CN101863509A - A rutile phase TiO2 nanowire array synthesized by soft chemistry-hydrothermal technology and its preparation method - Google Patents
A rutile phase TiO2 nanowire array synthesized by soft chemistry-hydrothermal technology and its preparation method Download PDFInfo
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- CN101863509A CN101863509A CN200910135050A CN200910135050A CN101863509A CN 101863509 A CN101863509 A CN 101863509A CN 200910135050 A CN200910135050 A CN 200910135050A CN 200910135050 A CN200910135050 A CN 200910135050A CN 101863509 A CN101863509 A CN 101863509A
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- tetrabutyl titanate
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- 239000002070 nanowire Substances 0.000 title claims abstract description 28
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005516 engineering process Methods 0.000 title abstract description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 75
- 239000011521 glass Substances 0.000 claims abstract description 48
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 26
- YHWCPXVTRSHPNY-UHFFFAOYSA-N butan-1-olate;titanium(4+) Chemical compound [Ti+4].CCCC[O-].CCCC[O-].CCCC[O-].CCCC[O-] YHWCPXVTRSHPNY-UHFFFAOYSA-N 0.000 claims abstract description 26
- XJDNKRIXUMDJCW-UHFFFAOYSA-J titanium tetrachloride Chemical compound Cl[Ti](Cl)(Cl)Cl XJDNKRIXUMDJCW-UHFFFAOYSA-J 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 17
- 229910010413 TiO 2 Inorganic materials 0.000 claims abstract description 16
- 239000008367 deionised water Substances 0.000 claims abstract description 12
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 7
- 230000001699 photocatalysis Effects 0.000 claims abstract description 7
- 230000035484 reaction time Effects 0.000 claims abstract description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 3
- 239000010935 stainless steel Substances 0.000 claims abstract description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 18
- 238000001816 cooling Methods 0.000 claims description 11
- 238000005406 washing Methods 0.000 claims description 11
- 238000005303 weighing Methods 0.000 claims description 2
- 239000011941 photocatalyst Substances 0.000 abstract description 18
- 239000002904 solvent Substances 0.000 abstract description 10
- 239000000463 material Substances 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 230000002194 synthesizing effect Effects 0.000 abstract description 2
- 238000003491 array Methods 0.000 abstract 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 238000001035 drying Methods 0.000 abstract 1
- LIKMAJRDDDTEIG-UHFFFAOYSA-N 1-hexene Chemical compound CCCCC=C LIKMAJRDDDTEIG-UHFFFAOYSA-N 0.000 description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000002071 nanotube Substances 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000006056 electrooxidation reaction Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000001027 hydrothermal synthesis Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
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Abstract
本发明公开了一种软化学-水热技术合成金红石相TiO2纳米线阵列的方法，特点是制备温度低、应用工艺简单，所得光催化剂比表面积大、光催化活性高、含有以金红石相为主体的TiO2纳米线阵列。本发明将盐酸、甲苯、四氯化钛和钛酸四丁酯按一定比例称取，以甲苯为溶剂，分别配制一定浓度的四氯化钛和钛酸四丁酯溶液，具体步骤如下：(1)将用乙醇溶液清洗过的载玻片，放入超声波清洗仪中清洗数分钟后，再用去离子水清洗干净。(2)按照化学计量比分别称取一定量的钛酸四丁酯和四氯化钛，并将其分别溶于一定量的甲苯溶液中；(3)将清洗干净的载玻片放入不锈钢材质，白色聚四氟乙烯内衬的密闭反应釜中，并加入一定量的盐酸。(4)以玻璃棒引流，缓慢加入一定量的甲苯、钛酸四丁酯和四氯化钛溶液。(5)将反应釜放入干燥箱内进行热处理，反应温度为130～180℃，反应时间为6～22h.(6)在室温中将反应釜自然冷却，将载玻片取出干燥。即可得到TiO2纳米线阵列。
The invention discloses a method for synthesizing rutile phase TiO2 nanowire arrays by soft chemistry-hydrothermal technology, which is characterized by low preparation temperature and simple application process, and the obtained photocatalyst has large specific surface area, high photocatalytic activity, and contains rutile phase as Host TiO2 nanowire arrays. In the present invention, hydrochloric acid, toluene, titanium tetrachloride and tetrabutyl titanate are weighed in a certain proportion, and toluene is used as a solvent to prepare respectively a certain concentration of titanium tetrachloride and tetrabutyl titanate solutions. The specific steps are as follows: ( 1) Put the glass slide