CN115007146B - Z-type Cu|CuO/TiO 2 Composite membrane photocatalyst and preparation method and application thereof - Google Patents
Z-type Cu|CuO/TiO 2 Composite membrane photocatalyst and preparation method and application thereof Download PDFInfo
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Abstract
The invention relates to a Z-type Cu|CuO/TiO 2 A composite membrane photocatalyst, a preparation method and application thereof belong to the field of photocatalysis. Z-type Cu|CuO/TiO 2 The composite film photocatalyst is prepared through chemical oxidation of clean and dry copper foil to form Cu|CuO and spin coating to form TiO 2 Spin-coating the sol on the surface of Cu|CuO, and finally obtaining Z-type Cu|CuO/TiO by a high-temperature calcination method 2 Composite film photocatalyst. In the invention, for the synthesized Z-type Cu|CuO/TiO 2 The electron on the CuO conducting band of the composite film photocatalyst can be transferred to the copper foil, and hydrogen ions are reduced on the other side of the copper foil to generate hydrogen. At the same time, tiO 2 The cavity on the valence band can be used for degrading organic pollutants, so that the hydrogen production and degradation of the two sides of the metal foil are simultaneously carried out. In addition, under the action of an externally applied magnetic field, the metal composite film photocatalyst cuts a magnetic induction line to generate induced electromotive force, so that the separation of electrons and holes can be promoted, and TiO is accelerated 2 Electrons on the guide belt are transferred to the valence belt of CuO to be combined with holes, thereby improving Z-type Cu|CuO/TiO 2 Degradation of the composite membrane photocatalyst and hydrogen production efficiency.
Description
Technical Field
The invention belongs to the field of photocatalysis, and in particular relates to a Z-type Cu|CuO/TiO 2 A composite membrane photocatalyst, a preparation method and application thereof.
Background
Currently, global energy crisis and environmental pollution have become two major challenges facing the human society. On the one hand, due to the rapid development of economy, the demand for energy by humans is becoming more urgent, resulting in the occurrence of an "energy crisis" worldwide. On the other hand, environmental pollution (especially water pollution) problems have become a global focus of attention. Water is an indispensable valuable resource in human survival and development, however, with the rapid development of industrialization, various pollutants are discharged into water, and endlessly harm human health and environment. It is well known that various waste waters may be treated prior to discharge using techniques such as biodegradation, physical adsorption, sonocatalysis and photocatalysis. The photocatalysis technology has the characteristics of energy conservation, cleanness, no pollution and strong mineralization capability, so that the photocatalysis technology is widely applied to disinfection, sterilization, self-cleaning, air purification, wastewater treatment and the like, and becomes one of the most promising means for treating pollutants.
In recent years, some students at home and abroad try to change the environment of target degradation products through an external field, so as to improve the efficiency of degrading pollutants, such as: magnetic fields, electric fields, microwave fields, and the like. Wakasa et al initially found magnetic ultrafine TiO 2 They explain this as inhibiting the recombination of photogenerated electrons with holes in the semiconductor. After that, a magnetic field is introduced into the photocatalytic reaction process, mainly improving the charge separation efficiency in the semiconductor. For example, gao et al studied magnetic field versus TiO 2 The function of the photocatalysis performance of the nano-belt. The lorentz force caused by the magnetic field separates the electrons and holes in opposite directions, thereby suppressing electron-hole recombination and allowing more active electron-holes to transfer to the surface. As a result, the photocatalytic efficiency is improved by simply incorporating a magnetic field into the photocatalytic system. In addition, sang et al designed and synthesized nanostructured CdS/MoS using a one-step hydrothermal process 2 Mo hybrid photocatalyst. In the rotating magnetic field, the relative motion of the metallic molybdenum sheet and the magnetic field forms a kinetic electromotive force. The in-situ magnetic field derived micropotential provides a radio field for further suppressing the photo-induced electron and hole recombination of CdS. Combining MoS 2 Synergistic effect of Co-catalyst, cdS/MoS 2 Photocatalytic analysis of MoThe hydrogen performance is significantly enhanced. However, the above-mentioned photocatalysts are all powder photocatalysts, and there are often some disadvantages to the conventional powder photocatalysts, such as troublesome recovery, low utilization rate, and the like. In addition, the powder photocatalyst nanoparticles are generally in a freely dispersed state in a solution under magnetic stirring, and do not perform a flipping motion in a fixed direction. Because the direction of the magnetic induction line of the externally applied magnetic field is fixed, on one hand, the magnetic field can promote the separation of electrons and holes of the powder photocatalyst, and the separation efficiency of the electrons and the holes is improved; on the other hand, since the powder photocatalyst nanoparticles perform a non-directional flip motion in a solution, when the nanoparticles move to the opposite direction, the magnetic field may inhibit separation of electrons and holes, reducing the separation efficiency of electrons and holes. In general, without a fixed photocatalyst moving in solution, the magnetic field may promote the separation of a portion of the photogenerated electrons and holes of the powder photocatalyst, while also inhibiting the separation of a portion of the photogenerated electrons and holes, which may cancel each other. Fortunately, the composite membrane photocatalyst constructed on the metal sheet has the advantages of cleanness, convenience and recycling. However, research on the Z-type photocatalyst in terms of degrading organic pollutants and producing hydrogen is still in the development stage of continuous exploration at present, so that development of a photocatalyst with the advantages of high efficiency in utilization, novel structure, convenience in recovery, high catalytic efficiency and the like is necessary.
