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A kind of functional mesoporous material and preparation method thereof
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A mesoporous material and functional technology, applied in the field of functional materials, can solve the problems of small adsorption capacity, inability to be widely used, poor desorption performance, etc., and achieve the effect of improving adsorption performance.
Active Publication Date: 2018-12-28
CHINA PETROLEUM & CHEM CORP +1
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[0004] There are many materials for removing benzene in water by adsorption, but most of them cannot be widely used to treat benzene in water due to small adsorption capacity and poor desorption performance.
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[0028] According to another aspect of the present invention, the present invention provides a method for preparing the above-mentioned functional mesoporous material, the method comprising the following steps:
[0029] (1) Disperse the above-mentioned mesoporous material in an organic solvent to obtain a mixed fluid, mix and contact the mixed fluid, the organosilane compound represented by the above formula (1) and an alkali agent under an inertatmosphere to obtain a surface-modified mesoporous materials;
[0030] (2) In the presence of an initiator, the surface-modified mesoporous material and styrene are polymerized under an inert atmosphere.
[0031] In step (1), the amount of the organic silane compound is such that the weight ratio of the content of the mesoporous material to the organic silane compound in the prepared functional mesoporous material is 1:1-5, preferably 1:1-3. In one embodiment, relative to 1 g of the mesoporous material, the amount of the organosilane ...
Embodiment 1
[0045] This example is used to illustrate the functional mesoporous material provided by the present invention and its preparation method.
[0046]Disperse 2.0 g of mesoporous SBA-15 (purchased from Nanjing Xianfeng Nano Material Technology Co., Ltd.) in 50 mL of N,N-dimethylformamide, stir to make it evenly dispersed, and then add 4.0 mL of vinyltrimethoxy Silane, and then slowly add 2.0 mL of ammonia water (concentration of about 25% by weight) at a feeding rate of 2 mL / min to make the pH of the reaction system 8, and then stir the reaction system at room temperature for 24 h under nitrogen protection. After the reaction, the reaction mixture was filtered, and the obtained solid was washed with N,N-dimethylformamide (DMF), deionized water, and acetone respectively, and then dried in vacuum at 100°C to obtain a surface-modified mesoporous material .
[0047] Weigh 1g of the obtained surface-modified mesoporous material, put it into a round-bottomed flask, then add 50mL of to...
Embodiment 2
[0049] This example is used to illustrate the functional mesoporous material provided by the present invention and its preparation method.
[0050] The functional mesoporous material was prepared according to the method of Example 1, except that the amount of styrene added was 0.8 mL, thereby preparing the functional mesoporous material S2.
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Abstract
The invention relates to a functional mesoporous material and a preparation method thereof. The functional mesoporous material contains a mesoporous material, oligomerized styrene and an organosilane compound as shown in a formula (1) which is described in the specification, wherein in the formula (1), R1, R2 and R3 are independently selected from a group consisting of a methyl group, a methoxy group, an ethoxy group and chlorine and are same or different. The preparation method for the functional mesoporous material comprises the following steps: (1) dispersing the mesoporous material in an organic solvent so as to obtain a mixed fluid, subjecting the mixed fluid, the organosilane compound and an alkali agent to mixing and contact in an inertatmosphere so as to obtain a surface-modified mesoporous material; and (2) subjecting the surface-modified mesoporous material and styrene to polymerization in the inertatmosphere in the presence of an initiator. The functional mesoporous material prepared by using the preparation method has high adsorption performance and is especially high in adsorption quantity of the pollutantbenzene in water.
Description
technical field [0001] The present invention relates to the field of functional materials, in particular to a functional mesoporous material, a method for preparing the functional mesoporous material, and a functional mesoporous material prepared by the method. Background technique [0002] Since Mobil researchers reported the synthesis of a series of ordered mesoporous aluminosilicate M41S materials in 1992, the study of this mesoporous material with the advantages of uniform pore structure and large specific surface area has become the focus of many researchers. focus of attention. Nowadays, with the deepening of research, the appearance of various functionalized mesoporous materials has greatly expanded the application range of mesoporous materials. Now many functionalized mesoporous materials have been applied in the fields of analysis, environment, biology and medicine. [0003] In the field of environmental science, it is no stranger to use mesoporous materials as med...
Claims
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