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Cu2O/TiO2 composite photocatalysis material and production method thereof

A technology for composite photocatalysis and catalytic materials, applied in the field of Cu2O/TiO2 composite photocatalytic materials and their preparation, can solve the problems of expensive equipment, complicated operation routes, etc., and achieves a high utilization rate, simple preparation process, and high product yield. Effect

Inactive Publication Date: 2017-03-01
ANHUI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The invention with application number 200910229191.8 prepared one-dimensional Cu by AC electrodeposition method 2 O / TiO 2 Core-shell structure array film; the invention with application number 201010212628.X uses pulse electrodeposition technology combined with electro-oxidation method to construct Cu 2 O / TiO 2 Heterojunction nanotube arrays, although these methods have achieved the response of the product in the visible light region, but the products have a one-dimensional array shape, and the operation route is complicated, involving expensive equipment

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  • Cu2O/TiO2 composite photocatalysis material and production method thereof
  • Cu2O/TiO2 composite photocatalysis material and production method thereof
  • Cu2O/TiO2 composite photocatalysis material and production method thereof

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Embodiment 1

[0026] Weigh 1.56g K 2 TiO(C 2 o 4 ) 2 Dissolve in 30 mL of deionized water, slowly add 2 mL of H 2 o 2 (30%) and constantly stirred to make the solution fully react, and dilute HCl (37%) was added dropwise to adjust the pH to 2; then the reaction solution was poured into a 50mL stainless steel hydrothermal reactor, and reacted at 150°C for 12h. After the reaction was completed, the product was cooled naturally, centrifuged with a centrifuge, washed with deionized water and absolute ethanol several times, and dried at 80°C for 12 hours to obtain a single TiO 2 Precursor.

[0027] TiO obtained above 2Disperse in 10mL deionized water, make a uniform suspension under the condition of magnetic stirring, then add 16mL copper acetate aqueous solution (0.062g / mL), 16mL NaOH aqueous solution (0.28g / mL) and 10mL ascorbic acid aqueous solution (0.16g / mL ), continued magnetic stirring for 30min under the condition of a water bath at 50°C, then centrifuged the product, washed it, a...

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Abstract

The invention discloses a Cu2O / TiO2 composite photocatalysis material. The material is characterized in that based on a graded TiO2 hollow microstructure prepared by a hydrothermal method, Cu2O nano particles are modified on the surface, and the porous graded Cu2O / TiO2 composite photocatalysis material with large specific surface area can be obtained. The Cu2O / TiO2 composite photocatalysis material has the advantages of simple process and unique morphologic structure, expends a light responding scope to a visible light area, and the photocatalysis material has excellent photodegradation effect and good cycle stabilization performance during organic dye waste water processing.

Description

technical field [0001] The invention belongs to the technical field of semiconductor photocatalytic material preparation, in particular to a Cu 2 O / TiO 2 Composite photocatalytic material and preparation method thereof. Background technique [0002] In recent years, metal oxide semiconductors have attracted great attention in the fields of wastewater treatment and solar energy conversion due to their high photosensitivity and nontoxic nature. As a typical wide-bandgap n-type semiconductor material, nano-TiO 2 Because of its high photocatalytic activity, low price and stable performance, it is regarded as a research hotspot to solve environmental pollution and global energy supply problems, and it is currently the most commonly used and most promising photocatalyst. However, due to its wide bandgap (3.2 eV), single TiO 2 It can only respond in the ultraviolet range, and the photogenerated electron-hole pairs generated by it are easy to recombine, resulting in low sunlight...

Claims

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Application Information

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IPC IPC(8): B01J23/72B01J35/08C02F1/30C02F101/30
CPCC02F1/30B01J23/72C02F2101/308B01J35/393B01J35/51B01J35/39Y02W10/37
Inventor 王艳芬刘银程详张雷徐初阳李孟婷
Owner ANHUI UNIV OF SCI & TECH