花球状Se/MoSe2的制备及其吸附有机染料的性能  

Preparation of flower globular Se/MoSe2 and its adsorption properties of organic dyes

作　　者：亓淑艳[1] 赵亚栋 马宁龙 胥焕岩[1] 刘志海[2] QI Shuyan;ZHAO Yadong;MA Ninglong;XU Huanyan;LIU Zhihai(School of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150080, China;College of Science, Harbin Engineering University, Harbin 150001, China)

机构地区：[1]哈尔滨理工大学材料科学与工程学院,黑龙江哈尔滨150080 [2]哈尔滨工程大学理学院,黑龙江哈尔滨150001

出　　处：《哈尔滨工程大学学报》2020年第5期747-752,共6页Journal of Harbin Engineering University

基　　金：国家自然科学基金青年基金项目(51404083)。

摘　　要：针对有机污染物难降解的问题,采用水热法在不同温度和时间条件下制备了Se/MoSe2样品,研究了Se/MoSe2对有机染料的吸附效果。利用XRD、SEM、TEM和X射线荧光光谱等表征手段,发现样品含有Se和MoSe2两相,形貌是一些交错的纳米片自组装构成的花球状结构。试验表明:样品的比表面积随着水热时间和水热温度的增加而增大。当水热时间超过12 h,水热温度超过260℃,且在12 min的反应时间内,样品的吸附率都可以达到97%以上,这可能是由于比表面积的增加,游离Se存在,π-π相互作用和MoSe2表面疏水性共同作用的结果。Aiming at the problem of the difficult degradation of organic pollutants,Se/MoSe2 samples were prepared by a hydrothermal method under different temperature and time conditions,and the adsorption effect of Se/MoSe2 on organic dyes was studied.With the aid of X-ray diffraction,scanning electron microscopy,transmission electron microscopy,and X-ray fluorescence spectroscopy,we found that the sample contained two phases of Se and MoSe2 and exhibited a morphology of flower globular structure composed of self-assembled staggered nanosheets.The specific surface area of the sample increased with an increase in the hydrothermal time and temperature.When the hydrothermal time exceeded 12 h and the hydrothermal temperature exceeded 260℃,the adsorption rate of the sample could reach 97%or more within a reaction time of 12 min.This may be caused by factors such as an increase in the specific surface area,the existence of free Se,and the combined action of theπ-πinteraction and the hydrophobicity of the surface of MoSe2.

关 键 词：水热法 非晶态 MoSe2 游离Se 花球状 吸附性 比表面积 罗丹明B 

分 类 号：TQ424.2[化学工程]