典型文献
U(VI) adsorption behavior onto polypyrrole coated 3R-MoS2 nanosheets prepared with the molten salt electrolysis method
文献摘要：
To improve the separation capacity of uranium in aqueous solutions, 3R-MoS2 nanosheets were prepared with molten salt electro-lysis and further modified with polypyrrole (PPy) to synthesize a hybrid nanoadsorbent (PPy/3R-MoS2). The preparation conditions of PPy/3R-MoS2 were investigated and the obtained nanosheets were characterized with scanning electron microscope (SEM), high resolution transmis-sion electron microscope (HRTEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectro-scopy (XPS). The results showed that PPy/3R-MoS2 exhibited enhanced adsorption capacity toward U(VI) compared to pure 3R-MoS2 and PPy; the maximum adsorption was 200.4 mg/g. The adsorption mechanism was elucidated with XPS and FTIR: (1) negatively chargedPPy/3R-MoS2 nanosheets attracted by an electrostatic interaction; (2) exposed C, N, Mo, and S atoms complexed with U(VI) through co-UO2+2 ordination; (3) Mo in the complex partly reduced the adsorbed U(VI) to U(IV), which further regenerated the adsorption point and continu-ously adsorbed U(VI). The design of the PPy/3R-MoS2 composite with a high adsorption capacity and chemical stability provides a new direc-tion for the removal of radionuclide.
文献关键词：
中图分类号：
作者姓名：
Yuhui Liu;Meng Tang;Shuang Zhang;Yuling Lin;Yingcai Wang;Youqun Wang;Ying Dai;Xiaohong Cao;Zhibin Zhang;Yunhai Liu
作者机构：
State Key Laboratory of Nuclear Resources and Environment,East China University of Technology,Nanchang 330013,China;School of Nuclear Science and Engineering,East China University of Technology,Nanchang 330013,China
文献出处：
引用格式：
[1]Yuhui Liu;Meng Tang;Shuang Zhang;Yuling Lin;Yingcai Wang;Youqun Wang;Ying Dai;Xiaohong Cao;Zhibin Zhang;Yunhai Liu-.U(VI) adsorption behavior onto polypyrrole coated 3R-MoS2 nanosheets prepared with the molten salt electrolysis method)[J].矿物冶金与材料学报,2022(03):479-489
A类：
nanoadsorbent,chargedPPy
B类：
VI,adsorption,behavior,onto,polypyrrole,coated,3R,MoS2,nanosheets,prepared,molten,salt,electrolysis,method,To,improve,separation,capacity,uranium,aqueous,solutions,were,further,modified,synthesize,hybrid,preparation,conditions,investigated,obtained,characterized,scanning,microscope,high,resolution,transmis,sion,HRTEM,ray,diffraction,Fourier,transform,infrared,spectroscopy,FTIR,photoelectron,XPS,results,showed,that,exhibited,enhanced,toward,compared,pure,maximum,was,mechanism,elucidated,negatively,attracted,by,electrostatic,interaction,exposed,atoms,complexed,through,UO2+2,ordination,partly,reduced,adsorbed,IV,which,regenerated,point,continu,ously,design,composite,chemical,stability,provides,new,direc,removal,radionuclide
AB值：
0.512485
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