A kind of method for preparing titanium germanium molecular sieve

Abstract

The invention belongs to the field of environment purifying functional materials, and particularly relates to a method for preparing a titanium-germanium molecular sieve. The method comprises the following steps: preparing a titanium-germanium organic solution, namely heating and refluxing absolute ethyl alcohol, n-butyl alcohol, tetrabutyl titanate, tetramethylgermanium, cetyl dimethyl amine oxide and ethylenediamine tetraacetic acid, adding OP-10 and Tween-60, heating and refluxing, adding a hydrochloric acid solution, and heating and refluxing; performing thermosynthesis, namely reacting the titanium-germanium organic solution in a stainless steel autoclave, filtering, washing and drying to obtain solid powder A; performing channel activation, namely heating and refluxing the solid powder A in a phosphoric acid solution, filtering, washing and drying to obtain solid powder B; calcining the solid powder, and grinding to obtain the titanium-germanium molecular sieve. The molecular sieve can spontaneously decompose organic molecules in the light, and is applicable to purification treatment of organic pollutants in atmosphere and water environment.

Description

technical field [0001] The invention belongs to the field of environmental purification functional materials, and in particular relates to a method for preparing titanium-germanium molecular sieves. Background technique [0002] Molecular sieve refers to a class of substances with a uniform pore structure that can accommodate organic molecules. There are pores and cavities in the molecular sieve framework structure, so it has a large specific surface area and is a kind of high-efficiency adsorbent. Molecular sieves are usually crystalline aluminosilicates, and other elements can also be used to partially replace the skeleton silicon or aluminum to form molecular sieves with various compositional structures. Due to different preparation methods and compositions, molecular sieves have different pore characteristics and sizes, and are suitable for adsorbing organic molecules of different sizes. Among the currently known natural and artificial molecular sieves, the molecular s...

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Problems solved by technology

However, the existing molecular sieves cannot spontaneously decompose the adsorbed organic matter, so they cannot continue to act on the air and water polluted by organic matter after the adsorption is saturated.