CN104399436A - 酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的制备方法 - Google Patents
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- B01J20/226—Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF]
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Abstract
本发明涉及一种复合材料技术领域的酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的制备方法,包括如下步骤:步骤一,取八羟基酞菁锌,2,7-芘二硼酸,单壁碳纳米管,加入二甲基乙酰胺和邻二氯苯的混合物,放入耐热玻璃反应管中,超声分散形成悬浮液A;步骤二,悬浮液A经过3次以上液氮冷冻-抽真空-脱气步骤,密封,在一定温度下反应一段时间,得到粗产物B。步骤三,将粗产物B离心后用特定溶剂清洗2次,干燥得到最终产物。本发明的方法无污染,对设备的要求简单,反应条件温和,适合工业化大规模生产。
Description
技术领域
本发明涉及的是一种复合材料技术领域的制备方法,具体是酞菁锌-芘-共价有机框架/单壁碳纳米管复合物。
背景技术
共价有机框架(Covalent Organic Frameworks;COFs)由有机结构单元通过共价键连接而形成,是一类具有规整多孔结构的平面高分子,具有较大的比表面积、结构的多样性以及可调控的物理化学性质。经过现有技术的文献检索发现,2012年Donglin JIANG等在《Chemical Society Reviews》41卷第6010-6022页发表Covalent Organic Framework(共价有机框架)。与传统的线性和三维高分子相比,共价有机框架具有截然不同的结构特征,其原子层结构清晰,连接方式明确,结构单元排列规整,具有精密的周期性;材料结晶度高,可形成完美的层状堆积框架。其在气体存储、分离、催化、光电等多个领域显示优异性能而受到广泛的关注,具有潜在的应用前景。
目前,在气体吸附存储和能量转移材料领域,产品较为单一,性能还无法满足需要,而且生产方法对设备要求较高,成本高,还无法实现工业化生产。
发明内容
本发明针对现有技术存在的上述不足,提供酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的制备方法。
本发明的目的是通过以下技术方案来实现的:
本发明涉及酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的制备方法,其包括如下步骤:
将八羟基酞菁锌、2,7-芘二硼酸、单壁碳纳米管加入溶剂A中,超声分散形成悬浮液A;
将所述悬浮液A经过至少3次液氮冷冻-抽真空-脱气处理,密封后在130℃下反应96h,得到粗产物B;
将所述粗产物B离心后,收集不溶物,依次用二甲基乙酰胺和丙酮洗涤、干燥后得到复合物产品,复合物中酞菁锌-芘-共价有机框架结构式如下:
其中,所述溶剂A为二甲基乙酰胺和邻二氯苯的混合物。
作为优选方案,所述八羟基酞菁锌与2,7-芘二硼酸的摩尔比为1:2。
作为优选方案,所述二甲基乙酰胺和邻二氯苯的混合物中,二甲基乙酰胺和邻二氯苯的摩尔比为1:1。
作为优选方案,所述八羟基酞菁锌和2,7-芘二硼酸的混合物与单壁碳纳米管的质量比为3:1。
通过多次试验确定了只有在130℃的反应温度下,酞菁锌-芘-共价有机框架/单壁碳纳米管复合物才能充分形成。
作为优选方案,所述单壁碳纳米管的长度为5~15μm,直径为2nm。
与现有技术相比,本发明具有如下的有益效果:
1、本发明的方法首次合成酞菁锌-芘-共价有机框架/单壁碳纳米管复合物,与多壁碳纳米管相比,单壁碳纳米管具有较高的化学惰性,表面更为纯净,将单壁碳纳米管和共价有机框架形成复合材料,将在复合材料应用领域有广阔的前景;
2、本发明的方法绿色无污染,对设备的要求简单,适合工业化大规模生产。
附图说明
通过阅读参照以下附图对非限制性实施例所作的详细描述,本发明的其它特征、目的和优点将会变得更明显:
图1为酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的电镜图;
图2为实施例1制备的酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的X射线衍射图谱。
具体实施方式
下面结合具体实施例对本发明进行详细说明。以下实施例将有助于本领域的技术人员进一步理解本发明,但不以任何形式限制本发明。应当指出的是,对本领域的普通技术人员来说,在不脱离本发明构思的前提下,还可以做出若干变形和改进。这些都属于本发明的保护范围。
