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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: 2019-01-22
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 disperse evenly, and then add 4.0 mL of 3-(methyl Acryloyloxy)propyltrimethoxysilane, then slowly add 2.0mL ammonia water (concentration is about 25% by weight) at a feed rate of 2mL / min, so that the pH of the reaction system is 8, and then make the reaction system under nitrogen protection Stir at room temperature for 24h. 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 ...
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, oligomeric styrene and an organosilane compound as shown in the formula (1), wherein R1, R2 and R3 are respectively and independently methyl, methoxy, ethoxy or chlorine, and R1, R2 and R3 are the same or different. The preparation method of the functional mesoporous material comprises the following steps: (1) dispersing the mesoporous material in an organic solvent to obtain a mixed fluid, mixing the mixed fluid, the organosilane compound and an alkaline agent at the inertatmosphere to obtain a surface modified mesoporous material; (2) carrying out polymerization on the surface modified mesoporous material and styrene at the inertatmosphere in the presence of an initiator. The functional mesoporous material prepared according to the above method has high adsorption property, and especially has obviously high 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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