Disclosure of Invention
To solve the problems, the invention provides Z-type Cu|CuO/TiO 2 A composite membrane photocatalyst, a preparation method and application thereof.
The invention adopts the technical scheme that:
z-type Cu|CuO/TiO 2 The composite film photocatalyst is prepared by preparing clean and dry copper foil into Cu|CuO by adopting a chemical oxidation method, and then adopting a spin coating method to prepare TiO 2 Sol spin coating to form Cu|CuO/TiO on the surface of Cu|CuO 2 Finally, the catalyst is prepared by a high-temperature calcination method.
The Z-type Cu|CuO/TiO 2 The preparation method of the composite membrane photocatalyst comprises the following steps:
1) Polishing the copper foil with fixed size by sand paper, repeatedly cleaning the copper foil with acetone, ethanol, dilute hydrochloric acid and deionized water in sequence, and drying the copper foil for later use;
2) NaOH and K 2 S 2 O 8 Adding deionized water to prepare a mixed solution, then placing the copper foil treated in the step 1) into the mixed solution to oxidize for 3.0-6.0 hours, and when the color of the copper foil changes from light brown to black, indicating that a CuO film is formed on the surface of the copper foil, and then washing twice by using deionized water and drying;
3) Coating TiO on the surface of the CuO film on one side of the copper foil treated in the step 2) by adopting a spin coating method 2 Drying the sol, calcining in a muffle furnace, cooling to room temperature, polishing the other side surface of the copper foil to obtain Cu|CuO/TiO 2 Composite film photocatalyst.
Further, in the above preparation method, in step 3), the TiO 2 The preparation method of the sol comprises the following steps: absolute ethanol and Ti (OBu) 4 Mixing uniformly at room temperature until a pale yellow solution A is formed; magnetically stirring and mixing absolute ethyl alcohol, deionized water and nitric acid to form a clear solution B; slowly dripping the solution B into the solution A by using a dropper under magnetic stirring to obtain a precursor solution; magnetically stirring the precursor solution under the sealing of the preservative film until TiO is formed 2 And (3) sol.
Further, in the preparation method and step 3), the operation steps of the spin coating method are as follows: coating 1 layer of TiO 2 The sol is run at 1000-4000rpm for 20-60 seconds, then dried at 40-100deg.C for 10 minutes, and the same procedure is repeated to coat 1-5 layers of TiO 2 And (3) sol.
Further, in the above preparation method, in step 3), the calcining conditions are as follows: the temperature is 400-800 ℃ and the time is 3.0-6.0 hours.
The Z-type Cu|CuO/TiO 2 The application of the composite film photocatalyst in degrading organic pollutants under the assistance of sunlight and magnetic fields.
The Z-type Cu|CuO/TiO 2 The application of the composite film photocatalyst in photocatalytic hydrogen production under the assistance of sunlight and magnetic fields.
Further, the Z-type Cu|CuO/TiO 2 The application of the composite membrane photocatalyst in degrading organic pollutants or producing hydrogen under the assistance of sunlight and a magnetic field comprises the following steps: the Z-type Cu|CuO/TiO is prepared 2 The composite film photocatalyst is placed in a solution containing a sacrificial agent, and the photocatalytic degradation of organic pollutants and the hydrogen production reaction are carried out under the sun light and a magnetic field with the intensity of 0.05-0.30T.
