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Method for enhancing surface wettability of hexagonal-prism-structure nano zinc oxide material

A nano-zinc oxide and hexagonal technology, applied in electrolytic inorganic material coating and other directions, can solve the problems of ZnO surface wettability without relevant research, and achieve the effect of low reaction equipment requirements, no environmental pollution, and mild reaction conditions.

Inactive Publication Date: 2014-09-03
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

However, the effect on the wettability of the ZnO surface has not been studied

Method used

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  • Method for enhancing surface wettability of hexagonal-prism-structure nano zinc oxide material
  • Method for enhancing surface wettability of hexagonal-prism-structure nano zinc oxide material
  • Method for enhancing surface wettability of hexagonal-prism-structure nano zinc oxide material

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Embodiment Construction

[0020] Embodiments of the present invention are given and the present invention is described in conjunction with the given embodiments, but the given embodiments do not constitute any limitation to the present invention:

[0021] Specific embodiment one: preparation concentration is the copper sulfate solution of 0.005 mol / L, adjusts the pH value of solution with 1.5 mL lactic acid, sodium hydroxide to be 11; In two-electrode system, wherein graphite electrode is anode, 1.5 cm*5 cm The ITO glass sheet is used as the cathode, and the electrochemical deposition is carried out under the conditions of constant voltage 2.5 V and constant temperature 50 ℃, and the deposition time is 10 s; After annealing for 4 hours, the cuprous oxide with a specific structure on the hexagonal prism zinc oxide is obtained, and the electrodeposited ITO electrode is placed in a perfluorooctyltriethoxysilane with a volume ratio of 1:1000. Soak in ethanol solution for 24 h; take out the soaked ITO e...

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Abstract

The invention discloses a method for enhancing surface wettability of a hexagonal-prism-structure nano zinc oxide material, relating to a method for lowering surface energy of zinc oxide. The surface contact angle and roll angle of the fluorizated hexagonal-prism-structure nano zinc oxide are enhanced, and the Cu2O / ZnO composite material can enhance the photoelectric conversion efficiency. The method adopts an electrochemical deposition process and comprises the following steps: by using copper sulfate, lactic acid and sodium hydroxide as raw materials, adding cationic and nonionic surfactants; in a two-electrode system, by using graphite as an anode and an ITO (indium tin oxide) glass sheet deposited with hexagonal-prism-structure zinc oxide structure as a cathode, carrying out cathode reduction while controlling the deposition voltage, time and temperature to deposit granular cuprous oxide on the hexagonal-prism-structure zinc oxide, sintering at certain temperature, treating with a low-surface-energy substance, and measuring the surface static contact angle. The method has the advantages of low production cost, simple preparation process, low requirements for reaction equipment, mild reaction conditions and no environmental pollution, and can large-scale production.

Description

technical field [0001] The invention relates to a method for improving the surface wettability of a hexagonal columnar structure nano-zinc oxide material. Background technique [0002] Zinc oxide is an N-type semiconductor material with a direct band gap, the band gap is 3.37 eV, and the theoretical lithium content is 978 mAh / g. widely used. Hexagonal prism-shaped ZnO exhibits superhydrophobic properties after being treated with fluorosilane, however, the static contact angle of its surface is in the range of 152 o Left and right, the roll angle is greater than 7 o . Cu 2 0 is a typical P-type semiconductor material with a bandgap of 2.1 eV, and the resistivity can be in the range of 10 3 ~10 13 Change within the range of Ω·cm. The absorption coefficient in the visible light range is high, and the energy conversion rate can theoretically reach 10%. Compared with ZnO, it has lower surface energy and band gap and better catalytic activity. At present, Wei Haoming ...

Claims

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Application Information

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IPC IPC(8): C25D9/04
Inventor 王文锋薛名山王法军欧军飞李文
Owner NANCHANG HANGKONG UNIVERSITY
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