.TiO2Being enclosed construction at the bottom of nano-tube array pipe, metal ion enters from the mouth of pipe, relies on diffusion in pipe
Input, because in pipe, solution lacks mobility, metal ion is easily formed concentration difference during diffusing at the bottom of pipe, makes orifice region
Metal ion solubility is higher, deposits the most more, and relatively low close to the metal ion solubility in territory, pipe base area, deposits the most less, metal
Ion concentration difference causes the phenomenon that doping is uneven；
2.TiO2Nano-tube array structure is fine and close, and between tube and tube, space is the least, and pipe outer wall is difficult to effective adhesion metal
Oxide.
A these two aspects difficult problem causes major part metal-oxide to concentrate at tube opening, and degree of scatter is poor, at tube opening
Doping effect is preferable, but along with effect of adulterating in the extension of pipe range is gradually reduced, and pipe outer wall is difficult to adulterate.In recent years,
Researchers use and introduce method in advance to TiO2Nano-tube array carries out metal ion mixing, achieves good effect.The party
Method replaces pure titanium to make electrolytic anode with titanium alloy, introduces doping metals in advance, is prepared for the TiO of metal ion doping in situ2Receive
Mitron array.But the metal-doped amount introduced in advance is mainly determined by titanium alloy component, therefore there is metal ion and mix in the method
Miscellaneous ratio is difficult to the problem regulated and controled.Numerous researchs show that doping ratio is metal ion-modified TiO2Photocatalysis performance decisive
One of factor.Such as systematic studys such as Choi, 21 metal ion species of different doping ratios (0.1-3at%) are to TiO2Photocatalysis
The impact of activity, finds in addition to without the metal ion of modified effect, nano-TiO2Photocatalysis performance with metal ion mixing ratio
The increase of example, shows and first rises the parabolic type Changing Pattern declined afterwards, and research thinks that doping needs to control suitable
Ratio (about 0.5at%), the very few effect that can not give full play to doping of ratio, cross and can cause substantial amounts of fault of construction, shape at most
Become the complex centre of electron-hole.The examens such as L ó pez different proportion (0.1-5wt%) Cu dopen Nano TiO2Property
Can, find that the doping ratio of 0.5wt% has optimal photocatalysis performance, the doping ratio effect phase of 1wt% and 0.1wt%
When, more excessive doping can cause the degeneration of performance.In titanium alloy, alloying component content is the highest, nanotube prepared therefrom
The problem that array may there is also metal ion mixing excess.Therefore, to metal ion doping TiO in situ2Nano-tube array enters
Row reprocessing, to optimize the doping ratio of metal ion, can realize the optimization of photocatalysis performance.
Summary of the invention
The technical problem to be solved is to provide a kind of low cost, technique simple controlling type metal ion in situ
Doping TiO2The preparation method of nano-tube array.
The present invention solves above-mentioned technical problem and be the technical scheme is that the doping in situ of a kind of controlling type metal ion
TiO2The preparation method of nano-tube array, comprises the following steps:
1) with titanium alloy sheet or titanium alloy bar as anode, Pt sheet or Pt rod are negative electrode, in fluorine-containing solution Anodic Oxidation system
Standby metal ion doping TiO in situ2Nano-tube array, cleans sample；
2) utilize the chemical property difference of doping metals and Ti, by choosing appropriate acid or aqueous slkali, and accurately control
Leaching condition, uses the acid of ultrasonic wave added selectivity or alkali dissolution method leaching section metal ion, it is achieved metal in nano-tube array
The quantitatively regulating and controlling of ion concentration；
3) clean after having regulated and controled, drying to obtain controlling type metal ion doping TiO in situ2Nano-tube array.
By such scheme, step 1) described in anodised voltage be 5-50V, temperature is 20-50 DEG C, and the time is
30min-4h。
By such scheme, step 2) described in ultrasonic wave added use ultrasonic frequency be 30-60KHz.
By such scheme, step 2) described in solution temperature be 20-60 DEG C, dissolution time is 20min-4h.
By such scheme, described titanium alloy is TA5, TA6, TA7, TA10, TA11, TA12, TA13, TA14, TA15,
TA16、TA17、TA18、TA19、TA20、TA21、TA22、TA23、TA24、TA25、TA26、TA28、TB2、TB3、TB4、TB5、
TB6、TB7、TB8、TB9、TB10、TB11、TC1、TC2、TC3、TC4、TC6、TC8、TC9、TC10、TC11、TC15、TC16、
TC17, TC18, TC19, TC20, TC21, TC22, TC23, TC24, TC25 or TC26.
