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Titanium dioxide-doped tourmaline ceramic ball photocatalyst and preparation method thereof

A technology of titanium dioxide and photocatalyst, which is applied in the direction of catalyst activation/preparation, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., to inhibit crystal growth, improve utilization efficiency, facilitate recycling and long-term The effect of using

Inactive Publication Date: 2013-05-01
大连市疾病预防控制中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] About multi-element co-doped TiO 2 Photocatalyst loaded on TCB, and its application in the deep treatment of water health and environmental protection, there is no literature report at home and abroad

Method used

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  • Titanium dioxide-doped tourmaline ceramic ball photocatalyst and preparation method thereof
  • Titanium dioxide-doped tourmaline ceramic ball photocatalyst and preparation method thereof
  • Titanium dioxide-doped tourmaline ceramic ball photocatalyst and preparation method thereof

Examples

Experimental program
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Effect test

example 1

[0034] Example 1, Fe, N, S-TiO 2 / TCB composite photocatalyst and its preparation method

[0035] (1) Mix 100ml of ethanol with 120ml of dilute nitric acid with a volume ratio of 1:5, weigh 1.61g of ferrous ammonium sulfate hexahydrate and dissolve it in the acid-alcohol mixture, and make a doped ion solution, labeled as A solution .

[0036] (2) Measure 120ml of butyl phthalate and add it to 480ml of ethanol, mix well to form an ethanol solution of butyl phthalate, which is marked as solution B.

[0037] (3) Put 50ml of solution B into a dry constant-pressure dropping funnel, and slowly add it dropwise to 22.5ml of solution A under stirring conditions to form a light yellow transparent mixed solution.

[0038] (4) Weigh 100g of washed and dried TCB, soak it in 30ml of ethanol-ammonia solution (10:1, v / v), slowly drop into the transparent mixture obtained in step (3) under the action of 30Hz ultrasonic waves , sonication for 2 hours, so that the milky white gel coated on th...

example 2

[0040] Example 2, TiO 2 Preparation of / TCB composite photocatalyst

[0041] This example is basically the same as Example 1, and the difference is that 1. the A solution does not contain dopant ions, and the used alkyd solution replaces nitric acid with acetic acid; 2. the immersion solution of TCB uses the same pH ethanol-sodium hydroxide solution as the ethanol-ammonia solution. Other operation steps are the same.

example 3

[0042] Example 3, Fe, N, S-TiO 2 / Medical stone ceramic ball and Fe, N, S-TiO 2 / Preparation of Radium Stone Ceramic Balls

[0043] This example is basically the same as Example 1, the only difference is that the medical stone ceramic balls or radium stone ceramic balls with the same weight and size as TCB are used instead of TCB.

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Abstract

The invention discloses a titanium dioxide-doped tourmaline ceramic ball photocatalyst and a preparation method thereof. The titanium dioxide-doped tourmaline ceramic ball photocatalyst is a composite photocatalyst composed of tourmaline ceramic particles and nano-titanium dioxide as a doping element carried by the tourmaline ceramic particles. The preparation method comprises the following steps of dissolving the doping element in an ethanol acidic aqueous solution, slowly and dropwisely adding an ethanol solution of butyl titanate into the ethanol acidic aqueous solution with stirring to obtain a semitransparent flavescent mixed solution A, dipping the tourmaline ceramic particles into an ethanol alkaline solution to obtain an immersion solution, dropwisely adding the semitransparent flavescent mixed solution A into the immersion solution under the action of ultrasonic wave, carrying out ultrasonic treatment for 1 to 2 hours to obtain a gel covered material composed of the tourmaline ceramic particles and nano-titanium dioxide-doped gel covered on the tourmaline ceramic particles, carrying out filtration, washing and adding of the gel covered material, putting the treated gel covered material into a muffle furnace, gradually heating, and carrying out sintering at a temperature of 400 to 550 DEG C to obtain the titanium dioxide-doped tourmaline ceramic ball photocatalyst. The titanium dioxide-doped tourmaline ceramic ball photocatalyst can carry out effective deep-degradation treatment on trace amounts of various HOCs in drinking water in visible light.

Description

technical field [0001] The invention belongs to the technical field of nano-titanium dioxide catalysts, in particular to doped TiO 2 Composite photocatalyst and preparation method thereof. It specifically involves doped TiO loaded on Tourmaline Ceramic Ball (TCB for short) 2 Composite photocatalyst and preparation method thereof. It also relates to the advanced treatment application of various harmful organic compounds (Harmful Organic Compounds, HOCs for short) that are difficult to decompose in water. Background technique [0002] With the development of industry and agriculture, a large and increasing amount of HOCs must eventually enter the natural water cycle system and inevitably appear in drinking water; especially the abuse of human and veterinary drugs, the flood of electronic and plastic waste, make emerging Organic harmful substances are constantly emerging in drinking water; they are highly toxic and highly bioaccumulative, and even in a very small amount, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/745B01J23/10B01J23/75B01J37/34C02F1/30C02F1/32
Inventor 李春盛赵连张华金大庆何颖
Owner 大连市疾病预防控制中心
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