A kind of preparation method of rutile phase titanium dioxide/graphene film

Abstract

The invention discloses a preparation method of a rutile phase titanium dioxide / graphene film, comprising the following steps: adding 20 ml of tetrabutyl titanate into 15 ml of absolute ethanol and stirring for 1 hour to form A solution; adding 1.8 ml of acetyl Add acetone and 2 ml of deionized water to 15 ml of absolute ethanol and mix and stir for 1 hour to form B solution; slowly inject B solution into A solution, stir at room temperature for 1 hour, and age in an oven at 60°C to obtain TiO 2 Sol; Spin-coat 4 layers of TiO on Cu substrate / graphene film layer 2 The sol was dried in an oven at 110°C for 15 minutes for each spin-coated layer, and then annealed in an Ar gas atmosphere with a flow rate of 200 sccm. The present invention uses a sol-gel method on a Cu substrate and a TiO 2 A graphene layer is inserted between the films, which effectively improves the TiO 2 Photocatalytic activity of thin films against methylene blue (MB) dye solution.

Description

technical field [0001] The invention relates to the field of photocatalytic materials, in particular to a method for preparing a rutile phase titanium dioxide / graphene film. Background technique [0002] Environmental pollution and energy issues are issues of common concern to all countries in the world. Especially in recent years, with the increase in the amount of urban sewage treatment and the rapid development of various industries, resulting in the imbalance and danger of the ecological system, the problem of water pollution has increasingly attracted widespread attention. The industrial wastewater produced mainly includes salts, curing agents , detergents, organic matter and reactive dyes, etc., pose a serious threat to human health and other organisms. Therefore, research on advanced smart semiconductor materials, which are clean and renewable energy sources and have the ability to degrade pollutants, has attracted more and more attention from various countries. [...

AI Technical Summary

Problems solved by technology

However, the sol-gel method to prepare rutile TiO 2 and TiO 2 There are few research reports on graphene thin films and their related photocatalytic properties

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