By such scheme, the described inorganic solution that fluorine-containing solution is the organic solution containing ammonium fluoride or hydrofluoric acid containing.
By such scheme, the described water that fluorine-containing solution is the ethylene glycol containing ammonium fluoride, glycerin solution or hydrofluoric acid containing
Solution.
By such scheme, described metal ion be doped in situ Al, Cu, Fe, Sn, V, Cr, Mo, Nb, Mn, Ni, Zr,
Single ionic doping in Ta, W, Nd, Ru and Pd ion or different kinds of ions codope.
By such scheme, described acid solution is HCl, H2SO4、HNO3Or H3PO4Solution, described aqueous slkali be NaOH,
KOH、Ca(OH)2Or Mg (OH)2Solution.
By such scheme, the acid solution pH added is 1-4, and it is 10-13 that the aqueous slkali added controls pH.
The present invention uses titanium alloy to be that base material shell realizes more excellent metal ion mixing effect, for realizing metal ion
Regulation and control, keep the structure of nano-tube array not to be destroyed simultaneously, and the ultrasonic wave added Selective dissolution method developing gentleness first is adjusted
Control metal ion content, under the ultrasonic assistant of lower frequency, suitable acid or aqueous slkali can go deep into inside nanotube, can
The dissolution metal ion of control, it is achieved controlling type metal ion doping TiO in situ2The preparation of nano-tube array.
Advantages of the present invention and having the beneficial effects that:
1., with titanium alloy as base material, not only simplify metal ion mixing TiO2The preparation technology of nano-tube array, also makes to mix
Heteroion disperses evenly；
2. use ultrasonic wave added Selective dissolution method convenient can controllably regulate metal ion mixing amount, excellent for processability
Good catalyst provides reliable method.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further described in detail, and this explanation will not constitute the limit for the present invention
System.
Embodiment 1
The TA5 alloy sheet that thickness is 2mm is cut to 2 × 8cm2Strip, by making after sand papering ultrasonic cleaning
Stand-by anode, is electrolysed containing 2wt% water, the ethylene glycol solution of 0.3wt% ammonium fluoride with same size Pt sheet for negative electrode preparation
Matter.Electrolytic process uses two electrode DC electrolysis systems, and voltage is 50V, and temperature is 20 DEG C, and the time is 30min.After being electrolysed
With the residual liquid of deionized water rinsing anode surface, then impregnated in the HCl solution that pH is 1 of constant temperature 20 DEG C, 30KHz frequency
Under take out after ultrasonic 2h and rinse well with deionized water, obtain the TiO of 1.5wt%Al ion doping2Nano-tube array.Should
Nano-tube array and conventional TiO2It is 10mg/L methyl blue solution that nano-tube array is applied to the initial solubility of ultraviolet degradation, due to
The Al ion doping of 1.5wt%, contrast finds that the Methyl blueness efficiency of this nano-tube array is better than the TiO of routine2
Nano-tube array, after 2h degraded, the residue solubility of methyl blue solution is respectively 1.0mg/L and 1.3mg/L.
Embodiment 2
By the corynebacterium of the TA6 long 8cm of alloy bar cutting of a diameter of 2cm, by treating after sand papering ultrasonic cleaning
With anode, with 2 × 8cm2Pt sheet be that negative electrode preparing is electrolysed containing 2wt% water, the glycerin solution of 0.3wt% ammonium fluoride
Matter.Electrolytic process uses two electrode DC electrolysis systems, and voltage is 40V, and temperature is 30 DEG C, and the time is 1h.Use after being electrolysed
The residual liquid of deionized water rinsing anode surface, then impregnated in the H that pH is 3 of constant temperature 30 DEG C3PO4In solution, 30KHz frequency
Under take out after ultrasonic 4h and rinse well with deionized water, obtain 2wt%Al ion and the ion co-doped TiO of 1wt%Sn2Nanometer
Pipe array.By this nano-tube array and conventional TiO2It is 10mg/L methyl that nano-tube array is applied to the initial solubility of ultraviolet degradation
Blue solution, owing to the Al ion of 2wt% and the Sn of 1wt% are ion co-doped, contrast finds the photocatalysis fall of this nano-tube array
Solve methyl blue efficiency and be better than the TiO of routine2Nano-tube array, after 2h degraded, the residue solubility of methyl blue solution is respectively 0.9mg/
L and 1.3mg/L.