cleaned with ethanol solution into an ultrasonic cleaner for a few minutes, and then clean it with deionized water. (2) Take a certain amount of tetrabutyl titanate and titanium tetrachloride respectively according to the stoichiometric ratio, and dissolve them in a certain amount of toluene solution respectively; (3) Put the cleaned glass slide into stainless steel Material, white polytetrafluoroethylene-lined airtight reaction kettle, and add a certain amount of hydrochloric acid. (4) Drainage with a glass rod, slowly add a certain amount of toluene, tetrabutyl titanate and titanium tetrachloride solution. (5) Put the reaction kettle into a drying oven for heat treatment, the reaction temperature is 130-180°C, and the reaction time is 6-22h. (6) Cool the reaction kettle naturally at room temperature, and take out the glass slide to dry. TiO 2 nanowire arrays can be obtained.
Description
Technical field
The present invention relates to a kind of nano-wire array photocatalyst and preparation method thereof, relate to the softening-hydrothermal technique titania phase TiO of a kind of employing in particular
2The method of nano-wire array photocatalyst belongs to the science and technology field that Materials science and catalytic science intersect.
Background technology
Utilize photocatalyst decomposing organic matter under rayed to become one of great research topic of polluting control, and obtained a series of progress.But the photocatalyst TiO that is most widely used
2Majority is to exist with form Powdered or the film attitude, but powder catalyst separates and the recovery difficulty, film attitude TiO
2The specific surface area of photocatalyst is low.Therefore, people wish that development structure is controlled, specific surface area is big, easily separated, TiO efficiently
2Photocatalyst.
In recent years, by the regulation and control nanometer material structure, the monodimension nanometer material of novelties such as assembling nanometer line, nanotube, nanometer rod becomes the focus of research.The orderly TiO of one dimension wherein
2Nano-wire array has excellent physical chemistry such as controllable structure, specific surface area are big, carrier mobility efficient height, demonstrates wide application prospect in photocatalysis field.Present TiO
2The preparation method of nano-array has on the high purity titanium sheet and prepares TiO
2The electrochemical oxidation process of nano-tube array utilizes porous anodic aluminium oxide (AAO) as template, in conjunction with sol-gel, electrochemical deposition, hydrolysis method, and the orderly TiO of the one dimension of preparation
2Nano wire or nano-tube array.But these methods need special equipment and instrument, and preparation technology is complicated.This patent has provided a kind of softening orderly rutile phase TiO of-hydrothermal method synthesizing one-dimensional that adopts
2The technology of nano-wire array.
Summary of the invention
In order to overcome the weak point in the existing photocatalyst technology of preparing, purpose provides the new Ti O that a kind of application art is simple, specific surface area is big, catalytic activity is high
2The synthetic method of nano-wire array photocatalyst.
The invention provides a kind of new Ti O
2There is orderly nano-wire array in the nano-wire array photocatalyst in photocatalyst, crystallization TiO
2Crystalline phase be rutile structure, the diameter of nano-wire array is about 100～300nm.
Photocatalyst outward appearance of the present invention is the canescence film, has good photocatalytic activity.
TiO with photocatalytic activity of the present invention
2The softening length of schooling Preparation Method of nano-wire array, concrete step is as follows:
(1) slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.
(2) take by weighing a certain amount of tetrabutyl titanate and titanium tetrachloride respectively according to stoichiometric ratio, and it is dissolved in respectively in a certain amount of toluene solution;
(3) slide glass that cleans up is put into stainless steel, in the closed reactor of white polytetrafluoroethylpipe liner, and add a certain amount of hydrochloric acid.
