Facile preparation of α-Fe2O3 nanorods and the promotion in Cr(VI) adsorption

4th International Conference on Advanced Composite Materials and Manufacturing Engineering 2017

材料科学;化学

Liu, Jie^1 ; Li, Ying^1 ; Xiao, Huining^1 ; Ke, Jun^2

Department of Environmental Science and Engineering, North China Electric Power University, Baoding

071003, China^1

School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan

430073, China^2

关键词: Adsorption capacities;    Chemical process;    Facile preparation;    Field emission scanning electron microscopy;    Fine dispersions;    Hydrothermal process;    Langmuir adsorption model;    Pseudo-second order model;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/207/1/012075/pdf
DOI  :  10.1088/1757-899X/207/1/012075

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

We present a simple and effective method for the fibracation of α-Fe2O3nanorods by a hydrothermal process. Field-emission scanning electron microscopy (SEM), X-ray diffraction (XRD) and N2adsorption-desorption are used to analyze the morphology, phase structure and surface area for the as-prepared α-Fe2O3nanorods, implying the fine dispersion of nanorods as well as the much increased surface area. The adsorption capacity of the material was evaluated by the adsorption of Cr(VI) in waste water, and the α-Fe2O3nanorods exhibts the enhanced performance compared with the normalα-Fe2O3nanoparticles. The adsorption of Cr(VI) on α-Fe2O3nanorods fits the Langmuir adsorption model, and was controlled by the chemical process according to the high correlation to the pseudo-second-order model.