Preparation of three-dimensional mesoporous carbon composite material and application of composite material as solid-phase micro-extraction fiber coating material
A carbon composite material and three-dimensional mesoporous technology, which is applied in the preparation of brominated flame retardants, solid phase microextraction fibers, and three-dimensional mesoporous carbon composites, can solve the problems of human health and environmental hazards of brominated flame retardants , to achieve good extraction performance and efficiency, good adsorption energy, and good enrichment and separation efficiency
Inactive Publication Date: 2016-06-01
菏泽盛邦威塑料股份有限公司
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Problems solved by technology
Brominated Flame Retardants Can Cause Persistent Hazards to Human Health and the Environment, Research Shows
Since there are few research reports on the detection, enrichment and separation of brominated flame retardants in environmental samples, it is particularly important to establish a solid-phase microextraction fiber coating material that can effectively enrich and separate brominated flame retardants in the environment. important
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[0028] The preparation of the mesoporous carbon composite material of the present invention, the preparation of the solid-phase microextraction fiber and the extraction performance of brominated flame retardants in environmental water will be further described below through specific examples.
[0029] 1. Preparation of mesoporous silicon
[0030] Add 10 mg of graphene airgel to an aqueous solution containing 480 mg of cetyltrimethylammonium bromide, 4 mL of ethanol and 20 mg of sodium hydroxide, stir at 40 ° C for 6 h, then add 0.5 mL of tetraethyl orthosilicate , after continuing to stir for 6 h, the obtained sample was washed with hot ethanol and distilled water, freeze-dried overnight, and finally calcined in a tube furnace at 800° C. for 3 h under the protection of nitrogen to obtain a mesoporous silicon composite material.
[0031] 2. Preparation of three-dimensional mesoporous carbon composites
[0032] Weigh 1 g of the above-prepared mesoporous silicon, immerse it in a...
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Abstract
The invention provides a three-dimensional mesoporous carbon composite material. The three-dimensional mesoporous carbon composite material is prepared by the following steps: filling up a gap of mesoporous silicon with sucrose with continuous stirring under the heating condition by taking mesoporous silicon as a template, sucrose as a carbon source and ethanol as a medium, and performing freeze-drying; and then performing carbonization under the nitrogen protection and removing the mesoporous silicon template by using NaOH. The mesoporous carbon composite material has a honeycomb-shaped morphology, a porous structure and very good adsorption performance. A solid-phase micro-extraction fiber prepared from the composite material as the coating material has high extraction performance and efficiency, and has very high enrichment separation efficiency for a brominated flame retardant in an environmental water sample, so that the solid-phase micro-extraction fiber can be used for the brominated flame retardant in the enrichment separation environment.
Description
technical field [0001] The invention belongs to the technical field of new materials, and relates to the preparation of a three-dimensional mesoporous carbon composite material; at the same time, the invention also relates to a solid-phase microextraction fiber prepared by using the three-dimensional mesoporous carbon composite material as a coating material, which is mainly used for enrichment Separation of brominated flame retardants in the environment. Background technique [0002] Solid-phase microextraction (Solid-phase Microextraction, SPME) is a new type of extraction and separation technology, which has the advantages of less solvent consumption, high efficiency, strong enrichment ability, and is easy to be combined with instruments to realize automatic online analysis. The time is greatly shortened, so it is widely used in environmental monitoring, food safety, medicine and biology and other fields, and has become an indispensable tool for the separation, detection ...
Claims
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Login to View More IPC IPC(8): B01J20/283B01J20/30B01D15/08G01N1/40
CPCB01D15/08B01J20/283B01J20/3214B01J2220/46B01J2220/54G01N1/405
Inventor 王雪梅鲁沐心王欢马晓敏黄鹏飞
Owner 菏泽盛邦威塑料股份有限公司