摘要
CO_(2)排放导致的一系列环境问题,引起广泛关注,金属有机框架(MOFs)因其超高的孔隙率比表面积,被认为是捕集CO_(2)的理想材料。采用微波辅助合成Ni-gallate(镍基没食子酸金属有机框架),并借助扫描电子显微镜(SEM)、傅里叶变换红外光谱(FT-IR)、X射线衍射(XRD)等表征手段进行分析。结果表明:相较于传统水热合成,微波辅助合成的材料有着较高的结晶度和规则的尺寸形貌,在25℃时表现出更高的CO_(2)吸附量(3.82mmol/g)。结合微波辅助合成快速高效的优点,通过相转化法和聚酰亚胺复合得到的聚合物材料,不仅具有良好的CO_(2)吸附性能,而且有着优异的机械和热稳定性,有进一步发展成为工业CO_(2)捕集材料的潜力。
CO_(2)emissions have caused a series of environmental problems and attracted widespread attention.Metal-organic frameworks(MOFs)are considered ideal materials for CO_(2)capture due to their well-developed porosity and high specific surface area.Ni-gallate(nickel-based gallate MOFs)was synthesized using microwave-assisted synthesis method.The obtained samples were characterized by scanning electron microscopy(SEM),Fourier transforms infrared spectroscopy(FT-IR),X-ray diffraction(XRD),etc.The results showed that the microwave-synthesized Nigallate had higher crystallinity and regular morphology compared to the conventional hydrothermal synthesis,and exhibited higher CO_(2)adsorption capacity(3.82mmol/g)at 25℃.Combined with the advantages of rapid and efficient microwave-assisted synthesis,the Ni-gallate polymer composite obtained by phase conversion and polyimide composite not only displayed good CO_(2)adsorption properties,but also had excellent mechanical and thermal stability,which had great potential to be further developed as industrial CO_(2)capture materials.
作者
翟尚鹏
王延民
王建国
Zhai Shangpeng;Wang Yanmin;Wang Jianguo(Nanjing Zezhong Environmental Protection Technology Co.,Ltd.,Nanjing 210012;College of Chemical Engineering,Zhejiang University of Technology,Hangzhou 310000)
出处
《化工新型材料》
CAS
CSCD
北大核心
2023年第S01期224-227,233,共5页
New Chemical Materials