Further, in the above application, the sacrificial agent is methylene blue, rhodamine B, methyl orange, levofloxacin, norfloxacin or oxytetracycline.
Further, in the above application, the magnetic field is a magnetic field provided by a neodymium-iron-boron permanent magnet.
The beneficial effects of the invention are as follows:
1. in the invention, Z-type Cu|CuO/TiO 2 The composite film photocatalyst is prepared by a chemical oxidation method and a high-temperature calcination method, and the catalyst is loaded on the surface of a matrix to prepare the composite film photocatalyst, so that the defects that the traditional powder photocatalyst is difficult to recycle and has low utilization rate can be overcome, the recycling is convenient, and the utilization rate can be improved.
2. In the invention, Z-type Cu|CuO/TiO 2 As a metal composite film photocatalyst, electrons on a CuO tape can be transferred to a copper foil, and hydrogen ions are reduced on the other side of the copper foil to generate hydrogen. At the same time, tiO 2 The cavity on the valence band is used for degrading organic pollutants, so that the degradation and hydrogen production of the two sides of the metal foil are simultaneously carried out.
3. In the invention, the introduction of the magnetic field assists in the photocatalytic degradation of pollutants and the simultaneous hydrogen production, and the metal composite film photocatalyst cuts the magnetic induction line in the magnetic field, thereby facilitating the separation of photo-generated electrons and holes and accelerating TiO 2 Electrons on the guide belt are transferred to a valence belt of CuO to be combined with holes, so that the photocatalytic activity of the semiconductor photocatalyst is obviously enhanced, and the degradation and hydrogen production efficiency of the photocatalyst are improved. Z-type C prepared by the inventionu|CuO/TiO 2 The composite membrane photocatalyst provides new insight for designing and constructing an immobilized photocatalytic system with high performance and high efficiency.
Drawings
FIG. 1 is Cu|CuO/TiO 2 X-ray powder diffraction (XRD) pattern of (b).
FIG. 2 is Cu|CuO/TiO 2 X-ray photoelectron spectroscopy (XPS) map of (c).
FIG. 3 is Cu|CuO/TiO 2 Degradation effects in organic contaminants at different concentrations.
FIG. 4 is Cu|CuO/TiO 2 Hydrogen production effect patterns in organic pollutants with different concentrations.
FIG. 5 is Cu|CuO/TiO 2 And (3) a degradation effect diagram in organic pollutants under an external auxiliary magnetic field.
FIG. 6 is Cu|CuO/TiO 2 And (3) generating hydrogen effect diagram in organic pollutants under an external auxiliary magnetic field.
FIG. 7 is Cu|CuO/TiO 2 A mechanism diagram of photocatalytic reaction under an externally applied auxiliary magnetic field.
FIG. 8 is Cu|CuO/TiO 2 Schematic of the device for photocatalytic reaction under an externally applied auxiliary magnetic field.
Detailed Description
Example 1Z Cu|CuO/TiO 2 Preparation and characterization of composite film photocatalyst
Process for the preparation of (I)
1) Pretreatment of copper foil
The size was 4.0X14.0 cm 2 Repeatedly polishing the copper foil by using sand paper, respectively ultrasonically cleaning the copper foil by using acetone, ethanol and deionized water, then putting the copper foil into a dilute hydrochloric acid solution, soaking the copper foil for 30 minutes to remove impurities and natural oxides, washing the copper foil by using deionized water, and then drying the copper foil in air.
2) Preparation of Cu|CuO by chemical oxidation method
First, naOH and K 2 S 2 O 8 Adding deionized water to prepare a mixed solution, then placing the copper foil treated in the step 1) into the mixed solution to oxidize for 3.0-6.0 hours, when the color of the copper foil is changed from light brownWhen turned black, it indicates that a film of CuO was formed on the surface of the copper foil, rinsed twice with deionized water and dried.
3) Preparation of TiO by sol-gel method 2 Sol-gel
Absolute ethanol and Ti (OBu) 4 Sequentially adding into a 100mL beaker, and uniformly mixing at room temperature until a pale yellow solution A is formed; absolute ethyl alcohol, deionized water and nitric acid are added into a 50mL beaker, and magnetic stirring and mixing are carried out to form a clear solution B; slowly dripping the solution B into the solution A by using a dropper under magnetic stirring to obtain a precursor solution; magnetically stirring the precursor solution under the sealing of the preservative film until TiO is formed 2 And (3) sol.
