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Preparation of nitrogen-doped flower-like activated carbon microspheres and application of nitrogen-doped flower-like activated carbon microspheres in capacitive deionization
The invention discloses a synthesis method of flower-like polyimide and application of capacitive deionization thereof.The synthesis method of polyimide comprises the following synthesis steps of pouring 75 ml of NMP into a three-opening bottle, sucking adn injecting 0.375 ml of ethylenediamine is into the NMP, and uniformly stirring the mixture at the room temperature; (2) weighing 1.09 g of pyromellitic dianhydride (PMDA) solid, and slowly adding the pyromellitic dianhydride solid into the solution obtained in the step (1); (3) after a solid is completely dissolved, heating oil bath to 160 DEG C, and carrying out reflux condensation for 4 hours; and (4) after the reaction is finished, cooling the bath to room temperature, ultrasonically cleaning the precipitate with 100ml of ethanol, andcarrying out suction filtration to obtain solid polyimide. According to the invention, ethylenediamine is used as a nitrogen source, pyromellitic dianhydride is used as an aromatic substrate, and a porous carbon-based flower-like polyimide nano microsphere structure is prepared by adopting a heating reflux method. The invention is a simple and efficient preparation method. The nitrogen-doped flower-like activated carbon microsphere can realize efficient desalination in the aspect of capacitive deionization.
本发明公开了一种花状聚酰亚胺的合成方法及其电容去离子的应用，聚酰亚胺合成步骤如下：(1)先将75ml的N‑甲基吡咯烷酮(NMP)倒入三口瓶中，吸取0.375ml的乙二胺注入NMP中，在室温下搅拌均匀；(2)称取1.09g的均苯四甲酸二酐(PMDA)固体，缓慢加入(1)溶液中；(3)待固体完全溶解之后，油浴加热至160℃，冷凝回流4h；(4)反应结束后冷却至室温，将沉淀用100ml乙醇超声清洗，抽滤得到固体聚酰亚胺。本发明利用乙二胺为氮源、均苯四甲酸酐为芳香基底，采用加热回流的方法制备出一种多孔碳基花状聚酰亚胺纳米微球结构。该方法是一种简单高效的制备方法。这种氮掺杂花状活性炭微球在电容去离子方面可以实现高效脱盐。
Preparation of nitrogen-doped flower-like activated carbon microspheres and application of nitrogen-doped flower-like activated carbon microspheres in capacitive deionization
The invention discloses a synthesis method of flower-like polyimide and application of capacitive deionization thereof.The synthesis method of polyimide comprises the following synthesis steps of pouring 75 ml of NMP into a three-opening bottle, sucking adn injecting 0.375 ml of ethylenediamine is into the NMP, and uniformly stirring the mixture at the room temperature; (2) weighing 1.09 g of pyromellitic dianhydride (PMDA) solid, and slowly adding the pyromellitic dianhydride solid into the solution obtained in the step (1); (3) after a solid is completely dissolved, heating oil bath to 160 DEG C, and carrying out reflux condensation for 4 hours; and (4) after the reaction is finished, cooling the bath to room temperature, ultrasonically cleaning the precipitate with 100ml of ethanol, andcarrying out suction filtration to obtain solid polyimide. According to the invention, ethylenediamine is used as a nitrogen source, pyromellitic dianhydride is used as an aromatic substrate, and a porous carbon-based flower-like polyimide nano microsphere structure is prepared by adopting a heating reflux method. The invention is a simple and efficient preparation method. The nitrogen-doped flower-like activated carbon microsphere can realize efficient desalination in the aspect of capacitive deionization.
本发明公开了一种花状聚酰亚胺的合成方法及其电容去离子的应用，聚酰亚胺合成步骤如下：(1)先将75ml的N‑甲基吡咯烷酮(NMP)倒入三口瓶中，吸取0.375ml的乙二胺注入NMP中，在室温下搅拌均匀；(2)称取1.09g的均苯四甲酸二酐(PMDA)固体，缓慢加入(1)溶液中；(3)待固体完全溶解之后，油浴加热至160℃，冷凝回流4h；(4)反应结束后冷却至室温，将沉淀用100ml乙醇超声清洗，抽滤得到固体聚酰亚胺。本发明利用乙二胺为氮源、均苯四甲酸酐为芳香基底，采用加热回流的方法制备出一种多孔碳基花状聚酰亚胺纳米微球结构。该方法是一种简单高效的制备方法。这种氮掺杂花状活性炭微球在电容去离子方面可以实现高效脱盐。
Preparation of nitrogen-doped flower-like activated carbon microspheres and application of nitrogen-doped flower-like activated carbon microspheres in capacitive deionization
一种氮掺杂花状活性炭微球的制备及其电容去离子的应用
WANG YILEI (Autor:in) / WANG PENGSHUAI (Autor:in)
08.12.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
B01J
Chemische oder physikalische Verfahren, z.B. Katalyse oder Kolloidchemie
,
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
/
C02F
Behandlung von Wasser, Schmutzwasser, Abwasser oder von Abwasserschlamm
,
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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