实施例1
本实施例提供的酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的制备方法如下:
步骤一,取7.1mg八羟基酞菁锌,5.8mg的2,7-芘二硼酸,5mg的单壁碳纳米管,加入1ml的二甲基乙酰胺(DMAc)和1ml的邻二氯苯(o-DCB)溶剂,放入10ml的耐热玻璃反应管中,超声分散10分钟形成悬浮液A;
步骤二,悬浮液A经过3次液氮冷冻-抽真空-脱气步骤,密封,在130℃温度反应96小时,得到粗产物B。
步骤三,将粗产物B离心后用2ml的二甲基乙酰胺和2ml的丙酮溶剂各清洗2次,干燥得到酞菁锌-芘-共价有机框架/单壁碳纳米管复合物。
实施效果,本实施例制备的酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的电镜照片如图1所示,可以清晰看出酞菁锌-芘-共价有机框架明显包覆在单壁碳纳米管上。其X射线衍射图如图2所示,其中3.2度和6.5度的是酞菁锌-芘-共价有机框架特征峰,26.3度是单壁碳纳米管的特征峰。根据实验数据由BET理论从吸附等温线计算出材料的比表面积为678m2g-1。
以上对本发明的具体实施例进行了描述。需要理解的是,本发明并不局限于上述特定实施方式,本领域技术人员可以在权利要求的范围内做出各种变形或修改,这并不影响本发明的实质内容。
Claims (4)
1.酞菁锌-芘-共价有机框架/单壁碳纳米管复合物的制备方法,其特征在于,包括如下步骤:
将八羟基酞菁锌、2,7-芘二硼酸、单壁碳纳米管加入溶剂A中,超声分散形成悬浮液A;
将所述悬浮液A经过至少3次液氮冷冻-抽真空-脱气处理,密封后在130℃下反应96h,得到粗产物B;
将所述粗产物B离心后,收集不溶物,依次用二甲基乙酰胺和丙酮进行洗涤、干燥后得到产品,
其中,所述溶剂A为二甲基乙酰胺和邻二氯苯的混合物。
2.如权利要求1所述的制备方法,其特征在于,所述八羟基酞菁锌与2,7-芘二硼酸的摩尔比为1:2。
3.如权利要求1所述的制备方法,其特征在于,所述八羟基酞菁锌和2,7-芘二硼酸的混合物与单壁碳纳米管的质量比为3:1。
4.如权利要求1或3所述的制备方法,其特征在于,所述单壁碳纳米管的长度为5~15μm,直径为2nm。
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Cited By (4)
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CN106328391A (zh) * | 2016-08-30 | 2017-01-11 | 上海交通大学 | 共价有机框架复合材料、复合电极的制备方法及应用 |
CN109232906A (zh) * | 2018-09-20 | 2019-01-18 | 福建师范大学 | 多氟烷基轴向取代硅(iv)酞菁-碳纳米管纳米超分子体系及其制备方法与应用 |
CN110164716A (zh) * | 2019-05-31 | 2019-08-23 | 上海交通大学 | 一种基于共价有机框架材料的薄膜电极的制备方法 |
CN112979975A (zh) * | 2021-02-02 | 2021-06-18 | 上海交通大学烟台信息技术研究院 | 一种包含两种金属离子的共价有机物框架材料的制备方法 |
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CN106328391A (zh) * | 2016-08-30 | 2017-01-11 | 上海交通大学 | 共价有机框架复合材料、复合电极的制备方法及应用 |
CN109232906A (zh) * | 2018-09-20 | 2019-01-18 | 福建师范大学 | 多氟烷基轴向取代硅(iv)酞菁-碳纳米管纳米超分子体系及其制备方法与应用 |
CN110164716A (zh) * | 2019-05-31 | 2019-08-23 | 上海交通大学 | 一种基于共价有机框架材料的薄膜电极的制备方法 |
CN110164716B (zh) * | 2019-05-31 | 2021-03-30 | 上海交通大学 | 一种基于共价有机框架材料的薄膜电极的制备方法 |
CN112979975A (zh) * | 2021-02-02 | 2021-06-18 | 上海交通大学烟台信息技术研究院 | 一种包含两种金属离子的共价有机物框架材料的制备方法 |
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