(4), slowly add a certain amount of toluene, tetrabutyl titanate and titanium tetrachloride solution with the glass stick drainage.
(5) reactor is put into loft drier and heat-treat, temperature of reaction is 130～180 ℃, and the reaction times is 6～22h.
(6) at room temperature with the reactor naturally cooling, outwell the TiO that solution can obtain generating on slide glass
2Nano-wire array.
The beneficial effect of the technology of the present invention is new Ti O
2Preparation technology's temperature of reaction of nano-wire array photocatalyst is low, technology is simple to operation, need not high-temperature heat treatment, cost reduces, gained photocatalyst specific surface area is big, photocatalytic activity is high.Characterize the back after tested and find, adopt the TiO of this method preparation
2The nano-wire array photocatalyst, the degree of crystallinity height, specific surface area is big.The photochemical catalysis experimental result shows: the 50ml concentration that contains the 0.15g photocatalyst be the percent of decolourization of tropeolin-D under the 250W high voltage mercury lamp radiation of 20mg/L behind 1h near 100%, the result shows the TiO that adopts softening-Hydrothermal Preparation
2The nano-wire array photocatalyst has good photocatalytic activity.
Description of drawings
Fig. 1: synthetic TiO under the differing temps
2The SEM photo of nano-wire array: (a) 180 ℃, (b) 150 ℃,
Fig. 2: adopt the synthetic TiO of softening-hydrothermal technique
2The XRD spectra of nano-wire array;
Embodiment
The invention will be further described below in conjunction with embodiment.
Embodiment 1:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mol/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 180 ℃ the baking oven, behind the 22h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Embodiment 2:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 180 ℃ the baking oven, behind the 14h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Embodiment 3:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 180 ℃ the baking oven, behind the 6h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Example 4:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 150 ℃ the baking oven, behind the 22h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Embodiment 5:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 150 ℃ the baking oven, behind the 14h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Embodiment 6:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution in reactor,, making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 150 ℃ the baking oven, behind the 6h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Example 7:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 130 ℃ the baking oven, behind the 22h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Embodiment 8:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 130 ℃ the baking oven, behind the 14h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
Embodiment 9:
The slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.Putting it into inside is equipped with in the sealed reactor of poly-tetrafluoro hexene liner standby.With toluene is solvent, and configuration concentration is the tetrabutyl titanate solution of 1mon/L and the titanium tetrachloride solution of 1mon/L respectively.With the glass stick drainage, slowly add a certain amount of concentrated hydrochloric acid, toluene, tetrabutyl titanate solution and titanium tetrachloride solution are in reactor, and making its volume ratio is 1: 10: 1: 1.Again reactor is placed on temperature and is in 130 ℃ the baking oven, behind the 6h with its taking-up.Treat after its cooling the slide glass of bottom to be taken out, on slide glass, will obtain TiO
2The nanometer linear array.
The present invention open with disclose contain rutile new Ti O mutually
2Nano-wire array photocatalyst and softening-hydrothermal preparing process thereof can be by using for reference this paper disclosure, although the present invention is described by preferred embodiment, but those skilled in the art obviously can change content described herein in not breaking away from content of the present invention, spirit and scope, or increase and decrease some condition, in particular, replacement that all are similar and change are conspicuous to those skilled in the art, and they are regarded as being included in spirit of the present invention, scope and the content.
Claims (5)
1. one kind is adopted softening-hydrothermal technique titania phase TiO
2The method of nano-wire array is characterized in that preparation temperature is low, application art is simple, and it is big to make the sample specific surface area.
2.-hydrothermal technique titania phase TiO is softened in a kind of employing as claimed in claim 1
2Nano-wire array, the diameter that it is characterized in that nano wire is about 100-300nm.
3.-hydrothermal technique titania phase TiO is softened in a kind of employing as claimed in claim 1
2Nano-wire array is characterized in that TiO
2Structure be the rutile phase.
