摘要
以氯化镁(MgCl_2)和尿素(CO(NH_2)_2)为原料,采用水热法制备了氧化镁(MgO)纳米片前驱体,并通过后续焙烧处理得到MgO多孔纳米片。采用扫描电子显微镜(SEM)、透射电子显微镜(TEM)、广角X-射线粉末衍射(XRD)、红外光谱(FT-IR)、热重(TG)以及氮气吸附-脱附(N_2 adsorption-desorption)等多种手段对前驱体以及MgO纳米片进行了表征。结果表明,得到的MgO呈二维片状结构,无杂相,晶化度高且尺寸均一。相比于商品化MgO纳米颗粒,该MgO纳米片表现出了较好的催化合成查尔酮性能,其产率可达60%。
MgCl2 and CO(NH2)2 were used as raw materials to prepare MgO porous nanosheets via hydrothermal method followed by calcination. SEM, TEM, XRD, FT-IR, TG and N2 adsorption-desorption were applied to characterize the MgO nanosheets and its precursor in details. Results showed that the as-prepared MgO nanosheets possessed two-dimensional sheet structure with an advance of pure phase, high crystallinity and uniform size. Compared with commercial MgO nanoparticles, the MgO nanosheets displayed high catalytic activity for synthesizing Chalcone with 60% productivity.
作者
曲阳
梁松岩
余俊
李浩男
王国凤
QU Yang;LIANG Songyan;YU Jun;LI Haonan;WANG Guofeng(School of Chemistry and Materials Science, Key Laboratory of Functional Inorganic Material Chemistry,Ministry of Education, Heilongjiang University, Harbin 150080, China)
出处
《黑龙江大学自然科学学报》
CAS
2019年第2期196-200,共5页
Journal of Natural Science of Heilongjiang University
基金
国家自然科学基金资助项目(2150105
21473051)
哈尔滨市科技创新人才研究专项资金资助项目(2016RQQXJ099)
关键词
氧化镁
多孔纳米片
水热法
查尔酮
MgO
porous nanosheets
hydrothermal method
chalcone
