甲基橙
吸附
X射线光电子能谱
扫描电子显微镜
热液循环
透射电子显微镜
材料科学
化学工程
朗缪尔吸附模型
钼酸钠
水热合成
甲基蓝
微观结构
钼酸盐
核化学
分析化学(期刊)
光催化
化学
纳米技术
色谱法
有机化学
复合材料
催化作用
冶金
工程类
作者
Hua Tang,Hong Huang,Xiaoshuai Wang,Kongqiang Wu,Guogang Tang,Changsheng Li
标识
DOI:10.1016/j.apsusc.2016.04.086
摘要
In this paper, we report a facile and versatile modified hydrothermal method for synthesis of three-dimensional (3D) hierarchical flower-like MoSe2 microspheres using selenium powders and sodium molybdate as raw materials. The as-prepared MoSe2 was investigated for application as an adsorbent for the removal of dye contaminants from water. Power X-ray diffraction (XRD), energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscope (XPS) and N2 adsorption-desorption analysis were carried out to study the microstructure of the as-synthesized product. A possible growth mechanism of MoSe2 flower-like microspheres was preliminarily proposed on the basis of observation of a time-dependent morphology evolution process. Moreover, the MoSe2 sample exhibited good adsorption properties, with maximum adsorption capacity of 36.91 mg/g for methyl orange. The adsorption process of methyl orange on 3D hierarchical flower-like MoSe2 microspheres was systematically investigated, which was found to obey the pseudo-second-order rate equation and Langmuir adsorption model.
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