4.-hydrothermal technique titania phase TiO is softened in a kind of employing as claimed in claim 1
2Nano-wire array is characterized in that the photocatalytic activity height, 20mg/L tropeolin-D can be degraded fully in 1h.
5. a kind of TiO as claimed in claim 1
2Softening-the hydrothermal preparing process of nano-wire array, step is as follows:
(1) slide glass that will clean with ethanolic soln is put into ultrasonic washing instrument and is cleaned after several minutes, cleans up with deionized water again.
(2) take by weighing a certain amount of tetrabutyl titanate and titanium tetrachloride respectively according to stoichiometric ratio, and it is dissolved in respectively in a certain amount of toluene solution;
(3) slide glass that cleans up is put into stainless steel, in the closed reactor of white polytetrafluoroethylpipe liner, and add a certain amount of hydrochloric acid.
(4), slowly add a certain amount of tetrabutyl titanate and titanium tetrachloride solution along the reactor inwall with the glass stick drainage.
(5) reactor is put into loft drier and heat-treat, temperature of reaction is 130～180 ℃, and the reaction times is 6～22h.
(6) at room temperature with the reactor naturally cooling, outwell the TiO that solution can obtain generating on slide glass
2Nano-wire array.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086045A (en) * | 2010-11-17 | 2011-06-08 | 北京大学 | TiO2 secondary nanorod array and its preparation method and application |
| CN102086528A (en) * | 2010-12-14 | 2011-06-08 | 桂林理工大学 | Preparation method for titanium dioxide monocrystalline nano wire array film |
| CN104828863A (en) * | 2015-05-14 | 2015-08-12 | 西南科技大学 | Method for controlling the diameter of TiO2 nanowires and TiO2 nanowire arrays prepared therefrom |
| CN105036189A (en) * | 2015-07-30 | 2015-11-11 | 东华大学 | A method for preparing nano-TiO2 arrays on porous silicon substrates by hydrothermal method |
| CN105514281A (en) * | 2016-02-02 | 2016-04-20 | 吉林大学 | After-treatment method for inorganic nanopillar array electron transfer layer of polymer solar cell |
| CN113731329A (en) * | 2021-08-31 | 2021-12-03 | 沈阳工程学院 | Titanium tetrachloride aqueous solution preparation device |
| CN117658207A (en) * | 2023-11-09 | 2024-03-08 | 广州市浩立生物科技有限公司 | Preparation method and application of nano titanium dioxide powder |
-
2009
- 2009-04-16 CN CN200910135050A patent/CN101863509A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102086045A (en) * | 2010-11-17 | 2011-06-08 | 北京大学 | TiO2 secondary nanorod array and its preparation method and application |
| CN102086045B (en) * | 2010-11-17 | 2012-11-07 | 北京大学 | TiO2 secondary nanorod array and its preparation method and application |
| CN102086528A (en) * | 2010-12-14 | 2011-06-08 | 桂林理工大学 | Preparation method for titanium dioxide monocrystalline nano wire array film |
| CN104828863A (en) * | 2015-05-14 | 2015-08-12 | 西南科技大学 | Method for controlling the diameter of TiO2 nanowires and TiO2 nanowire arrays prepared therefrom |
| CN105036189A (en) * | 2015-07-30 | 2015-11-11 | 东华大学 | A method for preparing nano-TiO2 arrays on porous silicon substrates by hydrothermal method |
| CN105514281A (en) * | 2016-02-02 | 2016-04-20 | 吉林大学 | After-treatment method for inorganic nanopillar array electron transfer layer of polymer solar cell |
| CN113731329A (en) * | 2021-08-31 | 2021-12-03 | 沈阳工程学院 | Titanium tetrachloride aqueous solution preparation device |
| CN117658207A (en) * | 2023-11-09 | 2024-03-08 | 广州市浩立生物科技有限公司 | Preparation method and application of nano titanium dioxide powder |
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