Preparation of porous tin oxide-CNTs photocatalytic material based on oxidation and reduction of Cu+/Cu

A photocatalytic material, tin oxide technology, applied in the direction of metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, alkali metal oxide/hydroxide, etc., can solve the problem of low catalytic activity, Achieve the effect of improving catalytic ability, excellent ability, and improving the ability of catalytic degradation of organic pollutants

Inactive Publication Date: 2017-03-29
UNIV OF JINAN
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention is to solve the problem of low catalytic activity of current thin-film photocatalytic materi

Method used

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  • Preparation of porous tin oxide-CNTs photocatalytic material based on oxidation and reduction of Cu+/Cu
  • Preparation of porous tin oxide-CNTs photocatalytic material based on oxidation and reduction of Cu+/Cu
  • Preparation of porous tin oxide-CNTs photocatalytic material based on oxidation and reduction of Cu+/Cu

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specific Embodiment approach 1

[0014] Specific implementation manner 1: Cu-based + The preparation of porous tin oxide-CNTs photocatalytic material by oxidation-reduction of Cu / Cu is carried out in the following steps:

[0015] 1. Based on Cu + / Cu redox to prepare porous tin oxide-CNTs photocatalytic material, which is characterized by Cu + The preparation of porous tin oxide-CNTs photocatalytic material by oxidation-reduction of Cu / Cu is carried out in the following steps:

[0016] (1) Electrodeposition of imitation gold bronze-CNTs on the surface of conductive glass: a. Dissolve 8~80 mL of hydrochloric acid in 700 mL of deionized water, slowly add 5~15 g of hydroquinone, and then add 5~12 g Potassium hydrogen tartrate, stir until all is dissolved, add 1~6 g of stannous chloride and aging for 24h to prepare solution A; b. Add 35~120 g of thiourea to solution A, heat and stir until completely dissolved, then add 5 ~35g cuprous oxide, stirred at 50~80 ℃ for 2 hours, then filtered under normal pressure while hot,...

specific Embodiment approach 2

[0020] Specific embodiment two: This embodiment is different from the specific embodiment one in that the processing time of the ultrasonic cell pulverizer described in step (1) c is 12-50 h. Others are the same as the first embodiment.

specific Embodiment approach 3

[0021] Specific embodiment three: This embodiment is different from specific embodiment one or two in that the electrodeposition time described in e of step (1) is 15 to 90 min. Others are the same as the first or second embodiment.

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Abstract

The invention discloses preparation of a porous tin oxide-CNTs photocatalytic material based on oxidation and reduction of Cu+/Cu, and relates to a preparation method of a porous tin oxide-CNTs photocatalytic material for photo degradation of organic pollutants on the basis of oxidation and reduction of Cu+/Cu in an acidic medium. The invention aims to solve the problem that the catalytic activity of conventional film photocatalytic materials is low. The method comprises the following steps: (1) electrically depositing gold imitated bronze-CNTs on the surface of conductive glass; (2) leaching out monovalent copper of gold imitated bronze-CNTs; and (3) oxidizing porous tin-CNTs to prepare the high efficient porous tin oxide-CNTs photocatalytic degradation composite material. The prepared porous tin oxide-CNTs photocatalytic material has the advantages that the specific surface area is enlarged, the adsorption performance is enhanced, the combination between photoelectrons and cavities is prevented, and thus the catalytic performance of the material is largely improved.

Description

Technical field [0001] The invention belongs to the field of photocatalytic material preparation, and relates to a method based on Cu in an acid solution + / Cu redox to prepare porous tin oxide-CNTs photocatalytic material. Background technique [0002] Economic development has provided a driving force for human society’s progress, and at the same time it has also brought many difficult to eliminate impacts. For example, environmental pollution problems have intensified with economic development, and environmental protection problems are particularly prominent in developing countries. The water and the atmosphere have caused the destruction of the people's living environment. Therefore, it is necessary to take strict control of the discharge of various pollutants, adopt targeted measures for the treatment of pollutants, and develop technologies that can remove pollutants in order to improve the living environment. [0003] For the treatment of water pollution, photocatalytic mater...

Claims

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Application Information

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IPC IPC(8): B01J23/14B01J35/10B01J20/20B01J20/28B01J20/30C02F1/28C02F1/30C02F101/30
CPCB01J20/205B01J20/28054B01J20/28057B01J23/14B01J35/004B01J35/10B01J35/1004C02F1/288C02F1/30C02F2101/30C02F2305/10
Inventor 田栋侯恩啸陈博文周长利黄太仲夏方诠
Owner UNIV OF JINAN
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