4) Preparation of Cu|CuO/TiO by spin coating 2 Composite membrane photocatalyst
Coating TiO on the surface of the CuO film on one side of the copper foil treated in the step 2) by adopting a spin coating method 2 Sol, coating 1 layer of TiO 2 The sol is run at 1000-4000rpm for 20-60 seconds, then dried at 40-100deg.C for 10 minutes, and the same procedure is repeated to coat 1-5 layers of TiO 2 Sol, placing the dried sample in a muffle furnace, calcining at 400-800 ℃ for 3.0-6.0 hours, cooling to room temperature, polishing the other side surface of the copper foil to obtain Cu|CuO/TiO 2 Composite film photocatalyst.
(II) detection
1) FIG. 1 is Cu|CuO/TiO 2 X-ray powder diffraction (XRD) pattern of (b).
As shown in fig. 1, the crystal planes of the main diffraction peaks of CuO in the prepared cu|cuo are (110), (002), (111), (202), (020), (202), (113), (022) and (200) crystal planes, respectively, corresponding to diffraction peaks 2θ=32.6 °, 35.7 °, 38.8 °, 48.9 °, 53.5 °, 58.2 °, 61.6 °, 66.4 ° and 68.1 ° of CuO (jcpds#05-0661), respectively; second, the main diffraction peaks of Cu appear at 43.3 °, 50.6 °, and 74.3 °, respectively, which are attributed to the (111), (200), and (220) planes of the cubic phase of Cu (JCPLS#04-0836); finally, it can be seen that TiO 2 Diffraction peaks of (2) occur at 25.28 °, 38.58 °, 48.05 °, 55.06 °, 62.12 °, 70.31 ° and 75.03 °, respectively, which are attributed to anatase TiO 2 (101), (112), (200) of (JCPLDS#21-1272)) (211), (213), (220) and (215). In summary, in FIG. 1, cu, cuO and TiO can be observed simultaneously 2 Is a diffraction peak of (2). The results show that the Cu|CuO/TiO is successfully prepared 2 A photocatalyst.
2) FIG. 2 is Cu|CuO/TiO 2 X-ray photoelectron spectroscopy (XPS) map of (c).
Cu|CuO/TiO by X-ray photoelectron spectroscopy (XPS) 2 The elemental composition of (a) was characterized and the results obtained are shown in FIG. 2. The characteristic peaks of the 3 elements Cu, ti and O can be clearly seen in FIG. 2, which shows that the prepared composite sample contains the 3 elements Cu, ti and O. Further, it can be demonstrated that Cu|CuO/TiO 2 Composite films were successfully prepared as Z-type photocatalysts.
Example 2Z Cu|CuO/TiO 2 Application of composite membrane photocatalyst
Degradation effect (no magnetic field) of Cu|CuO/TiO2 composite film photocatalyst on organic pollutants
The method comprises the following steps: 1 piece of 4X 4cm 2 Z-type Cu|CuO/TiO 2 The composite membrane photocatalyst is respectively placed in 100mL of 10mg/L, 20mg/L and 30mg/L Norfloxacin (NOR) solution, and is irradiated with visible light for 180 minutes at the temperature of 25-28 ℃ to take samples every 30 minutes.
Each suspension was placed in the dark for 30 minutes to reach absorption/desorption equilibrium before solar irradiation. As can be seen from fig. 3, the non-catalytic photocatalytic degradation ability of NOR was weak without the photocatalyst, confirming that NOR is photo-stable. Under dark conditions (30 minutes), the concentration ratio of the NOR solutions at different concentrations decreased slightly, indicating that the prepared photocatalysts had slight adsorption to NOR. When the suspension is irradiated by sunlight, the degradation rate of NOR with different concentrations gradually increases along with the extension of irradiation time, wherein Z-shaped Cu|CuO/TiO 2 The composite membrane photocatalyst showed the highest degradation rate in 10mg/L of NOR solution, indicating that a 10mg/L concentration of NOR is suitable for efficient photocatalytic degradation.
(II) Cu|CuO/TiO 2 Hydrogen production effect (no magnetic field) of composite film photocatalyst
The method comprises the following steps: 1 piece of 4X 4cm 2 Z-type Cu|CuO/TiO 2 The composite film photocatalyst is respectively placed in 100mL of 10mg/L, 30mg/L and 50mg/L Norfloxacin (NOR) solution, and is irradiated by sunlight for 180 minutes at the temperature of 25-28 ℃ to take samples every 30 minutes.
