MoS_(2)上Cu_(2)O的担载及催化性能研究  

Cu_(2)O Supported on MoS_(2)and Catalytic Performance on Cu_(2)O/MoS_(2)

作　　者：陈晓伟 刘璐[1] Chen Xiaowei;Liu Lu(Harbin Normal University)

机构地区：[1]哈尔滨师范大学

出　　处：《哈尔滨师范大学自然科学学报》2021年第3期66-70,共5页Natural Science Journal of Harbin Normal University

基　　金：黑龙江省自然基金(LC2016002)。

摘　　要：采用两步水热法制备了Cu_(2)O/MoS_(2)催化剂,首先,通过水热法获得层状的MoS_(2)纳米片,然后在MoS_(2)纳米片上合成Cu_(2)O纳米颗粒,形成负载型Cu_(2)O/MoS_(2)催化剂.通过X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)等手段对催化剂的结构进行表征,并以NaBH4还原对硝基苯酚(4-NP)为探针反应评价其催化性能.研究表明,担载之后,Cu_(2)O纳米粒子均匀分散在MoS_(2)载体表面,粒子尺寸明显减少,由此催化NaBH4还原4-NP的性能也得到了显著改善.In this paper,Cu_(2)O/MoS_(2)catalysts with MoS_(2)as supported were prepared using hydrothermal method.Firstly,layered MoS_(2)nanosheets were obtained under hydrothermal conditions,and then Cu_(2)O nanoparticles were produced on MoS_(2)nanosheets using Cu(NO3)2·3 H2O as copper source under a second hydrothermal treatment.X-ray diffraction(XRD),scanning electron microscope(SEM)and transmission electron microscope(TEM)techniques were performed to characterize their structure.In the meantime,catalytic test for Cu_(2)O/MoS_(2)catalysts were investigated using the reduction of 4-NP by NaBH4 as probe reaction.The results show that Cu_(2)O nanoparticles have a homogeneous dispersion on MoS_(2)support,consequently the particle size decreased a lot and improved catalytic performance toward the reduction of 4-NP by NaBH4 was obtained.

关 键 词：Cu2O/MoS2 复合催化剂 催化 4-NP 

分 类 号：O64[理学—物理化学]