Preparation method of photocatalytic floating beads

A technology of photocatalysis and floating beads, which is applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc. The effect of reducing loss and self-damage and improving efficiency

Pending Publication Date: 2021-03-05
浙江智钛纳微新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method is complex and the doping of metal ions is only in the range of the titanium dioxide (TiO 2 ) surface, the improvement of photocatalytic reaction efficiency is limited; when the outer layer is damaged, the inner layer no longer has such high catalytic activity

Method used

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  • Preparation method of photocatalytic floating beads
  • Preparation method of photocatalytic floating beads
  • Preparation method of photocatalytic floating beads

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of photocatalytic floating beads, comprising the following steps:

[0034] a. Pretreatment of floating beads: soak the floating beads with 10% dilute acid for 6 hours at room temperature, and then rinse with distilled water until the outflowing water is neutral. Select floating beads and dry them for later use;

[0035] b. TiO 2 Preparation of sol: using butyl titanate, absolute ethanol, acetylacetone, distilled water and hydrochloric acid as raw materials, the molar ratio of butyl titanate, absolute ethanol, acetylacetone, distilled water and hydrochloric acid is 1:16:1:6: 0.6, first dissolve butyl titanate in ethanol, add acetylacetone, slowly add water and hydrochloric acid under stirring, continue stirring for 5-6 hours, and then age to obtain yellow transparent TiO 2 Sol;

[0036] c. Load TiO 2 Preparation of floating beads: TiO 2Add the floating bead carrier pretreated in step a to the sol, so that the mass ratio of butyl titanate to float...

Embodiment 2

[0042] A preparation method of photocatalytic floating beads, comprising the following steps:

[0043] a. Pretreatment of floating beads: soak the floating beads with 10% dilute acid for 6 hours at room temperature, and then rinse with distilled water until the outflowing water is neutral. Select floating beads and dry them for later use;

[0044] b. TiO 2 Preparation of sol: using butyl titanate, absolute ethanol, acetylacetone, distilled water and hydrochloric acid as raw materials, the molar ratio of butyl titanate, absolute ethanol, acetylacetone, distilled water and hydrochloric acid is 1:16:1:6: 0.6, first dissolve butyl titanate in ethanol, add acetylacetone, slowly add water and hydrochloric acid under stirring, continue stirring for 5-6 hours, and then age to obtain yellow transparent TiO 2 Sol;

[0045] c. Load TiO 2 Preparation of floating beads: TiO 2 Add the floating bead carrier pretreated in step a to the sol, so that the mass ratio of butyl titanate to floa...

Embodiment 4

[0061] A preparation method of photocatalytic floating beads, comprising the following steps:

[0062] a. Floating beads pretreatment: Soak the floating beads in 10% dilute nitric acid for 6 hours at room temperature, then rinse with distilled water until the outflowing water is neutral, choose floating beads, and dry them for later use;

[0063] b. TiO 2 Preparation of sol: using butyl titanate, absolute ethanol, acetylacetone, distilled water and hydrochloric acid as raw materials, the molar ratio of butyl titanate, absolute ethanol, acetylacetone, distilled water and hydrochloric acid is 1:16:1:6: 0.6, first dissolve butyl titanate in ethanol, add acetylacetone, slowly add water and hydrochloric acid under stirring, continue stirring for 5-6 hours, and then age to obtain yellow transparent TiO 2 Sol;

[0064] c. Load TiO 2 Preparation of floating beads: TiO 2 Add the floating bead carrier pretreated in step a to the sol, so that the mass ratio of butyl titanate to float...

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Abstract

The invention provides a method for preparing photocatalytic floating beads loaded with transition metal ions. Compared with photocatalytic floating beads not doped with transition metal ions, the photocatalytic floating beads produced by the method provided by the invention have the advantage that photocatalytic efficiency is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of photocatalyst preparation, and relates to a sol-gel-photoinitiated polymerization printing method, in particular to a photocatalytic floating bead and a preparation method thereof. Background technique [0002] Water resources are the prerequisite for the survival of human society and are directly related to the sustainable development of society. Today, the earth's ecological environment has been severely damaged by human activities, especially the seriousness of water pollution, which has sounded the alarm to people. Under the current situation of increasing water pollution, it is urgent to stabilize and start to control water pollution. [0003] At present, photocatalytic technology has been widely used in wastewater treatment in the environment. People have achieved good results in using semiconductors and compound semiconductors to deal with environmental pollution, especially for titanium dioxide ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/34B01J21/06B01J23/745B01J23/75B01J23/755B01J23/06B01J35/08B01J37/03B01J37/02B01J37/08C02F1/32
CPCB01J23/34B01J21/063B01J23/745B01J23/75B01J23/755B01J23/06B01J23/002B01J35/004B01J35/08B01J37/038B01J37/0207B01J37/082C02F1/32C02F2305/10C02F2101/308
Inventor 黄雪辉
Owner 浙江智钛纳微新材料有限公司
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