Embodiment 3
The TA10 alloy sheet that thickness is 2mm is cut to 2 × 8cm2Strip, by making after sand papering ultrasonic cleaning
Stand-by anode, is electrolysed containing 2wt% water, the ethylene glycol solution of 0.3wt% ammonium fluoride with same size Pt sheet for negative electrode preparation
Matter.Electrolytic process uses two electrode DC electrolysis systems, and voltage is 30V, and temperature is 40 DEG C, and the time is 2h.Use after being electrolysed
The residual liquid of deionized water rinsing anode surface, then impregnated in the H that pH is 4 of constant temperature 40 DEG C2SO4In solution, 40KHz frequency
Under take out after ultrasonic 20min and rinse well with deionized water, obtain 0.2wt%Mo ion and 0.5wt%Ni be ion co-doped
TiO2Nano-tube array.By this nano-tube array and conventional TiO2Nano-tube array is applied to the initial solubility of ultraviolet degradation
10mg/L methyl blue solution, owing to the Mo ion of 0.2wt% and the Ni of 0.5wt% are ion co-doped, contrast finds this nanotube
The Methyl blueness efficiency of array is better than the TiO of routine2Nano-tube array, after 2h degraded, the residue of methyl blue solution is molten
Degree is respectively 0.5mg/L and 1.3mg/L.
Embodiment 4
The TA11 alloy sheet that thickness is 2mm is cut to 2 × 8cm2Strip, by making after sand papering ultrasonic cleaning
Stand-by anode, is electrolysed containing 2wt% water, the ethylene glycol solution of 0.3wt% ammonium fluoride with same size Pt sheet for negative electrode preparation
Matter.Electrolytic process uses two electrode DC electrolysis systems, and voltage is 20V, and temperature is 50 DEG C, and the time is 3h.Use after being electrolysed
The residual liquid of deionized water rinsing anode surface, then impregnated in the NaOH solution that pH is 12 of constant temperature 50 DEG C, 50KHz frequency
Under take out after ultrasonic 2h and rinse well with deionized water, obtain 1.5wt%Al ion, 0.4wt%Mo and 0.3wt%V ion
Codope TiO2Nano-tube array.
Embodiment 5
The TA13 alloy sheet that thickness is 2mm is cut to 2 × 8cm2Strip, by making after sand papering ultrasonic cleaning
Stand-by anode, with same size Pt sheet for negative electrode preparation, the aqueous solution containing 0.3wt% ammonium fluoride makees electrolyte.Electrolytic process is adopted
With two electrode DC electrolysis systems, voltage is 10V, and temperature is 30 DEG C, and the time is 1h.With deionized water rinsing sun after being electrolysed
The residual liquid on surface, pole, then impregnated in the HCl solution that pH is 4 of constant temperature 60 DEG C, take out also after ultrasonic 3h under 60KHz frequency
Rinse well with deionized water, obtain the TiO of 0.5wt Cu ion doping2Nano-tube array.
Embodiment 6
The TA23 alloy sheet that thickness is 2mm is cut to 2 × 8cm2Strip, by making after sand papering ultrasonic cleaning
Stand-by anode, with same size Pt sheet for negative electrode preparation, the aqueous solution containing 0.3wt% ammonium fluoride makees electrolyte.Electrolytic process is adopted
With two electrode DC electrolysis systems, voltage is 5V, and temperature is 30 DEG C, and the time is 1h.With deionized water rinsing sun after being electrolysed
The residual liquid on surface, pole, then the pH that impregnated in constant temperature 30 DEG C be 13 KOH solution in, under 50KHz frequency after ultrasonic 40min
Take out and rinse well with deionized water, obtaining the ion co-doped TiO of 0.8wt%Al, 1.1wt%Zr and 0.3wt%Fe2Nanometer
Pipe array.