The photocatalytic performance of the photocatalyst can be evaluated by the hydrogen production amount. FIG. 4 shows Cu|CuO/TiO 2 Trend of cumulative hydrogen production of NOR solutions of different concentrations over 180 minutes. It can be seen that the hydrogen production of all three systems increased with longer irradiation times. Wherein, in 50mg/L of NOR solution, Z-type Cu|CuO/TiO 2 The hydrogen yield of the composite membrane photocatalyst is obviously increased, and the hydrogen yield can reach 334.82 mu mol/dm 2 . The results show that 50mg/L NOR solution is more suitable for Z-type Cu|CuO/TiO 2 The composite membrane photocatalyst is used for producing hydrogen by photocatalysis.
(III) Cu|CuO/TiO 2 Degradation effect of composite film photocatalyst on organic pollutants under assistance of magnetic field
The method comprises the following steps: 1 piece of 4X 4cm 2 Z-type Cu|CuO/TiO 2 The composite membrane photocatalyst is placed in 100mL of 10mg/L Norfloxacin (NOR) solution, and under the condition of 25-28 ℃, under the assistance of a 0.30T magnetic field provided by an additional neodymium-iron-boron permanent magnet, sunlight irradiates for 180 minutes, and samples are taken every 30 minutes.
In order to improve the degradation activity of the photocatalyst, an external magnetic field is introduced into the photocatalytic degradation experiment. As can be seen from fig. 5, the photocatalytic degradation capability of the photocatalyst is improved to a certain extent under the action of the external magnetic field. With the extension of illumination time, the degradation rate of the NOR under the external magnetic field is higher than that under the condition of no magnetic field to a certain extent, and the degradation rate is improved to 87.46% in 180 minutes, so that the degradation effect is improved to a certain extent. The above results demonstrate that the magnetic field has a certain promoting effect on photocatalytic degradation of NOR.
(IV) Cu|CuO/TiO 2 Hydrogen production effect of composite film photocatalyst under assistance of magnetic field
The method comprises the following steps: 1 piece of 4X 4cm 2 Z-type Cu|CuO/TiO 2 The composite membrane photocatalyst is placed in 100mL of 50mg/L Norfloxacin (NOR) solution at 25-28 DEG CUnder the assistance of a 0.30T magnetic field provided by an externally added neodymium iron boron permanent magnet, sunlight irradiates for 180 minutes, and samples are taken every 30 minutes.
To examine Z-type Cu|CuO/TiO 2 The capability of the composite membrane photocatalyst for producing hydrogen under the assistance of a magnetic field, and an externally applied magnetic field is introduced into a photocatalysis hydrogen production experiment. As can be seen from fig. 6, the cumulative hydrogen production increases with the illumination time. In particular, cu|CuO/TiO after the applied magnetic field 2 The hydrogen yield of the composite film photocatalyst is increased to a certain extent compared with the hydrogen yield without a magnetic field. Cu|CuO/TiO 2 The hydrogen yield of the composite membrane photocatalyst reaches 418.53 mu mol/dm 2 . The above results demonstrate that the magnetic field has the ability to assist in enhancing the photocatalytic hydrogen production.
(fifth) Cu|CuO/TiO 2 Mechanism diagram of photocatalytic reaction of composite film photocatalyst under assistance of magnetic field
The mechanism of the photocatalytic reaction is schematically shown in fig. 7. The method comprises the steps of taking a metal copper foil as a carrier and a reaction raw material, growing a copper oxide photocatalyst, and then coating titanium dioxide sol on the surface of the copper oxide to construct the composite film photocatalyst. Then, an external magnetic field is introduced into the photocatalytic reaction, and according to the right-hand rule theory, the magnetic induction line and the electron transfer path are fixed in the direction for the first time so as to be mutually perpendicular. When the external magnetic field and the photocatalyst relatively rotate, the metal composite film photocatalyst cuts the magnetic induction line to generate induced electromotive force which can accelerate electron transfer and accelerate TiO 2 Electrons on the guide belt are transferred to a valence belt of CuO to be combined with holes, so that the separation efficiency of the electrons and the holes is improved, and the degradation and hydrogen production efficiency of the photocatalyst are improved.
