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Preparation method of activated carbon adsorbent loaded with titanium dioxide

A technology of activated carbon adsorption and titanium dioxide, which is applied in the field of preparation of activated carbon and activated carbon adsorbent, can solve problems such as not found, and achieve the effects of simple operation, easy promotion of industrialization and marketization, and simple process

Inactive Publication Date: 2012-06-20
BEIJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Currently preparing supported TiO 2 There are many technologies, mainly sol-gel method, sol impregnation-calcination method, etc., but so far, no TiCl 3 The solution is the titanium source, and the activated carbon-supported TiO is prepared by a hydrothermal method. 2 Adsorbent reports

Method used

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  • Preparation method of activated carbon adsorbent loaded with titanium dioxide
  • Preparation method of activated carbon adsorbent loaded with titanium dioxide
  • Preparation method of activated carbon adsorbent loaded with titanium dioxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Screen the commercial activated carbon AC-1 before use, sieve through 10-20 meshes, place the obtained activated carbon in a beaker filled with deionized water twice the volume of activated carbon, and place it in an aqueous solution In a digitally controlled ultrasonic cleaner, ultrasonicate at room temperature for 1 hour to remove powder and oily substances in the activated carbon, wash with deionized water, filter with suction, and dry;

[0024] (2) Mix 33.7ml deionized water, 6.5ml concentrated HCl solution and 9.8ml TiCl 3 The solution was sequentially added to the polytetrafluoroethylene liner of the 100ml stainless steel reaction kettle, and configured as 0.5mol / L TiCl 3 - HCl solution;

[0025] (3) Add 20 g of granular activated carbon obtained in step (1) to the solution prepared in step (2), tighten the stainless steel reaction kettle, place it in an electric constant temperature blast drying oven for hydrothermal treatment, and treat it at 160 ° C for 24...

Embodiment 2

[0028] (1) Screen the commercial activated carbon AC-2 before use, sieve through 10-20 meshes, place the obtained activated carbon in a beaker filled with deionized water twice the volume of activated carbon, and place it in an aqueous solution In a digitally controlled ultrasonic cleaner, ultrasonicate at room temperature for 1.5 hours to remove powder and oily substances in activated carbon, wash with deionized water, filter with suction, and dry;

[0029] (2) Mix 33.7ml deionized water, 6.5ml concentrated HCl solution and 9.8ml TiCl 3 The solution was sequentially added to the polytetrafluoroethylene liner of the 100ml stainless steel reaction kettle, and configured as 0.5mol / L TiCl 3 - HCl solution;

[0030] (3) Add 20 g of granular activated carbon obtained in step (1) to the solution prepared in step (2), tighten the stainless steel reaction kettle, place it in an electric constant temperature blast drying oven for hydrothermal treatment, and treat it at 160 ° C for 24 ...

Embodiment 3

[0032] (1) Screen the commercial activated carbon AC-3 before use, sieve through 10-20 meshes, place the obtained activated carbon in a beaker filled with deionized water twice the volume of activated carbon, and place it in an aqueous solution In a digitally controlled ultrasonic cleaner, ultrasonicate at room temperature for 2 hours to remove powder and oily substances in the activated carbon, wash with deionized water, suction filter, and dry;

[0033] (2) Mix 33.7ml deionized water, 6.5ml concentrated HCl solution and 9.8ml TiCl 3 The solution was sequentially added to the polytetrafluoroethylene liner of the 100ml stainless steel reaction kettle, and configured as 0.5mol / L TiCl 3 - HCl solution;

[0034] (3) Add 20 g of granular activated carbon obtained in step (1) to the solution prepared in step (2), tighten the stainless steel reaction kettle, place it in an electric constant temperature blast drying oven for hydrothermal treatment, and treat it at 160 ° C for 24 hou...

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Abstract

The invention relates to a preparation method of activated carbon adsorbent loaded with titanium dioxide, which belongs to the technical field of absorbent. The method comprises the following specific steps that: the activated carbon is pre-treated, washed and dried; titanium trichloride (TiCl3) solution is prepared into titanium trichloride-hydrogen chloride (TiCl3-HCl) solution with different molar concentration, and the TiCl3-HCl solution is transferred to the polyfluortetraethylene liner of a stainless steel reaction kettle; the treated activated carbon is added into the TiCl3-HCl solution, and the stainless steel reaction kettle is screwed and put into an electric heating constant temperature blowing dry box to be treated by hydrothermal treatment; and the activated carbon after hydrothermal treatment is washed and dried, and the activated carbon absorbent loaded with titanium dioxide is obtained. The preparation method of activated carbon adsorbent loaded with titanium dioxide has a simple process, is convenient to operate, obtains granular loaded absorbent, can improve the penetration time of the absorbent, does not use any organic solvent, nearly has no pollution in a production process, meets the requirements of sustainable development, and is an environmental-friendly production process.

Description

technical field [0001] The invention relates to a method for preparing activated carbon, in particular to a method for preparing an activated carbon adsorbent loaded with titanium dioxide, and belongs to the technical field of adsorbents. Background technique [0002] According to statistics, my country has 18 billion m 3 The above pure methane is mixed into the mine air flow and evacuated through the exhaust air, which is equivalent to more than 36 million tons of coal being wasted in vain. Not only that, the greenhouse effect of methane is CO 2 21 times that of CO 2 Seven times that of methane, the damage to the atmospheric environment caused by the discharge of methane into the atmosphere has become a major environmental problem faced by the whole world. Due to the large flow rate, low concentration, low enrichment efficiency, potential safety hazards, and difficulties in comprehensive utilization, the development and application of gas enrichment technology in coal mi...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30
Inventor 李坚马东祝何洪梁文俊郭连杰
Owner BEIJING UNIV OF TECH
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