Preparation method for cuprous oxide coated molding carbon material

Abstract

The invention relates to the field of new energy and sewage treatment, and aims at providing a preparation method of a cuprous oxide coated molding carbon material. The method comprises the followingsteps of grinding and cleaning a molding carbon material, and soaking in mixed solution of copper nitrate and a stabilizer; carrying out electric reduction treatment; washing with deionized water, andsoaking in the deionized water at room temperature; and carrying out vacuum drying under a dark condition to obtain the cuprous oxide coated molding carbon material. According to the method, the molding carbon material is used as a cuprous oxide substrate material for the first time and more conforms to the actual application requirements; a prepared product has remarkable photoelectric responseunder the visible light irradiation; the thickness of a cuprous oxide thin film can be adjusted by regulating the current density and the electrodeposition time; the preparation method is simple, thefilm forming effect is stable, and mass production is facilitated. The method is carried out at low temperature, the current density is small, the current utilization rate is high, and the energy costis low. The used electrolyte is low in heavy metal content and easy to treat.

Description

technical field [0001] The invention relates to a fast and controllable method for preparing a carbon material coated with cuprous oxide. The material can be used in rechargeable batteries, photocatalysis, electrocatalysis, microbial fuel cells, solar cells, supercapacitors, etc., and belongs to the field of new energy and sewage treatment. Background technique [0002] With the rapid development of human society, the problems caused by energy shortage and environmental pollution have become increasingly prominent. It is an urgent need to develop clean and renewable new energy and related energy materials, and to find new environmental treatment technologies with high efficiency and no secondary pollution. Solved hot issues. [0003] Cuprous oxide is a class of energy and environmental materials that has received great attention in recent years. It can be applied to many fields such as photocatalysis, electrocatalysis, microbial fuel cells, rechargeable batteries, solar cel...

AI Technical Summary

Problems solved by technology

However, the reported carbon materials that can be used as cuprous oxide substrates are only micro- and nano-scale discrete forms such as graphene, carbon nanotubes, carbon nanohorns, and graphite particles, which are more widely used on shaped carbon material substrates. Simple and controllable technology for preparing cuprous oxide particles has not been reported yet

At present, most methods such as chemical vapor deposition, hydrothermal method, sol-gel method, and in-situ pyrolysis method are used to support cuprous oxide on dispersed carbon materials such as graphene, carbon nanotubes, carbon nanohorns, and graphite particles. These preparation methods are complicated in process, often require special equipment, and most of them require high temperature. The loss rate of raw materials in the preparation process is high, and the energy cost and raw material cost are high; the cuprous oxide usually prepared is dispersed in granular form, and it is difficult to form a film. The density and thickness of the granular layer Difficult to control; heavy metal salt solutions, organic matter, nanomaterials, etc. remaining in the preparation process will cause environmental pollution, and it is difficult to meet the needs of large-scale applications

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