(six) Cu|CuO/TiO 2 Schematic diagram of device for photocatalytic reaction of composite membrane photocatalyst under assistance of magnetic field
A schematic view of the photocatalytic reaction device is shown in FIG. 8. Under the irradiation of simulated sunlight, the prepared Z-type Cu|CuO/TiO is researched by comparing whether magnetic field is used for assisting in photocatalytic degradation of Norfloxacin (NOR) and simultaneously producing hydrogen 2 Photocatalytic performance of the composite film photocatalyst. Xenon lamps act as a source of simulated sunlight and NOR solutions act as target contaminants. Z-type Cu|CuO/TiO 2 The composite film photocatalyst is placed in a NOR solution to carry out photocatalysis reaction.
Claims (9)
1. Z-type Cu|CuO/TiO 2 The preparation method of the composite membrane photocatalyst is characterized by comprising the following steps:
1) Polishing the copper foil with fixed size by sand paper, repeatedly cleaning the copper foil with acetone, ethanol, dilute hydrochloric acid and deionized water in sequence, and drying the copper foil for later use;
2) NaOH and K 2 S 2 O 8 Adding deionized water to prepare a mixed solution, then placing the copper foil treated in the step 1) into the mixed solution to oxidize for 3.0-6.0 hours, and when the color of the copper foil changes from light brown to black, indicating that a CuO film is formed on the surface of the copper foil, and then washing twice by using deionized water and drying;
3) Coating TiO on the surface of the CuO film on one side of the copper foil treated in the step 2) by adopting a spin coating method 2 Drying the sol, calcining in a muffle furnace, cooling to room temperature, polishing the other side surface of the copper foil to obtain Cu|CuO/TiO 2 Composite film photocatalyst.
2. The method according to claim 1, wherein in step 3), the TiO 2 The preparation method of the sol comprises the following steps: absolute ethanol and Ti (OBu) 4 Mixing uniformly at room temperature until a pale yellow solution A is formed; magnetically stirring and mixing absolute ethyl alcohol, deionized water and nitric acid to form a clear solution B; slowly dripping the solution B into the solution A by using a dropper under magnetic stirring to obtain a precursor solution; magnetically stirring the precursor solution under the sealing of the preservative film until TiO is formed 2 And (3) sol.
3. The method according to claim 1, wherein in the step 3), the spin coating method comprises the following steps: coating 1 layer of TiO 2 The sol is run at 1000-4000rpm for 20-60 seconds, then dried at 40-100deg.C for 10 minutes, and the same operation is repeatedCoating 1-5 layers of TiO 2 And (3) sol.
4. The method according to claim 1, wherein in step 3), the calcining conditions are as follows: the temperature is 400-800 ℃ and the time is 3.0-6.0 hours.
5. The Z-type Cu|CuO/TiO prepared by the preparation method of claim 1 2 The application of the composite film photocatalyst in degrading organic pollutants under the assistance of sunlight and magnetic fields.
6. The Z-type Cu|CuO/TiO prepared by the preparation method of claim 1 2 The application of the composite film photocatalyst in photocatalytic hydrogen production under the assistance of sunlight and magnetic fields.
7. Use according to claim 5 or 6, characterized in that the method is as follows: the Z-type Cu|CuO/TiO as defined in claim 1 2 The composite film photocatalyst is placed in a solution containing a sacrificial agent, and the photocatalytic degradation of organic pollutants and the hydrogen production reaction are carried out under the sun light and a magnetic field with the intensity of 0.05-0.30T.
8. The use according to claim 7, wherein the sacrificial agent is methylene blue, rhodamine B, methyl orange, levofloxacin, norfloxacin or oxytetracycline.
9. The use of claim 7, wherein the magnetic field is provided by a neodymium-iron-boron permanent magnet.
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| CN104785262A (en) * | 2015-04-07 | 2015-07-22 | 上海师范大学 | CuxO/TiO2 film with copper wire mesh used as substrate as well as preparation method and application of film |
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| CN104785262A (en) * | 2015-04-07 | 2015-07-22 | 上海师范大学 | CuxO/TiO2 film with copper wire mesh used as substrate as well as preparation method and application of film |
Non-Patent Citations (1)
| Title |
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| "CuO-TiO2 nanostructures prepared by chemical and electrochemical methods as photo electrode for hydrogen production";Evrim Baran Aydın等;《International Journal of Hydrogen Energy》;第47卷;6519-6534 * |
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