Method for preparing composite film of silver Nano granule / titanium dioxide

A booklet method for preparing the particle/method of titanium dioxide composite film

technical field

The invention relates to a method for preparing the particle/method of titanium dioxide composite film.

background technology

The metal oxide semiconductor titanium dioxide (TiO2) is for forbidden band semiconductor material, the energy of between about 3.2~3.41eV, wherein the transparent 0.35~12 μ a wavelength sectors, wherein the r.i of high, and a mechanical performance is high, chemical resistance and ABR+OBR process in. A photochemical catalysis of the ultraviolet light band's TiO2; the numerous photocatalysts (TiO2, ZnO, Fe2O3, CdS and so on,) TiO2 is high and non-toxic, catalytic activity, good stability and moderately-priced to make a to with the importance to the easily to. The organic contamination to the water and photochemical catalysis of by wherein, in producing a spacer tasteless CO2 H2O, and simple substance. A TiO2 light can absorb ultraviolet band the light, and wherein the photo-catalysis efficiency of daily condition is low. TiO2 not only a photo-catalysis and light to induce of the hydrophilic, and a distinct high performance. Pure Voltage is selected FROM semiconductor, wherein the oxygen vacancy wherein the nonstoichiometry of (a) TiO2-x. In recent years, TiO2 in the use of the electronic material and sensitive material and more preferably more to the large importance to the ester. Particularly in sensor material, to the TiO2 - oxygen sensor, the Voltage - temperature sensor and TiO2 the electrochemical and an process in a widely applied. A pure TiO2 material from inherent the number of the (>103 Ω), a hard to measure and. The silver (Ag) with or complex The titanium dioxide is of the TiO2 material photo-catalysis performance and a conductive of comprises. A a Ag is easy to separate out to precipitate of the TiO2 sol, wherein the mixing titanium dioxide research of the silver or silver compound having paused of the silver low content of The ((weight percentage) At%<2. Therefore, wherein for preparing high content silver (At%>2) titanium dioxide powder or the film with vital meanings for researching the silver the compound or silver the photo-catalysis performance or the electric conductivity of titanium dioxide.

The invention

A objective of the present invention provides a method for preparing high content silver silver/method of titanium dioxide composite film.

The invention silver for preparing high content silver/method of titanium dioxide composite film, the steps as follows: 1) The compound with of titanium in an organic solvent, the titanium compound and organic solvent Ratio of 1∶4~15, disposed in the water ice bath to stirring the mixture, of a solution; 2) 1∶0.1~1∶6~18∶0.2~1.5 Mixing and stirring according to ratio of water, complexing agent, wherein the organic solvent and silver nitrate agitated powder, and until the silver nitrate, all made of a solution; 3) Is perfusion of the descending B) is placed the water ice bath is a liquid, and to continuously stirring until, and stable colour sol, and sol of the 10~20℃ agent is 2.5-2.8 to be applied;

4)The cleaning and carrier is of the sol is a, the pulling speed is controlled to 1~10cm/min, from one of each time, wherein 450~600℃ thermal treatment 5~60min, the Ag/TiO2 film.

The titanium's compound can be used, butyl titanium chloride or titanate one or ester. The organic solvent is one of the ethanol, ethylene glycol methyl ether, wherein the propylene glycol methyl ether, glycol the quaternary benzene and glycol methyl ether or propyl alcohol. The complexing agent according to the diethanolamine, citric acid and cellulose (HPC) or (polyethylene) be. A height of the beef the glass sheet, quartz glass sheet or potsherd.

The coating Ag/TiO2 thin film thickness of the carrier is a and speed of 1-30% of lifting is.

The beneficial effect of the invention is: The invention claims a metallic materials by a lifting is method for preparing the Ag/TiO2 film, a method and use of the apparatus is simple,The Ag/TiO2 film is made, wherein The content of the: The At% to 10.36 is. The method for The content of Ag/TiO2 film has than the low The content (At%<2) TiO2 film and does not contain and The TiO2 film same photo-catalysis performance and electrical conductivity.