Embodiment 7
The TC2 alloy sheet that thickness is 2mm is cut to 2 × 8cm2Strip, by making after sand papering ultrasonic cleaning
Stand-by anode, is electrolysed containing 2wt% water, the ethylene glycol solution of 0.3wt% ammonium fluoride with same size Pt sheet for negative electrode preparation
Matter.Electrolytic process uses two electrode DC electrolysis systems, and voltage is 50V, and temperature is 30 DEG C, and the time is 4h.Use after being electrolysed
The residual liquid of deionized water rinsing anode surface, then impregnated in the Mg that pH is 10 (OH) of constant temperature 30 DEG C2In solution, 50KHz
Take out after ultrasonic 4h under frequency and rinse well with deionized water, obtaining the ion co-doped TiO of 2.1wt%Al and 0.5wt%Mn2
Nano-tube array.
Embodiment 8
The TB7 alloy sheet that thickness is 2mm is cut to 2 × 8cm2Strip, by making after sand papering ultrasonic cleaning
Stand-by anode, is electrolysed containing 2wt% water, the ethylene glycol solution of 0.3wt% ammonium fluoride with same size Pt sheet for negative electrode preparation
Matter.Electrolytic process uses two electrode DC electrolysis systems, and voltage is 50V, and temperature is 30 DEG C, and the time is 4h.Use after being electrolysed
The residual liquid of deionized water rinsing anode surface, then impregnated in the Ca that pH is 11 (OH) of constant temperature 30 DEG C2In solution, 50KHz
Take out after ultrasonic 4h under frequency and rinse well with deionized water, obtaining the TiO of 4.8wt%Mo ion doping2Nano-tube array.
Claims (10)
1. a controlling type metal ion doping TiO in situ2The preparation method of nano-tube array, comprises the following steps:
1) with titanium alloy sheet or titanium alloy bar as anode, Pt sheet or Pt rod are negative electrode, at fluorine-containing solution Anodic Oxidation preparation gold
Belong to ion doping TiO in situ2Nano-tube array, cleans sample；
2) utilize the chemical property difference of doping metals and Ti, by choosing appropriate acid or aqueous slkali, and accurately control to leach
Condition, uses the acid of ultrasonic wave added selectivity or alkali dissolution method leaching section metal ion, it is achieved metal ion in nano-tube array
The quantitatively regulating and controlling of content；
3) clean after having regulated and controled, drying to obtain controlling type metal ion doping TiO in situ2Nano-tube array.
2. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature exists
In step 1) described in anodised voltage be 5-50V, temperature is 20-50 DEG C, the time is 30min-4h.
3. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature exists
In step 2) described in the ultrasonic frequency that uses of ultrasonic wave added be 30-60KHz.
4. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature exists
In step 2) described in solution temperature be 20-60 DEG C, dissolution time is 20min-4h.
5. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature exists
In: described titanium alloy is TA5, TA6, TA7, TA10, TA11, TA12, TA13, TA14, TA15, TA16, TA17, TA18,
TA19、TA20、TA21、TA22、TA23、TA24、TA25、TA26、TA28、TB2、TB3、TB4、TB5、TB6、TB7、TB8、TB9、
TB10、TB11、TC1、TC2、TC3、TC4、TC6、TC8、TC9、TC10、TC11、TC15、TC16、TC17、TC18、TC19、
TC20, TC21, TC22, TC23, TC24, TC25 or TC26.
6. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature exists
In: the described inorganic solution that fluorine-containing solution is the organic solution containing ammonium fluoride or hydrofluoric acid containing.
7. the doping TiO in situ of the controlling type metal ion as described in claim 62The preparation method of nano-tube array, its feature exists
In: the described aqueous solution that fluorine-containing solution is the ethylene glycol containing ammonium fluoride, glycerin solution or hydrofluoric acid containing.
8. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature exists
In: described metal ion is doped to Al, Cu, Fe, Sn, V, Cr, Mo, Nb, Mn, Ni, Zr, Ta, W, Nd, Ru and Pd ion in situ
In single ionic doping or different kinds of ions codope.
9. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature exists
In: described acid solution is HCl, H2SO4、HNO3Or H3PO4Solution, described aqueous slkali is NaOH, KOH, Ca (OH)2Or Mg
(OH)2Solution.
10. the doping TiO in situ of the controlling type metal ion as described in claim 12The preparation method of nano-tube array, its feature
Being: the acid solution pH added is 1-4, it is 10-13 that the aqueous slkali added controls pH.
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