Adsorption-photocatalysis double-function char adsorption material and method of producing the same

A carbon adsorption, dual-function technology, applied in the field of carbon adsorption materials and their preparation, can solve the problems of low photocatalyst activity, poor phenol removal effect, poor recycling rate, etc., and achieve the effect of strong photocatalytic activity

Inactive Publication Date: 2009-04-08
刘守新
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of poor phenol removal effect, poor reuse rate and low photocatalytic activity of existing carbon adsorption materials, and provide a kind of adsorption-photocatalysis dual-function carbon adsorption material and its preparation method

Method used

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  • Adsorption-photocatalysis double-function char adsorption material and method of producing the same
  • Adsorption-photocatalysis double-function char adsorption material and method of producing the same
  • Adsorption-photocatalysis double-function char adsorption material and method of producing the same

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specific Embodiment approach 1

[0009] Specific implementation mode 1: In this implementation mode, the adsorption-photocatalytic dual-functional carbon adsorption material is composed of 1% to 70% TiO by mass percentage 2 Granules and 30% to 99% activated carbon.

[0010] The specific surface area of ​​the activated carbon used in this embodiment is 450-3000m 2 / g, the total pore volume is 0.3~2.0cm 3 / g.

specific Embodiment approach 2

[0011] Specific embodiment two: The difference between this embodiment and specific embodiment one is that the adsorption-photocatalytic dual-functional carbon adsorption material is composed of 20% to 60% TiO2 by mass percentage 2 Granules and 40% to 80% activated carbon. Others are the same as the first embodiment.

specific Embodiment approach 3

[0012] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: TiO 2 The particle size of the particles is 13-16 nm. Others are the same as the first or second embodiment.

[0013] After testing the TiO in this embodiment 2 The particle size of the particles is 13-16nm, which is much larger than the microporous particle size of activated carbon (AC), TiO 2 It is impossible for particles to adsorb on the micropores, so TiO 2 The distribution of particles on the activated carbon is inhomogeneous, and mainly concentrated in the large pores and surface slits of the activated carbon, when part of the TiO 2 When the particles entered the entrance of the large pores of the activated carbon, they did not completely block the activated carbon. With TiO 2 With the increase of particle amount, TiO on the surface of activated carbon 2 Increased particle coverage, TiO 2 The aggregate size gradually increases. The specific surface are...

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Abstract

The invention relates to an absorption-photocatalysis double-function carbon absorption material and a preparation method thereof, which relate to a carbon absorption material and a preparation method thereof. The absorption-photocatalysis double-function carbon absorption material solves the problems in the prior carbon absorption material of poor phenol removal effect, poor recycling rate and low activity of photocatalyst, and is made of TiO2 particles and active carbon. The method comprises the following steps: firstly, a solution A is prepared; secondly, a solution B is prepared; thirdly, a precursor of the carbon absorption material is prepared by the sol-gel method; and fourthly, the precursor of the carbon absorption material is kept at a normal temperature, is aged, dried and grinded, is converted into a nitrogen environment, is heat-insulated for 1 hour after the temperature rises to between 180 and 220 DEG C, is heated until the temperature is between 450 and 550 DEG C and heat-insulated for 2 hours, and is cooled to the room temperature. The phenol removal rate of the product obtained is 3.7 to 6.7 times of that of the prior carbon absorption material; the recycling rate of the product is improved by 6 times; and the product has strong photocatalytic activity, and completely decomposes poisonous substances into nontoxic, harmless and flavorless substances in an enclosed environment.

Description

technical field [0001] The invention relates to a carbon adsorption material and a preparation method thereof. Background technique [0002] Water is the basic guarantee for the survival and development of human beings and the civilization and progress of society. However, with the rapid development of industrialization and the continuous expansion of urbanization in recent years, the pollution of source water by pollutants discharged by people in the process of life and production has intensified, and the degree of pollution of source water has become more and more serious. The organic matter in the water gradually increased. At present, activated carbon adsorption is the most effective means for the deep purification of organic micro-polluted water bodies; because the adsorption of activated carbon on pollutants is mainly based on micropore filling, the adsorption capacity of activated carbon is limited, and the adsorption saturation effect can be achieved in a short time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J21/06B01J20/32B01J37/02
Inventor 刘守新
Owner 刘守新
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