原子级单分散Fe催化剂的高效合成及在可见光下染料降解性能的研究  

Study on High-efficiency Synthesis of Monodisperse Fe Catalyst and Properties of Visible Light Degradation

作　　者：韩旭[1,2] 漆舒羽 张锋伟 张献明 HAN Xu;QI Shuyu;ZHANG Fengwei;ZHANG Xianming(Institute of Crystal Materials,Shanxri University,Taiyuan 030006,China;Institute of Molecular Science,Taiyuan 030006,China;College of Environmental Science and Engineering.Taiyuan University of Technology.Jinzhong 030600,China)

机构地区：[1]山西大学晶态材料研究所,山西太原030006 [2]山西大学分子科学研究所,山西太原030006 [3]太原理工大学环境科学与工程学院,山西晋中030600

出　　处：《山西大学学报（自然科学版）》2020年第3期552-558,共7页Journal of Shanxi University(Natural Science Edition)

基　　金：国家自然科学基金(21703129)。

摘　　要：传统铁基催化材料制备流程的复杂性和染料降解过程中所产生的二次污染问题一直困扰着人们。基于此,通过可控热解法制备了一种单分散Fe原子锚定于氮掺杂碳骨架的新型光敏催化剂。物理吸附仪、透射电镜和X-射线粉末衍射等多种表征技术证明合成的催化剂具有高比表面积及丰富且高度暴露的Fe活性位。该单分散Fe催化剂在30 min内对罗丹明B的降解率达到96.8%且循环反应8次活性变化不大。这种单分散Fe催化剂及其简便且高效的制备方法在快速降解工业有机染料方面具有潜在应用价值。People are plagued by the complexity of the traditional iron-based catalytic material preparation process and the secondary pollution generated during the dye degradation process.We prepared a photoca-talyst with the monodisperse Fe atom anchored on the nitrogen-doped carbon skeleton by controlled pyrolysis.The various characterization techniques such as physical adsorption,transmission electron microscopy and X-ray powder diffraction have proved that the synthesized catalyst has a high specific surface area and rich highly exposed Fe active sites.The degradation rate of Rhodamine B in the monodisperse Fe catalyst reached 96.8%within 30 min and the activity of the cyclic reaction did not change obviously after 8 cycles of cyclic reaction.Therefore,this monodisperse Fe catalyst and its simple and efficient preparation method are potentially applicable in rapidly degrading industrial organic dyes.

关 键 词：氮化碳 酞菁铁 原子分散的催化剂 有机染料 可见光降解 

分 类 号：O643.3[理学—物理化学]