One-dimensional tubular zeolite with large pore size and preparation method thereof

A large-aperture, tubular technology, applied in the field of large-aperture one-dimensional tubular zeolite and its preparation, can solve the problems of increased adsorption sites and capacity, large space in the tube, and large inner diameter, and achieve multiple contact sites and contact spaces. The effect of reaction rate and mild reaction conditions
CN104556098BInactive Publication Date: 2016-05-04CHINA UNIV OF GEOSCIENCES (WUHAN)
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA UNIV OF GEOSCIENCES (WUHAN)
Publication Date
2016-05-04
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to large-aperture one-dimensional tubular zeolite and a preparation method thereof. The large-aperture one-dimensional tubular zeolite has a nanometer one-dimensional hollow tube structure, the internal diameter of the large-aperture one-dimensional tubular zeolite is 70-90nm, the tube wall thickness is 15-22nm, and the tube length is 0.65-1 micron. The preparation method of the large-aperture one-dimensional tubular zeolite comprises the following steps: 1) preparing purified halloysite; and 2) preparing the large-aperture one-dimensional tubular zeolite: under the conditions of normal temperature and normal pressure, grinding the purified halloysite until the particle size is less than or equal to 200mesh, adding the ground purified halloysite into a sodium hydroxide solution, uniformly mixing, putting in a hydrothermal reaction kettle, carrying out hydrothermal reaction for 20-24h under the condition with the temperature to be 100-110 DEG C, and then carrying out post-processing to obtain the large-aperture one-dimensional tubular zeolite. The method is simple in step, mild in reaction condition, short in production period, simple in procedure, low in cost and little in secondary pollution and is suitable for scale production.
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Description

technical field

[0001] The invention relates to the field of inorganic non-metallic materials, in particular to a large-aperture one-dimensional tubular zeolite and a preparation method thereof. Background technique

[0002] At present, the problem of excessive fluoride in drinking water has seriously affected the normal life of residents in many parts of the world. More than 20 developed or developing countries have endemic diseases related to fluorine due to excessive fluoride. The World Health Organization (WHO) has given a guideline value for the concentration of fluoride ions in drinking water, and many countries and regions treat drinking water according to this guideline value. For the treatment of fluoride in water, zeolite materials can provide unique chemical reactivity and adsorption selectivity due to their unique reactive sites, and can be used as very effective adsorbents. Zeolite is a porous crystalline solid whose basic structure is TO 4 (T=Al / Si) unit stru...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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