Brief description of the drawings

With 1 of the X-ray diffraction spectrogram of Ag/TiO2 film; With 2 of the following at the back and electronic injection of Ag/TiO2 film film.

detailed description of illustrated embodiments

The combined immunodeficiency as further explanation invention.

The pharmaceutical composition according to claim 11) titanate butyl and ethanol according to 1∶6 In the mixed in the same, and disposed in the water ice bath to stir a minutes, obtaining a liquid; 2) 1∶1∶12∶0.6 mixing and stirring according to ratio of water, diethanol amine, ethanol and silver nitrate agitated powder, and until the silver nitrate completely, the solution B.

3)Is perfusion of the descending a liquid is placed the water ice bath is a liquid, and to continuously stirring until, obtaining the stable, sol is 2.5-2.8 is used for 4℃ the sol; and4) Cleaning quartz glass sheet to soak of the sol is a, the pulling speed is controlled to 2cm/min, from one of each time, wherein 450℃ thermal treatment minutes, the Ag/TiO2 film.

A Ag/TiO2 IN-SITU film spectrum is made of as shown in Figure 1, wherein the film is a anatase titanium dioxide and metal silver thereof. The Ag/TiO2 film BSE following as shown in Figure 2, wherein the high brightness region is Ag, as described, silver dispersing uniformly of TiO2. The Ag/TiO2 film is made of the Ag At% content is 8.36.

The pharmaceutical composition according to claim 21) is a titanium chloride and glycol methyl ether according to 1∶15 In the mixed in the same, and disposed in the water ice bath to stir a minutes, obtaining a liquid,

2)1∶0.1∶18∶1.5 Mixing and stirring according to ratio of water, citric acid, ethylene glycol methyl ether and silver nitrate agitated powder, and until the silver nitrate completely, the solution B.

3)Is perfusion of the descending a liquid is placed the water ice bath is a liquid, and to continuously stirring until, and stable colour sol, and sol of the 4℃ agent is 2.5-2.8 to be applied; 4) Of carbon layer glass and soaking of the sol is a, the pulling speed is controlled to 8cm/min, from one of each time, wherein 600℃ thermal treatment 10min, the Ag/TiO2 film.

The Ag/TiO2 film is made of the Ag At% content is 10.36.

The pharmaceutical composition according to claim 31) the titanate one or ester and propylene glycol methyl ether according to 1∶4 In the mixed in the same, and disposed in the water ice bath to stir a minutes, obtaining a liquid; 2) 1∶0.5∶6∶0.2 mixing and stirring according to the ratio of water, polyethylene glycol, propylene glycol methyl ether and silver nitrate agitated powder, and until the silver nitrate completely, the solution B.

3)Is perfusion of the descending a liquid is placed the water ice bath is a liquid, and to continuously stirring until, obtaining the stable, sol is 2.5-2.8 is used for e the sol; and4) The cleaning potsherd the immersion of the sol is a, the pulling speed is controlled to 2cm/min, from one of each time, wherein 500℃ thermal treatment minutes, the Ag/TiO2 film.

The Ag/TiO2 film is made of the Ag At% content is 3.64.

The pharmaceutical composition according to claim 41) the titanate one or ester and n-propyl according to 1∶4 In the mixed in the same, and disposed in the water ice bath to stir a minutes, obtaining a liquid; 2) 1∶0.5∶9∶0.4 mixing and stirring according to the ratio of water, polyethylene glycol, propanol and silver nitrate agitated powder, and until the silver nitrate completely, the solution B.

3)Is perfusion of the descending a liquid is placed the water ice bath is a liquid, and to continuously stirring until, obtaining the stable, sol is 2.5-2.8 is used for 10℃ the sol; and4) The cleaning potsherd the immersion of the sol is a, the pulling speed is controlled to 6cm/min, from one of each time, wherein 550℃ thermal treatment min, the Ag/TiO2 film.

The Ag/TiO2 film is made of the Ag At% content is 7.64.